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KARTIK KHUNGER

· started a discussion

· 1 Months ago

140 (Question: 340252.0 )

d

Question:

While starting synchronous motor its field winding should be-

Options:
A)

kept open

B)

connected to a dc source

C)

connected to ac source

D)

kept short circuited

Solution:

Ans:(a) Synchronous motor is started as Induction motor by inserting Damper winding in the Rotor. field winding is kept open, as synchronous motor reaches its speed of near synchronous speed, field winding is excited by required voltage.

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