TWO WATTMETERS ARE CONNECTED TO MEASURE THE INPUT TO A BALANCE 3 PHASE CIRCUIT INDICATE 5000 W AND 2500 W RESPECTIVELY. FIND THE POWER FACTOR OF THE CIRCUIT. (1) WHEN BOTH THE READINGS ARE POSITIVE (2) WHEN THE LATTER READING IS OBTAINED AFTER REVERSING THE CONNECTION TO THE CURRENT COIL OF FIRST INSTRUMENT I

TWO WATTMETERS ARE CONNECTED TO MEASURE THE INPUT TO A BALANCE 3 PHASE CIRCUIT INDICATE 5000 W AND 2500 W RESPECTIVELY. FIND THE POWER FACTOR OF THE CIRCUIT. (1) WHEN BOTH THE READINGS ARE POSITIVE (2) WHEN THE LATTER READING IS OBTAINED AFTER REVERSING THE CONNECTION TO THE CURRENT COIL OF FIRST INSTRUMENT I

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter26: Three-phase Circuits

Section: Chapter Questions

Problem 3PA: You are an electrician working in an industrial plant. A 30-hp three-phase induction motor has a...

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