1. An electro-magnet draws 3 kW of active power and 4 kvar of reactive power. a. Calculate the apparent power. b. Calculate the power factor. 2. A capacitor drawing 4 kvar is placed in parallel with the electro-magnet of Question 1. a. Calculate the new value of apparent power b. What is the new value of reactive power? C. What is the value of active power? d. What is the new power factor?
1. An electro-magnet draws 3 kW of active power and 4 kvar of reactive power. a. Calculate the apparent power. b. Calculate the power factor. 2. A capacitor drawing 4 kvar is placed in parallel with the electro-magnet of Question 1. a. Calculate the new value of apparent power b. What is the new value of reactive power? C. What is the value of active power? d. What is the new power factor?
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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