A 400V, 50 Hz , 80 hp eight pole Δ connected synchronous motor has a reactance...

A 400V, 50 Hz , 80 hp eight pole Δ connected synchronous motor has a reactance of 0.6 and negligible armature resistance. Its friction, windage and core losses are 1.2KW, 0.5KW and 1KW respectively .

What is the speed of this motor?
If this motor is initially supplying rated hp at 0.82 PF lagging . What are the magnitudes and angles of ?
What is the power factor of the motor?
How much induced torque and load torque is produced by this motor ?
If is increased by 30 percent ,what is the new magnitude of the armature current?
What is the motor’s new power factor?

Solutions

Expert Solution

Some words are missed so that solved both phase and line currents... Verify both

Manojponduru answered 1 month ago

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