Electrical Machines The power developed by salient pole synchronous machine is/are excitation power only None of these power due to saliency or reluctance only both 1 and 2 excitation power only None of these power due to saliency or reluctance only both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two single-phase alternators operating in parallel have induced EMFs on open circuit of 230∠0° and 230∠10° volts and respective reactance of j2 Ω j3 Ω calculate the terminal voltage 200 V. 300 V. 223.V. 150 V. 200 V. 300 V. 223.V. 150 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 100 KVA transformer is operating at 60 Hz, 240 V supply. The same transformer is operating at 50 Hz, 200 V supply. The new rating is 100 KVA 123.3 KVA 50 KVA 83.33 KVA 100 KVA 123.3 KVA 50 KVA 83.33 KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 400 / 200 V, Y - Y connected wound rotor induction motor has 0.06 Ω rotor resistance and 0.3 Ω standstill reactance per phase. To make the starting torque equal to maximum torque of the motor the additional resistance required 0.45 Ω. 0.78 Ω. 0.24 Ω. 0.66 Ω. 0.45 Ω. 0.78 Ω. 0.24 Ω. 0.66 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? None of these pure resistive load pure capacitive load pure inductive load None of these pure resistive load pure capacitive load pure inductive load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature flux armature mmf armature current All of these armature flux armature mmf armature current All of these ANSWER DOWNLOAD EXAMIANS APP
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