主要技术参数 Main technique parameter
|
No. |
参数名称 Parameter name |
单位 Unit |
数值 Value |
|
|
1. |
额定电压 Rated voltage |
KV |
1.14 |
|
|
2. |
额定电流 Rated current |
A |
250 |
|
|
3. |
额定频率 Rated frequency |
Hz |
50 |
|
|
4. |
额定接通电流 Rated making current |
A |
2500 |
|
|
5. |
额定分断电流 Rated breaking current |
A |
2000 |
|
|
6. |
极限分断电流 Limiting breaking current |
A |
2500 |
|
|
7. |
额定短时耐受电流 Rated short time withstand current |
A |
2000 |
|
|
8. |
额定短时工频耐压 Rated short time power frequency withstand voltage (1 minute) |
KV |
10 |
|
|
9. |
机械寿命 Mechanical life |
1×104 Operations |
100 |
|
|
10. |
额定分断次数 Rated breaking operations |
AC3 |
1×104 Operations |
15 |
|
AC4 |
1×104 Operations |
0.6 |
||
|
11. |
触头自闭力 Automatic closing force of the contaCTs |
N |
50±10 |
|
|
12. |
额定开距时的触头反力 Force required to hold the contacts opening at full stroke |
N |
70±10 |
|
|
13. |
触头自闭力下的回路电阻 Circuit resistance under minimum contacts force |
μΩ |
≤120 |
|
|
14. |
触头允许磨损厚度 Limiting abrasion thickness of the contacts |
mm |
2 |
|
|
15. |
允许储存期Storage life |
Year |
20 |
|
|
16. |
内部气体压力 Internal gas pressure |
Pa |
≤1.33×10-3 |
|
配用接触器的机械参数 Vacuum contactor technical specifications
|
No. |
项目 Items |
单位 Unit |
数值 Value |
|
1. |
触头开距 Clearance between opening contacts |
mm |
2±0.2 |
|
2. |
触头接触行程 Contacts travel |
mm |
1±0.2 |
|
3. |
平均分闸速度 Average opening speed |
m/s |
0.6±0.1 |
|
4. |
平均合闸速度 Average closing speed |
m/s |
0.3±0.1 |
|
5. |
额定触头压力 Rated contacts pressure |
N |
100±20 |
|
6. |
触头合闸弹跳时间 Contacts bouncing duration at closing operation |
ms |
≤ 2 |
|
7. |
合闸同期性 Closing synchronism |
ms |
≤ 2 |
|
8. |
分闸触头反弹幅值 Contacts re-bouncing clearance at opening operation |
mm |
≤ 1 |

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