Physics · Power Systems
What is the primary function of the backup battery bank system in electrical substations?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To provide automatic voltage regulation
- 2To supply power for station emergency lighting only
- 3To provide reliable DC power to operate protective relays and trip/close circuit breakers✓
- 4To increase the internal conductance of measuring instruments
Correct answer
To provide reliable DC power to operate protective relays and trip/close circuit breakers
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