Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 0.3. 0.7. 1. 0.54. 0.3. 0.7. 1. 0.54. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit test on transformer gives both 1and 2 copper loss eddy current loss hysteresis loss both 1and 2 copper loss eddy current loss hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator, when driven without any excitation, showed an open circuit voltage of 12 V. When the field winding was excited, the voltage dropped to zero. It happened because there was a break in the armature circuit there was no residual magnetism in the field circuit field resistance was higher than critical resistance field winding was wrongly connected there was a break in the armature circuit there was no residual magnetism in the field circuit field resistance was higher than critical resistance field winding was wrongly connected ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC compound motor the field regulator is provided to limit the armature current. control the armature flux. control the field flux. demagnetize the field partially. limit the armature current. control the armature flux. control the field flux. demagnetize the field partially. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has a rotor resistance of 0.002 Ω / phase. If the resistance is increased to 0.004 Ω / phase then the maximum torque will remain unaltered reduced to half increase by 200% increase by 100% remain unaltered reduced to half increase by 200% increase by 100% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct axis reactance is defined as the ratio of Vmin to Imin Vmax to Imin Vmin to Imax Vmax to Imax Vmin to Imin Vmax to Imin Vmin to Imax Vmax to Imax ANSWER DOWNLOAD EXAMIANS APP
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