Answered: The maximum and minimum stresses in the…

The maximum and minimum stresses in the dielectric of a single-core cable are 40 kV/cm (r.m.s.) and 10 kV/cm (r.m.s.) respec tively. If the conductor diameter is 2 cm, the insulation thickness is

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 4.5MCQ: Shield wires located above the phase conductors protect the phase conductors against lightning. True...

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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.

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The maximum and minimum stresses in the dielectric of a single-core cable are 40 kV/cm (r.m.s.) and 10 kV/cm (r.m.s.) respec-
tively. If the conductor diameter is 2 cm, the insulation thickness is

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