Electro magnetic devices offers transformers and chokes that facilitate for manufacturing 0.1 va to 300 kva, 1-phase 3-phase, scott, transformers and chokes for low and high frequency. These are open natural air cooled, enclosed in ms box oil cooled. The treatment of the transformers is vacuum impregnation of varnish and drying and curing. Hv insulation is oil immersed, potted, sealed and encapsulated. Capacity is to produce 1,00,000 nos at a time, work force available 45 nos with total testing facilites. The standards are is:2026, is:6297, hal:26002, jss:55555, mr t-2, jssss:54500, 2420 or to other customer specifications. Transformers chokes designed are compact and very optimum, highly efficient and reliable. Many import substitutions and innovative components are developed as per customer`s requirements.