QIn a 3-phase overhead system, each line is suspended by a string of 3 insulators. The voltage across the top unit (i.e. near the tower) and middle unit are10kVand11kVrespectively.Calculate(î) the ratio of shunt capacitance to self-capacitance of each insulator, (ii) the string efficiency and (iii) line voltage.

QIn a 3-phase overhead system, each line is suspended by a string of 3 insulators. The voltage across the top unit (i.e. near the tower) and middle unit are10kVand11kVrespectively.Calculate(î) the ratio of shunt capacitance to self-capacitance of each insulator, (ii) the string efficiency and (iii) line voltage.

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

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.21P

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