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GCC Factories Plant Engineering Exam Practice Questions - GCC Factories Engineer - Plant Engineering Examination (South Africa) Exam

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A 1000 kVA power transformer has a core (iron) loss of 3.0 kW and a full-load copper loss of 12.0 kW. At what load (in kVA) will the transformer achieve its maximum efficiency?
Correct Answer:
500 kVA

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