Testing of Bushings for the Power Grid Corporation of India Limited

On 20 July 2020, Izolyator plant has completed tests of the next batch of high-voltage bushings, made for the Power Grid Corporation of India Limited.

Power Grid Corporation of India Limited (PowerGrid) is an India-based state company, engaged in construction, operation and maintenance of the bulk power lines network.

PowerGrid is one of the largest power grid companies of the world. It is largely involved in construction and operation of power networks in India and strengthening and developing of ties with the neighboring countries: Nepal, Bhutan, Bangladesh, Sri Lanka.

The company’s core business is transmission of bulk power across the states of India via 765, 400, 220, 132 kV alternating current and ±500 kV direct current power lines that together make up the inter-state transmission system (ISTS).

The plant ran acceptance testing of 800 kV / 2000 A and 420 kV / 3000 A transformer RIP bushings.

An 800 kV / 2000 A Izolyator bushings (in the center), made for the Power Grid Corporation of India Limited

The bushings are intended for replacement of obsolete analogues with oil impregnated paper insulation in operation.

An 800 kV / 2000 A bushings at the test center of Izolyator plant

Testing of 420 kV / 3000 A Izolyator bushings

The testing was carried out in full and completed successfully. The bushings are being prepared for shipment to India.