While remotely investigating the condition of a normally-open 480 VAC motor control center (MCC) feeder breaker, an operator observes the following indications:
Green breaker position indicating light is out.
Red breaker position indicating light is lit.
MCC voltmeter indicates 480 VAC.
MCC ammeter indicates zero amperes.
Based on these indications, the operator should report that the feeder breaker is __________ and racked __________.
A. open; in
B. closed; in
C. open; to an unknown position
D. closed; to an unknown position
Show Answer
Answer: B
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