4. A single-phase, 1000-kVA, 2400/8000-V, 60HZ distribution transformer has the following parameters: Resistance of the 2400-V winding: R1 = 2.75 2 Resistance of the 8000-V winding: R2 = 29.4 2 Leakage reactance of the 2400-V winding: X1= 1.8 Q Leakage reactance of the 8000-V winding: X2 = 20 2 Exciting admittance on the 2400-V side: 0.002 - j0.008 S %3| Draw the equivalent circuit referred to the high voltage side of the transformer. a. b. Draw the equivalent circuit referred to the low voltage side of the transformer. Show the numerical values of impedances on the equivalent circuits. 5. The transformer in Problem 4. is supplying a rated load of 1000-kVA at a rated secondary voltage of 8000 V and at 0.8 power factor lagging. Neglecting the transformer exciting current, determine the input terminal voltage of the transformer on the low-voltage side.
4. A single-phase, 1000-kVA, 2400/8000-V, 60HZ distribution transformer has the following parameters: Resistance of the 2400-V winding: R1 = 2.75 2 Resistance of the 8000-V winding: R2 = 29.4 2 Leakage reactance of the 2400-V winding: X1= 1.8 Q Leakage reactance of the 8000-V winding: X2 = 20 2 Exciting admittance on the 2400-V side: 0.002 - j0.008 S %3| Draw the equivalent circuit referred to the high voltage side of the transformer. a. b. Draw the equivalent circuit referred to the low voltage side of the transformer. Show the numerical values of impedances on the equivalent circuits. 5. The transformer in Problem 4. is supplying a rated load of 1000-kVA at a rated secondary voltage of 8000 V and at 0.8 power factor lagging. Neglecting the transformer exciting current, determine the input terminal voltage of the transformer on the low-voltage side.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.16P: A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters:...
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