Experience of Testing and Evaluation of HV Capacitors for Endurance Testing with Reference to IEC Standards

It is essential to maintain the power factor near unity for effective utilization of available apparent as renewables are gaining importance in system. Capacitors form an important component achieving unity. being used ac network reactive compensation either shunt or series mode. These capacitors must be evaluated their performance meet requirement various international/national standards International/ National evaluation continuously evolving based on application. Endurance testing test assess long duration application and find suitability availability network. The paper discusses experience two decades performing with reference IEC standards. Important observations evolution testing. Number overvoltage cycles applied during over voltage ageing were also discussed paper.