IMPROVEMENTS RELATING TO ELECTRICAL SURGE ARRESTERS

摘要

A high voltage (station class) surge arrester comprises a plurality of serially connected stages and each stage comprises a plurality of low voltag e (distribution class) polymer housed solid state surge arresters which are electrically matched. The individual surge arresters of each stage are connected together and to the respective surge arresters of the (or each) adjacent stage by means of cast metal mounting brackets (spiders) having plural equiangularly-spaced limbs to the ends of which the surge arresters a re attached. Corona suppression rings are mounted at the top end of the arreste r and separate corona suppression components are mounted at the ends of the limbs of the intermediate stages.