Nanyang Jinguan Electric Co.,Ltd. is the largest core enterprise specializing in the production of metal oxide surge arresters. We have been authenticated as excellent supplier by both China State Grid and China Southern Power Grid. We are a state-level high-tech enterprise, innovative pilot enterprise in Henan province and one of the top 100 high-growth enterprises in Henan province. Our company registered capital of 60 million HK *s, the existing total assets is 337 million RMB. We are a Sino-foreign joint venture, with four modern workshops for production and assembling. Total area of building is 4680 square meters. We have one 750kV test hall and one 1000kV test hall, and 2000kV impulse test device. We have the ability of design, research and development, manufacturing and quality inspection, marketing independently. We began to research and develop zinc oxide varistor and metal oxide surge arrester since the year 1979. Now we have the annual production capacity of ?32??128 AC, DC zinc oxide varistors 4.5 million pieces; AC 0.22kV-1000kV metal oxide surge arrester 500000 pieces; DC ?00kV EHV(extra-high voltage) surge arrester 50000 pieces; surge counter 60000 pieces. All products pass through ISO9001, German TUV quality system certification and ISO14001 environmental system certification. Our 3-36kV polymer housed surge arrester, 110kV&220kV porcelain housed surge arrester, and 500kV porcelain surge arrester have passed Holland KEMA tests. According to the statistics from Chinese national authority branch, our metal oxide surge arresters share more than 35% domestic market for fifteen years, including 500kV surge arrester market share is above 50% and more than 5000 phases running on grids; (110~220)kV surge arrester market share is above 43% and more than 180000 phases running on grids. (35~500)kV current transformer and voltage transformer market share is above 12% and more than 3800 phases running on grids.
