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