In a 3-phase, 4-wire system, the currents in R, Y and B lines under abnormal conditions of loading are as under: IR = 100 2300 A; IY = 50 3000 A; IB = 30 1800 A The angle of the Current in the neutral wire in electrical degrees is: oark.

In a 3-phase, 4-wire system, the currents in R, Y and B lines under abnormal conditions of loading are as under: IR = 100 2300 A; IY = 50 3000 A; IB = 30 1800 A The angle of the Current in the neutral wire in electrical degrees is: oark.

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 4.36MCQ: When the electric field strength at a conductor surface exceeds the break-down strength of air,...

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Dielectric Breakdown

A dielectric is a material with low electrical conductivity and so is classified as an insulator. Dielectric materials are used to block the flow of electricity through them, allowing them to behave as an insulators. They can also be used to store electric charge or improve capacitance.Dielectrics have no free electrons for conduction because electrons are tightly bound to the nucleus. Because dielectrics contain a small number of electrons for electrical conductivity, they have a dipole. The two primary roles of dielectrics in electrical devices are insulation and electrical energy storage. An electric field polarizes the dielectric, and the polarization of the molecules allows dielectric materials to store charge.

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In a 3-phase, 4-wire system, the currents in R,
Y and B lines under abnormal conditions of
loading are as under:
IR = 100 2300 A; IY = 50 3000 A; IB =
30 1800 A
The angle of the Current in the neutral wire in
electrical degrees is:
oark.

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