Hyosung Develops High Voltage Circuit Breaker

Hyosung has developed an advanced circuit breaker, for the first time in the country's history, that can be used in high voltage electricity transmission. The company's new 1,100-kilovolt gas insulated switchgear (GIS) ― the second of its kind in the world after Japan ― has not yet been commercialized, but has potential to be widely utilized in China and other countries with a large landmass for long-distance electricity supply.

Hyosung said its new circuit breaker, which prevents electrical overload in the transmission of high voltage electricity over 1,000 kilovolt/amperes, will be in high demand as China, India and other emerging economies are planning to build high voltage electricity supply network

s to meet growing power needs.

It estimates the market for high voltage circuit breakers will reach $6.5 billion over the next 15 years worldwide and plans to first target Asia. Hyosung executives said the development of 1,100-kilovolt GIS shows the company holds top-notch technology in high voltage circuit breaker manufacturing, adding it will introduce advanced transformers and other parts.