A 66 kV system has string insulator having five discs and the earth to disc capacitance ratio at 0.10. The string efficiency will be ________%

A 66 kV system has string insulator having five discs and the earth to

1.	A 66 kV system has string insulator having five discs and the earth to disc capacitance ratio at 0.10. The string efficiency will be ________%
A.	60.7
B.	6.07
C.	67
D.	6.7
Answer» D. 6.7

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A 66 kV system has string insulator having five discs and the earth to disc capacitance ratio at 0.10. The string efficiency will be ________%

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