Load switch cabinet mechanism
- Product Description
-
First, the standard three-station design meets the requirements of "GB3804-2017 3~63kV AC high-voltage load switch"
Second, the natural "five-proof" design (the load switch can be connected to the grounding switch after opening; the grounding switch can be combined with the load switch), mechanical and electrical double interlock
Third, the design has interlocking with the lower door panel (close the upper and lower door panels to separate the grounding switch; the grounding switch is closed to open the lower door panel), mechanical and electrical double interlocking
Fourth, the design has interlocking with the operating handle (the electric control loop is automatically cut off after the operating handle is inserted)
5. Redesigned door panel hard interlock, cancel the original steel wire (or plastic wire) design, interlocking is more reliable and stable
Details
|
序号 |
负荷开关电气参数 |
|
|
1. |
相间中心距 |
150mm±2 |
|
2. |
三相合闸不同期 |
≤2ms |
|
3. |
三相分闸不同期 |
≤2ms |
|
4. |
合闸弹跳 |
≤2ms |
|
5. |
分闸弹跳 |
≤2ms |
|
6. |
合闸速度 |
≥3m/s |
|
7. |
分闸速度 |
≥3m/s |
|
8. |
工频耐压 |
42/45kV |
|
9. |
雷电冲击电压 |
75/85kV |
|
10. |
机械寿命(负荷开关/接地开关) |
5000/3000次 |
|
11. |
电气寿命 |
E3级 |
|
12. |
主回路电阻 |
≤150μΩ |
|
13. |
动热稳定性及峰值耐受电流 |
20kA/4S，20KA |
|
14. |
温升 |
1.1x630A |