Electrical Machines Voltage regulation of transformer is given by (E2 - V2) / E2 (V2 - E2) / E2 (V2 - E2) / V2 (E2 - V2) / V2 (E2 - V2) / E2 (V2 - E2) / E2 (V2 - E2) / V2 (E2 - V2) / V2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series field consists of--------number of turns and ---------- conductors respectively large and thin large and thick less and thin less and thick large and thin large and thick less and thin less and thick 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 variable reluctance motor. switched reluctance motor. DC motor. induction motor. variable reluctance motor. switched reluctance motor. DC motor. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 500 V, 55 kVA single phase alternator has an effective resistance of 0.5 Ω. An excitation current of 10 A produces 200 A armature current on short circuit and an emf of 450 V on per circuit. The synchronous reactance will be 2.241 Ω. 2.74 Ω. 2.781 Ω. 25.564 Ω. 2.241 Ω. 2.74 Ω. 2.781 Ω. 25.564 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A generator may loose residual magnetism due to vibrations. over excitation. any of these. heating. vibrations. over excitation. any of these. heating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous generator with constant steam input supplies power to an infinite bus at a lagging power factor. If the excitation is increased both power angle and power factor increase both power angle and power factor decrease power angle decrease and power factor increase power angle increase and power factor decrease both power angle and power factor increase both power angle and power factor decrease power angle decrease and power factor increase power angle increase and power factor decrease ANSWER DOWNLOAD EXAMIANS APP
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