A 3-phase overhead transmission line is being supported by three disc insulators. The potentials across top unit and middle unit are 9 kV and 11 kV respectively. Calculate: a. The ratio of capacitance between pin and earth to the self-capacitance of each unit. b. The line voltage. c. String efficiency.

A 3-phase overhead transmission line is being supported by three disc insulators. The potentials across top unit and middle unit are 9 kV and 11 kV respectively. Calculate: a. The ratio of capacitance between pin and earth to the self-capacitance of each unit. b. The line voltage. c. String efficiency.

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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