A 4kva 200/400v 50hz single phase transformer gave the following test results

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written 7.8 years ago by

mulugucharan • 50

modified 3.2 years ago by

yashbeer ★ 11k

Test results

OC Test	200v	0.7A	60W (LV Side)
SC Test	9V	6A	6W (HV Side)

Calculate:

i) The efficiency and voltage regulation at full load 0.8pf lagging

ii) The efficiency at half load at unity pf

electrical machines

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