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Help Center12kv ZW8-12/C Series Intelligent Outdoor High Voltage Vacuum Circuit Breaker
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SPECIFICATION
ZW8-12/C intelligent outdoor high-voltage vacuum circuit breaker(hereinafter called intelligent breaker) is applied for breaking, on or off of load current in AC three-phase power system of rated 10-12KV with 50/60Hz, it owns functions of overload and short protection, fast breaking protection, time lapse delay and auto matic reclosing, it can also be equipped with arrestor or disconnecting ( circuit breaker and disconnecting switch combination, hereinafter called combination intelligent circuit breakers) according to customer's requirement. This intelligent breaker owns power supply itself, available for remote control, interfacs of CT,PT are for remote control, can meet the requirements of remote control.
AMBIENT CONDITION
1.Altitude temperature: -30℃~+40℃
2.Height: 2000m below
3.The biggest difference in temperature: no more than 25℃;
4.The wind pressure: no more than 700pa (wquivalent to 34m/s wind speed);
5.Pollution level: three level;
6.The seismic intensity is not more than 8 degrees
MODEL IMPLICATION
TECHNICAL SPECIFICATION
| Item | Units | Parameters | ||
| Rated voltage | KV | 12 | ||
| Rated insulation level |
1 min PF withstand voltage | Dry | 42 | |
| Wet | 34 | |||
| Lightening impulse withstand voltage(peak) | 75 | |||
| Rated current | A | 400.630 | ||
| Rated short circuit making current | KA | 20.16.12.5 | ||
| Rated operating sequence | 0-0.3s-co-180s-CO | |||
| Breaking t short circuit breaking times | times | 30 | ||
| Rated short circuit closing current(peak) | 50 | |||
| Rated peak withstand current | KA | 50 | ||
| Rated short time withstand current | 20.16.12.5 | |||
| Duration of rated short circuit breaking | s | 4 | ||
| Opening time (shunt trip) | Max. operating voltage | ms | 15~50 | |
| Rated operating voltage | 15~50 | |||
| Min. operating voltage | 30~60 | |||
| Closing time | 25~50 | |||
| Total breaking time | ≤100 | |||
| Arc time | ≤20 | |||
| Mechanical life | Times | 10000 | ||
| Closing frequency | J | 70 | ||
| Energy storage motor rated input power | W | ≤220 | ||
| Rated operating voltage and subsidiary loop rated voltage | V | AC/DC220 110,24 | ||
| AC/DC220 110,24 | ||||
| Energy storage time under rated voltage | S | <8 | ||
| Over current release | Rated current | A | 5 | |
| Accuracy of release current | % | ±10 | ||
| Over current adjust | A | 1~9 | ||
| Quick break adjust | ms | 6~20 | ||
| 80~500 | ||||
| Remote control distance | m | 30 | ||
| The number of overlapping | Times | 1~3 | ||
OVERALL DIMENSION
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