Synchronous Motors When a unity pf synchronous motor is operated at a leading pf, it results in _______ More than rated horseppwer output More than rated rotor current None of the listed here Less than rated horsepower output More than rated horseppwer output More than rated rotor current None of the listed here Less than rated horsepower output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ Is at standstill None of the listed here Approches half synchronous speed Approches synchronous speed Is at standstill None of the listed here Approches half synchronous speed Approches synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor runs at synchronous speed, the voltage induced in the damper winding is _____ Maximum None of the listed here minimum Zero Maximum None of the listed here minimum Zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor can be changed by varying _______ Supply frequency None of the listed here Field excitation Mechanical load Supply frequency None of the listed here Field excitation Mechanical load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If a synchronous motor is operating at a supply frequency of 50 cycles/second, then, rotor revolves at ______ 100 cycles/second 50 cycles/second 25 cycles/ second None of the listed here 100 cycles/second 50 cycles/second 25 cycles/ second None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS