VS1-6.6 Vacuum Circuit Breaker

1. Insulation upgrade, adapted to special voltage requirements:

Based on the 6KV model, the insulation structure of the arc extinguishing chamber has been optimized. The insulation cylinder cast with epoxy resin APG technology has excellent anti creepage performance, higher rated insulation level, and can stably adapt to 6.6KV rated voltage scenarios, eliminating insulation breakdown hazards. At the same time, the insulation recovery speed after arc is fast, adapted to the voltage stability requirements of special industry distribution networks, and can maintain high resistance in humid, hot and severely polluted environments, making operation more reliable.

2. Strong adaptability to working conditions and outstanding reliability:

Made of high quality materials that are resistant to temperature and corrosion, the mechanical structure has been strengthened and designed to adapt to harsh working conditions (such as high humidity, dust, slight corrosion, vibration) in mines, chemicals, ships, shore power, etc. The mechanical life can reach 30000 times, the number of full capacity short circuit current interruptions can reach 50 times, and the operation reliability is high. It is not prone to mechanical stagnation and electrical failures. It can operate stably for a long time, reduce the downtime of failures, and ensure the production continuity needs of special industries.

3. Accurate protection, supporting customized needs:

Built in high-precision protection unit, can customize overload, short circuit, undervoltage, zero sequence protection and other functions according to the needs of different scenarios such as foreign-related enterprises, mines, nuclear power auxiliary, etc. The fault response speed is fast, the opening time is controlled within 20-50ms, and the fault current can be quickly cut off to avoid fault expansion. At the same time, it supports reclosing operation and adapts to the protection needs of special industry distribution networks. It can ideally meet the requirements of resistive, inductive and capacitive loads, and adapt to complex load conditions.

4. Compatible with international standards and suitable for foreign-related projects:

The product manufacturing strictly follows international standards such as IEC60056, IEC62271-1, and IEC62271-106, and also complies with domestic GB1984 and DL/T403 standards. It has passed KEMA type test A-level certification and can directly adapt to the network requirements of foreign-related industrial enterprises and export projects. The electrical parameters and installation dimensions are compatible with similar international products, with strong interchangeability and convenient supply of accessories in the later stage, suitable for the standardization needs of foreign-related projects.

5. Convenient operation and maintenance, high safety factor:

adopting modular design, electrical components are easy to disassemble and replace. Ordinary daily maintenance only requires intermittent cleaning or lubrication of the operating mechanism, and the fixed pole type achieves maintenance free operation and maintenance with minimal workload; Equipped with comprehensive anti misoperation interlocking functions (closing interlock, opening interlock, handcart interlock, etc.), it eliminates the hidden danger of misoperation. At the same time, the vacuum arc extinguishing design has no fire or explosion hazards, adapts to the safety management requirements of special industries, and ensures the safety of personnel and equipment.

The rated current of this product covers 1250A~3150A, the rated short-circuit breaking current can reach 25~40kA, the rated short-time power frequency withstand voltage (1min) can reach 45kV (relative to ground, phase to phase), 50kV (fracture), the rated lightning impulse withstand voltage (peak) can reach 80kV (relative to ground, phase to phase), 90kV (fracture), the rated short-circuit duration is 4s, the closing time is 35~70ms, the opening time is 20~50ms, the closing bounce time is ≤ 2ms, and the opening and closing asynchrony is ≤ 2ms, meeting the complex load requirements of special industries.

The suitable environmental conditions are: the daily average relative humidity does not exceed 95%, the monthly average does not exceed 90%, the daily average water vapor pressure does not exceed 2.2kPa, the monthly average does not exceed 1.8kPa, and there is no severe vibration, strong chemical corrosion, or explosion hazard in the place. According to special working conditions such as mining dust, chemical corrosion, and high humidity of ships, customized dust prevention, anti-corrosion, moisture-proof, and anti vibration upgrade plans can be customized.

The product supports intelligent control upgrade and can be equipped with intelligent monitoring units to achieve remote operation, fault self diagnosis, real-time monitoring of operating status, and remote fault location functions, adapting to the intelligent operation and maintenance needs of special industries; Each product undergoes strict type testing and factory inspection, accompanied by complete international and domestic testing reports, certificates of conformity, and certification documents, ensuring reliable and guaranteed quality.

At the same time, it supports customized products with different operating methods, installation forms, and protection functions, adapting to personalized needs of various special scenarios. It can be used with supporting products such as fuse handcarts, isolation handcarts, and voltage transformer handcarts, with strong universality.