Q1. What are the Abnormal Conditions in power system for which the relay will trip.
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2
Answer:
Opposed voltage principle or balanced voltage principle. The relay time polarity of CTs at the two ends is such that there is no pilot current for the condition of load or external fault. For internal fault, the CTs voltage will no longer be balanced and current will be flow in the relay will trip.
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0
Answer:
Opposed voltage principle or balanced voltage principle. The relay time polarity of CTs at the two ends is such that there is no pilot current for the condition of load or external fault. For internal fault, the CTs voltage will no longer be balanced and current will be flow in the relay will trip
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