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A transmission line consists of 9 discs of suspension insulator in each string. What is the operating voltage of the transmission line?

A transmission line consists of 9 discs of suspension insulator in each string. What is the operating voltage of the transmission line? Correct Answer 132 KV

For different voltage it does not need to use different suspension insulator. Srength of insulator can easily be increased just by adding extra disc of suspension insulators. For 130 KV transmission lines 9 or 10 disks are used.

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