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- Q536 - Electrical, Electronic, & Control Engineering
308. In accordance with 46 CFR, Subchapter J (Electrical Engineering), each diesel engine driven generator prime mover must have an over speed device, independent of the normal operating governor. If in testing the over speed device, what should be the trip point setting in terms of rated speed?
46 CFR Subchapter J requires diesel generator prime movers to have an overspeed device that trips no later than 15% above rated speed to prevent mechanical damage and loss of control in the event of governor failure.
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