题目内容
When the 3-phase synchronous generator is working under no-load, the armature current is ( ).
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The no-load electromotive force in the armature winding of a synchronous generator is induced by ( ) .
For a 40KVA,400V,50HZ,Y connection marine synchronous generator, if the reading of the power meter on the generator control panel is 16.6KW, the reading of the ampere meter is 60A, then the generator is running at ( ) status.
For a 6-pole, 50 Hz marine diesel engine-generator sets, it nominal rotating speed is ( ).
For low speed diesel engine-generator sets , the rotor is usually adopts ( ), due to its ( ) centrifugal force at high speed.
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