Active Member
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[China]
Address: 1107B Huidong Building, Wenhua East Road, Shandong, China
Contact name:Li Zheng
Shandong Green World International Trading Co., Ltd. |
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General:
ZW20-12 outdoor pole-mounting vacuum circuit breaker uses vacuum arc-extinguish chamber to arc-extinguish, and SF6 as insulation medium. It is rated voltage 12kv, three-phase AC 50HZ outdoor power distribution device. It is mainly used in breaking, opening power grid’s load current. It is used in substation, industrial mining enterprise, rural power grid. It can satisfy auto-system of power distribution and match with controller.
The usage environment:
Altitude: more than 2000M; pollution grade: Ⅳ
Air temperature:－40°C~＋40°C;difference in temperature:diurnal variation 25C;
Wind speed: no more than 35m/s; earthquake intensity: no more than 8;
Site: without inflammable; without explosion hazard; without corrosive;
The main technical parameters:
No. | Item | Unit | Parameter |
1 | Rated Voltage | kV | 12 |
2 | Rated Current | A | 630 |
3 | Rated Frequency | Hz | 50 |
4 | Rated Short Circuit Breaking Current(Effective Value) | kA | 20 |
5 | The breaking times of rated short-circuit breaking current | Time | 30 |
6 | Rated Peak Withstand Current(Peak) | kA | 50 |
7 | Rated Short Time Withstand Current(4S) | kA | 20 |
8 | Rated Short-circuit Making Current(Peak) | kA | 50 |
9 | (1min)power frequency withstand voltage | kV | 42/49 |
10 | Lighting Impulse Withstand Voltage(peak) | kV | 75/85 |
11 | (1min) Power Frequency Withstand Voltage to secondary loop
| kV | 2 |
12 | Mechanical Life
| Time | 10000 |
13 | SF6 gas rated voltage(gage pressure) | Mpa | “0” |
14 | SF6 gas leakage rate/year | ≤ | 0.5% |
15 | Weight of switch | kg | 168 |
16 | Volume of switch(including package box) 1300mm×900mm×880mm | ||
