A balanced three-phase distribution line has an impedance of 1+8johms per phase. This line is used to supply three balanced three-phase loads that are connected in parallel. The three loads are L1= 120kVA at 0.96 p.f lead, L2 = 180kVA at 0.80 p.f lag, and 13 =100.8kW and 15.6kVAR (magnetizing). The magnitude of the linevoltage at the terminals of the loads is 4157V.a. What is the magnitude of the line voltage at the sending end ofthe line?b. What is the percent efficiency of the distribution line withrespect to average power.

Three Phase Distribution Line: Most distribution substations send electricity out on three-phase…

A balanced three-phase distribution line has an impedance of 1+8j ohms per phase. This line is used to supply three balanced three- phase loads that are connected in parallel. The three loads are L1 = 120kVA at 0.96 p.f lead, L2 = 180kVA at 0.80 p.f lag, and L3 = 100.8kW and 15.6kVAR (magnetizing). The magnitude of the line voltage at the terminals of the loads is 4157V. a. What is the magnitude of the line voltage at the sending end of the line? b. What is the percent efficiency of the distribution line with respect to average power.

A balanced three-phase distribution line has an impedance of 1+8j ohms per phase. This line is used to supply three balanced three- phase loads that are connected in parallel. The three loads are L1 = 120kVA at 0.96 p.f lead, L2 = 180kVA at 0.80 p.f lag, and L3 = 100.8kW and 15.6kVAR (magnetizing). The magnitude of the line voltage at the terminals of the loads is 4157V. a. What is the magnitude of the line voltage at the sending end of the line? b. What is the percent efficiency of the distribution line with respect to average power.

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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