surge arresters

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48KV 10kA Polymer Lightning Arrester

42KV 10kA Polymer Surge Arrester

Model YH10W-42C1080

M.V. Polymer Surge Arresters are used to protect transformers and other equipments in station and distribution systems against the damage by atmospheric (especially lightning effects) and operational conditions.
oxides of metals Gapless surge arresters are intended to stop potential harm from occurring in the event of common energy system surges, without affecting the system at normal operation voltage. Due to the non-linear properties of metal-oxide varistors between the voltage and current scales, gapless arresters have this unique feature. When compared to silicon carbide surge arresters, the non-linear feature is significantly greater.

product details

NORMAL SERVICE CONDITIONS

1.The ambient temperature: -40°C ~+40°C

2.The altitude above sea level :not exceed 1000-2000m (the altiplano area should be indicated when order)

3.Earthquake intensity: not higher than 7 degrees;

4.Maximum wind velocity :less than 35m/s.

5.The filthy area should be given clear indication.

PRODUCT FEATURE

The zinc oxide lightning arrester is the most advanced over-voltage protector in the world. Due to make the resistor disc of core component mainly adopt zinc oxide arrester. Compared with the conventional silicon carbide arrester, this prescription of the product improves greatly the volt-ampere characteristics of the resistor disc and increase through- current capability at over-voltage so as to bring a rad local-changes for the characteristics of the arresters.

* Rated Voltage(Ur): 42kV

* Nominal Discharge Current(In): 10kA

*Max. Continuous Operating Voltage (Uc): 34KV

*Frequency: 50/60Hz

*Max. Residual Voltage Corresponding to

a) Steep Current Impulse: 134KV

b) Lightning Impulse Level at Nominal discharge current: 126kV

c) Switching Current Impulse Level: 97kV

* 4/10 μs High Current Impulse(Imax): 100kA

* Creepage distance: 1080mm