Power Grid Corporation of India Limited Inspected Bushings Tests

On 25–29 January 2016, The State Grid Company of India Power Grid Corporation of India Limited inspected Izolyator bushings tests.

Power Grid Corporation of India Limited (PowerGrid) is an India-based company, engaged in construction, operation and maintenance of inter-state transmission system (ISTS). The company’s core business is transmission of bulk power across different States of India. The Company’s business also includes telecom and consultancy services. The Company’s telecom business engaged in the PowerGrid’s transmission infrastructure across the country. The Company’s consultancy services provides engineering, procurement and construction within and outside India, in the field of electrical power transmission and distribution to governments and other utilities, including in the field of energy efficiency, smart grid and training. The Company owns and operates transmission network of about 106,804 Ckm of Extra High Voltage (EHV) transmission lines, 184 EHVAC & High Voltage Direct Current (HVDC) Sub-stations and 205,923 MVA transformation capacity.

RIP bushings for autotransformers at 400 kV Bamnauli substation operated by Delhi Transco Limited (part of PowerGrid) were type-tested. Three-phase 500 MVA autotransformers were made at the plant entering Crompton Greaves T1 Division.

According to the tests schedule, 252 kV /  2000 A and 420 kV / 1250 A bushings were checked for temperature rise.

Himanshu Agarwal, Inspecting Engineer at PowerGrid arrived to see the tests.

Dmitry Ivanov, Head of Test Center at Izolyator directed the tests. Alexander Novikov, Quality Director and Vladimir Ustinov, Deputy Quality Director took part in the tests.

All tests and inspection were a success reconfirming the high quality of Izolyator products.

Dmitry Ivanov (L) and Himanshu Agarwal at the type tests of Izolyator bushings