Question

in a 66kv transmission line there is 4 discs in a suspension chain . if msximum voltage is 10kv .find the string efficiency​

Answer 1

Given :  66kv transmission line   ,  discs in a suspension chain . maximum voltage is 10kv  

To find : string efficiency

Solution:

String efficiency  =  voltage across whole string / n (voltage of one unit)

voltage across whole string = 66/√3  kV

n = number of disc = 4

voltage of one unit = 10 kV

String efficiency  =  66/(√3 * 4 * 10)

=> String efficiency  = 0.9526

String efficiency % = 95.26 %

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