A 3 phase star connected winding is fed from symmetrical 3 phase supply with their neutrals connected together. If one of the 3 supply lines gets disconnected, then the revolving MMF wave will have a ___________

Constant amplitude but sub synchronous speed

Varying amplitude but synchronous speed

Constant amplitude but super synchronous speed

Varying speed and a speed fluctuating around the synchronous speed

A 3 phase star connected winding is fed from symmetrical 3 phase suppl

1.	A 3 phase star connected winding is fed from symmetrical 3 phase supply with their neutrals connected together. If one of the 3 supply lines gets disconnected, then the revolving MMF wave will have a ___________
A.	Constant amplitude but sub synchronous speed
B.	Varying amplitude but synchronous speed
C.	Constant amplitude but super synchronous speed
D.	Varying speed and a speed fluctuating around the synchronous speed
Answer» E.

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