Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Supply lines Motor input Dc source Armature input Supply lines Motor input Dc source Armature input ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous capacitor is None of the listed here An ordinary static capacitor bank An over excited synchronous motor driving mechanical load An over excited synchronous motor running without mechanical load None of the listed here An ordinary static capacitor bank An over excited synchronous motor driving mechanical load An over excited synchronous motor running without mechanical load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at unity power factor 0.707 power factor leading 0.707 power factor lagging zero power factor leading unity power factor 0.707 power factor leading 0.707 power factor lagging zero power factor leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is ______ stator voltage. Directly proportional to square of Directly proportional to Invesely proportional to Independent of Directly proportional to square of Directly proportional to Invesely proportional to Independent of ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the maximum power developed depends on all of the following except supply voltage rotor excitation maximum value of coupling angle direction of rotation supply voltage rotor excitation maximum value of coupling angle direction of rotation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on an over-excited or under excited synchronous motor is increased, rate of change of its armature current as compared with that of power factor is twice more less equal twice more less equal ANSWER DOWNLOAD EXAMIANS APP
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