1. 414 Volt, 60 Hz, 600 hp, 0.6 pf-leading, four-pole triangle connected synchronous motor has 0.9Ω...

1. 414 Volt, 60 Hz, 600 hp, 0.6 pf-leading, four-pole triangle connected synchronous motor has 0.9Ω synchronous reactance. Friction; wind; core losses and armature resistance are neglected.
a) If the motor is operating under magnitude of phase current (ia) 234 Ampere and power factor of 0.6 lagging,
1. Find the input power of motor in hp (10p)
2. Find the generated voltage, EA (10p)
3. Find the torque and the maximum inducible torque in current state. (10p)
b) If EA is increased by 18% find,
1. Magnitude of new armature current (ia), (10p)
2. New power factor of motor. (10p)
(X is the last two digits of your student number × 2. For example: If student number is 20-156-120, X=54. Motor voltage is found 360+(54*2) = 468V.)
(Please use at least 4 digits after decimal point in your calculations. Otherwise, there may be problems about exact answers.)

Expert Solution

Manojponduru answered 1 year ago

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