Balteau Produtos Elétricos LTDA is a traditional manufacturer of Instrument Transformers and Metering Device Set in Itajubá-MG, Brazil. Balteau has assured its presence in electrical utilities companies, switchgear manufacturers and on main mining, metallurgy, chemicals and oil industries installations in Brazil and other countries. Founded in 1977, Balteau is headquartered in the Industrial District of Itajubá, Minas Gerais - Brazil. lt is a company certificated by ISO 9001 since 1994 and it has been conquering the world market in a solid and efficient way. For that, the company counts on the most advanced technologies and qualified professionals which have consolidated experience in projects, production, electrical tests, technical assistance for Current Transformers up to 550 kV, Potential Transformers (inductive and capacitive) up to 550 kV, and Metering Device Set up to 15 kV, with great technological potential and international assured quality, attending to the most demanding markets. Our products are robust but with reduced dimensions and especially suitable for indoor and outdoor installation working with voltages up to 550 kV. The medium voltage products up to 36 kV are constituted by a single compacted block, fully encapsulated in epoxy resin while the high voltage from 69 kV up to 550 kV are insulated with kraft and crepe paper impregnated in mineral or synthetic oil involved by a porcelain insulator (polymeric to be developed) with a creepage distance appropriate to the environmental conditions of operation, ensuring excellent thermal and dynamic stability. The transformers may be supplied with one or more secondary windings, for services of operational metering or revenue and relaying. The technology applied in our products complies with national and international technical standards. The Metering Device Set, specially designed to combat frauds, is basically composed of three elements with a Current Transformers and a Potential Transformers per phase in a single block of epoxy resin, mounted in a metallic box containing energy metering, telemetry system, calibration switch, door opening and presence sensor and other accessories.