GENIEEVO Range. Protection and Control Module P4. Unit Protection Cable Feeder. Functional Description. Issue A1

Transcription

1 GENIEEVO Range Protection and Control Module Unit Protection Cable Feeder Functional Description Issue A1 B

2 Abbreviations and Glossary of Terms Revisions Issue A Draft Issue A Changed to evo specification. Inclusion of disconnector and Vacuum bottles. rev A1 Page 2 of chneider Electric

3 Abbreviations and Glossary of Terms Contents REVIION... 2 CONTENT... 3 GENERAL... 4 ANI CODE NUMBER... 4 APPLICATION... 6 PILOT WIRE DIFFERENTIAL (UNIT PROTECTION)... 7 INPUT/OUTPUT LIT... 8 TELECONTROL COMMAND LIT... 9 GLOARY OF YMBOL LOGIC CHEME NAVIGATION TRIP CIRCUIT UPERVIION Principle...11 Operation...11 PRING CHARGE UPERVIION... ERROR! BOOKMARK NOT DEFINED. Principle...12 rev A1 Page 3 of chneider Electric

4 Abbreviations and Glossary of Terms General ANI Code Numbers Unit protection (pilot wire differential) rev A1 Page 4 of chneider Electric

5 ummary heet Unit protected cable feeder Application This protection and control module provides a high speed differential protection in interconnected systems using pilot wires between each substation. A choice of three of the most common relays is offered to allow matching of both ends of the feeder. A typical application is a cable feeder or incomer. everal optional features ensure maximum flexibility and cost effectiveness in meeting the requirements of different systems. Protection Pilot wire unit protection relay, choice of : - olkor R/Rf - MBCI - MHOR04 Instrumentation Control Tripped on fault indication contact Disconnector in Mains position Disconnector in Earth position Disconnector in Off position Optional Control / Diagnosis PM600, PM620 or PM650 digital PowerMeter with Modbus communications providing : - current, voltage, frequency - power, energy, power factor - THD voltage and current per phase - kwh pulse output ee PowerLogic selection guide for further information Telemecanique Momentum TIO module to provide interface to a Modbus communication network, such as PowerLogic or Transparent Factory. MVAX31 trip circuit supervision relay Ammeter Current Transducer (entrelec) 0-1A, 0-10V, 2-10V, 0-5V, +/-10V, 0-1mA, 0-20mA, 4-20mA Interposing trip/close relays Trip/Neutral/Close switch Local/Remote selector switch pring charge motor on/off switch rev A1 Page 5 of chneider Electric

6 Application Application This protection and control module is intended for secure feeder and incomer applications with pilot wire differential is the main protection. It could be used in conjunction with P5 for protection of a incoming cable to a switchboard, as in figure 1. P5 50/51 Pilot wires Operation Pilot wire differential protection compares currents entering and leaving the protected zone. For faults within the zone it is required to trip the circuit breakers at both ends to isolate the fault. Two unit protection relays are therefore required, one at each end of the feeder. A pair of pilot wires is used to transmit information between the two relays so that each relay is able to compare the current flowing at its respective end with the current at the other. The relays at both ends operate simultaneously, providing rapid fault clearance irrespective of whether the fault current is fed from both ends or just one. Choice of unit protection relay Usually when installing a circuit breaker with unit protection relay on the other end already exists and must be matched. In order to achieve this provides a choice of the most common relays, as below. Reyrolle olkor R/Rf Alstom MBCI Translay Alstom MHOR4 Figure 1 ingle cable unit protection It could also be used in closed ring applications where conventional time graded directional protection is not sufficient, as shown in figure 2. For detailed information on each relay including settings and technical specifications please consult the manufacturers documentation. Integration within a communications system P5 50/51 50/51 P5 None of the above relays are equipped with a communications facility as is epam. A separate Modicon Momentum input/output module is provided, as an option, to enable the panel to be monitored and controlled using a R485 communications network. Pilot wires Pilot wires Trip Circuit upervision Trip circuit supervision is optional and can be provided by 2 different methods. Pilot wires Pilot wires Using an Alstom MVAX31 If the Momentum I/O module is being used for connection to a communications network it will also provide trip circuit supervision and charging springs supervision. Figure 2 Closed ring system rev A1 Page 6 of chneider Electric

7 Protection Functions Pilot Wire Differential (unit protection) One output contact from the chosen unit protection relay is wired to trip the circuit breaker. The other is used to provide remote indication, either hardwired or via the Momentum I/O module. For detailed information on the chosen relay including settings and technical specifications please consult the manufacturers documentation. rev A1 Page 7 of chneider Electric

8 Momentum Resource Allocation Tables Input/output list The following inputs and outputs are configured Input Details tate 1 I1 CB closed & trip circuit supervision Closed I2 CB open & trip circuit supervision Open I3 Earth position selected Earth selected I4 prings charged (ready to close) prings charged I5 Local / Remote selector Remote I6 Disconnector in off Closed I7 Disconnector in on Closed I8 Unit Protection operated Tripped I9 Alarm 1 I10 Alarm 2 I11 Alarm 3 I12 Not used I13 Not used I14 Not used I15 Not used I16 Not used Output O1 Trip CB O2 Close CB O3 Tripped on fault O4 Trip circuit supervision operated O5 Charging springs failed O6 Control 1 O7 Control 2 09 Control 3 O10 Not used O11 Not used O12 Not used O13 Not used O14 Not used O15 Not used O16 Not used Note: Input and output status can be accessed remotely. rev A1 Page 8 of chneider Electric

9 Momentum Resource Allocation Tables Telecontrol Commands List ignal Details 1 Trip CB 2 Close CB 3 Control 1 4 Control 2 5 Control 3 rev A1 Page 9 of chneider Electric

10 Momentum Control Logic Glossary of ymbols " OR " " AND" " Exclusive OR " X X X Y > 1 Y & Y =1 Z Z Z Ouput =1 if either input X, Y or Z=1 Output =1 if all inputs X, Y and Z=1 Output =1 if only one of the inputs X, Y or Z=1 complement ("NOT") bistable 1 B X R 0 Ouput =1 if input X=0 Output B is set to 1 if input =1, output B is reset to 0 when input R=1. If both input and input R=1, output B is set to 1 "delay on pick-up" "delay on drop-off" X t o X o t delays the pick-up of an item for a time T delays the drop-off of an item for a time T X T X T Logic cheme Navigation Logic scheme. No. 01 prot close inhibit (09:LK3) go to logic scheme no. 9 and LK3 Logic scheme. No. 09 logic scheme no.9 link LK3 trace back to logic scheme no. 01 ref: (09:LK3) LK3:prot close inhibit 01(09:LK3) rev A1 Page 10 of chneider Electric

11 Momentum Control Logic Trip Circuit upervision input I1 CB closed input I2 CB open & > 1 t T1-1 o O4 & Logic scheme. No. 01 Principle This function is designed to monitor the trip circuit and provide an alarm should a failure occur. Failure could be due to a disconnected wire or the trip coil becoming open circuit. An alarm is also raised if the state of the circuit breaker is indicated as neither open nor closed (both input I1 and input I2 inactive), or simultaneously open and closed (both input I1 and input I2 active). The time delay T prevents false indications due to contact discrepancies that occur during normal CB open and close operations. In order for this function to work properly the circuit breaker tripping circuit must be wired as below. Operation trip relay 52 output O1 trip + coil _ Momentum input I1 Momentum input I2 When the function detects a fault Output O4 is activated Ready to close supervision rev A1 Page 11 of chneider Electric

12 Momentum Control Logic Input I14: springs charged Input I3: earth position selected & t o 05 T4 10s Input 1:CB open Logic scheme. No. 05 Principle This function monitors the state of charge of the CB closing springs. The following elements form part of the scheme: prings charge, input I4 Breaker selected ready for earth position, input I3. CB open Timer T2 starts when both inputs = 0 (i.e springs charging) After a pre-set time delay (10 seconds) an alarm is generated. When either condition = 1, i.e. circuit breaker may: be selected in earth position ready to be placed in Earth On mode in service mode with springs fully charged the breker is open Input I4 = 1, signifies the springs are fully charged and ready for operation. If a springs charging motor is not fitted or it is switched off, the springs charge fail alarm will operate following the next circuit breaker close operation. rev A1 Page 12 of chneider Electric