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GIS With Tank Metal Oxide Surge Arrester

Product summary:
With 96 ~ 444kV GIS arrester, and sulfur hexafluoride gas insulation, internal metal oxide varistor as the main components.
Metal oxide varistor has excellent non-linear voltage characteristics and steep wave response characteristics. Mainly used to protect the power system electrical equipment from overvoltage damage.

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Product name:
Gas-insulated metal enclosed(GIS)surge arresters
(belongs to class surge arresters)
Product summary:
With 96 ~ 444kV GIS arrester, and sulfur hexafluoride gas insulation, internal metal oxide varistor as the main components.
Metal oxide varistor has excellent non-linear voltage characteristics and steep wave response characteristics. Mainly used to protect the power system electrical equipment from overvoltage damage.
Product feature:
GIS surge arresters have the merits such as superior protective performance,advanced technical performance, high reliability,little amount of maintenance work and convenient installation.
Their excellent response characteristics to steep wave,especially the low residual voltage at steep wave caused by GIS surge arrester will greatly benefit the protection for GIS equipment which has a flat voltage-current characteristic.

type

rated 

voltage
(kvrms)

continuos 
operating 
voltage(kvrms)
dc.reference
voltage≥kv
≤kv residual voltage 2ms 
rectangular 
withstand
Full-wave 
impulse
withstand
voltage
kvrms 1min 
power-frequency 
withstand voltage

8/20us 

lightning
impulse

1/10us 

steep
impulse

Y20WF-444/1106 444 335 597 1106 907 2000 1550 680
Y20WF-420/1046 420 335 565 1046 1170 2500 1550 680
Y20WF-200/520 200 156 290 520 442 800 1050 460
Y20WF-198/485 198 154 289 485 538 1000 1050 460
Y20WF-192/480 192 150 280 480 532 1000 1050 460
Y20WF-108/281 108 84 157 281 315 800 550 230
Y20WF-102/260 102 79.6 148 266 297 800 550 230
Y20WF-100/260 100 78 145 260 221 800 550 230
Y20WF-96/250 96 75 140 250 288 600 550 230

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