Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 250 rpm 2000 rpm 1000 rpm 500 rpm 250 rpm 2000 rpm 1000 rpm 500 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would be 12.5% remain unchanged be more than 10% be less than 10% be 12.5% remain unchanged be more than 10% be less than 10% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following rotor requires damper winding? Both type rotor. None of these Salient pole rotor. Cylindrical rotor. Both type rotor. None of these Salient pole rotor. Cylindrical rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which is the arrangement of windings in a core type single phase transformer? Half lv inside and half hv outside on each core limb Sandwiched lv and hv discs on each core limb Half hv inside and half lv outside on each core limb Lv on one core limb and hv on the other Half lv inside and half hv outside on each core limb Sandwiched lv and hv discs on each core limb Half hv inside and half lv outside on each core limb Lv on one core limb and hv on the other ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt motor has external resistance Ra and Rf in the armature and field circuits respectively. Armature current at starting can be reduced by keeping Ra maximum and Rf minimum Ra minimum and Rf minimum Rf maximum and Ra minimum Ra maximum and Rf maximum Ra maximum and Rf minimum Ra minimum and Rf minimum Rf maximum and Ra minimum Ra maximum and Rf maximum ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During hunting of a synchronous motor harmonic are developed in the armature circuit. damper bar develops torque. negative phase sequence currents are generated. field excitation increases. harmonic are developed in the armature circuit. damper bar develops torque. negative phase sequence currents are generated. field excitation increases. ANSWER DOWNLOAD EXAMIANS APP
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