VOLTAMP® Electricals Pvt. Ltd. operates a Quality Management System approved to ISO 9001:2008. Rigorous stage inspection and testing after every sequence of operation is carried out with the help of check sheets and procedures to check conformity with the design and specifications at important process levels such as winding, coil pressing, handling and stacking of laminations, coil assembly, connection, drying, tanking, oil filling, etc. Incoming materials are procured from VOLTAMP® approved sources and are subjected to rigorous quality checks as per rigid internal standards based on BSI, IEC and VOLTAMP® standards & practices. Inspection and test procedures are used throughout to ensure the accuracy and consistency of production, especially in critical areas with records being kept of the operations. The whole Quality Management System is under constant review and audited periodically. This is to ensure that at each stage the work is carried out to the customer’s requirements and satisfaction.

Our raw materials go through strict quality control to ensure that our end product is of the Highest Standard –


  • CORE LAMINATION: Imported from Japan, France, USA & Germany of Grade M3 & M4 with thickness 0.23mm – 0.27mm.
  • COPPER: 99.9% electrolytic pure copper purchased from Hindustan Copper Ltd. Has double paper covering /super enamelled and Nomex Insulation is used.
  • COOLING RADIATOR: Adequate Size Radiators are Provided for effective cooling.
  • M.S. PLATES, ANGLES, CHANNELS ETC.: Reputed brand of M.S. materials are used like Tata, SAIL, IISCO, Bokaro Steel etc.
  • Transformer Oil: Best quality of transformer oil available in the country is used. Oil is procured in bulk quantity from: Apar Industries Ltd. – Poweroil brand Gulf Oil India Ltd. – Gulf Brand.
  • Insulation: Best quality of insulation is used in the transformer for long life. Reputed insulation suppliers are: Permali Wallace Ltd., Bhopal – Senapathy Whitely Ltd., Bangaluru – Bakellite Hylam Ltd., Hyderabad – Raman Boards Ltd., Mysore.
  • Varnish: Copper coils are vacuum impregnated with best available varnish of Dr. Beck’s brand for oil-immersed transformer and silicon varnish of DUpont, U.S.A. for dry type transformer.
  • Porcelain brushing: Best quality/tested ceramic porcelain brushings are used for terminals on transformer, supplied by Techno Ceramic India Pvt. Ltd., Kolkata.
  • Paint: Our Transformers are painted using the best quality paint from Berger India Ltd. This ensures longevity of the product.