Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be unity lagging zero leading unity lagging zero leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a 3-phase synchronous motor, the negative phase sequence exists when the motor is under-loaded over-loaded supplied with unbalanced voltage None of these under-loaded over-loaded supplied with unbalanced voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. None of the listed here Unity 0.8 leading 0.8 lagging None of the listed here Unity 0.8 leading 0.8 lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be used as a synchronous capacitor when it is Under loaded Under excited Over loaded Over excited Under loaded Under excited Over loaded Over excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a unity pf synchronous motor is operated at a leading pf, it results in _______ Less than rated horsepower output None of the listed here More than rated rotor current More than rated horseppwer output Less than rated horsepower output None of the listed here More than rated rotor current More than rated horseppwer output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that None of these its speed is independent of supply frequency its speed may be controlled more easily its power factor may be varied at will None of these its speed is independent of supply frequency its speed may be controlled more easily its power factor may be varied at will ANSWER DOWNLOAD EXAMIANS APP
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