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W1 : 250 V, 10 A, Low Power Factor.
W2 : 250 V, 5 A, Low Power Factor.
W3 : 150 V, 10 A, High Power Factor.
W4 : 150 V, 5 A, High Power Factor.
The wattmeters used in open-circuit test and short-circuit test of the transformer will respectively be, Options are ⇒ (A) W1 and W2, (B) W2 and W4, (C) W1 and W4, (D) W2 and W3, (E) , Leave your comments or Download question paper.
It is desired to measure parameters of 230 V/115 V, 2 kVA,
single-phase transformer. The following wattmeters are available
in a laboratory: W1 : 250 V, 10 A, Low Power Factor. W2 : 250 V, 5 A, Low Power Factor. W3 : 150 V, 10 A, High Power Factor. W4 : 150 V, 5 A, High Power Factor. The wattmeters used in open-circuit test and short-circuit test of the transformer will respectively be | |
A. | W1 and W2 [Wrong Answer] |
B. | W2 and W4 [Wrong Answer] |
C. | W1 and W4 [Wrong Answer] |
D. | W2 and W3 [Correct Answer] |