Composite Insulators

Grantel Equipamentos Composite Insulators


​With the aim to provide a new quality option in the South American market, Grantel Equipamentos expands once again its variety of products. We are importing and distributing composite insulators from CYG, which is considered one of the best world manufacturers in its field.

The Grantel-CYG partnership has various types of composite insulators for sale: Suspension, station post, line posts and phase spacers, among others.

Our technical staff that is already experienced in the “tropicalization” of products, always with the same philosophy of quality and professionalism at competitive prices, conducted an analysis in China to find our new representative, from whom we are authorized to sell all over Brazil and Latin America.

The CYG has the international certificates ISO 9001, 14001 and 18001, which ensures the quality of services of the manufacturer. Some of the countries to which CYG has supplied insulators aside from China are: Brazil, England, Italy and Spain.

View Catalog of Composite Insulators - Suspension

Field Applications

There are over 3 million parts in operation counted as from the foundation of the factory to December 2008, namely:

  • Over 140 thousand insulators at 500 kV alternating current;
  • Over 13 thousand insulators at 500 kV direct current;
  • Over 5 thousand insulators at 750 kV alternating current;box-cotacao-ing
  • 3600 insulators in operation at 100 kV alternating current;
  • 6356 insulators at 800 kV direct current.

The composite insulators produced by CYG are installed in various service conditions:

  • Plateau – Altitudes between 3000 and 4000 meters;
  • Desert;
  • Coastal areas;
  • Areas covered by ice – Temperatures between – 45 and + 45° C;

Among the various supplies made, the factory supplied composite insulators for the first compact dual circuit of 500 kV in China – Project 3 Gorges, Zhengyi Transmission Line.

Technical Highlights

The factory has an above average quality system, the products complete traceability can be easily observed with its barcode (each product has a unique barcode) in addition to a laser marking.