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P521/EN AD/B21

Update Documentation

Page 2/24

MiCOM P521

Document Ref.

Section

Page No.

Description

P521/EN AP/B11

53

MiCOM P521 trip circuit supervision

mechanism

Figure 22 : amended

54

Figure 23 : amended

3.8.1

55

Figure 24 : amended

5.8

74

Unconditional 4 wire pilot

communications for distances

greater than 1.2km (P595)

Note : amended

P521/EN CM/B11

9.3.2

32

Protection comms. fault

Figure 2 : amended

P521/EN MC/B11

2.

3

Definitions

Switch diagram : added to end of section

P521/EN AC/B11

5.1

13

Function of loopback test box

Figure 6 : amended

P521/EN VC/B11

-

-

Hardware/software version history

and compatibility

Updated to reflect latest relay software

Summary of Contents for MiCOM P521

Page 1: ...MiCOM P521 Current Differential Relay Software Version 1 D Update Documentation P521 EN AD B21...

Page 2: ......

Page 3: ...rom the menu description 3 5 4 8 57 58 Inverting of the auxiliary output relays New section added 57 Inputs sub menu Section re numbered was 3 5 4 8 3 5 4 9 58 AUTOMAT CTRL menu description amended 3...

Page 4: ...amended 5 8 74 Unconditional 4 wire pilot communications for distances greater than 1 2km P595 Note amended P521 EN CM B11 9 3 2 32 Protection comms fault Figure 2 amended P521 EN MC B11 2 3 Definiti...

Page 5: ...y illuminated and the watchdog contact will operate If the fault is minor no influence on the protection and automation function e g SCADA communication failure the WARNING LED flashes This will not c...

Page 6: ...ing 8 or 2 and enable your choice using the 5 key Clock Source Ch1 INTERNAL Displays the source of the protection comms clock Select from INTERNAL or EXTERNAL using 8 or 2 and enable your choice using...

Page 7: ...nvert output relay RL7 Select Yes or No 3 5 4 9 Inputs sub menu This sub menu makes it possible to allocate any of the 5 logic inputs to either a label or an automation function The available selectio...

Page 8: ...nu To gain access to the Inputs menu press 2 6 6 times 2 followed by 6 10 times Inputs Heading of the Inputs sub menu To gain access to the sub menu content press 2 Input 1 None Allocation of logic in...

Page 9: ...settings AUTOMAT CTRL Heading of the AUTOMAT CTRL Menu To gain access to the Cold Load PU menu press 2 6 6 times 2 followed by 6 12 times Cold Load PU Heading of the Cold Load PU sub menu To gain acc...

Page 10: ...ct Yes Select No if the user does not wish to associate tIe with the cold load pick up function Validate your choice using 5 Cold Load PU tIe No Associates the Ie time delay threshold with the cold lo...

Page 11: ...r failure sub menu The CB Fail sub menu makes it possible to enable the circuit breaker failure detection function and its associated settings AUTOMAT CTRL Heading of the AUTOMAT CTRL Menu To gain acc...

Page 12: ...s disabled go to CB Open Time menu t Trip Circuit t SUP 200 ms Selects the Trip circuit supervision time Select from 0 1 s to 10s in steps of 10 ms using 8 or 2 and validate your choice using 5 CB Ope...

Page 13: ...on of the summation Amps or square Amps alarm threshold Select from 0 to 4000 E6 A or A2 in steps of 1 E6 using 8 or 2 and validate your choice using 5 n 1 Selection of the type of summation Amps or s...

Page 14: ...dc and 180Vdc Between 19 2Vdc and 300Vdc 25Vac and 300Vac 50 60Hz Between 19 2Vdc and 180Vdc Between 19 2Vdc and 300Vdc Special ENA variants are intended for UK applications which require compliance w...

Page 15: ...th including RS485 RS232 socket SK1 2 0kVrms for one minute between all terminals of each independent circuit grouped together and all other terminals including RS485 RS232 socket SK1 1 0kVrms for one...

Page 16: ...trip circuit failure is generated if the opto input detects no voltage signal for a time longer than the settable timer tSUP AUTOMAT CTRL CB Supervision The 52 Fail contact can be selectively closed i...

Page 17: ...upervision current bypasses the trip coil via the 52b contact thus trip coil supervision is not provided whilst in this condition If the circuit breaker is open a fault in the trip path will only be d...

Page 18: ...485 up to 10 kilometres it is necessary to use the P595 see PZ511 publication AFS 12 05940 1098EN interfacing device at each end of the line To gain maximum performance of the P521 the data rate must...

Page 19: ...REVA T D PZ511 interface except that the P595 has accessible setting switches The switch settings to allow communications between P521 relays can be found in the modem configuration document P521 EN M...

Page 20: ...each of the relays If the protection comms alarm resets then the fault is with the communications link not the relays The relays should assist with diagnosing the location of the fault by indicating...

Page 21: ...Application of P520L loopback test box If the fault is with the active part of the relay withdraw the active part and return it to the factory for repair If the fault is with the communications modul...

Page 22: ...ems protocol converters and line drivers DTE Data Terminal Equipment i e PCs terminals and protection relays Handshaking Confirmation and status signals sent between communicating devices in order to...

Page 23: ...ase in situ If however the fault is on the protection communications card the whole relay including the relay case needs to be sent back for repair The P520 loopback test box facilitates the fault loc...

Page 24: ...trip and close commands from operating simultaneously Modification to summation amps function in order to improve measurement accuracy Correction to fault records to include the magnitude of negative...

Page 25: ...P521 EN AD B21 Update Documentation Page 23 24 MiCOM P521 Relay Software Version 1 1 Setting File Software Version...

Page 26: ...dard 1 E F Current 0 1 40 on A 0 01 8 on B 0 002 1 on C Protection Communication EIA232 A EIA485 B 850nm C 1300nm multi mode D 1300nm single mode E Auxiliary Power Supply Digital Input Voltage 24 60 V...

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Page 28: ...TRANSMISSION DISTRIBUTION Energy Automation Information energy automation information areva td com www areva com Publication P521 EN AD B21...

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