Three Phase Induction Motors If a 3 phase induction motor is running at a slip S, then approximate efficiency of the motor is ______ None of the listed here S-1 1+S 1-S None of the listed here S-1 1+S 1-S ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In induction motor, percentage slip depends on Supply frequency Supply voltage Copper losses in motor None of these Supply frequency Supply voltage Copper losses in motor None of these ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is ________ Very costly Essentially a constant speed motor Not easily maintainable A variable speed motor Very costly Essentially a constant speed motor Not easily maintainable A variable speed motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Less maintenance troubles are experienced in terms of None of the listed here Both squirrel cage and slip ring Slip ring induction motor Squirrel cage induction motor None of the listed here Both squirrel cage and slip ring Slip ring induction motor Squirrel cage induction motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have Zero frequency The same phase as the rotor e.m.f. High value for the satisfactory speed control The same frequency as the slip frequency Zero frequency The same phase as the rotor e.m.f. High value for the satisfactory speed control The same frequency as the slip frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When the rotor of a 3-phase induction motor is blocked, the slip is _____ 1 0.1 0 0.5 1 0.1 0 0.5 ANSWER DOWNLOAD EXAMIANS APP
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