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Answer :

The full-load copper loss of a trans¬former is 1600 W. At half-load, the copper loss will be 400 W.

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Description : Full load copper loss in a transformer is 1600 watts. At half load the copper loss will be: A) 6400 watt B) 1600 watt C) 800 watt D) 400 watt

Answer :  Full load cupper loss in a transformer is 1600 watts. At half load the cupper loss will be: 400 watt

Description : At full -load of a transformer, the iron loss and copper loss are 3000 W and 4000 W respectively. Then total loss at maximum efficiency is :  (A) 7000 W (B) 6000 W (C) 8000 W (D) 4000 W

Answer : At full -load of a transformer, the iron loss and copper loss are 3000 W and 4000 W respectively. Then total loss at maximum efficiency is : 6000 W

Description : A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is

Answer : A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is 0.707

Description : 73 The full load copper loss of a transformer is 1600W. At half-load the copper loss will be A. 6400W B. 1600W C. 800W D. 400W

Answer : D. 400W

Description : In an actual transformer the iron loss remains practically constant from no load to full load because?

Answer : In an actual transformer the iron loss remains practically constant from no load to full load because core flux remains practically constant.