Application Notes
P44x/EN AP/E33
MiCOM P441/P442 & P444
Page 53/220
INP_CR
INP_COS
UNB_CR
UNB_Alarm
0
0
0
0
0
1
1 (Window)
1 (delayed)
1
0
1
0
1
1
0
1 (delayed)
NOTE:
For DEF the logic will used depende upon which settings are enabled:
•
Same channel (shared)
In this case, the DEF channel is the Main Distance channel signal (the scheme & contacts of
carrier received will be identical)
•
Independent channel (2 Different channels) – (2 independent contacts)
2.9.4.4
Inputs
Data Type
Description
INP_CR
Digital input
Distance channel carrier received
INP_CR_DEF
Digital input
DEF channel carrier received
INP_COS
Digital input
Carrier Out of Service - Distance channel
INP_COS_DEF
Digital input
Carrier Out of Service – DEF channel
2.9.4.5
Outputs
Data Type
Description
UNB_CR
internal logic
Internal carrier received – Distance channel
UNB_CR _DEF
internal logic
Internal carrier received – DEF channel
UNB_Alarm
internal logic
Alarm channel Main & DEF
2.9.5
Blocking Schemes BOP Z2 and BOP Z1
The P441, P442 and P444 relays offer two variants of blocking overreach protection
schemes (BOP). With a blocking scheme, the signalling channel is keyed from the reverse
looking zone 4 element, which is used to block fast tripping at the remote line end. Features
are as follows:
•
BOP schemes require only a simplex signalling channel.
•
Reverse looking Zone 4 is used to send a blocking signal to the remote end to prevent
unwanted tripping.
•
When a simplex channel is used, a BOP scheme can easily be applied to a multi-
terminal line provided that outfeed does not occur for any internal faults.
•
The blocking signal is transmitted over a healthy line, and so there are no problems
associated with power line carrier signalling equipment.
•
BOP schemes provides similar resistive coverage to the permissive overreach
schemes.
•
Fast tripping will occur at a strong source line end, for faults along the protected line
section, even if there is weak or zero infeed at the other end of the protected line.
•
If a line terminal is open, fast tripping will still occur for faults along the whole of the
protected line length.
•
If the signalling channel fails to send a blocking signal during a fault, fast tripping will
occur for faults along the whole of the protected line, but also for some faults within
the next line section.
Содержание MiCOM P441
Страница 1: ...MiCOM P441 P442 P444 Numerical Distance Protection VC2 x Technical Guide P44x EN T E44...
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Страница 4: ...P44x EN T E44 Technical Guide Page 2 2 MiCOM P441 P442 P444 BLANK PAGE...
Страница 5: ...Pxxxx EN SS C11 SAFETY SECTION...
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Страница 8: ...Pxxxx EN SS C11 Page 2 10 Safety Section BLANK PAGE...
Страница 17: ...Update Documentation P44x EN AD E44 MiCOM P441 P442 P444 UPDATE DOCUMENTATION VERSION C2 X...
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Страница 22: ...P44x EN AD E44 Update Documentation Page 4 82 MiCOM P441 P442 P444 BLANK PAGE...
Страница 23: ...Update Documentation P44x EN AD E44 MiCOM P441 P442 P444 Page 5 82 P44X EN IT E33 INTRODUCTION...
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Страница 33: ...Update Documentation P44x EN AD E44 MiCOM P441 P442 P444 Page 15 82 P44X EN HW E33 RELAY DESCRIPTION...
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Страница 97: ...Update Documentation P44x EN AD E44 MiCOM P441 P442 P444 Page 79 82 TECHNICAL DATA P44X EN TD E33...
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Страница 101: ...Introduction P44x EN IT E33 MiCOM P441 P442 P444 INTRODUCTION...
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Страница 127: ...Relay Description P44x EN HW E33 MiCOM P441 P442 P444 RELAY DESCRIPTION...
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Страница 152: ...P44x EN HW E33 Relay Description Page 24 44 MiCOM P441 P442 P444 Example isolated AC fault...
Страница 153: ...Relay Description P44x EN HW E33 MiCOM P441 P442 P444 Page 25 44...
Страница 173: ...Application Notes P44x EN AP E33 MiCOM P441 P442 P444 APPLICATION NOTES...
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Страница 395: ...Technical Data P44x EN TD E33 MiCOM P441 P442 P444 TECHNICAL DATA...
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Страница 400: ...P44x EN TD E33 Technical Data Page 4 30 MiCOM P441 P442 P444 BLANK PAGE...
Страница 427: ...Installation P44x EN IN E33 MiCOM P441 P442 P444 INSTALLATION...
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Страница 438: ...P44x EN IN E33 Installation Page 10 10 MiCOM P441 P442 P444 BLANK PAGE...
Страница 439: ...Commissioning P44x EN CM E33 MiCOM P441 P442 P444 COMMISSIONING...
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Страница 494: ...P44x EN CM E33 Commissioning Page 54 54 MiCOM P441 P442 P444 BLANK PAGE...
Страница 495: ...Commissioning Test Record Sheets P44x EN RS E33 MiCOM P441 P442 P444 COMMISSIONING TEST RECORD SHEETS...
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Страница 498: ...P44x EN RS E33 Commissioning Test Record Sheets Page 2 10 MiCOM P441 P442 P444 BLANK PAGE...
Страница 507: ...Connection Diagrams P44x EN CO E33 MiCOM P441 P442 P444 CONNECTION DIAGRAMS...
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Страница 520: ...P44x EN CO E33 Connection Diagrams Page 12 12 MiCOM P441 P442 P444 BLANK PAGE...
Страница 521: ...Courrier Data Base P44x EN GC E44 MiCOM P441 P442 P444 CONFIGURATION MAPPING...
Страница 610: ...Courier Data Base P44x EN GC E44 MiCOM P441 P442 P444 DEFAULT PROGRAMMABLE SCHEME LOGIC PSL...
Страница 615: ...Menu Content Tables P44x EN HI E44 MiCOM P441 P442 P444 MENU CONTENT TABLES...
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