Guangdong Yufeng Industries Co., Ltd.
Guangdong Yufeng Industries Co., Ltd.

21kV Surge Arrester

A new structure integrating lightning arresters and insulators has been realized, and the product has the functions of insulation support and lightning protection.

Using large current ZnO resistors, the current performance is increased to 100kA.

By adopting large and small "flower arrangement" arrangements and increasing the creepage distance of sheds, the voltages of ice flash, rain flash and pollution flash under D-level pollution conditions are increased by 30%, 50% and 27% respectively.

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Specification of 21kV Medium Voltage Surge Arrester

Rated voltage17kV
Nominal discharge current10kA
2ms square wave current400A
1mA reference voltage25kV
4/10μs high current impulseUp to 120kA
Power frequency humidity tolerance voltageNot less than 13kV

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