Since 1991
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 automatic reclosing ,
it can also be equipped with arrester Or disconnecting (circuit breaker and disconnecting switch combination,
hereinafter called combination intelligent circuit breakers) according to customer' s requirement.
ZW8-12/C Outdoor High Voltage Vacuum Circuit Breaker
Summary
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 automatic reclosing , it can also be equipped with arrester 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 ,interfaces of CT, PT are for remote control, can meet the requirements of remote control.
Technical Specifications
| No. | Item | Units | Parameters | ||
| 1 | Rated voltage | kV | 12 | ||
| 2 | Rated insulation level | 1min PF withstand voltage |
Dry | 42 | |
| Wet | 34 | ||||
| Lightening impulse withstand voltage（peak) | 75 | ||||
| 3 | Rated cu rrent | A | 400 630 | ||
| 4 | Rated short Circuit breaking current | kA | 20 16 12.5 | ||
| 5 | Rated operating sequence | O－0.3C0-180S-CO | |||
| 6 | Rated short Circuit breaking times | Times | 30 | ||
| 7 | Rated sho 内Circuit closing cu rrent( peak) | 50 | |||
| 8 | Rated peak withstand cu rrent | kA | 50 | ||
| 9 | Rated short time withstand current | 20,16,12.5 | |||
| 10 | Duration of rated short Circuit breaking | 4 | |||
| 11 | Opening time (shunt trip) | Max. operating voltage | ms | 15~50 | |
| 12 | Rated operating voltage | 15~50 | |||
| 13 | Min. operating voltage | 30~60 | |||
| 14 | Closing time | 25~50 | |||
| 15 | Total breaking time | ≤100 | |||
| 16 | Arc time | ≤20 | |||
| 17 | Mechanical life | Times | 10000 | ||
| 18 | Closing frequency | J | 70 | ||
| 19 | Energy storage motorra ted input power | W | ≤220 | ||
| 20 | Rated operating voltage and subsidiary loop rated voltage | V | AC/DC220 110, 24 | ||
| 21 | AC/DC220 110, 24 | ||||
| 22 | Energy storage time underrated voltage | S | <8 | ||
| 23 | Overcurrent release | Rated current | A | 5 | |
| LAccu racy of release current |
% | ±10 | |||
| 24 | Overcurrent adiust | A | 1~9 | ||
| 25 | Quick break adjust | ms | 6~20 | ||
| 26 | Delay time | 80~500 | |||
| 27 | Remote control distance | m | 30 | ||
| 28 | The number of overlap ping l(' |
Times | 1~3 | ||
Model Implication
Overall Dimensions
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