Electrical Machines Under which of the following conditions hunting of synchronous motor is likely to occur ? Periodic variation of load. Over-loading for long period. Over-excitation. Small and constant load. Periodic variation of load. Over-loading for long period. Over-excitation. Small and constant load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor when the rotor speed exceeds the synchronous speed during hunting negative sequence currents are generated. the damper bars develop induction generator torque. the damper bars develop induction motor torque. the damper bars develop synchronous motor torque. negative sequence currents are generated. the damper bars develop induction generator torque. the damper bars develop induction motor torque. the damper bars develop synchronous motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which is the arrangement of windings in a core type single phase transformer? Sandwiched lv and hv discs 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 Half hv inside and half lv outside on each core limb Sandwiched lv and hv discs 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 Half hv inside and half lv outside on each core limb ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field connection of a DC Shunt Motor is changed then motor will not run. it will run in same direction by slowly. it will run in opposite direction. it will run in same direction. motor will not run. it will run in same direction by slowly. it will run in opposite direction. it will run in same direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If we increase the rotor reactance value, the maximum torque will None of these decrease increase not changed None of these decrease increase not changed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two DC generators having equal open-circuit emfs but slight different load characteristics are operating in parallel, then None of these the machine with more drooping characteristic will supply less load. the machine will share load equally. the machine with more drooping characteristic will supply more load. None of these the machine with more drooping characteristic will supply less load. the machine will share load equally. the machine with more drooping characteristic will supply more load. ANSWER DOWNLOAD EXAMIANS APP
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