Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz single-phase overhead line system. If the pin to earth capacitance is also C, then the string efficiency is (a) 50 % (c) 90 % insulation (b) 75 % (d) 86 %

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 3.33P: Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage...
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Two insulator discs of identical capacitance
value C make up a string for a 22 kV, 50 Hz
single-phase overhead
system. If the pin to earth capacitance is also
C, then the string efficiency is
(a) 50 %
(c) 90 %
line insulation
(b) 75 %
(d) 86 %
Transcribed Image Text:Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz single-phase overhead system. If the pin to earth capacitance is also C, then the string efficiency is (a) 50 % (c) 90 % line insulation (b) 75 % (d) 86 %
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