2 watt meters are used to measure the input of 400V three phase motor which has a full load output of 20 h.p The efficiency of the motor is 88% and its power factor is 0.8. Calculate a) the reading on each watt- meters. B) the full load current

2 watt meters are used to measure the input of 400V three phase motor which has a full load output of 20 h.p The efficiency of the motor is 88% and its power factor is 0.8. Calculate a) the reading on each watt- meters. B) the full load current

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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Question

2 watt meters are used to measure the input of 400V three phase motor which has a full load output of 20 h.p

The efficiency of the motor is 88% and its power factor is 0.8.

Calculate a) the reading on each watt- meters.

B) the full load current

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Step 1: Summarize the given information.

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Step 2: Determine input electric power.

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Step 3: Determine wattmeter readings.

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Step 4: Determine full-load current.

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