Physics · Switchgear and Protection
What is the main purpose of a circuit breaker in an electrical substation?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To improve power quality by compensating reactive power
- 2To convert alternating current into direct current
- 3To safely interrupt and stop the flow of electricity during a fault or overload condition✓
- 4To step down high voltage electricity for domestic transmission
Correct answer
To safely interrupt and stop the flow of electricity during a fault or overload condition
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