Electrical Engineering MCQ on Power System Protection
The circuit breaker used in Railway applications is
- Air break
- Bulk oil
- Minimum oil
- SF6
Correct answer: 1. Air break
About Circuit breakers
Circuit breakers are the “final control elements” of the electric power industry, akin to control valves in the process industries. They are strictly on/off devices, used to make and break connections under load in power systems. Circuit breakers automatically open when dangerous circuit conditions are detected. Continue reading here
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