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Product Name：Circuit Breaker
System Voltage：12kV
Application Place：Distribution System
Product Structure：Spring Mechanism、Permanentmagnet Mechanism
Arcing Medium:  Vacuum Type
Technical Data：
No. Item Unit Data
1 Rated Voltage kV 12
2 Rated Frequency Hz 50
3 Rated Current A 630
4 Rated Circuit-breaking Current kA 25
5 Rated Peak Withstand Current kA 63
6 Rated Short-time Withstand Current  kA 25
7 Rated Circuit-Closing Current(peak) kA 63
8 Mechanical Operating Times time 10000
9 Rated Circuit-breaking Current Breaking  times time 30
10 1min Power Frequency Withstand Voltage kV Phase to earth 42
            to break 48
11 Lightning Impulse Withstand Voltage(peak) kV Phase to earth 75
            to break 85
12 Rated Cable-charging Current A 25
Assembly-adjusting Data：
No. Item Unit Data
1 Contact Distance mm 9±1
2 Overtravel mm 3.0±0.5
3 Mean Closing Speed m/s 0.75±0.2
4 Mean Opening Speed m/s 1.25±0.2
5 Closing Time ms ≤60
6 Opening Time ms 20～60
7 Closeing at different time ms ≤2
8 O[ening at different time ms ≤2
9 Contact Spring at Closing ms ≤2
 

Shanghai Electric Porcelain Works Co., Ltd
Add: No.729, Chengjiang Rd., Minhang Dist., Shanghai, P.R.China Zip:200241　  Email:sepw@sepw.com.cn  
 Tel：021-64343295    Fax：021-64345735   ICP: No.09053323-1   Web Designer:12EC.CN