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The standard secondary current rating for a Current Transformer (CT) used in power system protection is usually:

A0.1 A or 0.5 A
B1 A or 5 A
C10 A or 20 A
D100 A

Explanation

Standard protective current transformers in substations are standardized with secondary ratings of either 1 A or 5 A.

Submitted by: mcqstutor Team More Electrical Engineering MCQs →

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