A 300 kVA transformer has an efficiency has an efficiency of 97.5 percent at FL and 0.82 pf lagging. If the maximum efficiency occurs at 80% FL. Find the HL and FL efficiency both at 0.9 pf? Your answer

A 300 kVA transformer has an efficiency has an efficiency of 97.5 percent at FL and 0.82 pf lagging. If the maximum efficiency occurs at 80% FL. Find the HL and FL efficiency both at 0.9 pf? Your answer

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter3: Magnetic Starters

Section: Chapter Questions

Problem 30SQ

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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.

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Your answer
A 300 kVA transformer has an efficiency has an efficiency of 97.5 percent at FL
and 0.82 pf lagging. If the maximum efficiency occurs at 80% FL. Find the HL and
FL efficiency both at 0.9 pf?
Your answer

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