Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ High speed, low output High speed, high output Low speed, high output None of the listed here High speed, low output High speed, high output Low speed, high output None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The construction of a synchronous motor resembles a rotary converter an alternator a series motor an induction motor a rotary converter an alternator a series motor an induction motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short circuit test on synchronous motor is usually about One hour One minute None of the listed here One second One hour One minute None of the listed here One second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ Reduce dc field excitation to zero None of the listed here Change supply frequency Interchange any two stator lines Reduce dc field excitation to zero None of the listed here Change supply frequency Interchange any two stator lines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on an over-excited or under excited synchronous motor is increased, rate of change of its armature current as compared with that of power factor is more equal less twice more equal less twice ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If one phase of a 3 phase synchronous motor is short circuited, motor Will fail to pull into step Will overheat in spots Will not come upto speed Will refused ro start Will fail to pull into step Will overheat in spots Will not come upto speed Will refused ro start ANSWER DOWNLOAD EXAMIANS APP
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