Electrical Machines In a 3-phase induction motor, if the supply voltage and frequency are reduced by the same ratio, then slip at which maximum torque occurs is less and maximum torque decreases more and maximum torque remains constant less and maximum torque increases more and maximum torque decreases less and maximum torque decreases more and maximum torque remains constant less and maximum torque increases more and maximum torque decreases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Normally for the design of transformer the ambient temperature is taken as 45°C. 35°C. 27°C. 32°C. 45°C. 35°C. 27°C. 32°C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous condensers are used to reduce hunting improve the power factor improve starting torque All of these reduce hunting improve the power factor improve starting torque All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the operating region of slip in a 1-phase induction motor? 0 < S < 2 -1 < S < 1 -2 < S < 2 0 < S < 1 0 < S < 2 -1 < S < 1 -2 < S < 2 0 < S < 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a fault at the terminal of a synchronous generator, the fault current is maximum for a 3 - phase fault. line to line fault. line to ground fault. 3 - phase to ground fault. 3 - phase fault. line to line fault. line to ground fault. 3 - phase to ground fault. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For same HP rating and full load speed which of following motor has poor starting torque? Differently compounded. Shunt. Series. Cummulative compound. Differently compounded. Shunt. Series. Cummulative compound. ANSWER DOWNLOAD EXAMIANS APP
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