answer all subparts Question 4a. Two impedances are connected in parallel to an ac supply of frequency 50 Hz. Thefirst takes a current of 40 A at lagging phase angle of 30° and the second a current of30 A at a leading phase angle of 45°,i.Draw a phasor diagram to represent the supply voltage, these currents andtheir resultantDetermine the total current taken from the supply and its phase angleii.iii.Give the trigonometric representation of this currentb. The load taken from an a.c. supply consists of: (a) a heating load of 15 kW; (b) amotor load of 40 kV A at 0.6 power factor lagging: (c) a load of 20 kW at 0.8power factor lagging. Calculate the total load from the supply (in kW and kV A)and its power factor. What would be the kvar rating of a capacitor to bring thepower factor to unity and how would the capacitor be connected?

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Question 4 a. Two impedances are connected in parallel to an ac supply of frequency 50 Hz. The first takes a current of 40 A at lagging phase angle of 30° and the second a current of 30 A at a leading phase angle of 45°, i. Draw a phasor diagram to represent the supply voltage, these currents and their resultant ii. Determine the total current taken from the supply and its phase angle i. Give the trigonometric representation of this current

Question 4 a. Two impedances are connected in parallel to an ac supply of frequency 50 Hz. The first takes a current of 40 A at lagging phase angle of 30° and the second a current of 30 A at a leading phase angle of 45°, i. Draw a phasor diagram to represent the supply voltage, these currents and their resultant ii. Determine the total current taken from the supply and its phase angle i. Give the trigonometric representation of this 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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