Electrical Engineering · Switchgear and Protection
What is the main function of a circuit breaker in an electrical power system?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To carry nominal load current only
- 2To safely break the circuit under abnormal or fault conditions✓
- 3To continuously increase the circuit current
- 4To reduce the supply voltage level
Correct answer
To safely break the circuit under abnormal or fault conditions
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