Surge arrester YH10CX-180/520

1, The line arrester with external series gaps The line arrester with external series gaps,which is parallel installation and operation with line insulators, can effectively reduce the lightning trip out rate of accidents,especially in the line segments,strong lightning activity or difficult to reduce the grounding resistance of the tower. 2, Competitive Advantages The line arrester with external series gaps, has the advantages of small discharge, good sealing performance, explosion proof, dirt resistance, small volume, light weight, convenient transportation and installation.For the line arrester with external series gaps, the working principles are as follws: In the normal operation of the system, the body is basically in a state of "rest", and with the isolation effect of series gaps,most of the power frequency voltage is bear by series gaps. Due the withstand characteristics of series gap,at the frequency and operation voltage, the arrester will be without action, but the series gaps will be breakdown discharge,and then the arrester operate and limit lightning overvoltage, ensure there is no flashover for the protected line insulators (strings). And after the lightning impulse, the power frequency continuous current will be reliably cut off by series gaps,and the power frequency system restore normal operation. Ambient conditions of operation a. Ambient temperature : -40℃～+40℃. b. Altitude : no exceeding 2,000m. c. Power frequency : 48Hz～62Hz. d. Earthquake intensity : no exceeding 8.