JSC Polymer-Apparat

Our company Polymer-Apparat produces surge arrester since 1991. During operational process, not only the operating voltage of industrial frequency, but also all kinds of overvoltage affect the isolation of all electrical appliances. Overvoltage can be caused by switching of power grids or under the influence of lightning currents. Repeated exposure to surge can lead to rupture or closure of isolation as well as gradual ageing of isolation and premature failure of equipment. Lightning surges repeatedly exceed permissible voltage and may damage the isolation of new equipment, even with a single exposure. Limiting surge reduces the costs of transmission and distribution of electric energy.