Question

A 10 KVA, 500/250V,single phase transformer has its maximum efficiency of 94% when delivering 90%of its rated output at unity p.t. Estimate its efficiency when delivering its full load output at p.t. of 0.8 lagging.
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Answer 1

Answer:

A 10 KVA, 500/250V,single phase transformer has its maximum efficiency of 94% when delivering 90%of its rated output at unity p.t. Estimate its efficiency when delivering its full load output at p.t. of 0.8 lagging.

Answer 2

Explanation:

A 10 kVA, 500/250 V, single phase transformer has its

maximum efficiency of 94% when delivering 90% of

its rated output at unity p.t. Estimate its efficiency when

delivering its full load output at p.t. of 0.8 lagging.