Purpose and Significance of Substation Cleaning

Substations contain electrical equipment such as transformers, circuit breakers, voltage transformers, current transformers, surge arresters, isolating switch-disconnectors, reactors, etc., all of which have porcelain insulators and rod-shaped supports that provide electrical insulation and mechanical support. Environmental pollution can significantly decrease the external insulation level of these devices, leading to pollution flashovers. Accidents caused by the decrease in external insulation level are becoming increasingly serious. This quiz text discusses the importance and necessity of cleaning substations to prevent accidents.