Q1) Find the string efficiency of each line of a 3-phase is hung by a 3 strings of insulators. Each insulator has (C) Farads. The shunt capacitance of metal is 0.5 C to earth and of 0.2 C to the line, and the line a guard ring increases the capacitance to the line of the lowest insulator to 0.6 C.

Q1) Find the string efficiency of each line of a 3-phase is hung by a 3 strings of insulators. Each insulator has (C) Farads. The shunt capacitance of metal is 0.5 C to earth and of 0.2 C to the line, and the line a guard ring increases the capacitance to the line of the lowest insulator to 0.6 C.

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 4.12P: Find the inductive reactance per mile of a single-phase overhead transmission line operating at 60...

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Q1) Find the string efficiency of each line of a 3-phase is hung by a 3 strings of insulators. Each
insulator has (C) Farads. The shunt capacitance of metal is 0.5 C to earth and of 0.2 C to the line, and the
line a guard ring increases the capacitance to the line of the lowest insulator to 0.6 C.

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