Synchronous Motors The maximum speed variation in a 3 phase synchronous motor is 4 percent 2 percent Zero 10 percent 4 percent 2 percent Zero 10 percent ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short circuit test on synchronous motor is usually about One minute One second One hour None of the listed here One minute One second One hour None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ Normally excited Over-excited Under-excited All of these Normally excited Over-excited Under-excited All of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Windage friction Variable frequency Variable supply frequency Variable load Windage friction Variable frequency Variable supply frequency Variable load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of the synchronous motor has higher values for Both higher and low excitation Higher excitation only Low excitation only None of the listed here Both higher and low excitation Higher excitation only Low excitation only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. Unity 0.8 lagging 0.8 leading 0.5 leading Unity 0.8 lagging 0.8 leading 0.5 leading ANSWER DOWNLOAD EXAMIANS APP