Synchronous Motors When a unity pf synchronous motor is operated at a leading pf, it results in _______ 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 Less than rated horsepower output None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ Low speed, high output High speed, low output None of the listed here High speed, high output Low speed, high output High speed, low output None of the listed here High speed, high output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The construction of a synchronous motor ressembles An induction motor A series motor A rotary converter An alternator An induction motor A series motor A rotary converter An alternator ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 85 to 95% 60 to 70% 99 to 99.5% 75 to 80% 85 to 95% 60 to 70% 99 to 99.5% 75 to 80% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then the back e.m.f. will be more than the supply voltage the stator current will be zero the stator current will be very high the stator current will be very small the back e.m.f. will be more than the supply voltage the stator current will be zero the stator current will be very high the stator current will be very small ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor behaves as _____ None of the listed here A capacitor An inductor A resistor None of the listed here A capacitor An inductor A resistor ANSWER DOWNLOAD EXAMIANS APP
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