Electrical Machines A slip ring Induction motor runs at 290 rpm at full load, when connected to 50 Hz supply. Determine the number of poles and slip. P = 50, s = 4.43 %. P = 60, s = 0.96 %. P = 40, s = 5.79 %. P = 20, s = 3.33 %. P = 50, s = 4.43 %. P = 60, s = 0.96 %. P = 40, s = 5.79 %. P = 20, s = 3.33 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the excitation of normally operating unloaded, salient pole synchronous motor suddenly gets disconnected, it continues to run as a switched reluctance motor. variable reluctance motor. DC motor. induction motor. switched reluctance motor. variable reluctance motor. DC motor. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reluctance and hysteresis motors are the types of which electrical motor? 1 - Φ synchronous motor. DC motor. Stepper motor. 3 - Φ induction motor. 1 - Φ synchronous motor. DC motor. Stepper motor. 3 - Φ induction motor. 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 any of the above 66.67 MW and 33.33 MW respectively 50 MW and 50 MW respectively 33.33 MW and 66.67 MW respectively any of the above 66.67 MW and 33.33 MW respectively 50 MW and 50 MW respectively 33.33 MW and 66.67 MW respectively ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator the actual flux distribution depends upon clearance between tips of the adjacent pole shoes. all of above. shape of the pole shoe. size of air gap. clearance between tips of the adjacent pole shoes. all of above. shape of the pole shoe. size of air gap. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor has which of the following characteristics? Has its field winding consinting of thick wire and less no of turns. Has a almost constant speed. Has a poor torque. Can be started easily without load. Has its field winding consinting of thick wire and less no of turns. Has a almost constant speed. Has a poor torque. Can be started easily without load. ANSWER DOWNLOAD EXAMIANS APP
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