Pomanique Electric Co., Ltd. 
Specifications
VS1(ZN63 ) series vacuum circuit breaker is an indoor three-phase AC high-voltage switchgear of 50 Hz and rated voltage 12KV, made by introducing the technology of Swiss ABB Company and according to domestic industrial development and production capacity. The entire structure of this product presents the integrated installation of switch body and operating mechanism. It adopts the composite insulation structure, with high insulation level, no pollution or explosion danger. Its operating mechanism is of spring energy-storage type, which be operated with alternating current or by manual.
Technical Data
| Item | unit | parameter | |
|---|---|---|---|
| Rated voltage | kV | 12 | |
| Rated insulation level | 1 min line frequency withstand voltage | kV | 42 |
| rated thunder impulse withstand voltage | kV | 75 | |
| Rated current | A | 630,1250,1600,2000 | |
| Rated short circuit breaking current | kA | 20,25,31.5,40 | |
| Rated short circuit closing current | kA | 50,63,80,100 | |
| Rated peak withstand current | kA | 50,63,80,100 | |
| Rated short circuit withstand current(effective value) | kA | 20,25,31.5,40 | |
| Rated current breaking times | times | 50 | |
| Rated short-circuit duration | S | 4 | |
| Rated operating sequence | times | O-0.3s-CO-180s-CO | |
| Mechanical life | times | 20000 | |
| Rated single capacitor bank breaking current | A | 630 | |
| Rated back-to-back capacitor bank breaking current | A | 400 | |
| Contactor torque | mm | 11 1 | |
| Contact stroke | mm | 3 0.5 | |
| Three-phase opening synchronization | ms | ≤2 | |
| Closing bounce time | ms | ≤2 | |
| Phase-to-phase distance | mm | 210 1.5(275 1.5) | |
| Contact pressure of closing contact | N | 3200 100 | |
| Average break brake speed | m/s | 0.9~1.2 | |
| Average close brake speed | m/s | 0.55~0.8 | |
| Breaking time | ms | 20~50 | |
| Closing time | ms | 35~70 | |
| Accumulative Allowable Wear Thickness of Dynamic and Static Contacts | mm | 3 | |
