9. Two single phase transformer each rated 150 kVA are connected open delta supplying a 3 phase Induction Motor rated 250 HP, 0.7 pf and 80% efficiency. Determine the minimum size of KVAR of a capacitor needed to prevent overloading the transformers.

9. Two single phase transformer each rated 150 kVA are connected open delta supplying a 3 phase Induction Motor rated 250 HP, 0.7 pf and 80% efficiency. Determine the minimum size of KVAR of a capacitor needed to prevent overloading the transformers.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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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

9. Two single phase transformer each rated
150 kVA are connected open delta supplying a 3
phase Induction Motor rated 250 HP, 0.7 pf and
80% efficiency. Determine the minimum size of
KVAR of a capacitor needed to prevent
overloading the transformers.

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