PS Electricals Pvt. Ltd manufactures Sturdy Oil Cooled Transformer. PS Electricals Pvt. Ltd is an ISO9001 certified company. The other products manufactured are furnace transformers, excitation transformers, shunt reactors etc. The Sturdy Oil Cooled Transformer is a transformer filled with a highly refined mineral oil that is used to insulate internal live parts of the transformer to prevent the overheating of equipment and machinery due to high power usage.ŸThe Sturdy Oil Cooled Transformer is used in Power plants, big institutions like MNCs, heavy industries etc. The Sturdy Oil Cooled Transformer greatly reduces energy costs, can run at 30 percent overload and production increases while operational costs decrease