9. A three-phase overhead transmission line is being supported by three-disc suspension insulators; the potentials across the first and second insulator from the top are 8 kV and 11 kV respectively. Calcualte () the line voltage (if) the ratio of capacitance between pin and earth to self capacitance of each unit (iif) the string efficiency. () 64-28 V (ii)0-375 (ii) 68-28%]

9. A three-phase overhead transmission line is being supported by three-disc suspension insulators; the potentials across the first and second insulator from the top are 8 kV and 11 kV respectively. Calcualte () the line voltage (if) the ratio of capacitance between pin and earth to self capacitance of each unit (iif) the string efficiency. () 64-28 V (ii)0-375 (ii) 68-28%]

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

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.52P

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