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  1. Plum_Point1

    MV Motor Runs Uncoupled, Locked Rotor Fault When Coupled

    We have a Siemens 1750 HP 3600 RMP 4000V motor that is used on an air compressor. We recently had the windings replaced. All motor shop test results looked fine. We got the motor back, done an uncoupled run to identify magnetic center, aligned and coupled the motor. We get a "locked rotor fault"...

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