Distribution series Lightning arrester
A distribution series lightning arrester is a crucial component in electrical systems designed to protect equipment and facilities from damage caused by lightning strikes and transient voltage surges. These devices are typically installed at various points in the electrical distribution network to divert excess electrical energy safely to the ground.
Technology parameter：
| Gapless arrester | ||||||||||
| System nominal voltage (kV) | Arrester Type | Rated voltage (kV) | Arrester continuous operating voltage (kV) | Dc 1mA reference voltage (kV) | Maximum leakage at 0.75x DC 1mA voltage (μA) | Peak residual voltage (kV)≯ | 2000 μs square wave current capacity (A) | 4/10 high current impulse withstand (kV) | ||
| 8/20 lightning impulse current | 30/60 operation impulse current | 1/4 steep impulse current | ||||||||
| 3 | (HY)YH5WS-3.8/15 | 3.8 | 2.0 | 7.5 | 50.0 | 15 | 12.8 | 17.3 | 75 | 40 |
| 3 | (HY)YH5WS-5/15 | 5 | 4.0 | 7.5 | 50.0 | 13.5 | 12.8 | 17.3 | 75 | 40 |
| 6 | (HY)YH5WS7.6/30 | 7.6 | 4.0 | 15.0 | 50.0 | 30 | 25.6 | 34.6 | 75 | 40 |
| 6 | (HY)YH5WS-10/30 | 10 | 8.0 | 15.0 | 50.0 | 30 | 25.6 | 34.6 | 75 | 40 |
| 10 | (HY)YH5WS12.7/50 | 12.7 | 6.6 | 25.0 | 50.0 | 50 | 42.5 | 57.7 | 75 | 40 |
| 10 | (HY)YH5WS-17/50 | 17 | 13.6 | 25.0 | 50.0 | 45 | 42.5 | 57.5 | 75 | 40 |
| 20 | HY5WS-6/72 | 26 | 20.8 | 37.0 | – | 72 | 65 | 85 | 400 | 65 |
| 20 | HY5WS-34/95 | 34 | 27.2 | 48.0 | – | 95 | 85 | 105 | 400 | 65 |
| Series gap arrester | ||||||||||
| System nominal voltage (kV) | Arrester Type | Rated voltage (kV) | Power frequency discharge voltage(kV) ≮ | 1.2/50 impulse discharge voltage (kV) peak value ≯ | Maximum conducting current(μA) | Peak residual voltage (kV)≯ | 2000 μs square wave current capacity (A) | 4/10 high current impulse withstand (kV) | ||
| 8/20 lightning impulse current | 30/60 operation impulse current | 1/4 steep impulse current | ||||||||
| 3 | (HY)YH5CS-3.8/13.5 | 3.8 | 9.0 | 13.5 | 20 | 13.5 | 11.4 | 15 | 75 | 40 |
| 6 | (HY)YH5CS-7.6/27 | 7.6 | 16.0 | 27.0 | 20 | 27 | 22.5 | 30 | 75 | 40 |
| 10 | (HY)YH5CS12.7/45 | 12.7 | 26.0 | 45.0 | 20 | 45 | 38.4 | 51 | 75 | 40 |
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