YIFA indoor solid-sealed high voltage vacuum circuit breaker VCB VS1-12 series
Inquire NowDescription
The YIFA Indoor Solid-Sealed High Voltage Vacuum Circuit Breaker (VCB) VS1-12 series is a state-of-the-art indoor high-voltage switchgear designed for three-phase AC systems operating at 50 Hz and rated voltages of 7.2-12 kV. This circuit breaker stands out due to its advanced interlocking function, ensuring reliable performance and safety. Its design adheres to national standards including GB/T1984 and IEC regulations, making it a trustworthy choice for high voltage applications.
Constructed using the mature APG technique and advanced epoxy-resin solid encapsulation technology, the VS1-12 integrates components such as the vacuum arc-extinguishing chamber and main conductive circuit into a single solid-encapsulated pole. This innovative design not only prevents environmental impact on the vacuum chamber’s surface but also guarantees maintenance-free operation. The circuit breaker is available for fixed installation or can be customized with a chassis as a portable handcart.
Specifications
| Item | Unit | Parameter |
|---|---|---|
| Rated Voltage | kV | 12 |
| Rated Frequency | Hz | 50 |
| Rated Lighting Impulse Withstand Voltage (Peak) | kV | 75 |
| Rated (1 min) Line Frequency Withstand Voltage (Effective Value) | kV | 42 |
| Rated Operating Sequence | A | O-0.3s- CO-180s-CO |
| Rated Current | kA | 630, 1250 |
| Rated Short Circuit Dropout Current | kA | 20, 25, 25, 31.5 |
| Rated Short Circuit Close Current (Peak) | s | 50, 63, 63, 80 |
| Rated Short Circuit Duration | 4 | |
| Open Circuit Times of Rated Short Circuit Dropout Current | times | 30 |
| Mechanical Life | times | 10000 |
Additional Information
- Employs ultra-low-resistance vacuum interruption to minimize energy loss.
- Features a modular spring operating mechanism for simple structure and stable performance.
- Compact design reduces phase-to-phase distance by 30-60mm.
