Electrical Machines In one 132 / 33 kV transformer the LV resistance is 0.02 per unit. The resistance referred to HV side is 0.16 pu. 0.01 pu. 0.02 pu. 0.08 pu. 0.16 pu. 0.01 pu. 0.02 pu. 0.08 pu. 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. What is the operating frequency, if the load is 600 MW? 48 Hz 48.5 Hz 50 Hz 45 HZ 48 Hz 48.5 Hz 50 Hz 45 HZ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor hunting can be reduced to minimum possible by using a flywheel. providing damper winding in the rotor pole faces. any of above methods. designing the motor for adequate synchronizing power. using a flywheel. providing damper winding in the rotor pole faces. any of above methods. designing the motor for adequate synchronizing power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slight curvature at the lower end of the OCC of a self excited DC generator is due to residual flux. high speed. high field resistance. magnetic inertia. residual flux. high speed. high field resistance. magnetic inertia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit test on transformer gives hysteresis loss eddy current loss both 1and 2 copper loss hysteresis loss eddy current loss both 1and 2 copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When an electric train is moving down a hill, the DC motor will operate as DC series generator. DC shunt motor. DC shunt generator. DC series motor. DC series generator. DC shunt motor. DC shunt generator. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
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