P44x/EN CM/E33
Commissioning
Page 24/54
MiCOM P441/P442 & P444
5.3.1.2
Default simulation principle
To simulate a single-phase fault
The distance protection detects a single-phase default in E if the impedance and phase of
this point place it inside the characteristic. The relation of impedance and phase with the
voltage and current injected is as follows :
−
Fault Impedance Z = Vphase/Iphase ;
−
Fault Phase • = phase-shift(Vphase, Iphase) ;
−
The Vphase voltage has to remain lower than the rated voltage value
Test of the impedance for zone 1 :
I1 =
1A
ϕ
1
= line angle = 76°
V1
I1
= Zfault = Zd (1 + k0) + Rfault
Rfault = R loop
Distance X
Resistance R
Xlim
Rlim
E
ϕ
Z
-Rlim
P3017ENa
FIGURE 8 - CHARACTERISTIC’S POINT DETERMINATION
(RLIM BIPHASE & SINGLEPHASE CAN BE DIFFERENT)
The angle of Characteristic is:
•
For phase to phase: Argument of the positive impedance of the line (Z1)
•
For phase to ground : Argument of 2Z1+Z0
Characteristic of the relay can be created and displayed with Zgraph (MiCOM Zgraph
software is a tool delivered with the protection – available in the CD-ROM "MiCOM P440
User " ) – see the "test tools"
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 5: ...Pxxxx EN SS C11 SAFETY SECTION...
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Страница 17: ...Update Documentation P44x EN AD E44 MiCOM P441 P442 P444 UPDATE DOCUMENTATION VERSION C2 X...
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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...
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Страница 395: ...Technical Data P44x EN TD E33 MiCOM P441 P442 P444 TECHNICAL DATA...
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Страница 427: ...Installation P44x EN IN E33 MiCOM P441 P442 P444 INSTALLATION...
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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 507: ...Connection Diagrams P44x EN CO E33 MiCOM P441 P442 P444 CONNECTION DIAGRAMS...
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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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