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

35kV Surge Arrester

The structure with gap is adopted. During normal operation, the insulation gap bears the operating voltage, and the ZnO resistor sheet does not bear the voltage, so there is no ageing problem.


Installed and used in parallel with the insulator, the current passing performance is improved to 120kA, and the lightning protection level of the line is significantly improved. (Take the multiple minefields of C1 and above as an example, the lightning trip rate of the 35kV line is 8-12 times /(100km·a) before lightning protection transformation is carried out, and the lightning trip rate drops to 0.45 times /100km· an after the application of 35kV big flow gap arrester.)

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lighting arrester and surge arrester
surge arrester definition
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surge arrester definition
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Specification of 35kV Medium Voltage Surge Arrester


Nominal System Voltage35kV
Application PlaceMedium-voltage system; For power station, transmission and distribution line
Maximum System Voltage40.5
Rated Voltage (KV)51
Nominal Discharge Current (kA)10
Line Discharge Class2
Energy Absorption Capacity KJ/KV at Ur4.5
2ms Long Duration current impulse (A)500
Short Circuit Current Rating (kA)20
Material of Housingsilicone rubber
Structure DesignFibreglass filament Mesh winding core, and then injection silicon rubber
directly
Pressure release deviceWith



Advantages of 35kV Medium Voltage Surge Arrester

  • A new structure integrating lightning arrester and insulator 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 130kA, which is more than 50% higher than that of ordinary arresters, and the lightning tripping rate is significantly reduced. Taking Hunan as an example, compared with the lightning trip rate of 8.0 times/(100km•a) before the application, the lightning trip rate after the application of the 35kV line (without ground wire) is lower than 0.36 times/(100km•a).

  • The lightning protection section is equipped with protective devices. When the lightning current exceeds the design value, the protection device operates to effectively prevent the resistor from being damaged by lightning current and product damage.

  • The installation is simple and convenient, no special grounding treatment is required, and it only needs to meet the natural grounding requirements of the tower.


Please Contact YF Power!

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