| Name | Unit | ZW32-12(G)/T400-12.5 | ZW32-12(G)/T630-16 | ZW32-12(G)/T630-20 |
| Rated voltage | kV | 12 |
| Rated current | A | 400 | 630 | 630 |
| Rated short-circuit breaking current | kA | 12.5 | 16 | 20 |
| Rated short-to-medium current (peak) | 31.5 | 40 | 50 |
| Rated peak withstand current | 31.5 | 40 | 50 |
| Rated short-time withstand current | 12.5 | 16 | 20 |
| Rated short circuit duration | S | 4 |
| Rated insulation level | Lightning impulse withstand voltage (peak) | kV | Interphase, to ground 75, fracture 85 |
| 1min power frequency withstand voltage | Interphase, to ground 42, fracture 48 |
| Rated operation sequence | | Separate -0.3s - combined -180s - combined (motorized mechanism) |
| Rated short circuit current breaking times | times | 30 |
| Mechanical life | 10000 |
| Rated operating voltage (divided coil) | v | DC220,100, AC220 |
| Dynamic static head allows wear cumulative thickness | mm | 3 |
| Overcurrent release rated current | A | 5 |
| Current transformer current ratio | | 200/5 400/5 600/5 |
| Contact opening distance | mm | 9±1 |
| Contact overtravel | 2±0.5 |
| Average opening speed | m/s | 1.2±0.3 |
| Average closing speed | 0.6±0.2 |
| Opening time | ms | 30-60 |
| Closing time | 20-40 |
| Closing bounce time | ≤20 |
| Three-phase switching | ≤2 |
| DC resistance per phase loop | μΩ | ≤80 |
| Energy storage motor | Rated voltage | V | -220 |
| rated power | W | 200 |
| Energy storage time | S | ≤8 |
| Isolation switch | Loop resistance (circuit breaker terminal to isolation switch inlet board) | μΩ | ≤120 |
| Center yaw amount when three-phase knife shutter is closed | mm | ≤2 |
| Three-phase knife gate division and closing synchronization deviation | ≤2 |
| Conductive part to ground insulation distance | ≥160 |
| Fracture opening | ≥200 |
| Weight | kg | 80 |
Complaint
