Description

Metal-oxide lightning arrester
1. KEMA certification;
2. ISO***1 quality management system;
3. Own test laboratory;

Metal-oxide surge arrester(Lightning arrster, polymer surge arrster)
Technical Performance
The technical performance of metal-oxide surge arrester is accord with IEC******4 and IEEE(ANSI)C*2.*1. The product certification through KEMA Nederland B. V. T&D Testing Services.

Structural Design
The module core design was developing in the early *0s and has over *5 years service experience, with the housing material changing in the early *0s.
The modular single column polymer housing metal-oxide surge arrester design is available up to **0kV systems.
The essential feature of the internal patented construction is the permanent homogenous resin and fiberglass bond over the complete insulating service of the metal-oxide varistor, the arrester module has an inherently high mechanical strength and provides a uniform dielectric at the insulating surface of the metal-oxide varistor.

Advantage

- Low residual voltage
- Long protection distance
- High energy input capacity
- Stable U-I characteristics even after multiple strokes
- Proof against ageing
- Explosion and shatter-resistant design
- Pollution resistant and UV-stable
- Housing resistant to rough handling
- Maintenance free
- Stable against shock and vibration
- High mechanical resistance

Main Technical PARA meter of Polymer Housing Metal-oxide Surge Arrester
(YH*0W**6kV E2)
1. Rated Voltage (Ur): *6Kv
2. Nominal discharge current (In): *0kA
3. Maximum continuous operating voltage (Uc): *9kV
4. Housing insulation withstand
-Lightning impulse: **0 kV
-Power frequency (wet): *5 kV
5. Residual voltage at
-Lightning impulse 8/*0us: **8 kV
-Steep current impulse 1/*0 us: **4.2 kV
-Switching impulse *0/*0 us: *1.8 kV
-Switching surge(Peak current): **0A
6. High current impulse withstand value (4/*0us): **0kA
7. Total creepage distance (Minimum): *5mm/kV