Two transformers are connected in parallel. These transformers do not have equal percentage impedance. This is likely to result in____________?
Correct answer: D. loading of the transformers not in proportion to their kVA ratings
- A. short-circuiting of the secondaries
- B. power factor of one of the transformers is leading while that of the other lagging
- C. transformers having higher copper losses will have negligible core losses
- D. loading of the transformers not in proportion to their kVA ratings
Explanation
When parallel transformers have unequal percentage impedances, the lower-impedance transformer takes a greater share of the load. Therefore, their loading is not proportional to their kVA ratings.
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