The Transformer Division of KEL at Mamala, Ernakulam, was established in 1969, with the technical assistance of BHEL, to manufacture supreme quality transformers, for various State Electricity Boards, Government Departments, Public and Private Sector Companies. This division, ISO 9001 certified by TUV, boasts of a long sustained list of extremely satisfied clients, many of whom who have stood by KEL, for decades. A fitting testimony to the trustworthy performer the robust energy efficient transformers of KEL. Over the years, relying on the unmatched quality of KEL transformers, electricity boards across India perfectly maintain a healthy power distribution supply system. The transformer division with an annual production capacity of 6,00,000 kVA soon after its inception, emerged as a major player in designing and manufacturing Distribution Transformers of ratings upto 3,000 kVA, 33 kV Class. Manufacturing custom-built transformers, for specific requirements, is yet another speciality of KEL, The KEL transformer factory is one of the first few transformer factories in India, to get ISO 9001 Certification. KEL transformers, approved by the national test house, various state electricity boards and power corporations in the country, are type tested at Central Power Research Institute, Bangalore