WSI was established in 1961 with a vision of creating an enduring benchmark in India for strategic excellence in electro-porcelains. The Goal – The continuing drive to synthesize material technology with manufacturing competence to develop innovative product solutions. The company today has an installed capacity of 12,800 CMT on a built-up area of 67,237 square meters and manufactures all types of high voltage porcelain insulators. Extensive usage of information technology for production planning, scheduling and control creates the ability to track each order through the production process, respond quickly to customer requirements and maintain minimum throughput time.

WSI manufactures suspension insulators of Normal, Fog and Aerofoil types from 45KN to 320KN for AC applications and 210KN discs for DC applications. These insulators comply with IEC standards and ANSI standards. Pin insulators from 11kV to 44kV are in the regular line of manufacture. These insulators can be supplied with Radio Interference Protection (RIV) glaze at customers’ request. Solidcore insulators from 11kV to 420kV are manufactured at WSI. The cantilever strength ranges from 2KN to 20KN and the specific creepage from 16mm/kV to 40mm/kV. Apart from IEC designs WSI also manufactures insulators according to ANSI standards.