LOADING
Question

Two alternators A and B are sharing the inductive load equally. What will happen when the excitation of A is increased?

A.

Current delivered by A will increase and of B will decrease

B.

Current of A will decrease and of B will increase

C.

Both will continue to share the load equally

D.

None of the above

Answer ( Option A)

Current delivered by A will increase and of B will decrease

Solution

This is the case of parallel operation of alternators.

When the excitation of generatorA is increased, then the excitation voltage of A will also increase, which leads to increase in current IA and decrease in current IB to maintain the load current constant.

Hence, the correct option is (A).

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