Siemens SIPROTEC 7SJ531 - Page 87

-ETHOD OF OPERATION3*
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31
2
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5% TRIP
5 TRIP
5 TRIP
5 TRIP
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4 "&
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START "&
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ANNUNCIATION
"& BLOCK
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"& ON
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/&&
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4RIP
"& OFF
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BREAKER AUX CONTACT
BREAKER /&&
INTERMEDIATE
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31
2
).4 /2)').  INTERNAL ORIGIN
%84 /2)').  EXTERNAL ORIGIN
#/.42 /2)'  ORIGIN LOCAL CONTROL COMMAND
!58 #/.4  PROCESSING OF CIRCUIT BREAKER AUXILIARY CONTACT
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/&&
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#/.42 /2)').
/&&
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!58 #/.4
/&&
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4
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"& EXT TRIP
"& MAN TRIP
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&.O 
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0ARAMETER
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&IGURE  ,OGIC DIAGRAM OF THE CIRCUIT BREAKER FAILURE PROTECTION
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