UR Universal Relay Series

Transcription

1 G Digital nergy UR Universal Relay Series Revision 5.24 Release otes G Publication umber: GR-4387rev1 Copyright 2010 G Multilin Summary Overview G Multilin issues the UR 5.24 release that introduces new improvements for general and protection functions in the UR Family. Highlights of this release include: Bus Differential Systems B30 B90: o B30, B90 Changes to the 87B element (blocking command) o B90 Digit and trip bus elements LD indication Capacitor Bank P&C System C70: o C70 Changes to the eutral current unbalance element and Phase current unbalanced auto-setting Line Differential Systems L90: o L90 Important changes to the 87L element Optimize its response to setting group switching, comm. channel failures, comm. channel test, multiplexer loopback tests Motor Protection Systems M60 o Thermal element changes to prevents tripping and blocking Common Protection lements: o The following elements has been modified / nhanced: Restricted Ground Fault, Ground time over-current, Synchrocheck, Autoreclose, egative sequence directional, time over curren, Over-excitation, Sensitive directional power, eutral and negative sequence directional, Ground Distance, Split phase. Communications o DP object 52 o Faster Data File transmission o IC prevents communication from freezing o IC61850 prevents unwanted alarms PMU - Synchrophasor o Time stamp in the mili-second field and PMU trigger vents and Records o Accurate record when VTs in delta o Sequence of contact inputs o Data logger changes Transducer input and output o DC ma outputs when assigned to Frequency values Platform o on-volatile latches when re-booting o Programmable push buttons o Flex-elements actual values This document contains the release notes for the 5.24 release of the Universal Relay (UR) Family. G Multilin 1

2 Affected products: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60 Date of release: Oct 06, 2010 Firmware revision: 5.24 This document also comprises the release notes of previous 5.2x firmware versions. If uses have existing UR Family relays installed with older version of firmware, they can download and install this new firmware to benefit from the enhancements described in this release note. If the user does not require these new features and enhancements, no upgrading of the relays is required. Products Affected This release encompasses the following UR Family products: B30 Bus Differential Relay B90 Bus Differential Relay C30 Controller C60 Breaker Management Relay C70 Capacitor Bank Relay D30 Line Distance Relay D60 Line Distance Relay F35 Multiple Feeder Management Relay F60 Feeder Management Relay G30 Generator Management Relay G60 Generator Management Relay L60 Line Phase Comparison Relay L90 Line Differential Relay M60 Motor Management Relay 60 etwork Stability and Synchrophasor Measurement System T35 Transformer Management Relay T60 Transformer Management Relay Firmware Compatibility The new 5.24 firmware that is a part of this release is compatible with the UR series hardware version 4.00 and higher. The use of the new 5.24 firmware requires the nvervista UR Setup software to be version 5.00 and higher. 2 G Multilin

3 FW 5.24 Release details In the following enhancement descriptions, a revision category letter is placed to the left of the description. Refer to the Appendix at the end of this document for a description of the categories displayed. Bus Differential Systems D Digital and Trip Bus elements to turn on the correct LD in the front panel when the element operates. Applicable: B90. This firmware version ensures the LD identified as other lights on when either Digital elements or Trip Bus elements operate. Relays with previous firmware versions turn on the Bus Zone 1 LD when any Digital or Trip Bus element operates. This issue does not affect internal operands, flags, or protection elements. F Bus differential element 87B has been changed to prevent mis-operation due to an unblocking command. Applicable: B30, B90. The 87B element has a Block setting that allow users to block the element s operation previous or after a fault condition. If during a block condition generated after the 87B element operates, the fault condition is removed and then the block on the element is removed as well, the 87B element misoperates. This firmware release ensures that 87B will not misoperate when the block condition is removed under the described conditions. Users that have the block setting of the differential function set to disable, are not affected by this exception. If the block setting of the differential element is being used, it is recommended to upgrade the firmware. Capacitor Bank P&C Systems H C70 to ensure the 60 element properly operates when a source different from source one is set as the element s input. Applicable: C70. The sources are used to link relay s internal elements with the current and voltage inputs (CT/VT), so every one protection and control element has a setting to define the source to use. Typically, currents are assigned to a second or higher source when the relay is connected to more than one current source (set of CTs). Firmware version 5.24 ensures that the neutral current unbalance element 60 properly operates when the eutral Current Unbalance # Bank Source setting is configured to a source different from source one. Customers that have this kind of scheme and/or setting must upgrade their C70 relays to this new firmware version. G Multilin 3

4 524-1 An improved Phase Current Unbalance Auto Setting element ensures accurate compensation factors when phase and differential CT ratios difference is high. Applicable: C70. The Phase Current Unbalance Auto Setting element was enhanced so that compensation factors, applicable to the Phase Current Unbalanced element, are accurately estimated even with high levels of CT mismatch. Previous FW version could calculate incorrect compensation factors in the case where there is a large difference between the CT ratio of phase CTs and CT ratio of differential CTs (.g. Phase CT ratio 3300; Differential CT ratio 10). This issue only affects customers who have set the Current Unbalance Auto Setting lement to manual or Auto. Line Differential Systems C L90 s redundant inter-relay communication for two-terminals schemes was improved to ensure the correct data is received by channel 2 when a loopback test is performed on the multiplexer Applicable: L90. This FW version introduces separate receiving buffers per channel to the inter-relay communication modules. These independent buffers ensure that, for two-terminals redundant channel with multiplexer schemes, the channel 2 will receive and process the right direct input status when a loopback test is performed to channel 1 on the multiplexer side. Previous FW versions might allow channel one to overwrite the direct input status with its default value when the described loopback test is performed. If your line differential scheme is having direct communication between the L90 devices, this issue does not affect them. For customer having schemes with multiplexers, standard maintenance procedures request protection devices to be isolated from the breaker(s) when a function related to the protection elements within the device is being tested. If your maintenance procedures fit to this criteria, there is no risk of misoperation on your system. Otherwise, your device FW version must be upgraded. C L90 s redundant inter-relay communication for two-terminals schemes was improved to ensure relays in both terminals keep on synchronization after performing a loopback test on the multiplexer Applicable: L90. Some multiplexers available on the market, allows users to perform a loopback test on the local unit while still sending data to remote end. As a consequence L90s with redundant channels and communicating through this kind of multiplexers might lose synchronization between them while one channel is being tested (PFLL fail activated) and stay latched in that condition after the test. This FW version adds the ID Fail status to the data stream used for the inter relay communication modules. This ID fail status allows the remote L90 to detect the channel under loopback test condition and then it only uses the other channel for synchronization. This way synchronization is never lost. If your line differential scheme is having direct communication between the L90 devices, this issue does not affect them 4 G Multilin

5 U L90 s inter-relay communication for three-terminal schemes was improved to ensure the devices restore communication between them after a real failure is cleared on at least one of the two comm. Applicable: L90. As a standard behavior, a three terminal line differential schemes will raise the PFLL Fail (synchronization) and CH fail operands on all three terminals when both comm. channels fail in one terminal, However, if only one channel goes back to normal all terminal might stay showing PFLL fail and CH Fail, and then neither the communication nor the differential protection are restored. F L90 was improved to ensure the line differential element reads all the required sources when switching settings groups and having more than one local current source. Applicable: L90. The 87L element can be set to use up to four local current sources signal sources (e.g. breaker and a half schemes where two CTs are connected to a single L90). When the 87L element is set to use more than one current source and the setting group is changed, the 87L element might read only the first current source (signal source 1). This firmware version improves the setting group change routine to guarantee that all the current sources set to the differential element are read when switching from one setting group to another one. If the L90s in your line differential scheme are connected to a single CT source on both terminal or use a single setting group, no action is required. If the L90s in your line differential scheme are connected to more than one CT source in at least one terminal and more than one setting group is configured, then proceed to update the relay s FW version. Motor Protection Systems U Changes on the thermal overload element prevent permanent lockout after a motor thermal overload trip when the element is disabled or the relay is powered off. Applicable: M60. When the thermal overload element 49 operates, it is intended to go to a lockout state until the motor temperature returns to a safe level. This is known as motor cooling time, and the thermal lockout automatically resets after this period. However, there were specific situations where the Thermal overload element may trip and stay permanently locked out unless an emergency re-start is performed. These conditions are: 1. When in thermal lockout state, the thermal element is disabled and, after the motor cooling time has elapsed, the thermal element is enabled again. It is important to remark that changing settings during a thermal lockout is not a normal procedure. 2. When in thermal lockout state, the relay is powered off and, after the motor cooling time has elapsed, the relay is powered on again. Under these conditions the thermal lockout remained on until an emergency re-start command was performed. G Multilin 5

6 F Changes to the Thermal model element prevent an inadvertent trip event when the relay is powered-up after replacing the PWR supply or pulling out and back in the CPU module. Applicable: M60. The motor thermal protection element has been modified to ensure that it does not trip when the relay is powered up after the CPU module is disconnected from the battery on the PWR supply module. This condition is met when pulling out-and-back in either the CPU or PWR supply module, or when replacing the power supply module. Previous firmware versions might allow the Thermal protection element to misoperate when under the described conditions. If end-users maintenance procedure requests the motor to be stopped or your trip command to be isolated when working on the protection relay, the described exception does not affect your motor protection scheme. However, the thermal element could operate so your relay has to be reset before it goes back to service. If your relay s FW version matches any of the listed below no action is required. FW versions that fix this issue: 4.43, 5.24, 5.54, Common Protection lements F Restricted Ground Fault element to ensure correct operation when phase currents are > 13*CT Applicable: T60, G30, G60 The Restricted Ground Fault element was enhanced to ensure the relay will operate correctly when currents incoming from phase CTs are higher than thirteen times the nominal CT current (13*CT). P Ground Time Overcurrent elements have been changed to use the correct signal input when set to phasor Applicable: B30, C60, C70, D30, D60, F35, F60, G30, G60, L30, L60, L90, M60, T35, T60 The input setting within the overcurrent elements determines the type of signal input the elements would use for its operation. Phasors or RMS current can be set to the input setting. Changes to the ground time overcurrent elements ensure they operate based on the ground current phasor magnitude when their input setting is phasor. Previous FW versions have the ground time overcurrent elements operating based on the RMS current value whether RMS or phasor were set to the input setting. P The Synchrocheck elements have been changed to correctly detect a dead source when set to DV1 XOR DV2 Applicable: C60, D30, D60, F60, G30, G60, L30, L60, L90, 60, T60 When the Dead Source Select setting within the Synchrocheck element is set to DV1 XOR DV2, the element has to determine two conditions: a) one of the sources is dead evaluating existing voltage vs. the Dead V1/2 Max Volts setting, and b) the other source is live evaluating existing voltage vs. the Live V1/2 Min Volts setting. Previous FW versions have the synchrocheck elements verifying dead source by evaluating the existing voltage vs. the Live V1/2 Min Volts setting when set as mentioned above. And then the element incorrectly declares dead source. 6 G Multilin

7 Changes to the Synchrocheck elements ensure they evaluate the existing voltage vs. the right setting. This issue does not affect customers who have the Dead Source Select setting set different to DV1 XOR DV2. P The Autoreclose element has been changed to ensure it goes to lockout state when the element is blocked and unblocked while in reclose in progress Applicable: D30, F35, F60, L30 If the operand set to the AR Block setting is activated when a reclose cycle is in progress, the autoreclose element goes to Lockout state. However, if while in such conditions the AR Block is subsequently removed, previous FW versions may allow the reclose element to execute reclose shots. Changes to the autoreclose element ensure the element will stay on lockout state when the described conditions are present The egative Sequence Directional Overcurrent element has been enhanced to deliver additional security during phase-to-phase Applicable: D30, D60, F60, G30, G60, L60, L90 The egative Sequence Directional Overcurrent 67_2 element has been enhanced with a restraint factor that increases the element security when positive sequence current values are higher than 0.8pu (high fault-currents that are typical for phase-to-phase faults). This restriction is enabled when the element is set to operate on the Zero-sequence current. In addition to this, the operating current formula has been modified to consider a bigger portion of the positive sequence current when compared with the negative sequence component. This also increases the element security. P Changes on the Time Overcurrent lements TOC ensure correct operation time when the relay status is change from ot Programmed to Programmed Applicable: B30, B90, C60, C70, D30, D60, F35, F60, G30, G60, L30, L60, L90, M60, 60, T35, T60. All TOC elements have been modified to ensure the element is inactive when the relay is in ot Programmed status. Previous FW versions allow the TOC elements to run while in the described condition, so if there were a fault while changing the relay status to Programmed (setting change required), the TOC elements may operate faster than specified. Standard maintenance procedures request users to block or disconnect trip commands (g. through test blocks, freezing contact outputs, etc) while working on the protective relays. If your procedures do not fulfill this, upgrading your devices firmware version is advisable. P The Over-excitation element has been modified to meet its time specification Applicable: G30, G60, T60 The Over-excitation element has been enhanced to ensure it will operate according to the time that is claimed on the relay s instruction manual when measured V/Hz values are close to the pickup level. Previous firmware version may allow the over-excitation element to operate faster than specified. Users that are have configured this protection element to protect / trip their assets should upgrade the FW version of their devices. G Multilin 7

8 M Sensitive directional power element has been changed to correctly update its actual value when the element is in blocked state. Applicable: G30, G60, F60, M60, 60 This firmware version ensures that sensitive directional power actual value shown by the relay is being updated even when the sensitive directional power element is in blocked state. Previous firmware versions allow this value to freeze to the value the relay showed just before the element was blocked. This issue doesn t affect the correct operation of the protection element and it ensures that the power actual value is updated independent of the element block state eutral and egative sequence directional elements 67 and 67_I2 ensure proper selectivity when the negative sequence current value is zero. Applicable: C70, D30, D60, F60, G30, G60, L60, L90, M60, T60. eutral directional element 67 and egative sequence directional element 67_I2 have an additional supervisor unit that blocks these protection elements if either the polarizing voltage or the operating current are below the cutoff levels. Current and voltage cutoff levels are defaulted at 0.02pu Ground distance elements have been improved to increase selectivity when facing three-phase or phaseto-phase faults and remote single pole tripping. Applicable: D30, D60, G60, L60, L90, T60. The ground distance protection algorithm was modified to have an enhanced over-current supervision that incorporates a positive sequence restraint factor. Zero-sequence current is a vital quantity for ground distance elements correct operation. However, spurious zero-sequence current resulting from CT saturation and CT errors, switch-off transients during double-line and three-phase faults and system unbalance, may lead to improper operation of ground distance element. To increase ground distance security during multi-phase faults with specifically low settings of OC supervision, a positive sequence current restraint of 5% was added to over-current supervision. ow current value has to be higher than [In-0,05 x I_1] in order to release ground distance operation. This enhancement allows the ground distance element to deal with ground faults while having a remote single pole open scenario. These changes increase the Ground distance element selectivity ensuring additional tripping security. F The Split Phase element to ensure its proper operation on phases B and C when time delay setting is set to zero. Applicable: G30, G60. An enhanced Split phase element ensures a proper operation on detection of a split phase condition on phases B or C and having a time delay setting of zero. In previous firmware versions, the split phase element would not operate when detecting a split phase condition on phases B or C when the time delay was set to zero. 8 G Multilin

9 Communications C DP 3.0 protocol to properly report internal time delays under DP object Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. The DP3.0 protocol has been changed to accurately estimate and report the value of time delay fine that is comprised within the DP 52 object. This time represents the period between the time of message reception and the time of message reply by the UR relay and helps the DP master to calculate the delay on the serial wire Faster Data File Transmission Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. UR Relays now use the TFTP ports to transmit data files reducing the transmission time..g. event records, oscillography, fault reports, data logger. C Changes on IC client/server communication ensures proper interaction with 02 Siemens SICAM PAS clients Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. The IC61850 station bus communication has been enhanced to operate correctly when two connected SICAM PAS clients are recovering from broken link. Previous firmware version could allow one of the connected UR relays to re-start when experiencing that condition. C Changes on the IC protocol prevents possible communications freezing when losing one of the masters. Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. UR relays have been improved to prevent communication freezing when linked to an IC Master. In the Previous firmware versions relay communication could freeze on the condition that the IC60870 master dropped after about 02 days of polling message integrity Changes on IC61850 GOOS messages prevent unwanted alarms Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. ow GOOS messaging has a dynamic algorithm to estimate time to live period, which prevents the generation of unnecessary Remote device off Alarms. Previous firmware version could raise this alarm when communication channels and remote devices were linked. PMU - Synchrophasors M Changes on Synchrophasor Timestamp ensure the correct rollover of milliseconds field Applicable: 60, D60, L90, G60. During continuous polling of PMU data it was found that the seconds field of synchrophasors timestamp didn t show the correct rollover from milliseconds approximately once every 45 minutes. As a consequence, every 45 minutes one package of PMU data may show an incorrect time stamp in the milli-seconds field. Firmware version 5.24 corrects this issue. G Multilin 9

10 M Changes on Synchrophasor Timestamp ensure an accurate time stamping of the PMU trigger Applicable: 60, D60, L90, G60. The PMU recorder element has been modified to ensure the trigger is accurately time stamped. Previous FW version may time stamp the trigger event with the time of the previous PMU reporting interrupt. All customers using UR PMU functionality should upgrade their devices. vents and Records R Fault Report to guarantee accurate records when VTs are in delta. Applicable: B30, B90, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, T35, T60. UR fault report algorithm has been improved to ensure prefault and fault voltage phasors are properly computed and stored within fault reports when VTs are in delta configuration and VT substitution setting is enabled. Also, the fault report is further enhanced to display only those elements that operated at trigger. R vent recorder to guarantee proper sequence of Contacts inputs events when having different debounce time. Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. UR event recorder was improved to ensure that all contact input events are correctly sequenced by the event recorder. Previous firmware version could allow the event recorder to miss the correct order if two contacts inputs with different debounce time settings operated almost at the same time. R Data logger element has been modified to ensure the newest data is placed at the end of the queue when rolling over. Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. This firmware version ensures the data logger element always displays the older data first followed by the newer data. Previous firmware versions may show the newest data at the start of the queue instead of at the end. Relays with firmware version previous to 4.80 are not affected by this issue. Transducer Inputs & Outputs M Transducer DCMA outputs have a new pu-base value when assigned to frequency values Applicable: B30, C30, C60, C70, D30, D60, F35, F60, G30, G60, L30, L60, L90, M60, 60, T35, T60. The transducer DC mili-amps output elements were modified to have a new pu-base value when the setting field DCMA output source of an analog output element is set to frequency values. The new pubase value is 1Hz (1pu = 1Hz). Previous firmware versions have a pu-base value of 1pu = 100Hz. 10 G Multilin

11 Customers using the transducer DC mili-ampere output to represent frequency values are advice to review their settings and re-test this function after upgrading their device with FW version 5.24 Platform P The on-volatile Latches elements have been changed to ensure they will maintain the output status when cycling power to the relay Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L30, L60, L90, M60, 60, T35, T60 Changes to the on-volatile Latches ensure those elements will maintain the output status (on or off) when the relay is power off and on. Previous FW versions could allow the elements output to momentarily change state when the relay power is cycled. Customers using the non-volatile Latches for protection or control purposes are advised to upgrade their relays FW version. D nsuring programmable push buttons reset when keeping them pressed for a period longer than the Auto Reset Delay setting Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. Internal control algorithm of programmable push buttons was improved to guarantee that they would reset properly even if they were kept pressed for a period longer than their Auto Reset Delay setting. It only applies when the Auto Reset Function is set to enable. M Flex-elements to ensure accurate actual values when inputs are assigned to analog parameters that have a decimal point in the CT or VT ratio setting. Applicable: B30, B90, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. UR Flex-elements were enhanced to show exact Flex-element s actual values when their analog inputs, InputPlus or InputMinus, are assigned to parameters that have a decimal point in their scale factor..g. voltage values which VT ratio contains decimals such as VT 6900V: 120V = 57,5:1), frequency values. M Flex-elements to ensure accurate actual values when both inputs are assigned to Frequency values. Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. UR flex-elements are improved to show precise Flex-element s actual values when both analog inputs, InputPlus and InputMinus, are assigned to Frequency values. In such conditions, the previous FW versions could calculate the corresponding actual value incorrectly. G Multilin 11

12 (Previous) FW 5.23 Release details In the following enhancement descriptions, a revision category letter is placed to the left of the description. Refer to the Appendix at the end of this document for a description of the categories displayed. Distance Protection Ground distance elements were enhanced to increase selectivity and speed. Applicable: D30, D60, G60, L60, L90, T60. The ground distance protection algorithms were modified to add additional supervision to the directional and phase selection elements and to increase speed. ow the supervision element depends on I2 and 3I0 current values and, in terms of speed, coordination timer for current reversal was changed from 4.5 to 1.0 cycles of pickup delay. Communications Preventing more than 5 IC61850 Clients from connecting to the UR. Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. The IC61850 Client/Server protocol was enhanced to prevent more than 5 clients from simultaneously connecting to the UR devices as specified in the manual. In the previous version of the firmware, if more than 5 clients attempted to simultaneously connect to a UR device, the connection to the 6th and additional clients would remain open even after communications had ceased. By having these additional connections remaining open, the overall communications to the UR would be slower than desired. In this new version of firmware, a maximum of 5 IC61850 clients can communicate to the UR at one time and thus, all connections will open and close correctly. C IC : Communicating to multiple masters properly. Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. The IC protocol was enhanced to ensure that the UR devices correctly communicate to multiple IC masters. In the previous version of firmware, if two IC masters were communicating to an UR device and, one of those masters were interrupted or stopped while sending requests, the UR would stop IC communications and the UR s front panel would respond slowly when navigation buttons were pressed. When communications were disrupted due to a loss of one of the masters, all protection and control functions would continue to operate correctly. C nhanced IC61850 client/server communication prevents UR relays from losing communication when two clients are polling data. Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. When two or more IC61850 clients were linked to one UR relay, and at least one of them was polling a report (buffered or not), all clients could lose connection in the event that, the client polling the report, was disconnected from the LA. Then the relay had to be powered off and on to recover communications. This firmware version corrects this issue. 12 G Multilin

13 Real Time Clock B Improved IRIG-B noise immunity. Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. IRIG-B inputs were enhanced to reduce noise sensitivity by rejecting short duration input pulses (lower than 250micro-sec). In previous firmware version, on the condition that a DC Shift IRIG-B signal had been set and a high frequency noise came in through IRIG-B inputs, the relay could reboot. Front Panel D Preventing programmable push buttons from latching up when pressing more than one simultaneously. Applicable: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60. Internal control algorithms of programmable push buttons was improved to guarantee that no one of them would latch when more than one button are pressed simultaneously. G Multilin 13

14 FW 5.22 Release details In the following enhancement descriptions, a revision category letter is placed to the left of the description. Refer to the Appendix at the end of this document for a description of the categories displayed. Summary This document contains the release notes for the 5.22 release of the Universal Relay (UR) series. Affected products: B30, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60 Date of release: October 26 th, 2007 Firmware revision: Communications nhancement C DP3.0: Analog Values not being reported correctly Applicable: B30, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60 The DP3.0 Analog reporting has been enhanced to ensure that analog values are correctly updated and reported to the DP master. In the previous version of firmware, the Universal Relay would meter analog values properly however, after prolonged periods of time, the analog values being reported over DP would stop being updated and continually report the last known value. All protection and control functions continued to operate correctly when this occurred. C Status of LD s showing incorrect value being reported through communications protocols Applicable: B30, C30, C60, C70, D30, D60, F35, F60, G30, G60, L60, L90, M60, 60, T35, T60 The status of the LDs that are being reported through communications protocols have been modified to report the correct status of the LD. In the previous version of the firmware, the status of the LD s reported through communications would actually report the status of the Operand driving the LD whether or not the LD was Latched. In the new version of the firmware, if the LD is programmed as Latched, the status reported through communications will show this Latched status until operand driving drops out and the reset command has been given to the relay. 14 G Multilin

15 FW 5.21 Release details In the following enhancement descriptions, a revision category letter is placed to the left of the description. Refer to the Appendix at the end of this document for a description of the categories displayed. Summary This document contains the release notes for the 5.21 release of the UR firmware. Affected products: F60, D60, L90, L60 relays Date of release: March 9 th, 2007 Firmware revision: 5.21 Communications P Wattmetric Ground Fault: Wattmetric Ground Fault element improvements to allow operation times that meets published specifications Applicable: D60, L90, L60 The operation of the Wattmetric Ground Fault protection element was improved so that it s execution meet the operating times specified in the product manuals. In the previous firmware version, the operate time would be delayed if the Sref/Sop setting was configured with a value less than 1.0 U Metering and Protection using Source 3: Improvements to the metering being performed when using Source 3 Applicable: F60 If the Hi-Z module is purchased with an F60, a third source is made available. On the 5.20 firmware version, if source number three was configured, the metering and associated elements that used this source were measured incorrectly. This function was enhanced so that the values measured in source 3 will be calculated correctly. If an F60 used version 5.20 and did not have source three configured, the relay operated correctly. G Multilin 15

16 FW 5.20 Release details In the following enhancement descriptions, a revision category letter is placed to the left of the description. Refer to the Appendix at the end of this document for a description of the categories displayed. Summary This document contains the release notes for the 5.20 release of the UR Universal Relay series. Affected products: UR Universal Relay series Date of release: Oct 23 rd, 2006 Firmware revision: 5.20 C70 Capacitor Bank Relay Product Launch of the C70 Capacitor Bank Protection and Control System The C70 is an integrated protection, control and monitoring device for capacitor banks based on the wellestablished and proven UR platform of G Multilin. C70 provides both the bank and system protection schemes for shunt capacitor protection. The current and voltage-based protection functions are designed to provide sensitive protection for grounded, ungrounded single and parallel capacitor banks and banks with taps, for a variety of capacitor bank configurations. Combined with sophisticated built-in control functions, the C70 can switch banks In and Out with relative ease for automatic voltage regulation. Voltage Differential Protection (87V) The Voltage Differential Protection element is used to detect faults by comparing the magnitudes of the voltages on a per-phase basis between the bus voltage (full cap voltage) and a tap voltage. Compensated Bank eutral Voltage Unbalance Protection (59U) The eutral Voltage Unbalance element detects Overvoltage conditions of the neutral-point voltage of an ungrounded capacitor bank. Additional sensitivity is achieved through compensating for simultaneous system unbalance and inherent bank unbalance. Bank Phase Overvoltage Protection (59B) The Bank Phase Overvoltage element responds to the voltage drop across capacitors individually in each phase. eutral-point voltage of the capacitor bank are compared with the phase to ground voltages measured at the bus in order to detect voltages that cause stress and damage to the capacitors. Phase Current Balance Protection (60P) The Phase Current Balance element responds to the unbalance (split-phase) current measured between two parallel banks, typically using sensitive window-type or core-balance CT. This element applies compensation for the inherent bank unbalance. 16 G Multilin

17 eutral Current Balance Protection (60) The eutral Current Balance element responds to the unbalance (split-phase) current measured between neutral currents of two parallel banks. The function applies simplified, but practical compensation for the inherent bank unbalance. Time of Day Control The Time of Day Control element allows for the C70 to perform automatic control of capacitor banks based on Dates and Real Time of day. Voltage Regulator Control The Voltage Regulator element allows for automatic control of capacitor banks through monitoring of voltage, power factor, or reactive power. This advanced control function provides simple O/OFF controls using individually settable close/open thresholds and timers. Capacitor Control Supervision The Capacitor Control Supervision scheme uses inputs from various different protection and control elements sources for providing capacitor bank control, while also providing Remote/Local and Auto/Man control access rights. ew CT/VT Input DSP Module 8V 8 VT Inputs This new 8V module provides an option to order a CT/VT module with all Voltage Inputs. The 8 available voltage inputs are split up into to two separate groups with each group intended for measuring the three phase voltages available from one Capacitor bank circuit. 60 etwork Stability and Synchrophasor Measurement System Direct Analog Inter-Relay Communications The Direct Analog communications allow for high-speed sharing of analog data between multiple 60 relays. The Direct Analog feature uses the UR Inter-Relay communications modules that allow for communications between 60 that are located large distances apart. The Direct Analog outputs co-exist on the same communications channel as the Direct I/O feature, with Direct I/O being given higher priority. FlexMath Summator Six identical FlexMath Summators are available per relay. ach Summator consists of an Addition block that contains up to six FlexAnalog Inputs and an Output Comparator. ach of the six Analog Inputs can be scaled individually and dynamically included or excluded in the Addition calculation. The comparator can be configured to look at either the signed or the absolute value of output of the addition block and assert when the pickup setting is exceeded. G Multilin 17

18 UR revision 5.24 release notes ew Inter-Relay Communications module 7V RS422 with dual synchronization clocks Independent Clock signal inputs are now available for each RS422 channel of this dual-channel communications module. This permits each RS422 channel to be connected to separate communications networks, each with their own respective synchronization sources. Flexlements : PMU Voltage value incorrect after setting change The value that was being shown and evaluated for PMU voltage within Flexlements has been corrected to represent the actual value that is measured. The previous version of the firmware caused the value to be represented incorrectly once the VT Secondary setting has been changed. L60 Line Phase Comparison Relay Charging Current Compensation The L60 Charging Current Compensation feature is beneficial when the L60 is applied on a long overhead transmission lines or on the cable line. This feature removes charging current from phase currents and as a result from the mixed current as well in both steady state and system transient conditions. When L60 is applied on breaker-and-a-half applications, charging current is removed proportionally from each breaker, based on the current flow through the breaker. nhanced Tripping Security The nhanced Tripping Security increases the security of the L60 Phase Comparison scheme by providing a separate, higher Stability angle setting for the First Coincidence of Phase Comparison signals. Additionally, if the integrated value is above the regular Stability Angle setting, but below the nhanced Stability Angle setting, the function arms itself toward tripping on the next coincidence. The regular stability angle setting, 87PC STABILITY AGL, controls tripping on the next coincidence This Feature is operates in both single-phase comparison and dual-phase-comparison modes of operation. In dual-phase comparison mode, second coincidence is counted from any of 2 integrators (positive or negative halves of the signal). nchanced Stability Angle Stability Angle Integrator Trip Output Trip Reset Timer Trip Reset Timer Second coincidencetimer Trip from First Coincidence Second coincidencetimer Trip from Second Coincidence egative Sequence Overvoltage Protection The egative-sequence Overvoltage element detects Transmission Line faults under weak system conditions through analyzing the I2Z V2 term for negative-sequence voltage and current. 18 G Multilin

19 Advanced Starting Protection The Advanced Starting Protection scheme is used to provide protection on Transmission Lines with a weak-infeed at one end or heavily loaded lines that may have significant negative-sequence current. This scheme utilizes three independently operated elements for detecting faults, including egative Sequence Overvoltage, Rate of Change of egative Sequence Current, and Rate of Change of Positive Sequence Current. nhanced Reference Phase and Angle Selection The nhanced Reference Phase and Angle Selection feature allows the L60 to minimize the effect of Corona phenomena on the dependability of the Phase Comparison Blocking Scheme. This feature introduces a phase shift setting that can be used to control the angular position of the operating signal with respect to the phase voltage used by the line carrier. T60 Transformer Management Relay nhanced Transformer Differential Protection The Transformer Differential Protection element Harmonic Restraint element has been improved to include only those measured currents that are greater than the Current Cutoff Level setting in the calculation of the average harmonic restraint current. This only affects the second harmonic restraint calculations when the Average IRUSH IHIBIT MOD is selected. Synchrophasor Measurements (PMU) Synchrophasor Measurement available on the D60 and L90 Applicable: D60, L90 The D60 Distance Protection Relay and the L90 Line Differential Relay are now available with the option for having Synchrophasor Measurement in the same device as the protection relay. Measurement of Synchrophasor data will allow for accurately measuring and analyzing the state of the power system based on real-time data collected from Phasor Measurement Units located all across the network. Through collection of this accurately time-tagged Phasor data, System Controllers can quickly identify power system events through visualization of system quantities such as power flow, dynamic phase angle separation, and the rate of change of frequency from different parts of the system. Communications IC61850: Two Reporting Buffers The IC61850 protocol in the UR family was enhanced to support two Buffered Report Control Blocks (BRCB). This enhancement allows two separate IC61850 clients to receive buffered information from the same UR series relay. G Multilin 19

20 IC61850: GOOS Communication nhancements (Analog Data) UR revision 5.24 release notes The IC61850 GOOS Communications was enhanced to allow the sending of Analog data to other IC61850 compatible devices. Individual MMXU deadbands values can be set to initiate transmission once the value drifts beyond a preset deadbands. IC61850: Custom Analog Logical odes The IC61850 protocol has been enhanced to allow mapping of UR Analog data into GGIO Logical odes. This mapping function allows for creating of custom Logical odes from the many analog parameters available in the UR relays. IC61850: Additional Synchrophasor PMU Logical odes Applicable: D60, L90, 60 Additional IC61850 Logical odes were created that allow for accessing information about the PMU records that are stored in Synchrophasor-enabled devices. Data items added include umber of Triggers, Max umber of Records along with ability to send commands to Clear all recorded records. C DP 3.0 & IC : Dedicated Scaling Settings for Power Factor The DP3.0 and IC protocols have been enhanced to provide dedicated scaling and deadband settings for Power Factor quantities. C DP3.0 and IC : Support for Larger Deadband Settings The DP3.0 and IC protocols have been enhanced to allow for larger settings for the deadbands for analog parameters. All deadband settings have been modified to allow for accepting of a 32 bit integer number. C DP 3.0: Configurable DP3.0 TCP/IP Connection Timeout The DP3.0 protocol has been enhanced to provide the ability to configure the length of time a UR will lockout for once it has lost communications with it s DP master. C DP3.0: Binary Counters (Object 20, 21) Responding with Incorrect Data Variation The DP3.0 Binary Counters (Object 20 and 21) have been improved to respond with the correct Variation requested for by the master. In previous versions, the Binary Counters responded to requests for data in Variation 1, regardless of what Variation was requested. 20 G Multilin

21 Platform nhanced CT/VT Health Diagnostics This new release of CT/VT input modules (8L, 8M, 8, 8R, 8V) provide nhanced CT/VT circuit monitoring improving the overall reliability of security of measured and processed power system information. These new modules continually monitor the signals being received, measured, and processed to verify the integrity of the data. If any of the data is deemed to be invalid, the relay will not use the corrupted data and indicate this problem to users through the relay self test indicators. LD States available as FlexOperands ew FlexLogic Operands have been added to reflect the state of the LD s found on the front panel. The states of the LD s can now be used anywhere Flexlogic operands can be assigned (i.e. Flexlogic). Support for French and Russian Languages The French and Russian Languages are now available in the UR Platform. These languages are fully supported and can be viewed in the UR Front Panel, the UR Setup Software, and in the manuals. Supervision of Wattmetric Zero-Sequence Directional Protection nhancement Applicable: F60, D60, L60, L90 The Wattmetric Zero-Sequence Directional element can use either the internally calculated zerosequence voltage or an externally supplied zero-sequence voltage source (broken delta VT) connected to the auxiliary VT channel. When supplied from an external zero-sequence source, the auxiliary VT channel must be configured under Voltage Bank settings as a neutral voltage (Vn) otherwise the Wattmetric Zero- Sequence Directional element should not operate. Previously, the Wattmetric Zero-Sequence Direction element would operate regardless of the auxiliary VT input setting. This has been resolved in this release. Breaker Fail Seal-In Reset operating incorrectly The Breaker Failure Seal-In logic has been improved to ensure that once the breaker failure element has been initiated, the initiation signal will remained sealed-in until the current falls below the breaker failure current supervision setting. VT SCODARY setting Range Decreased The minimum setting value for the VT Secondary has been decreased to 25 Volts to allow for UR relays to be connected to a wider range of interposing voltage transformers. G Multilin 21

22 UR Setup Software UR revision 5.24 release notes Ability to view UR Setup Software on PC s with Dual Monitors The UR Setup software has been enhanced to allow viewing of the software on computers that have dual monitors installed. Users now have the ability of dragging the setting windows within the UR Setup Software to a second installed monitor thus increasing the overall size of the workspace and the amount of windows that can be viewed at one time. Support for Converting UR Setting Files to version 5.20 The UR Setup program can convert setting files that have been created for older versions of firmware to the new 5.20 version of firmware. Setting Files created in firmware versions from 2.4X to version 5.0X can now be converted to the latest version. nhanced Printing of Setting Files The UR Setup software has been enhanced to allow for adding customized Header Information for better documenting of your Revision controlled Setting File Documents. The printing formatting has also been improved to ensure all settings can cleanly fit into the printing area. 22 G Multilin

23 Upgrade paths It is our recommendation that all customers upgrade to the latest version of UR-series firmware to take advantage of the latest developments and feature enhancements. Firmware upgrades can be easily preformed using the nervista UR Setup software. This software can also convert settings files from an older version to the latest version and provides a Difference Report once the conversion has been completed. This Difference Report identifies new settings and additional information to assist the user during the upgrade. Upgrade path for versions 4.00 and above For UR-series devices installed with versions 4.00 firmware and above, the revision 5.60 release can be uploaded to the relay using the nervista UR Setup software. Upgrade path for revisions below version 4.00 For UR-series devices installed with versions of firmware below 4.00, an upgrade package must be obtained from G Multilin to upgrade the relay CPU and CT/VT modules. Benefits of revision 4.00 and above: The benefits of revision 4.00 and above are as follows: Supports many new features and functionality IC communications protocol 100 Mb thernet IRIG-B repeater Isolated RS485 and IRIG-B Synchrophasors in the D60, L90, 60 & G60 Support for Breaker-and-a-Half Transmission Line Protection (D60, L90) Motor Health Diagnostics (M60) nhanced Front Panel xceeds new I C37.90 requirements - Transient immunity (2 to 4 kv) G Multilin 23