Method of reducing corona effect.

Method of reducing corona effect.

The corona effects can be reduced by the following methods :

(i) By increasing conductor size. By increasing conductor size, the voltage at which corona

occurs is raised and hence corona effects are considerably reduced. This is one of the

reasons that ACSR conductors which have a larger cross-sectional area are used in transmission

lines.

(ii) By increasing conductor spacing. By increasing the spacing between conductors, the voltage

at which corona occurs is raised and hence corona effects can be eliminated. However,

spacing cannot be increased too much otherwise the cost will be too high