China Vib- 24kv 630A 20ka Indoor Hv Vacuum Circuit Breaker Vcb, Find details about China Vacuum Circuit Breaker, Hv Circuit Breaker from Vib- 24kv 630A 20ka Indoor Hv Vacuum Circuit Breaker Vcb
S.N | Name | Unit | Data | ||||||
1 | Rated voltage | kV | 24 | ||||||
2 | Rated insulation level | Rated power frequency withstand voltage 1min | kV | 65 | |||||
Rated lightning impulse withstand voltage | kV | 125 | |||||||
3 | Rated current | A | 630 | 1250 | 1600 | 2000 | 2500 | 3150 | |
4 | Rated frequency | Hz | 50 | ||||||
5 | Rated short breaking current Rated short time withstand current | kA | 20 | 25 | 31.5 | ||||
6 | Rated short circuit making current(peak) Rated peak withstand current | kA | 50 | 63 | 80 | ||||
7 | Rated short-circuit duration | s | 4 | ||||||
8 | Clearance between open contacts | mm | 13±1 | ||||||
9 | Overtravel | mm | 3.5±0.5 | ||||||
10 | Contact bouncing duration at closing opening | ms | ≤2/≤3(2000-31.5 and above) | ||||||
11 | Out of simultaneity of CO operation of three poles | ms | ≤2 | ||||||
12 | Opening time | ms | 20~50 | ||||||
13 | Closing time | ms | 30~70 | ||||||
14 | Average opening speed | m/s | 1.1~1.6 | ||||||
15 | Average closing speed | m/s | 0.5~1.0 | ||||||
16 | Rated operating sequence | O-0.3s-CO-180s-CO |