Crompton Greaves (CG), part of the USD 4 billion Avantha Group, has successfully designed, developed and tested its first indigenous 1,200-kV class auto-transformer. The engineering major announced the dispatch of its first 1,200 kV transformer to Power Grid Corporation of India Ltd (PGCIL) in Bina, Madhya Pradesh. The transformer was tested successfully in October at CG's Transformer division in Mandideep, Madhya Pradesh.
Globally, the 1,200 kV transformer is limited to a few countries like Russia (1,200 kV), Japan (1,100 kV), Italy (1,050 kV) and China (1,100 kV). The company states that our country would need 1,200 kV AC, as next transmission voltage for bulk transfer of power of the order of 3,000 to 6,000 MW per line from power generation complexes in east and North-east to load centres located in Northern and Western Regions in line with plans of augmenting power generation capacity. The 1,200 kV AC will be the highest transmission voltage (UHV) in the world. To develop this frontier technology indigenously, PGCIL took a lead to establish a 1,200 kV test station at Bina (Madhya Pradesh).