Do part (d and e) Question 3(a) Briefly explain what is the per-unit system.(b) A resistance of 600 is selected as the base resistance in a circuitconsists of three resistors. If R =1000, R = 30002, andR = 202 calculate the per-unit value of each resistance.(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 has a per-unit 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 carries a curent of 60.4. Given the base value ofvoltage, E, = 4KV, the base value of power, P, = 500KW, thebase value of current, I, =1254, and the base value of resistor,Z, = 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/9de9390f-7c38-43e1-8d98-bad222ec813f.jpg

(d) A resistor has a per-unit value of 5.3. Given the base power is P, = 250KW, and the base voltage is E, =12470V, calculate the ohmic value (actual value) of the resistor. (e) A 4002 resistor carries a current of 604. Given the base value of voltage, E, = 4KV, the base value of power, P, = 500KW, the base value of current, I, =125.4, and the base value of resistor, Z, = 320, calculate the following: i The per-unit resistance. ii. The per-unit current. iii. The per-unit voltage across the resistor. iv. The per-unit power.

(d) A resistor has a per-unit value of 5.3. Given the base power is P, = 250KW, and the base voltage is E, =12470V, calculate the ohmic value (actual value) of the resistor. (e) A 4002 resistor carries a current of 604. Given the base value of voltage, E, = 4KV, the base value of power, P, = 500KW, the base value of current, I, =125.4, and the base value of resistor, Z, = 320, calculate the following: i The per-unit resistance. ii. The per-unit current. iii. The per-unit voltage across the resistor. iv. The per-unit power.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter7: Parallel Circuits

Section: Chapter Questions

Problem 4PP: Using the rules for parallel circuits and Ohmslaw, solve for the missing values....

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