EXAMPLE: What is the maximum length in km for a 3 phase T.L having copper conductor of 0.775 cm² crass section over which 200 KW at unity power factor and at 3300 V are to be delivered, the efficiency if T.L is 90%, take specific resistance as 1.725 µN cm

EXAMPLE: What is the maximum length in km for a 3 phase T.L having copper conductor of 0.775 cm² crass section over which 200 KW at unity power factor and at 3300 V are to be delivered, the efficiency if T.L is 90%, take specific resistance as 1.725 µN cm

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter23: Resistive-inductive-capacitive Series Circuits

Section: Chapter Questions

Problem 7PP: Is the power factor in Question 6 a leading or lagging power factor? Explain your answer.

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Concept explainers

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.

Question

EXAMPLE: What is the maximum length
in km for a 3 phase T.L having copper
conductor of 0.775 cm² crass section over
which 200 KW at unity power factor and
at 3300 V are to be delivered, the
efficiency if T.L is 90%, take specific
resistance as 1.725 µ2 cm

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