VS1(ZN63) H.V Vacuum Circuit Breaker
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 the switch body and the operating mechanism. lt adopts the composite insulation structure, with a 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.
Specification Parameter
| 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 | 2000 | |
| Rated single capacitor bank breaking current | A | 630 | |
| Rated back-to-back capacitor bank breaking current | A | 400 | |
| Contactor torque | mm | 111 | |
| Contact stroke | mm | 30.5 | |
| Three-phase opening synchronization | ms | ≤2 | |
| Closing bounce time | ms | ≤2 | |
| Phase-to-phase distance | mm | 2101.5(2751.5) | |
| Contact pressure of closing contact | N | 3200100 | |
| 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 | |
Product Advantage
1. Strong breaking capability and excellent arc extinguishing performance due to its vacuum-based technology and magnetic field control mechanisms.
2. Compact size and light weight, facilitating easy installation and integration into various electrical systems like switchgear cabinets.
3. High suitability for frequent operations and reliable reclosing functions, supporting rapid power restoration in grid applications.
Exceptional mechanical longevity, with a lifespan of up to 30,000 operations and the ability to handle multiple short-circuit interruptions (e.g., up to 50 full-capacity breaks).
4. Minimal maintenance requirements; pole-type variants feature a solid-insulated design for near maintenance-free operation.
5. Robust reliability and adaptability to harsh environmental conditions, owing to advanced insulation and sealed construction.
6. Economical operation with low lifecycle costs, enhanced by energy efficiency and reduced servicing needs.
7. Environmentally friendly characteristics, as it operates without producing pollutants or hazardous gases.
8. Flexible installation formats, such as fixed, withdrawable, or frame-mounted configurations, for compatibility with diverse switchgear setups.
9. Compliance with international standards (e.g., GB1984, IEC60056), ensuring consistent safety and performance across applications.
Outline And Mounting Dimensions
