Synchronous Motors A synchronous motor runs at speed ranging from ______ 150 to 1800 rpm 3600 to 6000 rpm None of the listed here 1800 to 3600 rpm 150 to 1800 rpm 3600 to 6000 rpm None of the listed here 1800 to 3600 rpm ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor with large air gap has A higher synchronizing power which makes the machine less sensitive to load variations A higher value of stability limit All of the listed here A small value of inherent regulation A higher synchronizing power which makes the machine less sensitive to load variations A higher value of stability limit All of the listed here A small value of inherent regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value of short-circuit ratio has lower stability limit high stability limit good voltage regulation good speed regulation lower stability limit high stability limit good voltage regulation good speed regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor it the back e.m.f. generated in the armature at noload is approximately equal to the applied voltage, then the torque generated is maximum the motor is said to be fully loaded the excitation is said to be zero per cent the excitation is said to be hundred per cent the torque generated is maximum the motor is said to be fully loaded the excitation is said to be zero per cent the excitation is said to be hundred per cent ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about one second one minute None of these one hour one second one minute None of these one hour ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Leading power factor synchronous motors cost ______ the unity pf motors. About the same as None of the listed here Less than More than About the same as None of the listed here Less than More than ANSWER DOWNLOAD EXAMIANS APP
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