Question 3(a) Briefly explain what is the per-unit systero.(b) A resistance of 60n is selected as the base resistance in a circuitconsists of three resistors. If R, =1002, R, =30002 and%3DR, = 200 calculate the per-unit vahue of each resistance.%3D(c) A power of, P-25KW and a voltage of, E-2400V are selectedas the base power and base voltage of a power system respectively.Calculate the value of the base impedance, Z, and the basecurrent, I,.(d) A resistor bas a per-nnit value of 5.3. Given the base power isP=250KW, and the base voltage is E,-12470V, calculate theohmic value (actual value) of the resistor.(e) A 4000 resistor caries a cucrent of 60A. Given the base valne ofvoltage, E, 4KV, the base value of power, P, 500KTF, thebase value of current, I, =125.4, and the base value of resistor,2, = 320 calculate the following:i The per-unit resistance.ii. The per-unit current.ii. The per-unit voltage across the resistor.iv. The per-unit power.

Answered: Image /qna-images/answer/65a0b2f2-26ff-4699-8e6d-a5e8909351a1.jpg

(a) Briefly explain what is the per-unit systerm. (b) A resistance of 60n is selected as the bese resistance in a circuit consists of three resistors. If R, = 1002 R, =3000n and R3 = 202 calculate the per-unit value of each resistance. %3D (c) A power of, P-25KW and a voltage of, E-2400V are selected as the base power and base voltage of a power system respectively. Calculate the value of the base impedance, Z, and the base current, I,

(a) Briefly explain what is the per-unit systerm. (b) A resistance of 60n is selected as the bese resistance in a circuit consists of three resistors. If R, = 1002 R, =3000n and R3 = 202 calculate the per-unit value of each resistance. %3D (c) A power of, P-25KW and a voltage of, E-2400V are selected as the base power and base voltage of a power system respectively. Calculate the value of the base impedance, Z, and the base current, I,

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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The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

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