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CHAPTER 5: SETTINGS
CONTROL ELEMENTS
B30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
5-243
5
BKR 1 ARC AMP DELAY
— This setting is used to program the delay interval between the time the tripping sequence is
initiated and the time the breaker contacts are expected to part, starting the integration of the measured current.
BKR 1 ARC AMP LIMIT
— Selects the threshold value above which the output operand is set.
BKR 1 CLR ARC AMPS
— Selects a FLexLogic Operand to clear the accumulated I
2
t values (kA
2
-cycle), reset fault duration
items (breaker operating time), clear ARCING AMPS (kA
2
-cycle) and AMP MAX (kA) values of the last event.
BKR 1 INTERUPTION RATING
— This setting specifies the maximum symmetrical interruption rating of the circuit breaker.
Figure 5-130: Arcing current measurement
Summary of Contents for b30
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Page 486: ...5 278 B30 BUS DIFFERENTIAL SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 5 SETTINGS 5 ...
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