Naslov
The Protection against Lightning of an Overhead Line Uprated from 225 kV to 400 kV

Autori
Xémard, Alain ; Dennetière, Sébastien ; Uglešić, Ivo ; Milardić, Viktor ; Milešević, Boško ; Grand, Philippe ; Sauvegrain, François, Stevenin, Pierre, Mesić, Miroslav

Izvornik
Journal of energy and power engineering (1934-8975) 6 (2012), 2; 267-275

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Lightning; transmission line; voltage uprating; insulation coordination

Sažetak
The voltage uprating of existing overhead lines is an interesting solution for increasing the transmission of electricity, especially in areas where it is difficult to build new lines. If a line is uprated with minor changes of its design and without improvement of the grounding electrodes of towers, its lightning performance remains unchanged. The consequence is that the uprated line will have a lightning flashover rate very high compared to an overhead line of same nominal voltage but of standard design. One attractive solution to solve this problem is to use line arresters. The goal of this paper is to study the use of line arresters to achieve a satisfactory lightning performance of an overhead line uprated from 225 kV to 400 kV without major design modifications. In order to compare different strategies of line arrester installation the flashover rate is calculated based on a software able to launch automatically EMTP-RV. This software named LIPS has been developed under the cover of a partnership between Hydro-Quebec, RTE and EDF.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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