i. Obtain the parameters of the equivalent circuit, Find the full-load copper and iron losses. ii. iii. Calculate the efficiency of 60% of full-load at power factor 0.8 lagging. Find the full-load voltage regulation at power factor 0.8 leading. iv.

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Q.3: A 7kVA, 750/300-V, 50-Hz, single-phase transformer, the open and short circuit tests
data are as following:
O.C test: 300 V, 1.3 A, 320 W (L.V. side)
S.C. test: 25 V, 20 A, 350 W (H.V. side)
i.
Obtain the parameters of the equivalent circuit,
ii.
Find the full-load copper and iron losses.
iii.
Calculate the efficiency of 60% of full-load at power factor 0.8 lagging.
iv. Find the full-load voltage regulation at power factor 0.8 leading.
Transcribed Image Text:Q.3: A 7kVA, 750/300-V, 50-Hz, single-phase transformer, the open and short circuit tests data are as following: O.C test: 300 V, 1.3 A, 320 W (L.V. side) S.C. test: 25 V, 20 A, 350 W (H.V. side) i. Obtain the parameters of the equivalent circuit, ii. Find the full-load copper and iron losses. iii. Calculate the efficiency of 60% of full-load at power factor 0.8 lagging. iv. Find the full-load voltage regulation at power factor 0.8 leading.
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