Electrical Machines We can apply source transformation to voltage source when a resistance is connected to it in 14 HP. 10 HP. 13 HP. 15 HP. 14 HP. 10 HP. 13 HP. 15 HP. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The inertia constant H of a synchronous condenser is greater than that of hydro generator. equal to that of the effective length of the line. none of these. greater than that of turbo alternator. greater than that of hydro generator. equal to that of the effective length of the line. none of these. greater than that of turbo alternator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called harmonics. cogging. crawling. resonance. harmonics. cogging. crawling. resonance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Considering a galvanometer is connected to the rotor of a 3 - Φ, 4 pole, 50 Hz IM and is making 130 oscillations in a minute, then calculate the rotor speed? 1440. 1500. 1450. 1435. 1440. 1500. 1450. 1435. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the supply terminal of a DC shunt motor are interchanged The motor will stop. The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The direction of rotation will reverse. The motor will stop. The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The direction of rotation will reverse. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2 A armature current at no-load, when the armature current is changed to 20 A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 1130 r.p.m. none of above. 1037.5 r.p.m. 4575.4 r.p.m. 1130 r.p.m. none of above. 1037.5 r.p.m. 4575.4 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
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