ZW7-40.5 Outdoor Vacuum Circuit Breaker
ZW7-40.5 series outdoor AC vacuum circuit breaker is one new circuit breaker with high quality manufactured which is developed on basis of absorbing world advanced technique and taking power net actual circumstance in our country into account. This product owns many advantages asrational designing, strong complete capacity, novel appearance,safe&reliable, easily maintaining, long electric endurance etc, it is one perfect equipment replacing 35kv outdoor dead tank oilcircuit breaker, which has achieved international level of 1990s.
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ZW7-40.5 model outdoor AC vacuum breaker is control and protective equipment of power net, which is applied to AC 50Hz three-phase power system, to be used for breaking and making load current, overload current and short current.
Operating Conditions
1. Altitude: ≤ 4000 meters
2. The environment temperature: upper limit +40℃, lower limit -30℃(the lower limit is -40℃ in server cold zone)
3. Wind speed: < 34m/s
4.Temperature difference: less than 25℃
5. Pollution grade: IV class
6. Certain place without fire, explosion danger, chemical corrosion or violent vibration.
Technical Data
| Item | Unit | Parameter | ||||
| Rated voltage | kV | 40.5 | ||||
| Rated current | A | 1600 | ||||
| Rated short-circuit breaking current | kA | 20 | 25 | 31.5 | ||
| Rated short making current(peak value) | 5031.5 | 63 | 80 | |||
| Rated short-time withstand current | 20 | 25 | 31.5 | |||
| Rated peak-value withstand current | 50 | 63 | 80 | |||
| Rated operating sequence | O-0.3s-CO-180s-CO | |||||
| Rated short-circuit sustained time | s | 4 | ||||
| Rated insulation level | 1min power frequency withstand voltage | dry test | kV | 95 | ||
| wet test | 80 | |||||
| Rated lightning impulse withstand voltage (peak) | 185 | |||||
| Rated short-circuit current breaking times | Times | 12 | ||||
| Mechanical life | 10000 | |||||
| Rated operational voltage and auxiliary circuits rated voltage | V | AC/DC220 | ||||
Overall and mounting dimensions(mm)
