Numerical - Spacing between the conductors of 132 kV 3 phase line

Q.  Find the spacing between the conductors a 132 kV 3 phase line with 1.956 cm diameter conductors is built so that corona takes place, if the line voltage exceeds 210 kV (rms). With go = 30 kV/cm.
- Published on 24 Nov 15

a. 1.213 m.
b. 2.315 m.
c. 3.451 m.
d. 4.256 m.

ANSWER: 3.451 m.

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