Load switch cabinet mechanism
- Product Description
-
First, the standard three-station design (optional two stations), in line with the requirements of "GB3804-2017 3 ~ 63kV AC high-voltage load switch"
Second, the mature arc-extinguishing grid design ensures that the closing and arc-extinguishing arc is stable and reliable.
Third, select the disc spring to ensure that the contact pressure is stable and reliable for a long time.
Fourth, the plastic arm is subjected to low temperature experiments to ensure that it does not rupture or crack under low temperature conditions.
5. Reserve the grounding circuit copper bus interface to strengthen the grounding circuit closing and current withstand capability as needed.
Sixth, the grounding switch form is optional
Details
|
序號 |
負荷開關電氣參數 |
|
|
1. |
相間中心距 |
150mm±2 |
|
2. |
三相合閘不同期 |
≤2ms |
|
3. |
三相分閘不同期 |
≤2ms |
|
4. |
合閘彈跳 |
≤2ms |
|
5. |
分閘彈跳 |
≤2ms |
|
6. |
合閘速度 |
≥3m/s |
|
7. |
分閘速度 |
≥3m/s |
|
8. |
工頻耐壓 |
42/45kV |
|
9. |
雷電沖擊電壓 |
75/85kV |
|
10. |
機械壽命(負荷開關/接地開關) |
5000/3000次 |
|
11. |
電氣壽命 |
E3級 |
|
12. |
主回路電阻 |
≤150μΩ |
|
13. |
動熱穩定性及峰值耐受電流 |
20kA/4S，20KA |
|
14. |
溫升 |
1.1x630A |