AN INSULATOR COMPRISING FIELD REDUCTION ELECTRODES TO IMPROVE POLLUTION FLASHOVER STRENGTH AND METHODS THEREOF

摘要

The present invention relates to development of the novel field reduction electrodes both for normal and anti-fog type disc insulators and describes a method for improving the flashover strength of ceramic/porcelain disc insulators/insulator strings significantly under polluted conditions. The field reduction elements/electrodes are developed to reduce the maximum field around the pin region. The method is adopted either at the time of manufacture of the insulators or for retro-fitting to the existing insulators in service. Figure la