Electrical Machines In case of a compensated DC series motor, the compensating winding is provided In series with the armature winding. In parallel with the armature winding. As a separate unit. In parallel with the field winding. In series with the armature winding. In parallel with the armature winding. As a separate unit. In parallel with the field winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. How will the machine share, if the load is 600 MW? 230.7 MW and 369.23 MW respectively generator 1 gets over load 200 MW and 400MW respectively generator 2 gets over load 230.7 MW and 369.23 MW respectively generator 1 gets over load 200 MW and 400MW respectively generator 2 gets over load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp? 30 V. 60 V. 40 V. 90 V. 30 V. 60 V. 40 V. 90 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hunting phenomenon is observed in which motor? Induction motor. DC motor. Both A and C. Synchronous motor. Induction motor. DC motor. Both A and C. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor especially the cage rotors slots are nearly parallel to shaft axis. This is called crawling. cogging. slip. skewing. crawling. cogging. slip. skewing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To control the speed of an induction motor, the supply frequency is reduced by 10%. For the same magnetizing current to remain constant, the supply voltage must be reduced by 20% reduced by 10% increased by 10% increased by 20% reduced by 20% reduced by 10% increased by 10% increased by 20% ANSWER DOWNLOAD EXAMIANS APP
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