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Siemens SIPROTEC 7SJ531 - Page 84

Siemens SIPROTEC 7SJ531
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-ETHOD OF OPERATION3*
6
#
' #

3*
3*
4RIP CIRCUIT
FAILURE
,
,
")
42
#,/3%
42)0
4#
42 4RIP RELAY OF 3*
OR ANY OTHER PROTECTION RELAY
") "INARY INPUT OF 3*
4# #IRCUIT BREAKER TRIP COIL
!UX #" AUXILIARY CONTACTS
2 2EPLACEMENT RESISTOR FOR ")
5
CV
#ONTROL VOLTAGE
") ,
&AILURE
4RIP CIRCUIT
( (
&IGURE  0RINCIPLE OF TRIP CIRCUIT SUPERVISION WITH ONE BINARY INPUT
N
N NUMBER OF REPEATED STATUS CHECKS
#" AUXILIARY CONTACTS ILLUSTRATED
FOR CLOSED BREAKER
5
CV
!UX
!UX
2
#"
OR ANY OTHER
PROTECTION RELAY
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