During short circuit test iron losses are negligible because of _____________?
Correct answer: C. the voltage applied on primary side is low
- A. the current on secondary side is negligible
- B. the voltage on secondary side does not vary
- C. the voltage applied on primary side is low
- D. full-load current is not supplied to the transformer
Explanation
In the short-circuit test, only a small primary voltage is needed to circulate rated current because the winding impedance is low. This produces very little core flux, making iron loss negligible.
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