c) A 35 kVA, 415/240 V, 50 Hz single-phase transformer has the following parameters:R1 = 0.16 QR2 = 0.0852Rc = 2402XI = 0.302X2 = 0.152Xm = 1002The transformer delivers 27kW at 0.85 power factor lagging to a load on the low voltageside requiring 240V across it. Draw the schematic of the transformer circuit andcalculate the primary terminal voltage.

It is given that: P=27 KW=27×103 Wcosϕ=0.85P2=240 VR1=0.16 ΩR2=0.085 ΩRc=240 ΩX1=0.30 ΩX2=0.15…

Answered: c) A 35 kVA, 415/240 V, 50 Hz…

c) A 35 kVA, 415/240 V, 50 Hz single-phase transformer has the follo R1 = 0.16 Q R2 = 0.0852 Rc = 2402 %3D X1 = 0.302 X2 = 0.152 Xm = 1002 %3D

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 3.15P: Rework Problem 3.14 if the transformer is delivering rated load at rated secondary voltage and at...

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Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

Question

c) A 35 kVA, 415/240 V, 50 Hz single-phase transformer has the following parameters:
R1 = 0.16 Q
R2 = 0.0852
Rc = 2402
XI = 0.302
X2 = 0.152
Xm = 1002
The transformer delivers 27kW at 0.85 power factor lagging to a load on the low voltage
side requiring 240V across it. Draw the schematic of the transformer circuit and
calculate the primary terminal voltage.

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