Electrical Machines Voltage regulation can be determined by which of the following? Synchronous impedance method. MMf method. All of these ZPF method. Synchronous impedance method. MMf method. All of these ZPF method. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve starting torque. improve efficiency. improve power factor. reduce copper loss. improve starting torque. improve efficiency. improve power factor. reduce copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous generator is feeding a zero power factor (lagging) load at rated current. The armature reaction is magnetizing. cross – magnetizing. ineffective. demagnetizing. magnetizing. cross – magnetizing. ineffective. demagnetizing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by s2. sf. f / s. sf / 2. s2. sf. f / s. sf / 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which 1 - Φ motor does operate at high power factor? Capacitor start. Shaded pole. Split phase. Capacitor run. Capacitor start. Shaded pole. Split phase. Capacitor run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 20KVA auto transformer, turn ratio is 0.8. Find the power transferred conductively? 0KVA 4KVA 16KVA 20KVA 0KVA 4KVA 16KVA 20KVA ANSWER DOWNLOAD EXAMIANS APP
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