Electrical Machines The material used for commutator brushes is mostly cast iron. copper. mica. carbon. cast iron. copper. mica. carbon. 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 motor torque. the damper bars develop induction generator torque. the damper bars develop synchronous motor torque. negative sequence currents are generated. the damper bars develop induction motor torque. the damper bars develop induction generator torque. the damper bars develop synchronous motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The frame of an induction motor is made of stainless steel. silicon steel. aluminium. closed grained cast iron. stainless steel. silicon steel. aluminium. closed grained cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For an ideal transformer the winding should have no ohmic resistance on either side maximum resistance on primary side and least resistance on secondary side minimum resistance on primary side and maximum resistance on secondary side equal resistance on primary and secondary side no ohmic resistance on either side maximum resistance on primary side and least resistance on secondary side minimum resistance on primary side and maximum resistance on secondary side equal resistance on primary and secondary side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two generators operating in parallel with rating 50MW and 100MW respectively. Both their respective governor settings are identical as 4%, consider same no load frequency. How will the machine share a common load of 100 MW 66.67 MW and 33.33 MW respectively 33.33 MW and 66.67 MW respectively any of the above 50 MW and 50 MW respectively 66.67 MW and 33.33 MW respectively 33.33 MW and 66.67 MW respectively any of the above 50 MW and 50 MW respectively ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Regenerative braking is not found in which motor? DC shunt. Induction motor. DC series. DC compound. DC shunt. Induction motor. DC series. DC compound. ANSWER DOWNLOAD EXAMIANS APP
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