What protection is provided by a Reverse Power Relay (32) on a marine HV generator?
Direct Answer
Option C: Trips generator breaker if electrical power flows BACK into generator (motoring the prime mover)
Reverse Power Relays (32) detect when a generator acts as a motor, drawing active power from the busbar. This occurs if the prime mover fails while the breaker remains closed. The relay trips the generator circuit breaker to prevent mechanical damage to the engine and maintain overall system stability.
All Options
Detailed Explanation & Context
Reverse Power Relays (32) detect when a generator acts as a motor, drawing active power from the busbar. This occurs if the prime mover fails while the breaker remains closed. The relay trips the generator circuit breaker to prevent mechanical damage to the engine and maintain overall system stability.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).
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