Electrical Machines Open circuit test on transformer gives hysteresis loss copper loss both 1and 2 eddy current loss hysteresis loss copper loss both 1and 2 eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately-excited DC generator, running at rated speed, has 6 volts across its armature terminals with no field current. When field winding is excited with one ampere, the voltage builds up to 250 V at no load. In case field current is reduced to zero, with the speed remaining unaltered, the armature terminal voltage would be less than 6 V 6 V more than 6 V zero less than 6 V 6 V more than 6 V zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole DC generator runs at 1500 rpm. The frequency of current in the armature winding is: 50 Hz. 100 Hz. Zero Hz. 25 Hz. 50 Hz. 100 Hz. Zero Hz. 25 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The crawling in the induction motor is caused by high loads low voltage supply improper design of stator laminations harmonics developed in the motor high loads low voltage supply improper design of stator laminations harmonics developed in the motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines There are two 2-pole DC machines. Main field axis of machine A is horizontal and that of B is vertical. It is preferable to purchase none of these machine B any of the two machines machine A none of these machine B any of the two machines machine A ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following are variable losses? shunt field copper loss armature copper loss eddy current loss hysteresis loss shunt field copper loss armature copper loss eddy current loss hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
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