Each line of a 3-phase system is suspended by a string of 3 similar insulators. If the voltage across the line unit is 17-5 kV, calculate the line to neutral voltage and string efficiency. Assume that shunt capaci- tance between each insulator and earthed metal work of tower to be 1/10th of the capacitance of the insulator. [52 kV, 86-67%]

Each line of a 3-phase system is suspended by a string of 3 similar insulators. If the voltage across the line unit is 17-5 kV, calculate the line to neutral voltage and string efficiency. Assume that shunt capaci- tance between each insulator and earthed metal work of tower to be 1/10th of the capacitance of the insulator. [52 kV, 86-67%]

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.29P: Consider three ideal single-phase transformers (with a voltage gain of ) put together as ...

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Concept explainers

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.

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2. Each line of a 3-phase system is suspended by a string of 3 similar insulators. If the voltage across the
line unit is 17-5 kV, calculate the line to neutral voltage and string efficiency. Assume that shunt capaci-
tance between each insulator and earthed metal work of tower to be 1/10th of the capacitance of the
insulator.
[52 kV, 86-67%]

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