An induction motor is fed from a balanced threephase supply at rated voltage and frequency through a bank of three single phase transformers connected in delta-delta. If one unit of the bank develops fault and is removed, then

single phasing will occur and the machine fails to start

single phasing will not occur but the motor terminal voltages will become unbalanced and machine can be loaded to the extent of 57.7% of its rating

machine can be loaded to the extent of 57.7% of its rating with balanced supply at its terminals.

machine can be loaded to the extent of 66.66% with balanced supply at its terminals.

An induction motor is fed from a balanced threephase supply at rated v

1.	An induction motor is fed from a balanced threephase supply at rated voltage and frequency through a bank of three single phase transformers connected in delta-delta. If one unit of the bank develops fault and is removed, then
A.	single phasing will occur and the machine fails to start
B.	single phasing will not occur but the motor terminal voltages will become unbalanced and machine can be loaded to the extent of 57.7% of its rating
C.	machine can be loaded to the extent of 57.7% of its rating with balanced supply at its terminals.
D.	machine can be loaded to the extent of 66.66% with balanced supply at its terminals.
Answer» E.

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An induction motor is fed from a balanced threephase supply at rated voltage and frequency through a bank of three single phase transformers connected in delta-delta. If one unit of the bank develops fault and is removed, then

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