What is the function of a surge arrestor connected to HV generator terminals?
Direct Answer
Option C: Divert high-voltage switching surges and lightning spikes safely to ground
Surge arrestors are critical protective devices that clamp transient overvoltages, such as those caused by lightning strikes or switching operations, and divert them safely to the hull ground. By limiting these voltage spikes, they protect the sensitive insulation of HV generator windings from dielectric breakdown, adhering to IEC 60092 protection requirements.
All Options
Detailed Explanation & Context
Surge arrestors are critical protective devices that clamp transient overvoltages, such as those caused by lightning strikes or switching operations, and divert them safely to the hull ground. By limiting these voltage spikes, they protect the sensitive insulation of HV generator windings from dielectric breakdown, adhering to IEC 60092 protection requirements.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).
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