Question: Question 2 A three - phase 6 9 kV transmission line having a basic insulation level of 3 0 0 kV is (

Question

2

A three

-

phase

69

kV transmission line having a basic insulation level of

300

kV is

\ (\

qquad

\)

supported on steel towers and protected by a circuit breaker. The line transformer is just behind the circuit breaker as shown below. The ground resistance at each tower is

\ (25 \

Omega

\)

whereas the neutral of the transmission line is solidly grounded at the transformer.

.

Calculate the voltage across each insulator string under normal conditions.

Question 2 A three - phase 6 9 kV transmission

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