The instrument readings obtained from open and short-circuit tests on 10kVA, 450/120V, 50Hz transformer are:
0.C. test : V= 120V; 1= 4.2A; W= 80W; W and I were in the low-voltage side.
S. C. test : V = 9.65V; 1= 22:24; W = 120W with low voltage winding short circuited. High voltag
S
Compute:
من لما ک
The equivalent constants referred to the primary.
2- Efficiency for full and half-load at 0.8 p. f.
3- Maximum efficiency.
4- The voltage regulation-up for full-load and 0.8 p. f. lagging.