ZW32-12 series outdoor high voltage vacuum circuit breaker is an outdoor power distribution equipment with rated voltage of 12kV and three-phase AC of 50/6OHz.It is mainly used for breaking and closing load current, overload current and short circuit current in power system. It is suitable for protection and control in substation, rural power grid and distribution system of industrial and mining enterprises.
The product can adopt spring operating mechanism, permanent magnet operating mechanism (zW32-12M type) or spring / permanent magnet double mechanism to meet the needs of different occasions. It is an ideal product for distribution line transformation and distribution automation construction.
Ambient Temperature: No more than +40℃ and no less than -40'℃. Average temperature is no more than +35℃ within 24 hours.
Altitude: No more than 1000m.
Relative Humidity: the average daily value is no more than 95%, the average monthly value is no more than 90%.
Earthquake intensity: No more than 8 degrees wind pressure: No more than 700Pa.
Vapor pressure: average daily value is no more than 2.2kPa, average monthly value is no more than 1.8kPa.
Installation locations without fire, explosion danger, serious pollution, chemical corrosion and violent vibration.
The vacuum interrupter is connected with the operating mechanism through insulating pull rod, which has stable and reliable performance.
The vacuum interrupter, main circuit and insulation support are made of epoxy resin by APG process, which has good anti condensation performance and mechanical strength, and has the characteristics of high and low temperature resistance, UV resistance and aging resistance.
The shell is made of high-quality stainless-steel plate with high strength and corrosion resistance.
lt can be equipped with control terminal interface, which is suitable for automatic distribution network and unattended substation.
| No. | Content | Unit | Value | ||
| 1 | Rated Voltage | kV | 12 | ||
| 2 | Rated Frequency | Hz | 50/60 | ||
| 3 | Rated Insulation level | Power Frequency Withstand voltage in 1 min | kV | 42 | |
| Lightning impulse Withstand voltage (Peak) | 75 | ||||
| 4 | Rated Short-circuit Breaking Current | kA | 20 | 25 | |
| 5 | Rated Current | A | 630 | ||
| 6 | Rated Short-time Withstand Current | kA | 20 | 25 | |
| 7 | Rated Peak withstand Current | 50 | 63 | ||
| 8 | Rated Short Circuit Making Current | 50 | 63 | ||
| 9 | Opening time | ms | 20-50 | ||
| 10 | Closing time | ms | 35-70 | ||
| 11 | Mechanical life | times | 30000/3000(Circuit Breaker/Disconnector) | ||
| 12 | Operation mode | Manual/Electric | |||
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