Electrical Machines In salient pole synchronous machine, if direct axis reactance and quadrature axis reactance is equal, then power developed due to reluctance is infinite value any of the above zero maximum infinite value any of the above zero maximum ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulation method is accurate ? American standard association method MMf method Synchronous impedance method ZPF method American standard association method MMf method Synchronous impedance method ZPF method ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The results of a slip test for determining direct axis (Xd) and quadrature axis (Xq) reactances of a star connected salient pole alternator are given below Phase values: Vmax = 108 V ; Vmin = 96 V Imax = 12 A ; Imin = 10 A Hence the two reactances will be Xd = 10.8Ω and Xq = 8Ω Xd = 9.6Ω and Xq = 9Ω Xd = 9Ω and Xq = 9.6Ω Xd = 8Ω and Xq = 10.8Ω Xd = 10.8Ω and Xq = 8Ω Xd = 9.6Ω and Xq = 9Ω Xd = 9Ω and Xq = 9.6Ω Xd = 8Ω and Xq = 10.8Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Crawling in an induction motor is due to time harmonics in supply. slip ring rotor. space harmonics produced by winding currents. insufficient starting torque. time harmonics in supply. slip ring rotor. space harmonics produced by winding currents. insufficient starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following components of a DC generator plays vital role for providing direct electric current of a DC generator? Commutator. Equalizer rings. Dummy coils. Eye bolt. Commutator. Equalizer rings. Dummy coils. Eye bolt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High starting torque and low starting current is the advantage of stepper motor. slip ring induction motor. hysteresis motor. squirrel cage induction motor. stepper motor. slip ring induction motor. hysteresis motor. squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
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