Overview of and trends in gas-insulated switchgear in response to various requirements

摘要

Demand for electric power in Japan is growing rapidly in line with the firm growth of the economy and improvements in the quality of life. To meet this expanding demand for electricity, gas-insulated switchgear (GIS) with higher voltage andcapacity have been developed as well as other equipment in the power transmission network. In addition, improved reliability and maintainability are required for GIS in order to enhance the quality of electricity supply. Harmony with the environment isalso highlighted when we develop a new technology.This paper provides an overview of and trends in GIS technologies in response to various requirements.