CG commenced manufacturing of Polycrete CTs & VTs in 1994-95. The Polycrete application for electrical products was patented in the year 1995. Since then, more than 50000 products have been manufactured and supplied to Indian and international customers. The CTs & VTs manufactured using Polycrete are in the range of 11kV to 33kV.
Polycrete means Polymer Concrete and is a solid insulating material. The main composition of Polycrete is Polyester Resin, Silica Flour and various chemicals used as binders. The mixing of the components is carried out under vacuum to achieve void free castings. The Polycrete is hydrophobic and thus ideal for outdoor applications. The electrical application of Polycrete was established after thorough research and validation on samples and products at our global R&D Centre located in Kanjur Marg , Mumbai.