A 3 phase over head transmission line is supported by three discs of suspension insulators. The potentials across the first and second insulator are 8 and 11 kV respectively. What is the line voltage and string efficiency?

A 3 phase over head transmission line is supported by three discs of s

1.	A 3 phase over head transmission line is supported by three discs of suspension insulators. The potentials across the first and second insulator are 8 and 11 kV respectively. What is the line voltage and string efficiency?
A.	0.654 and 63.5%
B.	0.375 and 68.3 %
C.	0.527 and 56.34 %
D.	0.287 and 65.258 %
Answer» C. 0.527 and 56.34 %

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A 3 phase over head transmission line is supported by three discs of suspension insulators. The potentials across the first and second insulator are 8 and 11 kV respectively. What is the line voltage and string efficiency?
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A 3 phase over head transmission line is supported by three discs of suspension insulators. The potentials across the first and second insulator are 8 and 11 kV respectively. What is the line voltage and string efficiency?

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