Grading of Cables

Grading of Cables

Grading of Cables: The process of achieving uniform electrostatic stress in the dielectric of cables is known as grading of cables. It has already been shown that electrostatic stress in…

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Insulating Materials for Underground Cables

Insulating Materials for Underground Cables: The satisfactory operation of a cable depends to a great extent upon the characteristics of insulation used. Therefore, the proper choice of Insulating Materials for…

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Underground Cables

Underground Cables: Electric power can be transmitted or distributed either by overhead system or by underground cables. The underground cables have several advantages such as less liable to damage through storms…

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String Efficiency of Insulator

String Efficiency of Insulator

String Efficiency of Insulator: As stated above, the voltage applied across the string of suspension insulators is not uniformly distributed across various units or discs. The disc nearest to the…

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Line Support

Line Support

Line Support: The supporting structures for overhead line conductors are various types of poles and towers called line support. In general, the line supports should have the following properties :…

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Introduction to Overhead Line

Introduction to Overhead Line: Electric power can be transmitted or distributed either by means of underground  cables or by overhead line. The underground cables are rarely used for power transmission…

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Electric Supply System

Electric Supply System

Electric Supply System: The conveyance of electric power from a power station to consumers' premises is known as Electric Supply System. An electric supply system consists of three principal components…

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