A 3-phase, 50 Hz transmission line with a total series impedance of 34 + j140 2 and shuntadmittance of j900 x 10-6-1, is 210 km long. With 0.9 power factor lagging, the realpower delivered at 110 kV is 20 MW. Find the magnitude of the sending-end line voltage.BIUGGE

In this question, we need to determine the sending end line voltage.

A 3-phase, 50 Hz transmission line with a total series impedance of 34 + j140 2 and shunt admittance of j900 x 10-6 0-1, is 210 km long. With 0.9 power factor lagging, the real power delivered at 110 kV is 20 MW. Find the magnitude of the sending-end line voltage. BIUGG

A 3-phase, 50 Hz transmission line with a total series impedance of 34 + j140 2 and shunt admittance of j900 x 10-6 0-1, is 210 km long. With 0.9 power factor lagging, the real power delivered at 110 kV is 20 MW. Find the magnitude of the sending-end line voltage. BIUGG

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Distribution System

The final stage in the delivery of the electric power is the electric power distribution system. From the transmission system to the individual customers it carries electricity. The distribution system is connected with the transmission system and is used to lower the voltage of the transmission to medium voltage in the range of 2 kV to 35 kV with the help of transformers. This medium voltage to the distribution transformers located near the customer's premises is carried by the primary distribution system lines. These distribution transformers in turn lower the voltage to utilization voltage used in lightings, household appliances, industrial equipments etc. Through secondary distribution lines often several customers are supplied from one transformer. It is through service drops, the commercial and residential customers are connected to the secondary distribution system lines. Customers who demand a larger amount of power can be connected directly to the primary distribution system level or the sub-transmission level.

Question

A 3-phase, 50 Hz transmission line with a total series impedance of 34 + j140 2 and shunt
admittance of j900 x 10-6-1, is 210 km long. With 0.9 power factor lagging, the real
power delivered at 110 kV is 20 MW. Find the magnitude of the sending-end line voltage.
BIUGG
E

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