Why are isolators installed on the supply side of circuit breakers in power systems?

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Physics · Switchgear and Protection

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

To isolate the circuit breaker from live parts during maintenance

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Answer 1

To automatically trip the circuit during overload conditions

Answer 2

To interrupt high fault currents during short circuits

Answer 3

To isolate the circuit breaker from live parts during maintenance

Answer 4

To improve voltage regulation across the circuit breaker

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