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Search results with tag "Insulated switch gear"
High-voltage surge arresters - Siemens
assets.new.siemens.comgas-insulated and metal- encapsulated surge arrester for gas-insulated switch-gear (GIS). 1925 Siemens begins developing surge arresters. The first devices are of the so-called cathode drop type. 1989 The 3EQ2 surge arrester for systems of up to 550 kV is one of the first high-volt-age surge arresters with composite polymer hollow core housing ...