Electrical Machines A 3 - Φ, 6 pole, 50 Hz IM is running at a full load speed of 980 rpm. If it delivers an air gap power of 98000 Watt, calculate the rotor ohmic loss? 1960 Watt. 1800 Watt. 1920 Watt. 980 Watt. 1960 Watt. 1800 Watt. 1920 Watt. 980 Watt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In one 132 / 33 kV transformer the LV resistance is 0.02 per unit. The resistance referred to HV side is 0.02 pu. 0.08 pu. 0.01 pu. 0.16 pu. 0.02 pu. 0.08 pu. 0.01 pu. 0.16 pu. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The crawling in the induction motor is caused by improper design of stator laminations low voltage supply high loads harmonics developed in the motor improper design of stator laminations low voltage supply high loads harmonics developed in the motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine, the armature windings are placed on the rotor because of necessity for electromechanical energy conversion. development of torque. generation of voltage. commutation. electromechanical energy conversion. development of torque. generation of voltage. commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An electric motor with constant output power will have a torque speed characteristics in the form of a Circle about the origin. Straight line parallel to the speed axis. Straight line through the origin. Rectangular hyperbola Circle about the origin. Straight line parallel to the speed axis. Straight line through the origin. Rectangular hyperbola ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The polarity of a DC generator can be reversed by reversing the field current. reversing field electric current as well as direction of rotation. increasing field current. any of above. reversing the field current. reversing field electric current as well as direction of rotation. increasing field current. any of above. ANSWER DOWNLOAD EXAMIANS APP