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Question

What could be the possible length of the transmission line in order nullify the effect of capacitance in overhead transmission lines?

A.

Less than 200 km 

B.

Less than 100 km 

C.

Less than 120 km 

D.

Less than 80 km

Answer ( Option D)

Less than 80 km

Solution

According to length of transmission line in it may be categories as :

Short transmission line < 80 km.

Medium transmission line 80-160 km.

Long transmission line < 240 km.

In short transmission line, effect of capacitance can be neglected. Hence, possible length should be less than 80 km.

Hence, the correct option is (D).

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