COREN Electrical
COREN Engineering Practice Exam — Electrical/Electronic Engineering Specialisation (Nigeria)
Electrical Machines ElectromagneticsEnglish
Exam overviewPractice session
A 100 kVA, 11000/400 V, 50 Hz single-phase transformer has a full-load copper loss of 1200 W and an iron loss of 800 W. At what percentage of full-load kVA will the transformer operate at maximum efficiency?
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