Technical Performance
The technical performance of metal-oxide surge arresters is in accordance with IEC 60099-4 and IEEE (ANSI) C62.11.
Structural Design
The module core design was developed in the early 80s and has over 15 years of service experience, with the housing material changing in the early 90s.
The modular single-column polymer housing metal-oxide surge arrester design is available for up to 220 kV 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
stable against shock and vibration
High mechanical resistance
Technical Details:
| Metal oxide polymer housing (non -gap) type of lightning offer (5KA) | ||||||
|---|---|---|---|---|---|---|
| Rating voltage, KV | 9 | 12.0 | 15.0 | 21.0 | 24.0 | 36.0 |
| MCOV， kV | 7.75 | 10.2 | 12.5 | 17.0 | 20.0 | 30.0 |
| Rating current input, KA | 5 | |||||
| Current to withstand 4/10 μs, KA | 65 | |||||
| Current to withstand 2ms, A | 150 | |||||
| 8/20 μs current pulse residual voltage, KV | 27 | 36.0 | 45.0 | 63.0 | 72.0 | 108.0 |
| The residual voltage of 30/60 μs current pulse, KV | 24 | 32.0 | 40.0 | 56.0 | 64.0 | 96.0 |
| Work frequency resistance (wet) KV | 25 | 35.0 | 35.0 | 55.0 | 65.0 | 185.0 |
| Maximum energy discharge capacity KJ/KV -UC | 2.8 Level 1 (IEC 60099-4) | |||||
| Power climbing distance, millimeter | 450 | 550.0 | 550.0 | 750.0 | 850.0 | 1160.0 |
| Length H, mm | 260 | 290.0 | 290.0 | 350.0 | 381.0 | 470.0 |
| Arc distance H, mm | 150 | 180.0 | 180.0 | 240.0 | 271.0 | 360.0 |
| Metal oxide polymer housing (non -gap) type of lightning arrester (10KA) | ||||||
| The rated voltage UR, KV | 9 | 12.0 | 15.0 | 21.0 | 24.0 | 36.0 |
| MCOV， kV | 7.75 | 10.2 | 12.5 | 17.0 | 20.0 | 30.0 |
| Rating current input, KA | 10 | |||||
| Current to withstand 4/10 μs, KA | 100 | |||||
| Current to withstand 2ms, A | 250 | |||||
| 8/20 μs current pulse residual voltage, KV | 27 | 36.0 | 45.0 | 63.0 | 72.0 | 108.0 |
| The residual voltage of 30/60 μs current pulse, KV | 24 | 32.0 | 40.0 | 56.0 | 64.0 | 96.0 |
| Work frequency resistance (wet) KV | 25 | 35.0 | 35.0 | 55.0 | 65.0 | 185.0 |
| Maximum energy discharge capacity KJ/KV -UC | 2.1 level 1 (IEC 60099-4) | |||||
| Power climbing distance, millimeter | 450 | 550.0 | 550.0 | 750.0 | 850.0 | 1160.0 |
| Length H, mm | 260 | 290.0 | 290.0 | 350.0 | 381.0 | 470.0 |
| Arc distance H, mm | 150 | 180.0 | 180.0 | 240.0 | 271.0 | 360.0 |
