• Torotrans

Toroidal Power Transformer

Torotrans is one of the leading manufacturers of high quality professional grade Toroidal Transformers. A toroidal power transformer has ring type core made from cold rolled grain oriented (CRGO) silicon steel strip without any joints and annealed for stress relief after being wound. These wound cores are then suitably insulated by class B insulation, the winding of copper wire usually done by winding machines. The core being continuous, without any air gap and the path of flux being along the direction of grain orientation, gives an opportunity for optimum use of flux density, besides very low iron loss and exciting current. The primary and secondary windings are closely linked magnetically. Therefore the leakage fluxes and reactance are negligible. Toroidal transformers have the winding spread over the entire periphery of the core. This results in larger area for dissipating the heat. The manufacturing facility is equipped with the following machinery: toroidal core winding machines; spot welding transformers; electric heating furnace for annealing of CRGO cores; toroidal winding machines; testing bench, etc. The company manufactures toroidal power transformer in the range 15 VA-8 kVA and toroidal low tension current transformers of any rating in tape wound as well as resin cast.