CSP1-L Cable and Line Differential Protection System Performance and functional outline

Transcription

1 SYSTEM LINE CSP1-L Cable and Line Differential Protection System Performance and functional outline SCADA RS 232 Operation and display via Notebook Operation and display via CMP1 CAN-BUS FO FO RS 232 (in preparation) CAN-BUS Operation and display via CMP1 Data, FO Data, FO CSP1-L Cable and Line Differential Protection CSP1-L Cable and Line Differential Protection

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3 Contents 1 Outline and Applications CSP1-L digital, phase-selective differential protection Scope of capacity and functions Design Protection functions Controlling and Monitoring Measuring functions Statistical measuring values Data recording Event recorder Fault recorder Disturbance recorder (optional) CMP Operating the CMP Operating elements of the CMP Functions of the operating elements Programming & Parameter Setting SYSTEM-LINE-SOFT Scope of functions and performance Technical Data Auxiliary voltage Voltage supply CMP Voltage supply CSP Measuring inputs Current inputs Voltage inputs (optional in CSP1-L) Measuring precision Function and signal inputs Outputs Power outputs Signal relays Communication interfaces Standards General regulations High-voltage tests (EN [11.94]) EMC Emission test I EMC Emission test II Mechanical stress Climatic stress Dimensions and weights Order Form...27 LF CSP1-L E 3

4 1 Outline and Applications The top-quality digital protection and control sytems of the»system LINE«fulfil all demands and requirements for protection and control at medium-voltage level. The differential protection systems at both ends of the objects to be protected each consist of two separate devices, i.e. the base unit CSP1-L and the operating and display unit CMP1 Protection requirements CSP1-B Busbar protection CSP1-L Line/cable differential protection SYSTEM LINE Figure 1.1: Range of SYSTEM-LINE devices CSP1-F Feeder management Functionality In the CSP1-L, which is capable of working selfsuffiently, all protection functions are integrated. The base unit is installed into the low-voltage niche (mounted on mounting plate). The wide-range power part permits connection of all aux. voltage e- quipment commonly used in MV systems. Ÿ One device for all switchgears and applications The compact operating and display unit CMP1 is decentralilzed and installed in the front door of the circuit breaker panel. The simple, menu-guided operation, the large display with illuminated background as well as the ergonomically designed surface ensure fast and comprehensive information of the operating personnel at all times. A single bus/line replaces the conventional cable tree. The line differential protection system CSP1-L is a fast, phase-selective cable and line differential protection system. SCADA Development work focussed primarily on the following goals: RS 232 Operation and display via Notebook User-friendly operation, Flexibility, Ease of integration into switchboards, Freely selectable functions, Large range of applications and Standardized communication. FO RS 232 (in preparation) CAN-BUS Operation and display via CMP1 Ÿ Cost optimization at the medium-voltage level SYSTEM 1 SYSTEM 2 CMP1-2 CMP1-2 Data, FO Data, FO CSP1-L FO )2 CSP1-L CSP1-L Cable and Line Differential Protection Figure 1.2: Block diagramm Cable/Line Figure 1.3: CSP1-L Cable and Line Differential Protection System 4 LF CSP1-L E

5 2 CSP1-L digital, phase-selective differential protection The base module CSP1-L, which is capable of working self-sufficiently, comprises the complete protection technology. DIP-SWITCHES DIGITAL INPUTS AUX.VOLTAGE SUPPLY LEDs CURRENT INPUTS SIGNAL RELAY CONTROL OUTPUTS Figure 2.1: CSP1-L 2.1 Scope of capacity and functions The base unit CSP1-L features the following special characteristics: Compact design in robust aluminium/plastic housing in accordance with protection class IP50, Wide-range power part, Wide range of protection and control functions, Flexible management of inputs and outputs, Power outputs directly driving the circuit breaker, Communication with host computers via VDEW-interface with fibre optic conductor (optional) (as per IEC ), Various communication interfaces: CAN-Bus, RS232 for parameter setting, Highly efficient fault recording function (optional), Comprehensive self-monitoring and No maintenance required. LF CSP1-L E 5

6 RS 232 SUBSTATION CONTROL SYSTEM MASTER SYSTEM Notebook CAN-BUS )2 CMP1-2 PARTNER DEVICE CSP1-L Cable and Line Differential Protection System RS 232 optional Display Communication &$1%86 Supervision Statistics Disturbance recorder FO CSP1-L PARTNER DEVICE Signal/indication Measurement Protection Input Output MEDIUM VOLTAGE PANEL Figure 2.2: CSP1-L as Line Differential Protection System 2.2 Design The compact CSP1-L incorporates all components required for: Measured value recording and evaluation, Signal and command output, Entry and evaluation of binary signals, Data transmission and storage and Aux. voltage supply. The housing of the CSP1-L is a very robust, extruded a- luminium/plastic profile which meets the exacting requirements set by environmental influences such as vibration, shock, EMV, etc. The upper circuit board tightly seals the housing, and at the same time serves as connection level. Mounted on this conductor plate are all external connections for the transformers and the control inputs and outputs. Below the cover of this conductor plate are the internal current and voltage transformers, opto-couplers and relays. The housing is designed in such a manner that the protection class IP50 is achieved for the electronics. All external connections, except the measuring transformer and control outputs, are screw- or plug-type. This facilitates fast installation. Connection cables can be prefabricated in advance. The base unit CSP1-L is supplied with the currents embossed by the main current transformers and the analogous input signals provided by the voltage transfomers via separate input transformers. These input signals are galvanically decoupled, analogously filtered and finally transmitted to the analog/digital converter. The CSP1-L is equipped with a 24-Bit signal processor for the protection functions and a high-power 16-Bit controller for processing the control and communication functions. Thanks to the digital signal processing, the influences of higher frequency compensation processes and DC components are suppressed. 6 LF CSP1-L E

7 Figure 2.3: Connection diagramm LF CSP1-L E 7

8 2.3 Protection functions The combined protection and control system CSP1-L is equipped with a great number of protection functions which cover nearly all protection tasks in the mediumvoltage range. All protection functions are fully accessible to the operator and can be activated as desired. Parameter setting of the protection functions can either be done via the operating and display unit CMP1 or by means of PC/Laptop via the»system LINE SOFT«. There are four parameter sets available for each protection function. The protection parameter can be changed as follows: By parameter setting, by means of a digital input signal or by means of data protocol as per IEC (VDEW). For the purpose of integrating external protection devices into the monitoring and control process, the CSP1-L is equipped with manifold functions. No. Protection functions ANSI CSP1-L 1 Phase-selective line differential protection 87L 9 2 Overcurrent time protection non-directional* Short-circuit direction non-directional Earthfault protection non-directional* 50/51G 9 5 Overload protection with thermal image* Programmable protection logics (function/blocking/trip block) 9 7 Tripping circuit supervision 9 8 CB failure protection 50/62BF 9 9 Backward interlocking* 9 Table 2.1: Outline of the protection functions of the CSP1-L *= available as from software version 2.0 Specific features of the line differential protection system Stabilization against transformer saturation in case of internal and external faults and continunous transformer closing rush (transformer at the line end outside the protected range). Multiple algorithm for stabilization in case of transient processes. Protected range (length of line) up to 2 km (860 nm) or up to approx. 25 km (1300 nm). Tripping time: <25 ms LWL data coupling of the stations with bi-directional data transmission of status information, pre-processed measuring values and parameter balancing. Automatic synchronization of the measured value comparison. Continuous supervision of the FO data transmission. Continuous determination of running time of the device-device communication. Tripping for the line differential protection depends on the set parameters and takes place either after confirmation by the counter-station (2 out of 2) or immediately after detection on one side (1 out of 2). In each case the CBs are tripped in both stations by an intertripping command transmitted via FO. The devices of both stations are operated as independent slaves at the host interface. 2.4 Controlling and Monitoring For controlling and monitoring tasks the CSP1-L -System is equipped with the following functions: Graphic display of the status of the switching devices. Direct selection of the circuit breaker. Interlocking of the CB. Protocolling of switching actions and changes in switch positions. 8 LF CSP1-L E

9 The switching device positions are recorded via two opto-decoupled inputs each for»off«and»on«on the CSP1-L. The position signals of the various switching devices (up to 3) are shown on the LC graphic display of the CMP1 in the form of a single-line. Fault and differential positions are indicated by a dotted switching symbol in centre position. The single line diagram is pre-set at the factory in accordance with customer requirements. It can be easily adjusted to specific applications thanks to a configuration software. In addition to status recording it is possible to record, protocol and transmit external protection signals, monitoring messages, external control commands and interlocking functions with varying functionalities via the freely adjustable inputs. Q0 Q9 Q8 Figure 2.4: Example Feeder Configuration In addition to the functional assignments, it is also possible to set parameters for rebouncing time and signal logics for each input. By means of potential-free signal relays it is possible to transmit binary signals for protection and monitoring (e.g. CB failure, backward interlocking). CB = Circuit Breaker No. Control functions CSP1-L 1 Number of controllable switching devices 1 2 Number of recordable switching devices displayable on the graphic display 3 3 Number of power outputs for changing the switch position (coil selection) of circuit breakers 2 4 Number of signal relays 6 5 Number of digital inputs with freely settable parameters 8 6 Command output with defined output and extra running times 9 No. Supervision functions CSP1-L 7 Disturbance/diff. position 9 8 CB removed 9 9 Spring tensioned 9 10 Programmable feeder interlocking 9 Table 2.1: Outline of control and supervision functions of the CSP1-L LF CSP1-L E 9

10 2.5 Measuring functions In addition to the recorded measuring values current and voltage, further measuring values such as active and reactive power etc. are calculated and displayed as primary values. The measured values can be called up cyclically and transmitted via the CMP1, a laptop or a PC, or via communication with the host computer. The measuring error rate is < 1% in the operating range and up to 40 x I N < 3%. No. Measuring functions CSP1-L 1 Phase currents IL1, IL2, IL3 9 2 Earth current I E 9 3 Differential current 9 4 Stabilising current 9 5 Harm. stabilisation factor 9 6 Thermal capacity 9 7 Time up to overload tripping 9 Table 2.2: Outline of measuring functions of the CSP1-L 2.6 Statistical measuring values In addition to measuring value recording, the CSP1-L offers statistical functions. Maximum und average value as well as counting functions can be called up via the CSP1-L. The maximum and average values can be called up via a variable time window. The counting functions such as operating hours or switching cycle counter are resettable. No. Statistical data CSP1-L 1 Max. current value 9 2 Mean current value 9 3 Number of operating cycles per switching device 9 4 Sum total of switched short-circuit currents 9 5 Operating data 9 6 Max. differential current 9 7 Mean differential current 9 8 Max. stabilisation current 9 9 Mean stabilisation current 9 Table 2.3: Statistical data (available as from software version 2.0) 10 LF CSP1-L E

11 2.7 Data recording The CSP1-L offers various protocolling and recording methods for events, fault values and fault records, which are stored in the CSP1-L and can be called up via the CMP1, a PC or the communication interface. This way, the operator has all data for fault analysis and fault elimination locally at his disposal Event recorder The event recorder protocols and stores the last 50 e- vents in the CSP1-L. The recorded messages are filed with running number and real time stamp, safe against device failure, in a non-volatile memory. Each event is stored with date, time, cause, event and information with a resolution of 1 ms. This includes all messages which are related to protection, control, the configurable inputs, parameter setting and internal system supervision of the device. In case of a fault, the protection messages are additionally marked with a clear and definite failure case number Fault recorder The fault recorder stores the last 5 faults failure-safe in the CSP1-L in accordance with the failure case number. In addition to the triggering event, all effective measuring values as stored and displayed as primary values. In case of damage, this permits evaluation and analysis at a later date by means of the protection messages stored in the event recorder Disturbance recorder (optional) The analogous and digital information is stored in the disturbance recorder for the purpose of evaluating mains interferences. Up to 8 digitalized measuring values (phase currents, earth current, conductor voltages, residual voltage) are recorded. Simultaneously, binary input and output signals can be recorded. The maximum recording time amounts to 10 s, with a prerunning and extra running time being adjustable. The measured values are recorded in the form of momentary values. LF CSP1-L E 11

12 3 CMP1 The CMP1 is easy to operate and ergonomically designed. The CMP1 is installed in the front door of the medium-voltage compartment as separate operating and control unit. It informs the operating personnel about the momentary status of the feeder and controls the circuit breaker connected to the CSP1-L. A single cable establishes the connection to the base unit CSP1-L and thus replaces the conventional cable tree. This cable can be easily laid jointly with the aux. voltage supply. The large LC-graphic display permits: Display of a freely configurable single line diagram. Display of switch positions, measuring values and operating instructions. Protocolling of events with real-time stamp. Protocolling of interference events with effective values. Comprehensive commissioning support and manifold testing possibilities. 3.1 Operating the CMP1-2 Parameter setting can be effected via the CMP1. All entries are made via the foil keyboard. Check-backs and status indications are shown on the large graphic display with illuminated background. The display shows switch positions graphically, messages as texts and parameters or measured values in table form. Figure 3.1: CMP1-2 The most significant features of the CMP1 include: Flat, compact design, Wide-range voltage supply, Large LC graphic display with illuminated background (128 x 240 Pixel), Foil keyboard as per protection class IP54, Multi-coloured function keys for menu guidance, Two key switches for fixing the various switching authorizations, 11 multi-coloured LEDs (8 freely configurable), Two RS232 interfaces for parameter setting and readout of data via PC. 12 LF CSP1-L E

13 3.2 Operating elements of the CMP1-2 Direct selection Status LEDs RS232 interface LED assignment Switch over: Local/Remote Direct selection Switch over: Parameter setting/ Control Navigation, Save Reset Figure 3.2: Operating elements of the CMP1 3.3 Functions of the operating elements Main menu Display LED assignment Single line Up/Down Switch over: Local/Remote Switch over: Parameter setting/ Control R.H.: Select menu point Move cursor to the right L.H.: Reverse Move cursor to the left Reset e.g. LEDs Scrolling/changing values + = more/- = less Mode 2 following changes: Starting storing otherwise select menu point (like R.H.) Acknowledge popup-messages Figure 3.3: Functions of the operating elements LF CSP1-L E 13

14 3.4 Programming & Parameter Setting There are 4 complete parameter sets available for the protection functions. Thus it is possible to select, set parameters and switch over between four protection parameter sets. There is always one of the four parameter sets active or in operation. Each parameter set can be edited in the background and stored at the end without influencing the actively operating protection and control functions. A changed parameter set, even if only one single parameter has been changed, will only become active upon confirmation of the storing function (acknowledgement). The fundamental parameter set serves to fix the basic configuration of the device such as rated feeder data, control times, configuration of the inputs and outputs and communication. Locally, parameter setting of the CSP1-L can be effected menu-guided via the operating surface of the CMP1 or by means of a PC via the serial interface. 14 LF CSP1-L E

15 4 SYSTEM-LINE-SOFT 4.1 Scope of functions and performance Operating and evaluation programme/functions The software for setting the parameters of the CSP1-L via PC and interface is still in preparation. The»System-Line-Soft«permits evaluation and parameter setting of the CSP1 family of devices. It will work on any PC with the operating systems Windows 95/98 or Windows NT. Communication takes place via the RS232 interface or via the internal CAN-BUS. It permits operation by the use of the mouse (Windows surface) and has a user-guided window technology. The»System-Line-Soft«is easy to instal and is available in different languages. Available for all devices of the»system Line«, Setting of parameters for all device-specific data, Window technology with operating and status line, Menu-guided plausibility checks, Comprehensive help functions, Readout, readin, comparison with the device possible, Archiving, editing such as copying or erasing data sets, Logbook function, Readout of messages, Cyclic readout of measured values, Further processing of measured values (recording, displaying), Controlling possible with single line diagram display, Query to inputs and outputs, Commissioning support (e.g. diff- und stability values in case of DIFF), fundtional support as well as VDEW-Test, Evaluation of fault records, curve-type illustration, editability, additional information such as Trigger, Initiation of test fault records and Time synchronization from the PC. RS 232 CAN-BUS RS 232 (in Vorbereitung) Figure 4.1: Connection example CSP1-L/CMP1-PC via RS 232 LAPTOP LF CSP1-L E 15

16 Figure 4.2: Display event recorder Figure 4.3: Display fault recorder 16 LF CSP1-L E

17 Figure 4.4: Read out of the digital inputs Figure 4.5: Parameter setting LF CSP1-L E 17

18 5 Technical Data 5.1 Auxiliary voltage Voltage supply CMP1 Voltage ranges Power consumption in idle state Max. power consumption V DC 5 W 10 W V AC 5 VA 10 VA Frequency range f = Hz Voltage supply CSP1 Voltage ranges Power consumption in idle state Max. power consumption V DC 14 W 26 W V AC 14 VA 26 VA Frequency range f = Hz Fixed aux. voltages (EN ): DC AC 24 V, 48 V, 60 V, 110 V, 220 V 24 V, 100 V, 110 V, 230 V The power supply part furthermore covers the following commonly used aux. voltages (among others in the UK) with limited tolerance ranges: 240 V AC with the tolerance range -20% / +15% 254 V AC with the tolerance range -20% / +10% The permissible voltage deviations refer to the fixed rated aux. voltages. Buffering of the aux. voltage supply: = 50 ms at Uemin. In case of aux. voltage failure functioning of the device is ensured for at least 50 ms. The fuse for the aux. voltage supply (230) must be dimension min. 4 A, lag. 18 LF CSP1-L E

19 5.2 Measuring inputs Current inputs Quantity: Measuring method: Rated currents: 3 phase currents + 1 summing current (for earth, e.g. cable-type CT) conventional transformers (other sensors in preparation) 1 A and 5 A Connections per current input: 3 (1S1(1 A), 1S2(5 A), 1S3) Measuring range: Power consumption in the power path: Thermal load capacity: Rated peak short-circuit current: x I N (AC) phase currents x I N (AS) summing current = 0.1 VA at I = I N 250 x I N (dynamic half period of sinus oscillation) Rated short-term current 100 x I N (for 1 s) Permanent load capacity: 4 x I N Voltage inputs (optional in CSP1-L) Quantity: 3 x phase voltage (P-P, P-N) + 1 x residual voltage Measuring method: Rated voltages: conventional transformers (other sensors in preparation) 100, 110 V AC Connections per voltage input: 2 (1A1, 1A2) Measuring range: Thermal load capacity: V AC 2 x U N permanent load capacity Power consumption: = 0.1 VA at U = 230 V Rated frequencies: 50 Hz; 60 Hz (parameter adjustable) LF CSP1-L E 19

20 5.2.3 Measuring precision Current (at rated frequency): x I N < 1% of I N x I N < 3% of Measured value Frequency influence: < 2% / Hz Voltage in relation to rated voltage (at rated frequency): V < 2% V...< 1% Frequency influence: < 2% / Hz Frequency: Hz < 0.05% Power: P N < 2% 5.3 Function and signal inputs Opto-decoupler inputs Quantity: Input voltage range: 14 (CSP1-F1) 22 (CSP1-F3) 26 (CSP1-F5) 14 (CSP1-L) V DC V AC Threshold value recognition: low set range: U on = 8.5 V DC /8.5 V AC (50/60 Hz) (code plug plugged in) U off = 5.5 V DC /4.5 V AC (50/60 Hz) high set range: U on = 35 V DC /35 V AC (50/60 Hz) (code plug open) U off = 20 V DC /19 V AC (50/60 Hz) Input current: < 2 ma DC (depending on input voltage) < 2 ma AC (depending on input voltage) Adjustable rebouncing time: ms per dig. input (1 ms pitch) 20 LF CSP1-L E

21 5.4 Outputs Power outputs Maximum load: motor drive: 500 W DC UH = 24 V, I = 22 A DC for t = 30 s (Is = 1.5*I, t = 100 ms) UH = 60 V, I = 5 A DC for t = 30 s (Is = 1.5*I, t = 100 ms) Operating current tripping coil (CB): Number of outputs: Operating current tripping coil OL: Motor drive OM: 300 W DC for t = 150 ms 2 (CSP1-F1) 2 (CSP1-F3) 3 (CSP1-F5) 2 (CSP1-L) - (CSP1-F1) 2 (CSP1-F3) 4 (CSP1-F5) The following data apply for the outputs OM and OL: Low supply voltage range power circuit (range L) Switching voltage: V DC Permissible permanent current: 24 A continiously Rated peak connection current: 40 A (1 s) Current resistance: Shut-down power: short-circuit resistant 24 A with load shedding measures (idle current circuit) High supply voltage range power circuit (range H): Switching voltage: V DC Permissible permanent current: 15 A continiously Rated peak connection current: 30 A (1 s) Current resistance: Shut-down power: short-circuit resistant 24 A with load shedding measures (idle current circuit) LF CSP1-L E 21

22 5.4.2 Signal relays Number: Switching voltage: 6 CSP1-F1/F3/L, 10 CSP1-F5 250 V AC 220 V DC, ohmic load Imax. = 0.2 A inductive load Imax. = 0.1 A L/R < 50 ms 24 V DC inductive load Imax. = 5 A Switching power: Min. switching load: Max rated current: Switching current: Insulation: Contact material: Contact service life: ohmic 1250 VA AC or 120 W DC, respectively inductive 500 VA AC or 75 W DC, respectively 18 V/2 ma 5 A (16 ms): 20 A 4 kv AgNi + Au mechanical: 100 x 10^6 operating cycle 22 LF CSP1-L E

23 5.5 Communication interfaces RS232 X9 (PC interface) Parameter setting locally by means of PC Galvanically seperated via opto-coupler (2.5 kv). Transmission rate: 9600, Baud (adjustable) 9-pole SUB-D bushing CAN BUS 1 X10 X11 System interface to the CMP1 CAN Specification V2.0 part B (extended frame) Siemens 80C167C on chip CAN Module Galvanically separated via opto-coupler (2.5 kv). 9-pole SUB-D bushing FO Interfaces (optional) CSP1-F1,3,5 X7/X7 Optic fibre conductor connection as per IEC (RxD/TxD) (VDEW recommendation) Setting of slave No.(0-255) Via 8-pol. DIP switch on the CSP1 or parameter setting CMP1 Wave length nm Fibre type 62,5 (core diameter)/125 µm (sleeve diameter) (Multimode/multi-gradient fibre) 2 fibres (transmitting/receiving) Plug type BFOC 2.5 (ST ) max. dampening 8 db max. cable length 2 km CSP1-L Wave length 1300 nm 9/125 µm Monomode fibre (ST ) max. dampening 7 db max. length 20 km LF CSP1-L E 23

24 5.6 Standards General regulations Generic standard DIN EN [02.96] DIN EN [03.93] Product standard DIN EN [11.94] BS 142 DIN EN [04.98] High-voltage tests (EN [11.94]) Voltage test IEC [01.77] DIN EN [04.98] All electric circuits against other electric circuits and touchable surfaces. 2.5 kv (eff.)/50 Hz, 1 min. Peak-voltage test IEC [01.77] 5 kv/0.5 J, 1.2/50 µs High-frequency test DIN EN [05.91] Class 3 Within a electric circuit Electric circuit against earth Electric circuit against electric circuit 1 kv/2 s 2.5 kv/2 s 2.5 kv/2 s EMC Emission test I Disturbance resistance against fast transient disturbance values (Burst) DIN IEC Current supply, mains inputs [10.93] DIN EN [03.96] Other in- and outputs Class 4 Disturbance resistance against the discharge of electricity DIN EN Air discharge [05.97] DIN EN [03.96] Contact discharge Class 3 Disturbance resistance against peak voltages DIN EN [09.96] Within an electric circuit Class 4 Electric circuit against earth Disturbance resistance high-frequency electromagnetic fields DIN EN [08.97] Class 3 ±4 kv, 2.5 khz ±2 kv, 5 khz 8 kv 6 kv 2 kv 4 kv 10 V/m Disturbance resistance against cable-conducted disturbance values induced by high-frequency fields DIN ENV [04.96] 10 V/m Class 3 24 LF CSP1-L E

25 Disturbance resistance against magnetic fields with energy-technological frequencies DIN EN [05.94] Class 5 continuous 3 sec. 100 A/m 1000 A/m EMC Emission test II Measuring of radio interference voltage DIN EN [10.97] Measuring of radio interference radiation DIN EN [10.97] Limit value Class B Limit value Class B Mechanical stress Vibration tests DIN EN [05.96] Class 1 Vibration test for proper functioning Continuous vibration testing 0,035 mm, 0,5 gn, 1 run-through in each direction 1,0 gn, 20 run through in each direction Shock and continuous shock tests DIN EN Shock test for proper functioning [05.96] Shock test for resistance Class 1 Continuous shock test 5 gn, 11 ms, 3 Impulses in each direction 15 gn, 11 ms, 3 Impulses in each direction 10 gn, 16 ms, 1000 Impulses in each direction Climatic stress Climatic stress Temperature range for storage/ in case of emergency (max. 2h) the device must be in operation. Temperature range during operation -25 o C o C -10 o C o C Humidity stress DIN DIN IEC [12.86] Class F over 56 days at 40 C and 95% relative humidity LF CSP1-L E 25

26 5.6.7 Dimensions and weights Basic unit CSP1 Display unit CMP1 Weight: Basic unit CSP1-F Basic unit CSP1-L Display unit CMP1 W 368 mm H 264 mm D 155 mm W 307 mm H 246 mm D 55 mm approx. 8 kg approx. 7 kg 2.2 kg 26 LF CSP1-L E

27 6 Order Form Cable- and line differential protection (Base unit) CSP1- Differential protection; phase selective current measuring Single unit for each line-end via optical communication L2 Cable- and wire differential protection system LS existing of: 2 St. CSP1-L2 + 2 St. CMP1-2 + CAN-connecting cable Type key like CSP1-L2 Protection options Standard type differential protection 1 Transformer technology Conventional 1 A and 5 A, 100/110 V AC Auxiliary voltage supply; power circuit DC V DC V Communication interface without Protocol IEC Protocol IEC , fibre optic (FH-ST plug-type connector; 820 nm 62.5/125 µm) Protocol Profibus Optical interface to remote station (L2- und LS-Typ) (FH-ST connecting cable) range up to 2 km; 820 nm 62.5/125 µm range up to 20 km; 1300 nm 9/125 µm Language English German Options PC-card for local disturbance recording C L H 00 V1 V3 P1 1 2 E G K on request on request Cable- and line differential protection(indication and operation unit) CMP1- Frontplate IP 54; key switches LCD- Display without control functions 2 Interface RS CAN-Bus, fixed wired 2 User identification (Logo) Standard 0 LF CSP1-L E 27

28 This Manual undergoes continuous further development and is subject to changes. We reserve the right to include such changes in future editions of the manual, without prior notice. Status: 06/99 28 LF CSP1-L E