We were invited by the Power Grid Corporation of India Limited to replace the 1960s KONÇAR (Yugoslavia) disconnectors installed at the Bassi Sub-Station in Rajasthan.

These disconnectors had been serving them since the last 50+ years and were practically maintenance free except for the current carrying parts which had deteriorated over time.

We designed and installed 2 such 420kV Double Break Center Rotating Disconnector Switches with Earthing Blades in the year 2015. In 2019, when asked about the performance – we jointly decided to conduct the M2 cycle test (10,000 operations) on the disconnectors.

As expected, the contact resistance and operation time were well within the range.

Elektrolites, Manufacturer, Isolators, LA, RDSO Approved, PGCIL Approved, India