The conductor diameter of a single-core underground cable is 1.0 cm and the insulation thickness is 0.4 cm. If the specific resistance of the insulation is 5 * 10 ^ 4 ohm * cm, what is the insulation resistance of a 2 km long cable?

The conductor diameter of a single-core underground cable is 1.0 cm and the insulation thickness is 0.4 cm. If the specific resistance of the insulation is 5 * 10 ^ 4 ohm * cm, what is the insulation resistance of a 2 km long cable?

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.1P: The Aluminum Electrical Conductor Handbook lists a dc resistance of 0.01558 ohm per 1000 ft at 20C...

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Concept explainers

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.

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