VISIONr TECHNICAL MANUAL Issue 3. VISIONr. Technical Manual

Transcription

1 VISIONr Technical Manual

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3 Contents 1 INTRODUCTION Protection Functions Real Time Metering Data TECHNICAL SPECIFICATION Power Supply Measurement Protection Functions Relay Contacts Ratings ENVIRONMENTAL TESTS FUNCTIONAL BLOCK DIAGRAM FRONT PANEL LCD and Keypad Status LEDs RS232 connection Protection Enabled (Pushbutton and Indicator) Live Line Enabled (Pushbutton and Indicator) Earth Fault Enabled (Pushbutton and Indicator) Reclose Enabled (Pushbutton and Indicator) Remote Enabled (Pushbutton and Indicator) AUX 1 (Pushbutton and Indicator) AUX 2 (Pushbutton and Indicator) AUX 3 (Pushbutton and Indicator) TRIP (Pushbutton and Indicator) CLOSE (Pushbutton and Indicator) PROTECTION SETTING SUMARY GRAPHICAL DISPLAY Menu Screens DISPLAY SCROLL Data Menu Measured Values Digital Values Analogue Values Disturb Values Stats Fault Data Active Faults Last Fault Last Trip Last Alarm Fault History Trip History Alarm History SER Summary Breaker Control Settings Menu Control Settings Breaker Settings...23 Page 3 of 66

4 Digital Inputs Relay Outputs Protection Settings Protective Functions System Settings Feeder Settings Serial Settings Unit Settings Smart Card Settings CONTROL OUTPUTS OUTPUT RELAYS Relay Functions Close Trip Not Used Warn Warn Alarm Indicator Alarm Fail-Safe Indicator 1-4 Fail-Safe Serial Available Panel Available Remote Available Trip and Lockout Follow A Follow B Gas Pressure Alarm Sequence Lockout Protection Enabled E/F Protection Enabled Live Line Enabled Reclose Enabled Aux 1-3 Enabled Supply Missing FS Internal Error FS CONTROL INPUTS PROGRAMMABLE INPUTS Reset Fault Auto/Manual and Local/Remote Inputs Test / Service Authorise Blocking Input External Fault Protection E/F Protection Live Line Reclose Aux BREAKER SETTINGS Panel Close Delay Panel Open Delay Overcurrent Pickup Level Earthfault Pickup Level Ve Pickup Level Ie Direction Ie Sector...34 Page 4 of 66

5 Cold Load Pickup Sequence Reset Time Sequence Co-ordination Auto Reclose Phase Auto Reclose Earth Dead Times Reclaim Time FEEDER SETTINGS Overcurrent Poles CT Primary VT Primary VT Secondary Voltage Constant Current Rating (CCR) EFCT Primary kw Sample Period SERIAL SETTINGS RS RS SERIAL SETTINGS DISTURBANCE RECORDING TRIP HISTORY SEQUENTIAL EVENT RECORDER (SER) UNIT SETTINGS...44 SMART CARD SETTINGS PROTECTION SETTINGS Protection Functions Undervoltage Overvoltage Single Shot Overcurrent Single Shot Overcurrent High set Single Shot Earth fault Single shot Earth Fault High set Overcurrent High Set Earth Fault High Set Cold load Pickup Cold load Pickup high set Earth Fault Cold load Pickup Earth fault Cold load Pickup high set Live Line overcurrent Live Line Earth fault Load Increase Over Power Over Frequency Under Frequency Breaker Programmable External Fault Serial Timeout Internal Error Overcurrent Overcurrent 1-4 High set Earth fault Earth fault 1-4 High set INVERSE OVERCURRENT RELAY Inverse time phase overcurrent relay...59 Page 5 of 66

6 Inverse time characteristics APPENDIX 1 FAST SCAN NUMBERS...60 APPENDIX 2 EXAMPLE OF AN OVERCURRENT SER EVENT...61 APPENDIX 3 SER BINARY EVENT LIST...62 APPENDIX 4 INTERFACE BOARD DETAILS...63 APPENDIX 5 DIRECTIONAL EARTH FAULT...65 APPENDIX 6 MODBUS RTU/ASCII...66 Page 6 of 66

7 1 INTRODUCTION. The VISIONr is a sophisticated microprocessor based autoreclose protection relay designed specifically for the FKI made Horizon circuit breaker and GVR pole mounted recloser. The relay measures currents and voltages in the main circuit. This enables the relay to provide flexible autoreclose protection and also a comprehensive range of metered data. All of the setting parameters can be programmed using the integral keypad and LCD. A RS232 connection on the front of the relay permits setting data to be retrieved from the relay or downloaded from a PC. This connection also permits disturbance records to be retrieved for viewing. A RS485 connection on the rear of the relay permits full control of the relay via a number of communication protocols. The relay provides optically isolated inputs for control of the relay. The status of these inputs is available via the integral LCD. The relay also provides a number of relay contact outputs. These can be configured to provide indication of the relay status. During operational conditions the LCD also gives access to accurate load, statistical and fault data. The protection functions provided by the relay are summarised below: PROTECTION FUNCTIONS. Up to 4 Trips to Lockout for Phase Protection. Up to 4 Trips to Lockout for Earth Fault Protection. Time Delayed Characteristic for each trip. Instantaneous / Definite Time Characteristic for each trip. 3 separate Dead Times. Reclaim Time. Cold Load Pick Up. Auto / 1 Shot protection. Live Line Undervoltage Protection. Overvoltage Protection. Load Increase Protection Over-Power Protection Over-Frequency Protection Under-Frequency Protection Breaker Fail Protection Serial Timeout protection Internal Error Protection The metering functions provided by the relay are summarised below: REAL TIME METERING DATA. Phase Currents Earth Fault Current Phase Volts Phase Power kw Phase Power Factor Phase Apparent Power Phase Real Power Kilowatt Hours Total Power No. of Operations Page 7 of 66

8 2 TECHNICAL SPECIFICATION. 2.1 POWER SUPPLY. Auxiliary Power Supply & Low Voltage Power Supply AC Nominal Frequency Maximum Power Consumption Range V AC / DC Hz 10VA 2.2 MEASUREMENT. Phase Current Measurement Method True RMS, Sample time <1ms Full Scale 25 x CT Primary Amps Setting Burden <0.1VA Accuracy ± 3% Earth Current Measurement Method True RMS, Sample time <1ms Full Scale 2.5 x CT Primary Amps Burden <0.1VA Accuracy ± 3% Voltage Measurement Method True RMS, Sample time <1ms Rated Insulation Voltage 1kV Range V Display Accuracy ± 3% VT Burden 0.01 VA 2.3 PROTECTION FUNCTIONS. I n s ta n t a n e o u s /D e f in i t e T i m e E l e m e n t s F a u lt T im e A c c u r a c y P ic k u p A c c u r a c y M in im u m R e s p o n s e T im e F a u lt T im e A c c u r a c y P ic k u p A c c u ra c y M in im u m R e s p o n s e T im e T i m e - O v e r c u r r e n t E l e m e n ts ± 2 0 m S a n d ± 1 % o f s e t tin g ± 1 0 m A a n d ± 3 % o f s e t t in g 5 0 m S ± 2 0 m S a n d ± 5 % ( t o E N ) o f c u rv e t im e f o r c u rr e n ts b e t w e e n 2 & 2 0 m u lt ip le s o f p ic k u p ± 1 0 m A a n d ± 3 % o f s e t t in g 5 0 m S 2.4 RELAY CONTACTS RATINGS. O u t p u t R e la y s R a te d L o a d A C V D C M a x im u m O p e r a tin g V o lta g e V A C M a x M a k in g C u r r e n t 1.2 A M a x B r e a k in g C u r r e n t m A Page 8 of 66

9 3 ENVIRONMENTAL TESTS. CLIMATIC Test standard Severity level Temperature Dry Cold Operational IEC deg C,96 hrs Temperature Dry Cold Transportation & Storage IEC deg C, 96hrs Temperature Dry Heat Operational IEC deg C, 96 hrs Temperature Dry Heat IEC deg C, 96 hrs Transportation & Storage Damp Heat Steady State IEC % Non-condensing, Cyclic Test Db Enclosure IEC front IP52, rear IP00 MECHANICAL Vibration IEC Class I Shock & Bump IEC Class I Seismic IEC Class I ELECTRICAL Insulation resistance IEC Vdc, 5 secs Dielectric Test IEC Series C of table kv 50Hz, 1 min 1.0 kv open contacts, 1 min High Voltage Impulse IEC kv peak 1.2/50uS,0.5J 3 pos, 3 neg Voltage Dips, Short Interruptions & Voltage variations immunity IEC IEC dips & 3 interruptions at 10 sec intervals of duration between 10mS and 500mS at zero crossings. Variations 40% &70% Ripple in dc supply IEC % ac ripple VT input Thermal Withstand 120% Vn, continuous CT input Thermal Withstand 250xIn half wave,100xin for 1 second 30xIn for 10 second,4xin cont. ELECTROMAGNETIC COMPATIBILITY Electrical fast Transient/Burst IEC IEC Class IV-4.0kv Power supply Class III -2.0 kv Other inputs 1 min each polarity Oscillatory Waves 1 Mhz Burst IEC Class III Longitudinal 2.5 kv, 2sec Transverse 1.0 kv, 2 sec Electrostatic Discharge IEC Class III 8 kv contact 15kV air discharge, 10 discharges at 1 sec intervals Conducted Disturbance RF fields IEC to 80 Mhz Severity Level 10Vrms +sweeps MHz & MHz Page 9 of 66

10 Radiated e-m field ENV & 1890mhz at 10V/m from digital portable telephones Radiated RF e-m field immunity test IEC ClassIII test method A +sweep mhz or IEC mhz severity 10V/m 80% modulated 1 khz Surge Immunity IEC kV common mode 2kV differential mode, 1.2/50uS Power Frequency Magnetic Field IEC A/m for 1 sec,100a/m for 1 minute Pulse Magnetic Field IEC /16uS, 1000A/m Damped Oscillatory Magnetic Field IEC & 1.0 Mhz, 100A/m Immunity Conducted & Radiated RF Interference Emission EN55022 or EN55011or EN Class A interference limits Power frequency conducted immunity, common mode IEC IEC DC to 150kHz sweep test level 4 300V at 16 2/3 & 50/60Hz Page 10 of 66

11 4 FUNCTIONAL BLOCK DIAGRAM. The VISIONr relay is equipped with 4 x CT inputs for Phase Current and Earth fault measurement. The Earth CT can be residually connected from the 3 x Phase CT s as an alternative to the above diagram. Three (3) Phase to Neutral VT inputs are used to monitor the voltage of a 3 phase system. Normal VT s can be connected or Capacitive VTs can be used as shown above. A residual neutral voltage is calculated which is used to determine the direction of earth fault current for required applications. Alternatively when this residual voltage is not required a fourth VT input is available for check synchronisation. As standard the VISIONr has twelve (12) optically isolated (9 programmable) digital inputs with a separate control voltage source to allow for either dc or ac inputs without consideration needed to be given to the auxiliary supply voltage. Eight (8) changeover contact output relays are provided on the relay, Outputs 1 and 2 are set as Trip and Close allowing the other 6 to be freely programmed. Page 11 of 66

12 5 FRONT PANEL. The relay front panel provides the following features: - (reference front cover sheet) 5.1 LCD AND KEYPAD. The LCD and keypad have been designed to display and access all the information an operator may require. The LCD is a fully graphic display and is navigated by 4 software driven function keys. On each screen appropriate options are displayed adjacent to the 4 keys. This allows the user to easily navigate through the screens Status LEDs Two tri-colour LEDS immediately beneath the display provide information about the breaker and relay status. The LED's operate as follows: N/A Not Applicable RS232 connection. LED Colour Left LED [Gas Pressure Status] Right LED [Fault Status] Green Gas Pressure Healthy Healthy Yellow Gas Pressure Fail N/A Red N/A Sequence Lockout A RS232 connection on the front panel permits downloading of settings and retrieval of historic data Protection Enabled (Pushbutton and Indicator). This button enables the protection functions of the relay. The associated LED illuminates to show that Protection is enabled. If protection is not enabled then the relay will not respond to fault level currents Live Line Enabled (Pushbutton and Indicator). This button switches all protection features to a single instantaneous trip for both the phase and earth fault protection, as denoted by the Live Line protection settings. The associated LED illuminates to show that Live Line protection is enabled Earth Fault Enabled (Pushbutton and Indicator). This button enables the Earth Fault protection functions. The associated LED illuminates to show that Earth Fault protection is enabled. Page 12 of 66

13 5.1.6 Reclose Enabled (Pushbutton and Indicator). This button enables autoreclosing. The associated LED illuminates to show that Reclose is enabled. If Reclose is not enabled then the relay will respond to any fault condition with a single trip in accordance with its Single Shot settings Remote Enabled (Pushbutton and Indicator). This button enables remote control of the relay and circuit breaker. The button must be continuously pressed for 3 seconds in order to enable or disable remote control. The associated indicator illuminates to show that Remote control is enabled. If Remote control is enabled then the relay and breaker will respond to the hardwired digital inputs and to control commands received via the rear communications port AUX 1 (Pushbutton and Indicator). This button provides for a future auxiliary function. The associated indicator illuminates to show that this auxiliary function is selected AUX 2 (Pushbutton and Indicator). This button provides for a future auxiliary function. The associated indicator illuminates to show that this auxiliary function is selected AUX 3 (Pushbutton and Indicator). This button provides for a future auxiliary function. The associated indicator illuminates to show that this auxiliary function is selected TRIP (Pushbutton and Indicator). This button sends an open pulse to the circuit breaker. The associated indicator illuminates to show that the breaker is in the open position CLOSE (Pushbutton and Indicator). This button sends a closing pulse to the circuit breaker. The associated indicator illuminates to show that the breaker is in the closed position. Page 13 of 66

14 6 PROTECTION SETTING SUMARY. ANSI No. 50/ n/51n 50n 50/51 50 Selectable Option! Not Selectable Extended I/O Version " Not Changeable VISION PMR 50n/51n Earth Fault 2 " 50n 50/ n/51n 50n 50/51 50 Overcurrent 4 HS 50n/51n 50n SHOT 1 PROTECTION SET SHOT 2 PROTECTION SET SHOT 3 PROTECTION SET SHOT 4 PROTECTION SET Protective Function Overcurrent 1 Overcurrent 1 HS Earth Fault 1 Earth Fault 1 HS Overcurrent 2 Overcurrent 2 HS Earth Fault 2 HS Overcurrent 3 Overcurrent 3 HS Earth Fault 3 HS Overcurrent 4 Earth Fault 4 Earth Fault 4 HS Trip " " " " Alarm Warn 1 "!!! "! "!!! " " Warn 2 Active in Test Available Action "! " " "!! "!! "!! "!!! Serial! "!! Earth Fault 3 " " Inhibit Block Auto " Panel "!!!!! Remote Available Reset!!! "!!!!!!! "!!!!!!!!!! Indicators 1-4!!! Change Name Variable Characteristic DEFT, NINV, VINV, EINV Time Multiplier Added Delay s 0.01s Min. Response s 0.01s Trip Level % 1% Trip Time s 0.01s Characteristic DEFT, NINV, VINV, EINV Time Multiplier Added Delay s 0.01s Min. Response s 0.01s Trip Level 2-300% 1% Trip Time s 0.01s Characteristic DEFT, NINV, VINV, EINV Time Multiplier Added Delay s 0.01s Min. Response s 0.01s Trip Level % 1% Trip Time s 0.01s Characteristic DEFT, NINV, VINV, EINV Time Multiplier Added Delay s 0.01s Min. Response s 0.01s Trip Level 2-300% 2% Trip Time s 0.01s Characteristic DEFT, NINV, VINV, EINV Time Multiplier Added Delay s 0.01s Min. Response s 0.01s Trip Level % 1% Trip Time s 0.01s Characteristic DEFT, NINV, VINV, EINV Time Multiplier Added Delay s 0.01s Min. Response s 0.01s Trip Level 2-300% 1% Trip Time s 0.01s Characteristic DEFT, NINV, VINV, EINV Time Multiplier Added Delay s 0.01s Min. Response s 0.01s Trip Level % 1% Trip Time s 0.01s Characteristic Range DEFT, NINV, VINV, EINV Time Multiplier Added Delay s 0.01s Min. Response s 0.01s Trip Level 2-300% 1% Step Trip Time s 0.01s Page 14 of 66

15 ANSI No. Selectable Option Trip Alarm Warn 1 Warn 2! Not Selectable Extended I/O Version " Not Changeable VISION PMR Protective Function 50 Liveline Overcurrent 50n Liveline Earthfault Active in Test Available Action 50/51 Cold Load Pick-Up " 50 CLPU HS 50n/51n 27 Undervoltage H 81L Overvoltage Load Increase Characteristic DEFT, NINV, VINV, EINV Trip Level 8-400% 1% Time Multiplier Trip Level % 1% Trip Time s 0.01s Characteristic DEFT, NINV, VINV, EINV Trip Level 2-200% 1% Time Multiplier Trip Level 2-300% 1% Trip Time s 0.01s Characteristic DEFT, NINV, VINV, EINV Time Multiplier Trip Level % 1% Trip Time s 0.01s Characteristic DEFT, NINV, VINV, EINV Time Multiplier Trip Level 2-300% 1% Trip Time s 0.01s Trip Level % 1% Trip Time s 0.01s Active on Trip 1,2,3,4 Trip Level 2-300% 1% Trip Time s 0.01s Active on Trip 1,2,3,4 Trip Level 50-95% 5% Trip Time s 0.1s Trip Level % 5% Trip Time: 1-60s 1s Trip Level 8-150% 10% Trip Time: 1-120s 1s Trip Level MW 0.1MW Trip Time 1-120s 1s Trip Level 40-70Hz 1Hz Trip Time 1-60s 1s Trip Level 40-70Hz 1Hz Trip Time 1-60s 1s 36fb Breaker Trip Time s 0.1s 36 E/F CLPU " 50n E/F CLPU HS 50/51 CLPU PROTECTION SET SINGLE SHOT PROTECTION O/C Single Shot " Overpower Over Frequency Under Frequency External 1-15 Polarity Off=Fault, On=Fault Trip Time s 0.1s Serial Timeout Timeout In 1-120s 1s Internal Error Inhibit Block Auto Panel Serial Remote Available Reset 50 O/C Sngl. Shot HS 50n/51n E/F Single Shot 50n E/F Sngl. Shot HS 50 50n HIGHCURRENT L/O Overcurrent HS Earth Fault HS Indicators 1-4 Change Name " Variable Range Step Page 15 of 66

16 Additional Settings for CB operation Panel Close Delay 0-60s 1s Panel Open Delay 0-60s 1s Overcurrent Pickup Level Earth Fault Pickup Level 8-400% 1% 2-200% 1% Ve Pickup Level 2-150% 1% Ie Direction Ie Sector Cold Load Pick-Up Auto Reclose Seq. Co-ordination Auto Reclose Phase Auto Reclose Earth Enabled Disabled Auto Single Shot Enabled Disabled 1 Shot 2 Shots 3 Shots 4 Shots 1 Shot 2 Shots 3 Shots 4 Shots Dead Time s 0.01s! Dead Time s 0.01s! Dead Time s 0.01s! Reclaim Time 1-180s 1s! Seq. Reset Time 1-180s 1s Breaker Type GVR 38KV Horizon 15KV Horizon Dead Time Offset 0-60 ten-ms 1 ten-ms!!!!! Settings are only available if VISIONr relay is configured for Directional Earth Fault.! Settings only visible providing the Panel push button Reclose Enabled is on. Dead Times 1, 2 and 3 are the breaker open time between a trip and the subsequent reclose. The Reclaim Time is the time period between a fault current that has cleared and the relay reverting back to Protection Set 1, hence allowing a full sequence to occur again before lockout. The Sequence reset time is the time period that maintains the last protection set characteristics if the breaker is manually closed after a lockout, before then reverting back to Protection Set 1 characteristics. Manual Close and Open delays are the time periods between a panel close or open being requested by the operator and the VISIONr issuing the command to the breaker. This is to allow the operator to gain safe distance before the breaker is operated. The Breaker Type and Dead Time Offsets are configured during factory build and are to ensure correct operation and permissible operation time between the breaker and VISIONr. This is part of the system calibration and should not be altered. The above settings are described in more detail in section 10. Page 16 of 66

17 7 GRAPHICAL DISPLAY. The VISIONr s graphical display provides access to all dynamic and historical data, protection parameter set points and control set-up. 7.1 MENU SCREENS. VISIONr P+B VISION PROTECTION AND CONTROL V Dec :28:16 TESTING FLASH MEMORY 9999 DATA MENU BREAKER CONTROL FEEDER TAG I1:0A I2:0A I3:0A DISPLAY SCROLL 'FAULT'...TRIP IN xxx S BANNER MESSAGE BANNER SETTINGS MENU On power up the VISIONr screen appears for a few seconds. The screen shows the software version and the unit serial number, which should be noted in all correspondence with FKI Switchgear regarding the relay. After the introduction screen disappears then the initial screen appears, shown right. The main portion of the screen shows the three phase currents. Various message banners can appear under different conditions to alert the operator to the present situation. These can be time to trip messages, countdown to reset or clear inhibit messages and so on. The name of the fault condition causing the trip will also appear along with the timer. The four menu driven software keys each navigate to four main areas of the menu structure. These are DISPLAY SCROLL, DATA MENU, BREAKER CONTROL and the SETTINGS MENU. The DISPLAY SCROLL button scrolls through various measured values. This feature is described fully in section 7.2. The DATA MENU button provides access to numerous layered screens that display a multitude of historical and dynamic data the VISIONr is presently metering or has recorded. This feature is described fully in section 7.3. The BREAKER CONTROL button permits operation of the breaker via the LCD and software keys and shows the permitted and inhibited sources of breaker control. This feature is described fully in section 7.4. The SETTINGS MENU button provides access to numerous layered screens that display the full range of settings available within the VISIONr. This feature is described fully in section DISPLAY SCROLL The DISPLAY SCROLL button scrolls in a loop displaying various measured values and drive status data. Any one of these pages can be selected as the default page, so that if the unit is left whilst in a sub menu the screen can return to a pre-selected page after a set time-out period. Examples of the display scroll screens are shown over. Page 17 of 66

18 DATA MENU DISPLAY SCROLL DATA MENU DISPLAY SCROLL DATA MENU DISPLAY SCROLL DATA MENU DISPLAY SCROLL FEEDER TAG FEEDER TAG FEEDER TAG FEEDER TAG BREAKER CONTROL I1:0A I2:0A I3:0A SETTINGS MENU Ie:0.0A Ve:0V Angle:0 o BREAKER CONTROL SETTINGS MENU Av I : 0A Power : 0.0kW Av PF : 0.00 BREAKER CONTROL SETTINGS MENU Freq : 0.0Hz Load : 0% BREAKER CONTROL SETTINGS MENU DATA MENU DISPLAY SCROLL DATA MENU DISPLAY SCROLL DATA MENU DISPLAY SCROLL BREAKER CONTROL FEEDER TAG V1 : 0V V2 : 0V V3 : 0V SETTINGS MENU Status : Open : Healthy : Service BREAKER CONTROL FEEDER TAG SETTINGS MENU Time :13 : 00 : 01 Date :01 / 01 / 04 BREAKER CONTROL FEEDER TAG SETTINGS MENU Those in grey are only applicable to VISIONr when supplied with directional earth fault. 7.3 DATA MENU. Upon pressing the DATA MENU button, the menu buttons automatically change function to suit the next tier of menu access. MEASURED VALUES STATS FAULT DATA The main display scroll screen remains with the last selected page before the data menu button was pressed. The function buttons now allow access to other data pages as shown left. DATA MENU BREAKER CONTROL The following pages describe in detail each sub page of the Data Menu beginning with the Measured Values. Exit, whenever pressed restores the screen to the previous page. FEEDER TAG I1 : 0.00A I2 : 0.00A I3 : 0.00A DISPLAY SCROLL SETTINGS MENU Measured Values. DIGITAL VALUES ANALOGUE VALUES This screen continues to show all the data that is given by the initial screen but there are sub screens accessible to the user by pressing any of the four buttons. DISTURB VALUES Page 18 of 66

19 DIGITAL VALUES ANALOGUE VALUES DISTURB VALUES UP ACB Status Close Open Aux1 Not Used DOWN Digital Inputs CLOSED OPEN OPEN OPEN Digital Values. This screen displays the state of the digital inputs to the relay. The list of data can be scrolled through using the top-left button (UP) and the bottom-left button (DOWN). The status of the 12 digital inputs can be viewed here. A status box to the left of the digital input gives a representation of the voltage on that terminal. A filled box represents an active or energised input, a clear box represents a de-energised input. DIGITAL VALUES ANALOGUE VALUES DISTURB VALUES I1 I2 I3 Ie Load V1 V2 UP DOWN Analogue Inputs 0A 0A 0A 0.0A 0% 0V 0V Analogue Values. This screen displays the values of the analogue inputs to the relay. The list of data can be scrolled through using the top-left button (UP) and the bottom-left button (DOWN). The analogue inputs that can be viewed are as follows: I1 (A) FREQUENCY (Hz) EE BLOCK I2 (A) POWER (W) I3 (A) POWER FACTOR Ve (V) Ie (A) KvAr REAL POWER Ie Angle ( 0 ) LOAD (%) kva APPARENT POWER VOLTAGE (V) DIAG STATUS DIGITAL VALUES UP SELECT Disturb Values. ANALOGUE VALUES DISTURB VALUES DOWN Disturbance Trace View Trace Trace Time Trace Input Enable Ov erwrite Clear Traces Trigger Trigger Position 0 / 100% Empty I1 No On Trip If Disturbance Recording is enabled, this screen is accessible and allows the viewing and configuring of the disturbance traces. This facility is explained in further detail in section 13. Page 19 of 66

20 7.3.2 Stats. UP Stats Hours this Close 0H Total Hours Close 0H kw Hrs Total kw Hours 1 kw Hours 2 RESET The list of data can be scrolled through using the top-left button (UP) and the bottom-left button (DOWN). The bottom-right button takes you back to the DATA MENU. The RESET button (top-right) resets the value highlighted to zero. The list of statistical data is as follows: DOWN Hours this Close Total Hours Closed KW Hours KVA Hours Peak Demand Last Close (Serial, Panel or Remote Close) Last Open (Serial, Panel or Remote Open) (both the above with time and date stamp) Fault Trips Total Closes Fault Data. MEASURED VALUES STATS FAULT DATA This screen lists the options for the viewing of previous alarms and faults that have occurred as well as faults and alarms that are currently active. There are three further screens that are accessible: If a fault occurs which results in a TRIP, the unit automatically displays the active faults page Active Faults. ACTIVE FAULTS LAST FAULT FAULT HISTORY UP RESET ACTIVE FAULTS Supply Missing This menu lists the Active Faults of the relay if there are any. A Reset button will appear if the fault is no longer active and if PANEL RESET is Enabled in the Protection Function. The ' ' next to the fault means that the fault is still active. DOWN The characters preceding the fault description denote the action taken, a T denoting a TRIP, an A denoting an ALARM and an I denotes an INHIBIT Last Fault. ACTIVE FAULTS LAST FAULT FAULT HISTORY The Last Fault menu allows access to the last recorded TRIP and the last recorded ALARM. Both Events would also appear with their time and date stamp at the top of the associated fault history pages. The Analogue data for the last historical event is recorded at the time of Trip or Alarm. Page 20 of 66

21 Last Trip. LAST TRIP LAST ALARM UP Last Trip Earth Fault 4 I1 I2 I3 Io V1 V2 203A 0A 0A 203A 0V 0V This screen shows displays the LAST TRIP event and selected analogue values at the time of the trip. The values are as follows- I1 (A) I0 (A) Temp/Res I2 (A) V (V) Frequency (Hz) I3 (A) TC(%) Power Factor DOWN Last Alarm. This screen displays the same as the LAST TRIP screen above except that it shows the LAST ALARM event that occurred Fault History. ACTIVE FAULTS LAST FAULT FAULT HISTORY Fault History allows viewing of the last 32 TRIP events and the last 32 ALARM events, each event is time and date stamped to the millisecond. The two lists operates on a first-in first-out principle meaning any recent events will force the earliest events from the register. Single events can be deleted providing the password is known Trip History. TRIP HISTORY ALARM HISTORY SER SUMMARY UP VIEW Trip History ARC SEQUENCE 16 : 41 : 47 : / 12 / 05 ARC SEQUENCE 16 : 40 : 30 : / 12 / date & time stamped ev ents Each occurrence in the Trip, Alarm histories and SER Summary will be time and date stamped to an accuracy of 1 millisecond. This can help to identify tripping and alarm trends of the breaker and also to aid identification as to the cause of any cascade tripping sequences. DOWN This facility is explained in further detail in section Alarm History. This screen displays the same as the TRIP HISTORY screen above except that it shows the previous alarm events that have occurred. Page 21 of 66

22 SER Summary. TRIP HISTORY ALARM HISTORY SER SUMMARY UP SER Summary UnderFrequency *D 18 : 03 : 28 : / 11 / 05 UnderFrequency *R 18 : 03 : 28 : / 11 / 05 UnderFrequency *A 18 : 03 : 28 : / 11 / 05 UnderFrequency *P 18 : 03 : 27 : / 11 / 05 The SER Summary or Sequential Event Recorder monitors each element in the SER list. If an element changes state, the control time and date stamps the changes in the SER. This facility is explained in further detail in section 15. DOWN 7.4 BREAKER CONTROL. DATA MENU BREAKER CONTROL FEEDER TAG I1:0A I2:0A I3:0A DISPLAY SCROLL SETTINGS MENU The BREAKER CONTROL page allows local PANEL control of the Circuit Breaker (CB). The breaker control page displays the control availability matrix which shows in a very effective format from which sources the CB can be Closed and Opened. Panel refers to any command issued via the face plate buttons. Serial refers to any command issued via any of the serial ports. Remote refers to any command issued via the digital inputs. The Local / Remote status of the CB is also shown. L R Status Panel Serial Remote OPERATE Breaker Control Close Yes No No CLOSE LOCAL Open Yes No No OPEN As well as the Close and Trip pushbuttons on the front fascia the CB can be controlled via the local PANEL buttons. The permissive and inhibit sources displayed here for the circuit breaker are dictated by the Remote Pushbutton on the front fascia. Those settings transpose directly into this page producing the YES and NO indications for each source. Page 22 of 66

23 7.5 SETTINGS MENU. DATA MENU BREAKER CONTROL FEEDER TAG I1:0A I2:0A I3:0A DISPLAY SCROLL SETTINGS MENU The Settings menu is divided into three main sub menus allowing complete manipulation of the set points associated with the protection and relay set-up. These are; CONTROL SETTINGS, PROTECT SETTINGS and SYSTEM SETTINGS. Each of these headings provide sub menu access for the parameter configuration and control set-up. As the four software driven buttons change function depending upon what page (or equally what type) of data is being changed, this section also details the use of; pop-up boxes, changing values and timers, handling tick box applications and multiple choice settings Control Settings. CONTROL SETTINGS PROTECT SETTINGS The CONTROL SETTINGS sub menu of the Settings Menu allows manipulation of the necessary functions required to set-up the Circuit Breaker. The Digital Inputs, Relay Outputs and the Breaker Settings functions are all configured under this menu header. SYSTEM SETTINGS Breaker Settings. BREAKER SETTINGS DIGITAL INPUTS RELAY OUTPU TS UP Panel Close Delay Panel Open Delay O/C Pickup Level E/F Pickup Lev el Cold Load Pickup Disabled SELECT Breaker Settings 0s 0s 400% 20% The Breaker Settings are used to configure the general protection characteristics. A summary of settings is shown in section 10. NOTE:- To modify the sequence settings the Reclose Enabled function on the relay needs to be enabled. DOWN Digital Inputs. BREAKER SETTINGS DIGITAL INPUTS RELAY OUTPU TS UP Input 1 Input 2 Input 3 Input 4 Input 5 DOWN Digital Inputs SELECT ACB Status Close Open Not Used Not Used In this screen the 12 digital inputs can be assigned to a function. When an input is selected using the SELECT button an option change pop-up overlays the main screen, the menu buttons will now operate the over-layed pop up menu. As in the DATA MENU the left hand box operates similarly. NOTE:- Inputs 1-3 cannot be changed. Page 23 of 66

24 UP SELECT Auto / Man Loc Digital / Rem Inputs Input 1Cont. A Stop Cont. B Input 2 Start A Test Input 3Authorise Test Input 4EXTERNAL Cont 1A Input 5 Not Used If a digital input is already assigned to an input no. then it cannot be set to another input no. it will still appear in the list and will be lined-out. The digital input functions are described in more detail in section 9. This pop-up format also applies to Relay Outputs selection or where a list of selectable options is available. On exit from this screen Input 5 will be set to EXTERNAL 1. DOWN Relay Outputs. STAR TER SETTINGS DIGITAL INPUTS RELAY OUTPU TS UP SELECT Relay Outputs Relay Output 1 Close Relay Output 2 Trip Relay Output 3 Not Used In this menu the eight output relays can be assigned. A pop-up box overlays the main screen and output relay functions can be chosen, unlike the digital inputs many output relays can be assigned to carry out the same function. NOTE:- Relay Outputs 1 & 2 cannot be changed DOWN The relay outputs can be assigned to any of the following list:- Not Used Warn 1 Warn 2 Alarm Indicator 1 Indicator 2 Indicator 3 Indicator 4 Indicator 5 Alarm FS Indicator 1 FS Indicator 2 FS Indicator 3 FS Indicator 4 FS Trip & Lockout Follow A Follow B Seq. Lockout Gas Alarm FS Protection E/F Prot. Enabled Enabled Aux. 2 Enabled Aux. 3 Enabled Supply Missing FS FS Fail Safe Contact The output relay function is explained in detail, see section 8. Liveline Enabled Internal Error FS Reclose Enabled Aux. 1 Enabled Page 24 of 66

25 7.5.2 Protection Settings. CONTROL SETTINGS PROTECT SETTINGS SYSTEM SETTINGS UP Protection Settings A Cold Load Pickup T CLPU HS T E/F CLPU OFF E/F CLPU HS T Ov ercurrent 1 OFF Overcurrent 1 HS SELECT On selecting, this page displays all protective function available. Each function can be selected using the UP and DOWN keys, each function can then be configured. At a glance the left-hand coloumn shows whether a function is active or not and what configuration or action it is set to. DOWN A T OFF indicates that the function has been enabled. indicates the ALARM is enabled for that function. indicates the TRIP is enabled for that function. means that the function is disabled and not used Protective Functions. UP DOWN Ov ercurrent 1 SELECT Function On T Reset Auto Indicator Charcteristic Def inite Time Trip Time 0.05s In this example the configuration for the behaviour of Definite Time protection can be controlled. There are four setting groups: Function: Reset: Set ON / OFF, Set ALARM, Set TRIP. Auto / Panel / Serial or Remote or combination. NOTE:- When the unit is set to Reclose all resets are automatically set as Auto. Indicator: Relay output indicators 1, 2, 3 or 4 or combination. Characteristic: The User can select between Definite Time, Normal Inverse, Very Inverse and Extremely Inverse curves. Depending on the selected characteristic the settable options may change. For further details see section 18 Trip Time: The settable trip time. Each option moves a pop-up box forward to select the desired operation. Function Reset Indicator Characteristic Trip Time Function : Warn 1 : Warn 2 : Alarm : Trip : Inhibit : Act in test: Blockable : Auto Reset : Panel Reset : Serial Reset : Remote Reset : Indicator 1 : Indicator 2 : Indicator 3 : Indicator 4 : Def inite Time Normal Inv erse Very Inv erse Extremely Inv erse Trip Time s Each protective function has specific settings associated with it. The settable options for each protective function are explained in further detail in section 18. Page 25 of 66

26 7.5.3 System Settings. CONTROL SETTINGS PROTECT SETTINGS SYSTEM SETTINGS The System Settings menu provide access to a further sub set of menus: Feeder settings, Serial Settings, Unit Settings and Smart Card settings Feeder Settings. FEEDER SETTINGS SERIAL SETTINGS UNIT & SMT CARD UP SELECT Feeder Settings Ov ercurrent Poles 3 Poles CT Primary 500A VT Primary 19920V VT Secondary 120V Voltage 9960V This screen allows the user to change the feeder settings of the relay. The list of values to be changed can be scrolled through by pressing the UP and DOWN buttons (top-left and bottom left). A value can be selected to have its value changed by pressing the SELECT button (top-right) when the value is highlighted. This then brings up the VALUE CHANGE SCREEN DOWN UP DISCARD Feeder Settings Ov ercurrent Poles 3 Poles CT VT Primary Secondary 500A VT Primary V 2 0 VT Secondary 120V Voltage 9960V DOWN NEXT The Value Change pop-up allows you to alter settings in specified steps within the minimum and maximum values of the particular setting range. The pop-up over lays the main screen, the menu buttons operate the pop-up as normal. The Exit button becomes a Next function in this window to skip along to the next character. If an undesired value is inserted incorrectly use the Next button to skip past the last character to the left the Select option button now operates as a Discard to dump the new value without saving reverting back to the original value on initial selection. The values to be changed are as follows: CT Primary, VT Primary, VT Secondary, Voltage, CCR, EFCT Primary 1, kw Sample Period, The Feeder Settings are explained detail in section Serial Settings. FEEDER SETTINGS SERIAL SETTINGS UNIT & SMT CARD UP Serial Settings Serial Driv e Number RS485 Baud Rate RS232 Baud Rate Serial Delay Fastscan = SELECT Enabled ms 4 Words This screen allows the user to change the communication port aspects of the relay. Section 12 describes in detail the function of each of the available serial settings. DOWN Page 26 of 66

27 Unit Settings. FEEDER SETTINGS SERIAL SETTINGS UNIT & SMT CARD SMART CARD UNIT SETTINGS UP SELECT Unit Settings Ver Unit ID 9999 Password Disabled Engineer Password Disabled Change Password This screen allows the user to change certain global characteristics of the relay. Each setting is explained in detail in section 16. DOWN Smart Card Settings. SMART CARD UNIT SETTINGS UP Smart Card Settings Card Setting Card Card Not Inserted Card Data Different Write 00 : 00 : / 00 / 00 Transf er Data DOWN SELECT The Smart Card is a removable eeprom memory card which can be supplied with VISIONr on request. The Smart Card can be used for parameter storage and for cloning other relays or it can be formatted as an extended data card which will log and store events. The Smart Card is explained in detail in section 17. Page 27 of 66

28 8 CONTROL OUTPUTS 8.1 OUTPUT RELAYS. The relay has 8 output relays 6 of which can be assigned to any of the following list except for:- Relay RLY1 is always configured as Close output Relay RLY2 is always configured as Trip output Not Used Warn 1 Warn 2 Alarm Indicator 1 Indicator 2 Indicator 3 Indicator 4 Indicator 5 Alarm FS Indicator 1 FS Indicator 2 FS Indicator 3 FS Indicator 4 FS Trip & Lockout Follow A Follow B Seq. Lockout Gas Alarm FS Protection E/F Prot. Enabled Enabled Aux. 2 Enabled Aux. 3 Enabled Supply Missing FS FS Fail Safe Contact Liveline Enabled Internal Error FS Reclose Enabled Aux. 1 Enabled 8.2 RELAY FUNCTIONS Close. Once receiving a command to close the circuit breaker the output relay closes, thus sending a close signal to the circuit breaker. This signal remains closed until the relay is informed that the breaker has changed state. The relay determines the status of the breaker via the digital input that is assigned to "ACB Feedback". Once the status of this digital input has changed the output relay opens. In the case where no change of breaker status is detected, the output relay remains closed until the time specified in the Breaker Fail Protection Function has elapsed Trip. This output is used to trip the circuit breaker and follows the same pattern as above. i.e. when a trip command is received the output relay closes and remains closed until the breaker is seen to open via the "ACB Feedback" input or the time specified in the Breaker Fail Protection Function has elapsed Not Used. This option switches off the use of that particular output relay Warn 1. If an output relay is assigned as Warn 1 then this relay will change state from de-energised to energised when triggered by any protection function or external device connected to the relay that is configured with Warn 1 enabled. The relay will only be energised while the protection function or external device registers that a pickup setting or fault status has been violated. When the pickup setting is no longer violated the output relay assigned as Warn 1 will be de-energised. Warn 1 output relay will be energised as soon as a protection features pickup has been exceeded despite any delays that may have been assigned. Page 28 of 66

29 8.2.5 Warn 2. If an output relay is assigned as Warn 2 then this relay will change state from de-energised to energised when triggered by any protection function or external device connected to the relay that is configured with Warn 2 enabled. The relay will only be energised while the protection function or external device registers that a pickup setting or fault status has been violated. When the pickup setting is no longer violated the output relay assigned as Warn 2 will be de-energised. Warn 2 output relay will be energised as soon as a protection features pickup has been exceeded despite any delays that may have been assigned Alarm. If an output relay is assigned as Alarm then this relay will change state from de-energised to energised when triggered by any protection function or external device connected to the relay that is configured to alarm. The alarm operates after the expiry of the programmed time delay assigned to the protection feature Indicator 1-4. If an output relay is assigned as any of the 4 available Indicators then this relay will change state from deenergised to energised when triggered by any protection function or external device connected to the relay that is configured to indicate on that same indicator channel. Once activated the output relay will be latched and requires a reset before returning to its normal state. Unlike Warn 1 and Warn 2 which are activated as soon as a protection feature pickup is exceeded, Indicators will only be activated after the expiry of the time delay assigned to the protection feature Alarm Fail-Safe. If an output relay is assigned as Alarm FS then this relay will change state from energised to de-energised when triggered by any protection function or external device connected to the relay that is configured to alarm. The alarm operates after the expiry of the programmed time delay assigned to the protection feature Indicator 1-4 Fail-Safe. If an output relay is assigned as any of the 4 available fail safe indicators then this relay will change state from energised to the de-energised relay contact when triggered by any protection function or external device connected to the relay that is configured to indicate on that same indicator channel. Once activated the output relay will be latched and requires a reset before returning to its normal state. Unlike Warn 1 and Warn 2 which are activated as soon as a protection feature pickup is exceeded, Indicators will only be activated after the expiry of the time delay assigned to the protection feature Serial Available. If an output relay is assigned as Serial Available this relay will be energised only when the breaker is available to be closed through the serial port, via a serial command. Page 29 of 66

30 Panel Available. If an output relay is assigned as Panel Available this relay will be energised only when the breaker is available to be closed from the front panel of the relay Remote Available. If an output relay is assigned as Remote Available this relay will be energised only when the breaker is available to be closed from a remote station via a digital input Trip and Lockout. If an output relay is assigned as Trip & Lockout then this relay will change state from the de-energised to the energised relay contact when triggered by any protection function or external device connected to the relay that is configured to trip the circuit breaker. Once Tripped the relay will not permit any further control of the circuit breaker until the fault has been acknowledged by means of a reset. Trip and Lockout will provide a permanent open signal to the circuit breaker thus preventing manual closure of the circuit breaker onto a possible fault condition. The Trip and Lockout relay is a maintained relay action Follow A. If an output relay is programmed as Follow A its state will mirror the state of output relay 1. Output relay 1 is always set to CLOSE and is a pulse contact Follow B. If an output relay is programmed as Follow B its state will mirror the state of output relay 2. Output relay 2 is always set to TRIP and is a pulse contact Gas Pressure Alarm. If an output relay is programmed as Gas Pressure Alarm then this relay will change state from the energised to the de-energised state if the gas pressure falls below a pre-set alarm level Sequence Lockout. If an output relay is assigned as Sequence Lockout then this relay will change state from the de-energised to the energised relay contact when triggered by any protection function that terminates the re-closing sequence or the relay completes its programmed reclose sequence without reclaiming. Once Locked Out the relay will not de-energise until the relay is re-closed Protection Enabled. If an output relay is programmed as Protection Enabled then this relay will energise when the relays Protection Function is ENABLED and de-energise when the Protection Function is DISABLED. Page 30 of 66

31 E/F Protection Enabled. If an output relay is programmed as E/F Protection Enabled then this relay will energise when the relays E/F Protection Function is ENABLED and de-energise when the E/F Protection Function is DISABLED Live Line Enabled. If an output relay is programmed as Live Line Enabled then this relay will energise when the relays Live Line Function is ENABLED and de-energise when the Live Line Function is DISABLED Reclose Enabled. If an output relay is programmed as Reclose Enabled then this relay will energise when the relays is set to Auto Reclose de-energise when the relay is set to Single Shot Aux 1-3 Enabled. If an output relay is programmed as Aux 1-3 Enabled then this relay will energise when that Auxiliary Function (if programmed) is ENABLED and de-energise when that Auxiliary Function is DISABLED Supply Missing FS. If an output relay is programmed as Supply Missing FS then this relay will change state from the energised to the de-energised state if the relay supply is lost Internal Error FS. If an output relay is programmed as Internal Error FS then this relay will change state from the energised to the de-energised state if the relay develops an internal fault. Page 31 of 66

32 9 CONTROL INPUTS. 12 digital inputs are provided. The supply voltage range for these inputs is the same as the supply voltage range for the relay. The condition of all these inputs can be viewed at any time via the Digital Inputs page of the Data Menu. Input 1 is always assigned as ACB Feedback and allows the relay to monitor the position of the circuit breaker. The status of the switchgear is determined and shown via the front plate LED's and LCD display. An auxiliary contact on the Circuit Breaker provides the signal for this digital input. Input 2 is always assigned as Close and will close the circuit breaker provided that the close setup source within the software has been configured to allow remote closing of the breaker. For a close to occur there must be no inhibit conditions existing. Any fault condition must be cleared. Note: A circuit breaker may only be closed provided all conditions that inhibit such an action are healthy including password security. Input 3 is always assigned as Open and will open the circuit breaker provided that the open setup source within the software has been configured to allow remote opening of the breaker. Only a momentary digital input signal is required for the Close and Open commands. The other 9 inputs are available to be programmed as any of the following: - Reset Fault Auto / Manual Local / Remote Test / Service Authorise Blocking Input. External Fault 1-5 Protection E/F Protection Live Line Reclose Aux PROGRAMMABLE INPUTS Reset Fault. This input enables the operator to reset Fault or Alarm conditions. Normally this input can only perform a reset if the following conditions are met: 1. The Protection Settings for the specific fault or alarm are set to allow remote resets. 2. The condition that caused the Fault or Alarm to occur no longer exists. However if the Authorise input is set (see later) then the Reset Fault input will work irrespective of condition Auto/Manual and Local/Remote Inputs. These inputs are used to determine which of the Close and Open sources (front panel, serial, remote) are enabled. Page 32 of 66

33 9.1.3 Test / Service. This input allows the protection relay to enter Test Mode. In this mode selected protection functions can be disabled to permit easier testing Authorise. When this input is open it prevents unauthorised access to change settings. Any attempt to adjust settings will result in a request for a password Blocking Input. This input can block any protection function that has blocking enabled External Fault These inputs can be used to trigger Trip or Alarm conditions. These inputs can work with either normally close or normally open contacts Protection. This input is used to Enable or Disable the VISIONr Protection function when the unit is in REMOTE control E/F Protection. This input is used to Enable or Disable the VISIONr Earth Fault Protection function when the unit is in REMOTE control Live Line. This input is used to Enable or Disable the VISIONr Live Line Protection function when the unit is in REMOTE control Reclose. This input is used to switch the VISIONr into Single Shot Protection or Auto Reclose Protection when the unit is in REMOTE control Aux 1-3. These inputs Enable or Disable the VISIONr Aux1-3 function (if programmed) when the unit is in REMOTE control. Page 33 of 66

34 10 BREAKER SETTINGS Panel Close Delay This allows the user to program a delay between a panel close command and the unit closing. This delay is settable between 0-60s. This setting is to allow the operator to gain safe distance before the VISIONr closes the breaker Panel Open Delay This allows the user to program a delay between a panel open command and the unit open. This delay is settable between 0-60s. This setting is to allow the operator to gain safe distance before the VISIONr opens the breaker Overcurrent Pickup Level This allows the user to program the overcurrent pickup level for the sequence and single shot overcurrent trips Earthfault Pickup Level This allows the user to program the Earthfault pickup level for the sequence and single shot Earthfault trips. THE FOLLOWING 3 SETTINGS ( ) ARE ONLY AVAILABLE IF THE RELAY IS FITTED WITH DIRECTIONAL EARTH FAULT SOFTWARE Ve Pickup Level This setting allows the configuration of the residual voltage pickup level. Ve is internally calculated from the residual sum of the connected three phase voltages Ie Direction This setting dictates the direction of earth fault the relay will call a trip. This setting provides the datum point for the Ie Sector setting Ie Sector The Ie Sector is the operational zone in which Earth Fault protection settings are inhibited. The sector is effectively split evenly each side of the Ie Direction setting. For a more detailed explanation of the directional earth operation see Appendix 5. Page 34 of 66

35 Cold Load Pickup This allows the user to enable or disable the cold load pickup function. The cold load pickup (CLPU) feature is a 1 SHOT sequence intended for those applications where the start up currents of a system, which occur when the breaker is closed, might cause the normal protection sequence (whether it is RECLOSE or 1 SHOT) to trip Sequence Reset Time This feature will cause the unit to only perform the last trip in the sequence if the enclose enabled function is set or the last single shot trip if the unit is closed after lockout and the set sequence rest time (1-180s) has not elapsed. THE FOLLOWING SETTINGS ARE ONLY AVAILABLE IF THE RECLOSE ENABLE FUNCTION IS ACTIVE Sequence Co-ordination This allows the user to enable or disable the Sequence Co-ordination function. The sequence co-ordination feature is intended for applications where two or more breakers are connected inseries. It is used to automatically advance the sequence of an upstream breaker when it sees fault current interrupted by a down stream breaker Auto Reclose Phase This allows the user to set the number of overcurrent trips from 1 to 4 in the trip sequence. The setting of these trips can be configured in protection settings. Note: To set all via overcurrent trips via the screen this value must be set to 4 else only the number selected can be configured Auto Reclose Earth This allows the user to set the number of Earth Fault trips from 1 to 4 in the trip sequence. The setting of these trips can be configured in protection settings. Note: To set all via Earth Fault trips via the screen this value must be set to 4 else only the number selected can be configured Dead Times 1-3 This allows the user to set the dead time interval (0.25s-180s) between the trips in the sequence Reclaim Time This allows the user to set the time between a fault clearing before the unit has completed a sequence and the relay resetting. Page 35 of 66

36 11 FEEDER SETTINGS Overcurrent Poles This specifies that the unit is set for 3 x phase current inputs CT Primary This setting allows the user to program the primary current rating of the protection class current transformers on the supply phases. It is assumed that all phase current transformers are of the same rating VT Primary This setting allows the user to program the primary voltage rating of the three phase voltage transformers (if used). If a VT is not used enter the rated voltage for the direct connection. This is limited to 415V. Note: Each of the 3 phase Voltage Inputs should be connected between a phase and neutral only. The Voltage Reference Input (check synch) may be connected between two phases or a phase and neutral VT Secondary This setting allows the user to program the secondary voltage rating of the external voltage transformers (if used) Voltage This should be set to the line voltage of the supply and is necessary for power calculations. The setting is also used for the Under/Overvoltage. As an example if the voltage input was connected between two phases on a 415V system this setting would be 415V. If however the voltage input was connected between a phase and neutral then this setting should be 240V Constant Current Rating (CCR) This setting allows the user to program the Constant Current Rating of the feeder or transformer supplying the load as a percentage of the CT Primary rating. Since this setting is a percentage of the CT primary, any change in the CT Primary setting will alter the CCR setting. As a result it is recommended that the CT Primary be set first. Page 36 of 66

37 EFCT Primary 1 This setting allows the user to program the primary current rating of the protection class current transformer used to measure the primary earth fault current. NOTE:- This should be set to the same value as the phase CT Primary for residually connected earth fault measurement kw Sample Period This setting range 1 to 60 min in steps of 1min determines the period over which a measurement is taken to integrate the Kilowatt Hours value. Page 37 of 66

38 12 SERIAL SETTINGS RS485 A 3 pin RS485 connector on the rear of the relay permits the control of the relay via a number of protocols. VISIONr is compatible with DNP3, Modbus RTU and Modbus ASCII based systems. A Profibus version of VISIONr is available but the physical interface changes to a 9-way D-type connector RS232 The 9-way D-type RS232 connector on the front of the rely permits programming of settings and retrieval of historical data using the supplied Windows software SERIAL SETTINGS Serial Enabled / Disabled. This setting allows the user to enable the VISIONr serial communications port. This setting must be set to Enable if communication with the relay through the serial link is required. Drive Number. This setting range 1 to 32 0r with Profibus, with a default setting of 1, identifies the VISIONr unit to the Xcell unit (or any Master device connected to the Data highway) to which the RS485 or Profibus port is connected. When updating firmware the auto program mode requires the drive number to be 1. RS485 Baud Rate. This setting allows the user to configure the appropriate communications baud rate such that the VISIONr can communicate effectively on the Data Highway to which it is connected. RS232 Baud Rate. This setting allows the user to configure the baud rate for the front mounted RS232 port. Serial Delay. The VISIONr may be configured to respond to a request for information from the serial port instantly or after a designated delay. A communications delay may be beneficial to ensure the Master device on the Data Highway receives all information sent back by the VISIONr without enduring data collisions on the network. Fast Scan Words. A Fast Scan is a system used when operating in conjunction with the XCell Data Concentrator. As the XCell polls relays attached on its network, the fastscan settings allows the user to select important data to be read back faster. The data on the communications link is broken into Fast Scan Data (or Process Critical Data) and Slow Scan or Full Read Data (Electrical Engineering Data). The amount of Fast Scan Data to be sent back to the XCell in response to a request is configurable. This setting has the range 4, 6 or 8 Words. A setting of 4 Words will give 3 Fast Scans. The remaining Word is taken up by the Total Power. A setting of 6 Words will give 5 configurable Fast Scans and a setting of 8 Words will allow 7 configurable Fast Scans. Page 38 of 66

39 The configuration of Fast Scan is not necessary unless the VISIONr in used in conjunction with the XCell unit. Fast Scan 1 to 3 (1 to 5 or 1 to 7). Each Fastscan number can be programmed to export important data when requested. This number references an internal address in FV2 and allows configurable data mapping between units. Typical data could be 3-Phase Current, 3-Phase Voltage and so on. A table of the Fastscan reference numbers can be found in appendix 1 Max Scan Time. This setting need only be used in order to limit the amount of data traffic on a RS485 network. Dynamic data can change rapidly, this setting allows the VISIONr to limit the number of updates it makes to its Fast Scan values. RS485 Port Protocol. The RS485 serial communications port may be configured to operate using a slave implementation of Modbus RTU, Modbus ASCII, DNP3 or P&B Engineering s own protocol P&B Standard designed to remove some of the speed issues associated with a function based protocol like Modbus. RS232 Port Protocol. The RS232 serial communications can be selected to be either P&B Standard or Modbus RTU. Parity. This setting allows the user to set the parity to match that of the host system on the serial link. The options are Odd, Even and None. Comms Power Scale. This setting allows the user to configure the way the relay transmits the measurement data via the serial port. If set too fixed the relay transmits this information without any scaling i.e. power is transmitted as KW. If set to Auto the data will be transmitted with a scaling factor as part of the transmission allowing the measurement to be displayed as a scaled value i.e. power will be transmitted as MW. The options are Auto and Fixed. THE FOLLOWING SETTINGS ARE AVAILABE WHEN MODBUS ASCII IS SELECTED In ASCII mode the relay can on certain occasions transmit data (Report By Exception) without being requested by the host system. The settings below are required to allow the relay to operate in this mode. Gap in Message. This is an additional delay period between the transmission of multiple byte data from the relay. The delay can be set from 10ms to 1s in 10ms steps. RBE Timeout In. This is the time allowed for a response from the host system to the VISION r after a RBE message has be sent before registering a timeout. This adjustable from 1 to 120 seconds n 1 second steps. Page 39 of 66

40 13 DISTURBANCE RECORDING. Disturbance and fault recording is a very effective tool for personnel to analyse the performance of the power system and related equipment during and after a major disturbance. Utilising the graphical display to full effect an onscreen Disturbance Recording facility is available. The relay captures the 8 most recent oscillographic records. These can be weighted pre and post fault on selectable triggering events. All the currents and voltages are captured on a single recording (viewable separately) along with a specified digital output and digital input. The disturbance traces can also be extracted via the optional front mounted RS232 port in Comtrade format for high resolution analysis. The disturbance recording feature is accessed using the DATA MENU / MEASURED VALUES / DISTURB VALUES buttons. This brings up the screen below. UP SELECT Disturbance Trace Clear Traces Trigger Trigger Position Maximum Traces Digital Input Digital Output Resolution On Trip 0 / 100% Half DOWN The following options are then available: - View trace Displays the oscillographic record appropriate to the Trace Time. A screen similar to that shown below is presented. DO DI SCROLL LEFT SCROLL RIGHT MORE KEYS In this screen the SCROLL LEFT / SCROLL RIGHT buttons move about the trace. The MORE KEYS button changes the function of the SCROLL LEFT and SCROLL RIGHT buttons to ZOOM IN and ZOOM OUT. Trace Time Displays the time and date of the presently selected trace. SELECT this option to see a list of the times and dates for the available oscillographic records. If desired, one of the alternative traces can then be selected. Page 40 of 66

41 Trace Input Shows which analogue value will be displayed when the View Trace option is selected. SELECT this option to see a list of the available analogue values. If desired, one of the alternative values can then be selected. Enable Overwrite Once the maximum traces have been recorded trace full will be displayed on screen. If Overwrite is enabled then a new recording will overwrite the oldest recording. Clear Traces This clears and permanently deletes all oscillographic records from the buffer memory. Trigger Shows the trigger condition for oscillographic recording. SELECT this option to see a list of the available triggering options. If desired, one of the alternative options can then be selected. Trigger Position Shows the trigger position as pre and post fault percentages. SELECT this option to see a list of the available options. If desired, one of the alternative options can then be selected. Resolution The resolution can be set to half (allowing the full 9 seconds) or full, which allows a maximum of 4.5 seconds recording. Maximum Traces Up to eight traces can be recorded. If set to the maximum with full resolution, then each trace length can only be a maximum of 1.1seconds each. Digital Input No. Selects which of the 1-12 digital inputs is to be recorded along with the trace. Digital Output No. Selects which of the 1-8 output relays is to be recorded along with the trace. Page 41 of 66

42 14 TRIP HISTORY. This option provides detailed information about the 32 most recent protection sequences. This option is accessed via the Data Menu / Fault Data / Fault History buttons. This brings up a screen similar to that shown below: - UP VIEW FAULT SEQUENCE Overcurrent 1 Sec:10ms 0:0 Dead time 1 Overcurrent 2 Sec:10ms Dead time 2 Overcurrent 3 Sec:10ms DOWN The four most recent protection sequences are listed with their time and dates. The Up and Down buttons can be used to step through the list of sequences. Pressing the View button shows more detail about the highlighted sequence. The exact display content depends upon the sequence detail but an example is given below: - UP VIEW Overcurrent 1 I A I2 0.0A I3 0.0A I A V1 V2 0.0V 0.0V V3 0.0V DOWN This screen typically lists the trip type, trip time and dead time for each trip in the sequence. It may be necessary to use the Up and Down keys to view all of the data. As these keys are used the following / preceding trip will be highlighted. Pressing the VIEW button will show more detail about a particular trip. A typical screen is shown below: - Page 42 of 66

43 15 SEQUENTIAL EVENT RECORDER (SER). TRIP HISTORY UP RESET SER Triggering. ALARM HISTORY SER SUMMARY SER Summary UnderFrequency *D 18 : 03 : 28 : / 11 / 05 UnderFrequency *R 18 : 03 : 28 : / 11 / 05 UnderFrequency *A 18 : 03 : 28 : / 11 / 05 UnderFrequency *P 18 : 03 : 27 : / 11 / 05 The VISIONr relay triggers (or generates) a entry in the SER log for a change in state of any of the 121 binary inputs listed in the SER Event Trigger Source list. The factory default is that all inputs are active. DOWN SER Monitoring. The relay monitors each of the 121 binary inputs. If the input changes state, the relay time and date stamps the change in the SER. If a protection element exceeds its pickup level, initiates a trip, resets or de-asserts the element, the relay time and date stamps each change in the SER. SER Log. The relay logs the last 100 events but the user only has access to the 32 most recent events via the screen by using the Up and Down scroll keys to scroll the events. The most recent event is located at the Top of the screen and after the 33 rd event the oldest record is not displayed. The user has got access to the last 100 events via DNP3. After the 101 st event the oldest record is erased. SER Logging of Information The above screen shows an example of a Protection SER event. The sequence starts when the relay detects the Frequency has fallen below its set limit and the element has picked up (*P). The next line in the sequence is when the element trip time for that setting has elapsed and the unit has asserted a trip (*A). Almost at the same time as the trip the relay see that the under-frequency has cleared as the breaker has tripped so resets (*R) then finally the elements de-asserts (*D). As the above screen show the pickup (*P) and reset (*R) are a pair and are used in the logging of Protection events. If the relay then trips due to this pick then the elements asserts (*A) and then finally de-asserts (*D) again are a pair. In logging of keypad changes, digital input or output changes then the later pair are used giving an asserted (*A) when the change is activate and de-asserted (*D) when de-active. Another example of an SER Sequence Event can be seen in Appendix 2. SER Binary Events. A full listing of the events can be seen in Appendix 3. These can be selected or deselected via the VISION Control II windows software. Page 43 of 66

44 16 UNIT SETTINGS. Software Version. Displays the operating software (firmware) loaded on to the unit. This should be noted along with the serial number when corresponding about this equipment Unit ID. / Unit Type. Displays the Serial number and device type. Password. If the password is set to enabled the default password (6363) may be used to change setting and reset statistical data. If the password has been changed the new password must be used. If a digital input is set to Authorise, by energising this digital input you can change settings without being prompted for a password. Engineering Password If enabled the Engineer Password will allow access using the standard password. Generally if a password is requested a prompt will offer AAAAA, changing the second A to a B ABAAA allows access. The settings may only be modified when the correct password has been entered. Change Password. The VISIONr default password is '6363'. It is recommended for security purposes this password be changed. The password may be up to 6 characters long and alphanumeric if desired. If the User Password is lost and the Engineers Password has been disabled the only options are to either Read the information via the serial Link or execute a Configuration Reset on the relay to restore all of the factory defaults. Edit Custom Strings. The VISIONr provides the user with the ability to assign a unique user definable name to External 1 to 5 functions, the Additional RTD inputs (where fitted) and assign a Feeder Tag which appears across each page in the display scroll. Each name can be up to 11 characters. LCD Backlight and LCD Contrast. These functions allow the user to change the display contrast and backlight. Time and Date. These functions allow the user to set the date and the time on the relay. Page 44 of 66

45 Calibration. Each unit is calibrated prior to despatch and a signed test report is issued. The user may however access these settings if required and re-calibrate the device if deemed necessary. In addition to the calibration of analogue inputs the Calibration Sub Menu provides some useful diagnostic tools. After entering the password the Calibration Sub Menu will be displayed and allows access to the following settings: Gain and Offsets for each analogue channel. Auto Zero Temp Auto I Cal Feeder Type Auto Io Cal FKI Soak Setup Auto V Cal Digin Diagnostics Reset Cal Factors O/P Relay Tests Run Offset Cal Noise Check System Frequency (This must be set to the frequency of the network 50 or 60Hz) It is very likely that altering any calibration value will directly affect the performance of the relay and may compromise its ability to adequately function and protect. Reset Trip/SER Events. This function will cause the resetting of the contents of the units Trip History and SER event recorder after entering the engineering password. Set Default Page / Default Return Time. Any of the display scroll data pages can be nominated as the default page and returned to after a set period of key press inactivity. To set the page; select the required page using the display scroll button, then enter the unit setting and select set default page. Screen Saver To help extend the life of the LCD we can power the display down if the application suits. The screen will power down after the set time from the last key press. The VISIONr will still operate and can be remotely controlled via digital inputs or the serial interface. On any key press or active fault the display will reactivate. Screen Saver Time This function allows the user to set the time delay ( s in 1S increments) from when the last key was pressed to when the Screen Saver activates. Hours in Service The hours in service is a counter which increments whilst the unit is in service or energised, this is used to help determine MTBF figures. O/C Protection Input After entering the engineering password the user has the choice of making the Protection Enabled permanently active (Locked) independent of the CB position, Protection Enable Key or Remote Control. With this function in the Unlocked mode Protection Enabled operates as normal. Page 45 of 66

46 Alarm and Indicator This function allows the user to select the means of resetting any active alarms or indicators. The three options are as follows:- Auto Reset- Timed Reset- When the source of the alarm/indicator has cleared the relay contact will automatically reset. The alarm/indicator relay contact will reset after the source of the alarm/indicator has cleared and the pre-selected reset time has elapsed (See Alm & Indc Reset Time). Manual Reset- The alarm/indicator relay contact will require a manual reset by the keys on the unit in the Active Fault screen to reset the relay contact. Alm & Indc Reset Time This function allows the user to set the reset time of any alarm/indicator relay contact when the Alarm and Indicator function above is set to Timed Reset. The relay contact will reset after the source of the alarm has cleared and the pre-selected reset time (0-360s in 1s increments) has elapsed. Page 46 of 66

47 SMART CARD SETTINGS. The Smart Card was developed to provide secure parameter storage and ease of data retrieval. The smart card gives users the ability to transfer drive data between similar devices using the inbuilt card reader/writer, it can be formatted and controlled via the relays LCD interface or with a PC and dedicated smartcard reader. Smart Cards are available in two forms, both can be password protected and once formatted for a particular device type they cannot be used in another device type (VISIONr for example) without re-formatting. The two forms are: Settings Card Password protected up to 6 characters (default AAAAA) All parameter settings for a single relay can be saved on one card Fast transfer time, typically 5 seconds One card can be used to clone multiple relays with the same settings Data transfer can be controlled without the need of external equipment Data Card Password protected up to 6 characters (default AAAAA) Selectable events to record 64K of memory available for data logging ( events) Time and date stamping of events to 1ms Stored in text file format Settings Card: UP SELECT Smart Card Settings Card No Card Card Not Inserted Card Data Different Write 00:00:00 00/00/00 Transf er Data Card Unlocked Lock Card Auto Lock Yes Format Smart Card Smart Card Pop-Up menus Dont Transf er Data Card > VISIONr VISIONr > Card Unlock Card Lock Card No Yes Dont Format Card Format f or Data Format f or Setting DOWN Password AAAAAA The Card detail is displayed on the first two lines, the card data indicates whether the parameter settings both on the card and those programmed into the relay concur with each other. Any single setting change causes Compare Fail to be displayed across the screen. The time and date of the last setting transfer are recorded for that particular card. The card can be locked against overwriting by means of the password or if set to auto lock the card will be automatically password protected on removal. The password required to unlock and transfer the parameter settings is the password which was set on initial formatting. Parameters are transferred by selecting Transfer Data. Page 47 of 66

48 Data Card: UP SELECT Smart Card Settings Card No Card Card Not Inserted Card Data Different Card Options Format Smart Card Data Card Pop-Up Menus Trip : Dig Input : Dig Output : Control : Power Down : Dont Format Card Format f or Data Format f or Setting DOWN Password AAAAAA As with the Settings card the card detail is displayed on the first two lines in the menu. The card options allow the user to set which of the conditions the data card is required to store, single or multiple events can be set. The format of data storage is as follows; Trip Data: Trip Event, Time & Date, All currents and Voltages, all other relevant measured data Digital Input or Output: Digital I/O Event, Time & Date, Digital I/O number, Digital I/O name, Final State (Open or Closed) Control Data: Control Event (start / close, stop / open or reset), Time & Date, Origin (serial / panel / remote / auto / trip) Power Down: Time& Date NOTES:- 1) Data will only be stored to the card whilst the card is inserted into the relay 2) SER Events are only available for download via serial communication. We recommend that the device is isolated from the network during any smart card use. Page 48 of 66

49 17 PROTECTION SETTINGS. Each protection function is configurable independently of the others. The available action, the type of reset, the various threshold levels and trip timers for each and every protection function can be found in section 5 This section describes in detail what each function does and how it operates. Function. UP SELECT If a particular protective function is required for use it should be selected and set to Function: Enabled. That function now operates as per its configuration. On exit the protective list will show to the left hand side of the name a tick if the function is enabled, and A or T, or both if set, to operate an Alarm or a Trip. If a particular function is not required it can be left disabled and it will display OFF next to the function. Protection Settings A Cold Load Pickup T CLPU HS T E/F CLPU OFF E/F CLPU HS T Ov ercurrent 1 OFF Overcurrent 1 HS DOWN Warn 1. When set to Enabled this setting activates the Output Relay that is programmed to Warn 1 indicating that a trip is imminent after the trip time has been exceeded. It is activated when the Trip Level has been exceeded. Warn 2. When set to Enabled this setting activates the Output Relay that is programmed to Warn 2 indicating that a trip is imminent after the trip time has been exceeded. It is activated when the Trip Level has been exceeded Alarm. An Alarm is considered as a high level function. If enabled, an A will appear alongside the protection setting description. If the function activates it will be recorded as part of the alarm history and cause VISIONr to enter an alarm state; the fault will be displayed in the active faults. If an output relay is set as Alarm it will change state with the fault. Trip. A Trip is considered as a high level function. If enabled, a T will appear alongside the protection setting description. If the function activates it will be recorded as part of the trip history and cause VISIONr to enter a trip state; the fault will be displayed in the active faults page and the unit will automatically display that page, the right hand LED will turn RED if the unit goes to Lockout. Inhibit. An Inhibit is considered as a high level function. If enabled and the function activates it will display in the active faults page with a letter I to indicate the function is causing an inhibit. The feeder may continue to remained closed but cannot be reclosed whilst the inhibit remains. Active In Test. When Enabled this will allow the Protection Function to be Enabled when the Test Digital Input is set to Test. It is normal that when in the Test position certain Functions are disabled to allow easier testing. With this option the user is able to choose which functions are disabled during test. Page 49 of 66

50 Blockable. Enabling this function will allow the Protection Function to be blocked when the corresponding blocking digital input is closed, thereby allowing the user to block certain Protection Functions from being active. Reset. The configuration of the reset allows that particular function to be cleared or reset to a healthy condition providing the condition that caused the fault, alarm or inhibit has been removed. If a fault remains active an asterix appears with the T, A or I and fault description in the active faults page. Auto Reset. This option, when enabled, automatically resets the Fault when the situation that caused the trip has been removed. NOTE:- The autoreclose settings are all set to auto and cannot be changed otherwise the unit would be unable to sequence. Panel-Reset. This option, when Enabled, allows a reset of a fault to be carried out from the front panel of the relay. A reset button will be displayed in the active fault page if any fault has been removed and is enabled for a panel reset. Serial-Reset. This option, when Enabled, allows a reset of a fault to be carried out through the serial link of the relay. Remote-Reset. This option, when Enabled, allows a reset of a fault to be carried out through the digital inputs to the relay. A digital input must be set to Reset Faults and must be closed after the fault condition has been removed in order for the reset to operate. Indicators. The indicators can be used for transparent signalling when a protective condition is active. There are 4 separate indicators to choose from. The indicators are considered as a low level function meaning no automated response arises from an active condition, i.e the unit does not trip (unless activated to) or indicate via the LEDS. The Indicators are used to drive output relays and can be used as a specific function output. For example, all earth fault protection is configured to call Indicator 1, all phase overcurrent protection activates Indicator 2. Indicator 1 and 2 can then be used to distinguish between phase and earth fault trips via a dedicated output relay. Indicators can also be used for hardwired interlocking control when driven from the External Fault based protective functions. The output relay must also be configured as an indicator to operate in this manner. Page 50 of 66

51 17.1 PROTECTION FUNCTIONS Undervoltage. The VISIONr may be configured to trip, alarm and/or indicate as a result of an Undervoltage condition on any phase. Undervoltage may be due to large machines starting due to inrush currents creating voltage dips. As such, Undervoltage protection should be set with the ability to ride-out some Undervoltage conditions to avoid unnecessary tripping. Trip Level. The Undervoltage pickup is set as a percentage of the Voltage setting. If this should decrease and remains below the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an Undervoltage condition can persist before the configured action is taken Overvoltage. The VISIONr may be configured to trip, alarm and/or indicate as a result of an overvoltage condition on any phase. System overvoltages or swells may be as a result of capacitor bank switching for example, so care must be exercised to avoid nuisance tripping. The overvoltage trip delay should be programmed to prevent nuisance tripping during such transients whilst providing protection against longer swell conditions not typically seen or that have adverse effects on equipment. Trip Level. The overvoltage pickup is set as a percentage of the Voltage setting. If this increases and remains above the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an overvoltage condition can persist before the configured action is taken Single Shot Overcurrent. The VISIONr may be set to perform a 1 SHOT overcurrent sequence which permits just one trip to lockout. It may be configured to trip, alarm and/or indicate as a result of an overcurrent condition. The relay uses the O/C Pickup Level set in the Breaker Setting Menu for the Trip Level. Deselecting the Auto panel button of the VISIONr forces this protection to be active providing fault current is detected. Characteristic. This corresponds to a set of time curves (Definite Time, Normal Inverse, Very Inverse and Extremely Inverse) that dictate the time delay to trip depending on the phase current and the characteristic chosen. This is used when co-ordinating and discriminating between faults on larger systems. See Section 18 Trip Time. The trip time is set to determine how long an Single Shot Overcurrent condition can persist before the configured action is taken. Note: this setting is only available when the characteristic setting is set to Definite Time Time Multiplier. This setting is available when the Characteristic is set to Normal Inverse, Very Inverse and Extremely Inverse. It refers to the value ti> used in the calculation of the Trip Time Curves in See Section 18. Page 51 of 66

52 Single Shot Overcurrent High set. The VISIONr also provides a high set instantaneous or definite time single shot overcurrent element. This feature allows for faster tripping on high magnitude single shot overcurrent conditions than would otherwise be provided by the IDMT curve. Trip Level. The HS Overcurrent pickup is set as a percentage of the CT Primary. If the current rises and remains above the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an HS Overcurrent condition can persist before the configured action is taken Single Shot Earth fault. The VISIONr may be set to perform a 1 SHOT Earth Fault sequence which permits just one trip to lockout. It may be configured to trip, alarm and/or indicate as a result of an single shot Earth Fault condition. The relay uses the E/F Pickup Level set in the Breaker Setting Menu for the Trip Level. Deselecting the Auto panel button of the VISIONr forces this protection to be active providing fault current is detected. Characteristic. This corresponds to a set of time curves (Definite Time, Normal Inverse, Very Inverse and Extremely Inverse) that dictate the time delay to trip depending on the phase current and the characteristic chosen. This is used when co-ordinating and discriminating between faults on larger systems. See Section 18. Trip Time. The trip time is set to determine how long an Single Shot Overcurrent condition can persist before the configured action is taken. Note: this setting is only available when the characteristic setting is set to Definite Time Time Multiplier. This setting is available when the Characteristic is set to Normal Inverse, Very Inverse and Extremely Inverse. It refers to the value ti> used in the calculation of the Trip Time Curves in See Section Single shot Earth Fault High set. The VISIONr also provides a high set instantaneous or definite time single shot Earth Fault element. This feature allows for faster tripping on high magnitude single shot Earth Fault conditions than would otherwise be provided by the IDMT curve. Trip Level. The HS Overcurrent pickup is set as a percentage of the CT Primary. If the current rises and remains above the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an HS Overcurrent condition can persist before the configured action is taken. Page 52 of 66

53 Overcurrent High Set. The VISION also provides a 2 nd high set instantaneous or definite time overcurrent element. This feature allows for faster tripping on overcurrent conditions than would otherwise be provided by the IDMT (inverse definite minimum time) curves. The user also has the ability of selecting on which trip in a sequence(if selected) the settings are active. Thereby allowing VISION to trip, alarm and/or indicate as a result of an overcurrent. Trip Level. The Earth Fault 1 HS pickup is set as a percentage of the EF CT Primary. If the current rises and remains above the threshold level, action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an earth fault condition can persist before the configured action is taken. Active On Trip. The trip the setting becomes active on can be set to either the 1 st, 2 nd, 3 rd or 4 th reclose Earth Fault High Set. The VISION also provides a 2 nd high set instantaneous or definite time Earth Fault element. This feature allows for faster tripping on Earth Fault conditions than would otherwise be provided by the IDMT (inverse definite minimum time) curves. The user also has the ability of selecting on which trip in a sequence (if selected) the settings are active. Thereby allowing VISION to trip, alarm and/or indicate as a result of an Earth Fault. Trip Level. The Earth Fault 1 HS pickup is set as a percentage of the EF CT Primary. If the current rises and remains above the threshold level, action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an earth fault condition can persist before the configured action is taken. Active On Trip. The trip the setting becomes active on can be set to either the 1 st, 2 nd, 3 rd or 4 th reclose Cold load Pickup. The VISIONr provides a overcurrent cold load pickup (CLPU) feature which is a 1 SHOT sequence intended for those applications where the start up currents of a system, which occur when the breaker is closed, might cause the normal protection sequence (whether it is RECLOSE or 1 SHOT) to trip. It may be configured to trip, alarm and/or indicate as a result of a Cold load pickup condition. Characteristic. This corresponds to a set of time curves (Definite Time, Normal Inverse, Very Inverse and Extremely Inverse) that dictate the time delay to trip depending on the phase current and the characteristic chosen. This is used when co-ordinating and discriminating between faults on larger systems. See Section 18. Trip Level. The Overcurrent pickup is set as a percentage of the CT Primary If the current rises and remains above the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an Overcurrent condition can persist before the configured action is taken. Note: this setting is only available when the characteristic setting is set to Definite Time Page 53 of 66

54 Time Multiplier. This setting is available when the Characteristic is set to Normal Inverse, Very Inverse and Extremely Inverse. It refers to the value ti> used in the calculation of the Trip Time Curves in See Section Cold load Pickup high set. The VISIONr also provides a high set instantaneous or definite time overcurrent cold load pickup. This feature allows for faster tripping on high magnitude cold load pickup overcurrent conditions than would otherwise be provided by the IDMT curve. Trip Level. The HS Overcurrent cold load pickup is set as a percentage of the CT Primary. If the current rises and remains above the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an HS Overcurrent cold load pickup condition can persist before the configured action is taken Earth Fault Cold load Pickup. The VISIONr provides a Earth Fault cold load pickup (CLPU) feature which is a 1 SHOT sequence intended for those applications where the start up currents of a system, which occur when the breaker is closed, might cause the normal protection sequence (whether it is RECLOSE or 1 SHOT) to trip. It may be configured to trip, alarm and/or indicate as a result of a Cold load pickup condition. Characteristic. This corresponds to a set of time curves (Definite Time, Normal Inverse, Very Inverse and Extremely Inverse) that dictate the time delay to trip depending on the phase current and the characteristic chosen. This is used when co-ordinating and discriminating between faults on larger systems. See Section 19. Trip Level. The Overcurrent pickup is set as a percentage of the CT Primary If the current rises and remains above the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an Overcurrent condition can persist before the configured action is taken. Note: this setting is only available when the characteristic setting is set to Definite Time Time Multiplier. This setting is available when the Characteristic is set to Normal Inverse, Very Inverse and Extremely Inverse. It refers to the value ti> used in the calculation of the Trip Time Curves in See Section Earth fault Cold load Pickup high set. The VISIONr also provides a high set instantaneous or definite time Earth Fault cold load pickup. This feature allows for faster tripping on high magnitude cold load pickup overcurrent conditions than would otherwise be provided by the IDMT curve. Trip Level. The HS Earth Fault cold load pickup is set as a percentage of the CT Primary. If the current rises and remains above the threshold level action is taken after the trip time has elapsed. Page 54 of 66

55 Trip Time. The trip time is set to determine how long an HS Earth Fault cold load pickup condition can persist before the configured action is taken Live Line overcurrent. The VISIONr also provides an instantaneous or definite time live line overcurrent trip. It may be configured to trip, alarm and/or indicate as a result of a Live Line overcurrent condition Live Line Earth fault. The VISIONr also provides an instantaneous or definite time live line Earth Fault trip. It may be configured to trip, alarm and/or indicate as a result of a Live Line Earth Fault condition Load Increase. The VISIONr may be configured to trip, alarm and/or indicate as a result of a load (current based measurement) increase condition. Trip Level. The load increase pickup is set as a percentage of the Constant Current Rating (CCR). Depending on the application a load increase may be a frequent occurrence and care must be taken to prevent nuisance tripping. Trip Time. The trip time is set to determine how long an increased load condition can persist before the configured action is taken Over Power. The VISIONr may be configured to trip, alarm and/or indicate as a result of an Over Power condition. Depending on the application an overpower condition may be a frequent occurrence and care must be taken to prevent nuisance tripping. Trip Level. The Over Power pickup is selected under this option. If Over Power should rises and remains above the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long Over Power condition (above the pickup setting) can persist before the configured action is taken Over Frequency. The VISIONr may be configured to trip, alarm and/or indicate as a result of an over frequency condition. Frequency is auto-sensing (50 or 60Hz) and is determined by the VT input (V1). Trip Level If the frequency increases and remains above the set level, action is taken after the trip time has elapsed. Trip Time The trip time is set to determine how long an over frequency condition can persist before the configured action is taken. Page 55 of 66

56 Under Frequency. Under Frequency protection operates similarly to Over Frequency protection with the exception that measured frequency must fall and remain below the set threshold level for the duration of the trip time before the configured action is taken Breaker. The VISIONr provides the facility to monitor the status of the circuit breaker. Auxiliary contacts on the circuit breaker are used to provide the current state of the breaker to the VISIONr. The VISIONr then compares the physical status of the circuit breaker with the state it should be in according to the VISIONr. If the VISIONr detects the circuit breaker closed via the digital inputs after an open/trip command has been issued the relay will display Breaker Fail on the screen and may be configured to re-attempt to open the breaker, alarm and/or indicate. Similarly if the VISIONr detects the circuit breaker open and has already executed a close command to the circuit breaker Breaker Fail will be reported and action may be initiated. Trip Time The trip time is set to determine how long a delay is implemented for the VISIONr to receive a feeder back of the breaker status that matches the VISIONr status via the digital inputs Programmable External Fault 1-5. The external faults are digital input based, configurable action inputs. Up to 5 are available and bring a flexible PLC approach to the normal protective functionality. Each is independently configurable and can be used to provide permissive interlocking or process commands. Each External fault can be renamed to an eleven character user defined text string, Unit Settings > Edit Custom Strings. Function. The function can be set to any combination of Alarm, Trip, Inhibit, Warn 1-2 or Blockable. The function can also be set to Test option which allows the function to be active when in the test mode. Reset. Normal reset options apply, Auto or a combination of Panel, Serial and Remote. Polarity. This option determines the polarity of the digital input that activates this function. 'OFF=Fault' (typically fed from a NC contact), means that when the digital input is Open the External Fault will action. 'ON=Fault' (typically fed from a NO contact), means that when the digital input is Closed the External Fault will action. Trip Time. Determines the time an external input can remain in its fault state before any action is taken Serial Timeout. For a set period of inactivity on the rear communication port the unit can be configured to take some action in the event. It is worth noting that the VISIONr device is slave to any host system, the unit will not send information via the serial port unless it has been requested by a master device. Page 56 of 66

57 Internal Error. The VISIONr incorporates an internal software and hardware watchdog feature to monitor the integrity of both on board hardware and software systems. This feature may be configured to indicate as a result of any registered problems. If a problem with the hardware or software is located during the error check routines the VISIONr will generate an error code (or diagnostic status) which will be reported at the very bottom of the Analogue Values, Measured Values screen. THE FOLLOWING SETTINGS ARE ONLY AVAILABLE IF THE RECLOSE ENABLE FEATURE IS ACTIVE. TO HAVE ACCESS TO ALL OF THE SETTING GROUPS BOTH THE PHASE AND EARTH FAULT TRIPS MUST BE SET TO THE MAXIMUM OF 4 IN THE BREAKER SETTING MENU Overcurrent 1-4. The VISIONr provides the user with 4 independent Inverse Definite Minimum Time (IDMT) overcurrent elements for increased flexibility when coordinating with other overcurrent devices. The relay may be configured to trip, alarm and/or indicate as a result of an overcurrent condition. The relay uses the O/C Pickup Level set in the Breaker Setting Menu for the Trip Level. Characteristic. This corresponds to a set of time curves (Definite Time, Normal Inverse, Very Inverse and Extremely Inverse) that dictate the time delay to trip depending on the phase current and the characteristic chosen. This is used when co-ordinating and discriminating between faults on larger systems. See Section 19. Trip Time. The trip time is set to determine how long an Overcurrent condition can persist before the configured action is taken. Note: this setting is only available when the characteristic setting is set to Definite Time Time Multiplier. This setting is available when the Characteristic is set to Normal Inverse, Very Inverse and Extremely Inverse. It refers to the value ti> used in the calculation of the Trip Time Curves in See Section 19. Added Delay. This setting is a fixed time which can be added to the time multiplied curve. If this feature is not required the added delay should be set to zero. Min. Response Time. The Minimum Response Time (MRT) specifies the fastest possible relay operating time. If this feature is not required then the minimum response time should be set to the minimum time of 50mS. Page 57 of 66

58 Overcurrent 1-4 High set. The VISIONr also provides a high set instantaneous or definite time overcurrent element. This feature allows for faster tripping on high magnitude overcurrent conditions than would otherwise be provided by the IDMT curve. The relay uses the O/C Pickup Level set in the Breaker Setting Menu for the Trip Level. Trip Level. The HS Overcurrent pickup is set as a percentage of the CT Primary. If the current rises and remains above the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an HS Overcurrent condition can persist before the configured action is taken Earth fault 1-4. The VISIONr provides the user with 4 independent Inverse Definite Minimum Time (IDMT) Earth Fault elements for increased flexibility when coordinating with other devices. The relay may be configured to trip, alarm and/or indicate as a result of an Earth Fault condition. The relay uses the E/F Pickup Level set in the Breaker Setting Menu for the Trip Level. Characteristic. This corresponds to a set of time curves (Definite Time, Normal Inverse, Very Inverse and Extremely Inverse) that dictate the time delay to trip depending on the Earth Fault current and the characteristic chosen. This is used when co-ordinating and discriminating between faults on larger systems. See Section 19. Trip Time. The trip time is set to determine how long an Earth Fault condition can persist before the configured action is taken. Note: this setting is only available when the characteristic setting is set to Definite Time Time Multiplier. This setting is available when the Characteristic is set to Normal Inverse, Very Inverse and Extremely Inverse. It refers to the value ti> used in the calculation of the Trip Time Curves in See Section 19. Added Delay. This setting is a fixed time which can be added to the time multiplied curve. If this feature is not required the added delay should be set to zero. Min. Response Time. The Minimum Response Time (MRT) specifies the fastest possible relay operating time. If this feature is not required then the minimum response time should be set to the minimum time of 50mS Earth fault 1-4 High set. The VISIONr also provides a high set instantaneous or definite time Earth Fault element. This feature allows for faster tripping on high magnitude Earth Fault conditions than would otherwise be provided by the IDMT curve. The relay uses the E/F Pickup Level set in the Breaker Setting Menu for the Trip Level. Trip Level. The HS Earth Fault pickup is set as a percentage of the CT Primary. If the current rises and remains above the threshold level action is taken after the trip time has elapsed. Trip Time. The trip time is set to determine how long an HS Earth Fault condition can persist before the configured action is taken. Page 58 of 66

59 18 INVERSE OVERCURRENT RELAY. This time curves (Definite Time, Normal Inverse, Very Inverse and Extremely Inverse) dictate the time delay to trip depending on the current and the characteristic chosen. This is used when co-ordinating and discriminating between faults on larger systems INVERSE TIME PHASE OVERCURRENT RELAY. Characteristics according to IEC or BS 142 Where: Normal Inverse t = 0.14 ti> [s] t = Tripping Time (I/Is) ti> = Time Multiplier I = Fault Current Very Inverse t = 13.5 ti> [s] Is = Inverse Time Overcurrent Pickup (I/Is) - 1 Extremely Inverse t = 80 ti> [s] (I/Is) Inverse time characteristics. Normal Inverse Extremely Inverse Very Inverse Definite Time I/I s Page 59 of 66

60 APPENDIX 1 FAST SCAN NUMBERS FSN Function FSN Function FSN Function 0 Current Phase I1 42 Reserved 84 Pre Trip V1 2 Current Phase I2 44 Reserved 86 Pre Trip V2 4 Current Phase I3 46 Total Hours Run 88 Pre Trip V3 6 Earth Current 48 Control Input Status Pre Alarm I0 8 Standby Earth Current 50 Control Input Status Pre Alarm Istby 10 Reserved 52 Reserved 94 Pre Alarm I1 12 V1 54 Output Relay Pre Alarm I2 14 V2 56 Hours Run This Close 98 Pre Alarm I3 16 V3 58 Number Of Operations 100 Alarm fault number 18 V12 60 KiloWatt Hours Pre Alarm V1 20 V23 62 KiloWatt Hours Pre Alarm V2 22 V31 64 KiloWatt Hours Pre Alarm V3 24 Power 1 66 KW Peak Demand Total Kilowatt Hours 26 Power 2 68 KW Peak Demand Total Kilowatt 28 Power 3 70 KW Peak Demand Reserved 30 Power Factor 1 72 Pre Trip I0 114 Reserved 32 Power Factor 2 74 Pre Trip Istby 116 Reserved 34 Power Factor 3 76 Pre Trip I1 118 Reserved 36 Reserved 78 Pre Trip I2 120 Reserved 38 Undervoltage 80 Pre Trip I3 40 External Fault 1 82 Trip Fault number Page 60 of 66

61 APPENDIX 2 EXAMPLE OF AN OVERCURRENT SER EVENT The following is an example of the SER event recorder with the VISIONr set to 2 Phase trips to Lockout, both Overcurrent trips set to Normal Inverse 2X Multiplier, 1S dead time, 5S Sequence Reset Time and injecting 2 X Overload giving each trip time of 20seconds. SER Event State Time Date Description of event Seq. Lockout *D 10:38:34:07 07/02/06 Sequence Lockout Function Reset after sequence reset time has expired Lockout & Open *D 10:38:29:43 07/02/06 Lockout Source of CB Opening Reset Breaker Feedback *D 10:38:29:43 07/02/06 CB Open () Overcurrent 2 *D 10:38:29:41 07/02/06 Overcurrent 2 Protection Trip Initiation reset Trip *D 10:38:29:41 07/02/06 Trip Function Reset Overcurrent 2 *R 10:38:29:37 07/02/06 Overcurrent 2 Element Reset Overcurrent 2 *A 10:38:29:37 07/02/06 Overcurrent 2 Protection Trip Initiation Lockout & Open *A 10:38:29:37 07/02/06 Lockout Source of CB Opening Pickup Seq. Lockout *A 10:38:29:37 07/02/06 Sequence Lockout Function Pickup Trip *A 10:38:29:37 07/02/06 Trip Function Pickup Breaker Feedback *A 10:38:09:45 07/02/06 CB Closed () Overcurrent 2 *P 10:38:09:42 07/02/06 Overcurrent 2 Element Pickup Auto Close *D 10:38:09:42 07/02/06 Auto Close Reset Auto Close *A 10:38:09:25 07/02/06 Auto Close Initiated Trip Open *D 10:38:08:42 07/02/06 Protection Trip source of CB Opening Reset Breaker Feedback *D 10:38:08:42 07/02/06 CB Open () Overcurrent 1 *D 10:38:08:41 07/02/06 Overcurrent 1 Protection Trip Initiation reset Trip *D 10:38:08:41 07/02/06 Trip Function Reset Overcurrent 1 *R 10:38:08:37 07/02/06 Overcurrent 1 Element Reset Overcurrent 1 *A 10:38:08:37 07/02/06 Overcurrent 1 Protection Trip Initiation Trip Open *A 10:38:08:37 07/02/06 Protection Trip source of CB Opening Pickup Trip *A 10:38:08:37 07/02/06 Trip Function Pickup Overcurrent 1 *P 10:37:48:42 07/02/06 Overcurrent 1 Element Pickup Due to the filtered inputs of the relay the Breaker Feedback input is delayed by 30-40mS from CB operation. Page 61 of 66

62 APPENDIX 3 SER BINARY EVENT LIST The following is list of the binary events that can be selected or deselected via the VISION Control II windows software. Power UP Overcurrent 3 Trip External Fault 2 Pickup Trip Overcurrent 3 Pickup External Fault 3 Trip Alarm Overcurrent 4 Trip External Fault 3 Pickup Inhibit Overcurrent 4 Pickup External Fault 4 Trip SEQ Lockout Overcurrent HS 1 Trip External Fault 4 Pickup Supply Missing Overcurrent HS 1 Pickup Reserved Overcurrent HS 2 Trip Reserved Overcurrent HS 2 Pickup Reserved Overcurrent HS 3 Trip Protection Enabled Overcurrent HS 3 Pickup E/F Enabled Overcurrent HS 4 Trip Remote Enabled Overcurrent HS 4 Pickup Aux 1 Enabled HS Earth Fault Trip Aux 2 Enabled HS Earth Fault Pickup Aux 3 Enabled HS Overcurrent Trip Liveline Enabled HS Overcurrent Pickup Reclose Enabled CLPU Overcurrent Trip Breaker Feedback CLPU O/C Pickup Remote Close HS CLPU O/C Trip Remote Open HS CLPU O/C Pickup Digin 4 CLPU Earth Fault Trip Digin 5 CLPU Earth Fault Pickup Digin 6 HS CLPU E/F Trip Digin 7 HS CLPU E/F Pickup Digin 8 Single Shot O/C Trip Digin 9 Single Shot O/C Pickup Digin 10 HS Sngl Shot O/C Trip Digin 11 HS Sngle Shot O/C Pickup Digin 12 Single Shot E/F Trip Close Output Single Shot E/F Pickup Open Output HS Sngle Shot E/F Trip Relay Output 3 HS Sngle Shot E/F Pickup Relay Output 4 Liveline O/C Trip Relay Output 5 Liveline O/C Pickup Relay Output 6 Liveline E/F Trip Relay Output 7 Liveline E/F Pickup Relay Output 8 Undervoltage Trip Earth Fault 1 HS Trip Undervoltage Pickup Earth Fault 1 HS Pickup Overvoltage Trip Earth Fault 2 HS Trip Overvoltage Pickup Earth Fault 2 HS Pickup Load Increase Trip Earth Fault 3 HS Trip Load Increase Pickup Earth Fault 3 HS Pickup Over Power Trip Earth Fault 4 HS Trip Over Power Pickup Earth Fault 4 HS Pickup Over Frequency Trip Earth Fault 1 Trip Over Frequency Pickup Earth Fault 1 Pickup Under Frequency Trip Earth Fault 2 Trip Under Frequency Pickup Earth Fault 2 Pickup Breaker Fail Trip Earth Fault 3 Trip Breaker Fail Pickup Earth Fault 3 Pickup Serial Time out Trip Earth Fault 4 Trip Serial Time Out Pickup Earth Fault 4 Pickup Internal Failure Trip Overcurrent 1 Trip Internal Failure Pickup Overcurrent 1 Pickup External Fault 1 Trip Overcurrent 2 Trip External Fault 1 Pickup Overcurrent 2 Pickup External Fault 2 Trip Page 62 of 66

63 APPENDIX 4 INTERFACE BOARD DETAILS Page 63 of 66