Gapless Surge Arrester

Gapless surge arresters feature simple structure, fast response, excellent protection characteristics, and continuous monitoring. They can be divided into porcelain-shell type and silicone-rubber-shell type according to the casing type.

Safe non-shattering design
  • Suitable for installation in polluted environments
  • Silicone directly moulded to ZnO resistors
Product model System voltage kV Rated voltage kV 1mA DC reference voltage is not less than kV 8/20μs lightning residual voltage is not greater than kVp Operating residual pressure is not greater than kVp The steep wave residual pressure is not greater than kVp 2ms square wave flow capacity 4/10us high current shock resistance
YH5WX-51/134 35 51 73 134 114 154 400 100
YH5WX-54/142 35 54 78 142 114 154 400 100
YH5WX-96/250 66 96 140 250 202 279 400 100
YH10WX96/250 66 96 140 250 202 279 400 100
YH10WX102/266 110 102 148 266 225 297 600 100
YH10WX108/281 110 108 157 281 239 314 600 100
YH10WX204/532 220 204 296 532 450 594 800 100
YH10WX216/562 220 216 314 562 478 628 800 100
YH20WX444/1106 500 444 597 1106 907 1238 1800 100
YH20WX468/1166 500 468 630 1166 956 1306 1800 100

 

Suspended gapless line arrester is used to protect single conductor.

Suspension gap-free line arrester is used to protect double-circuit conductors.

Seat-type gapless line arrester in transmission line

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