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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…

Classification of Underground Cables

Classification of Underground Cables: Classification of Underground Cables may be in two ways according to the type of insulating material used in their manufacture the voltage for which they are…

Classification of Overhead Transmission Lines

Classification of Overhead Transmission Lines: The important considerations in the design, operation and Classification of Overhead Transmission Lines are the determination of voltage drop, line losses and efficiency of transmission.…

Comparison of Various Systems of Transmission

Comparison of Various Systems of Transmission: Below is given the table which shows the ratio of conductor-material in any Comparison of Various Systems of Transmission with that in the corresponding…

Comparison of Conductor Material in Underground System

Comparison of Conductor Material in Underground System: In an Conductor Material in Underground System using multi-core belted type cables, the chief stress on the insulation is usually between conductors. Under…

Comparison of Conductor Material in Overhead System

Comparison of Conductor Material in Overhead System: In comparing the relative amounts of Conductor Material in Overhead System necessary for different systems of transmission, similar conditions will be assumed in…

Various Systems of Power Transmission

Various Systems of Power Transmission: It has already been pointed out that for transmission of electric power, 3-phase, 3-wire a.c. system is universally adopted. However, other systems can also be…

Comparison of AC Transmission and DC Transmission

Comparison of AC Transmission and DC Transmission: The electric power can be transmitted either by means of d.c. or a.c. Each system has its own merits and demerits. It is,…