As society advances swiftly toward the future, electric energy is an integral part of such progress. Insulators play a key role in supplying this electric energy safely and dependably. NGK provides reliable products in every field of electric energy as well as manufacturing electrical insulators.
We manufacture a variety of insulators for large-capacity transmission lines, which are subject to severe operating conditions such as heavy contamination and earthquakes. NGK's bushing shell for 1,000-kV ultrahigh-voltage (UHV) transmission systems is the world's largest porcelain product, with a height of 11.5 meters and a maximum diameter of 1.6 meters. These insulators, distributed throughout the world, are manufactured using the latest technologies and are acclaimed worldwide for their incorporation of advanced technologies and high quality. NGK has also developed products such as transmission line arresters and insulator washing equipment that prevents insulator performance from deteriorating by contamination. These products contribute to the reliability of power supply.
Demand for electric power fluctuates from day to night and also from season to season. By storing energy more efficiently, we can absorb these fluctuations and reduce wasted energy. Using fine ceramics technologies, NGK has developed a NAS (sodium sulfur) battery system that enables efficient electrical power storage.