Abstract—In the distribution system, surge arresters are less expensive than the other electrical equipment installed and their presence in the system goes unnoticed during normal operation. Surge arresters are noticed only when they fail or when other system equipment fails. Distribution system surge arrester failure is interpreted in various ways by utilities and manufacturers. It is important, for the reliable operation of the system, to identify the reasons for the failure and resolve them immediately. In this paper, various possible reasons for the failure of distribution class surge arrester is discussed and measures to prevent failure are also pointed out.
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