Application Notes
P44x/EN AP/E33
MiCOM P441/P442 & P444
Page 83/220
Note that the elements are set in terms of residual current, which is three times the
magnitude of zero sequence current (Ires = 3I
0
). The IDMT time delay characteristics
available for the IN>1 element, and the grading principles used will be as per the phase fault
overcurrent elements.
To maintain protection during periods of VTS detected failure, the relay allows an IN> Time
Delay VTS to be applied to the IN>1 and IN>2 elements. On VTS pickup, both elements are
forced to have non-directional operation, and are subject to their revised definite time delay.
P0490ENa
Directional
Calculation
VN
V2
I2
IN
IN
IN>
SBEF Fwd
SBEF Rev
IN> Pick-up
IN> Pick-up
Any Pole Dead
CTS Blocking
&
IN> Timer Block
IN> Trip
IDMT/DT
IN> Pick-up
Any Pole Dead
CTS Blocking
&
IN> Timer Block
IN> Trip
SBEF Fwd
SBEF Rev
Directionnal
Check
MCB/VTS Line
&
&
&
IN> TD VTS
0
>1
IDMT/DT
Negative sequence
Polarisation
Residual zero
sequence Polarisation
FIGURE 44 - SBEF CALCULATION & LOGIC
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 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 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 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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