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1. Advanced Permanent Magnetic Actuator (Zero-Maintenance)
This breaker utilizes a double-coil bistable permanent magnetic actuator that reduces mechanical moving components by over 80% compared to traditional spring mechanisms. By eliminating complex latches, heavy springs, and multiple gears, it fundamentally eliminates common mechanical breakdowns. The intelligent control module enables soft and precise closing, which drastically minimizes contact bounce and switching overvoltages. Tested rigorously under IEC standards, this advanced system guarantees zero-maintenance mechanical operation for up to 100,000 cycles, making it exceptionally reliable for frequent switching applications like capacitor bank switching.
2. Solid-Sealed Pole Technology for Extreme Environments
The advanced APG (Automatic Pressure Gelation) process completely embeds the vacuum interrupter and internal conductive circuit into high-grade, flame-retardant epoxy resin. This solid-sealed construction creates a hermetically tight assembly that is immune to dust, high humidity, and condensation. With a dielectric withstand voltage exceeding 42kV/1min and consistent insulation resistance above 500MΩ, it operates flawlessly in coastal areas, desert wind farms, and highly polluted industrial environments, entirely eliminating the need for periodic insulation cleaning and reducing overall maintenance workload.
3. High-Speed Intelligent Control & Instantaneous Breaking
The built-in intelligent controller provides real-time status feedback via the intuitive front panel, which features distinct visual indicators for "Open/Close" and "Energy Storage/Condition." It offers comprehensive overcurrent, undervoltage, and short-circuit protection. During severe grid faults, the intelligent module enables ultra-fast mechanical opening and arc extinguishing within < 40 milliseconds. This swift response dramatically minimizes fault energy and prevents catastrophic damage to expensive power transformers and downstream critical equipment, ensuring power grid stability.
4. Modular Draw-Out Design & Certified Mechanical Interlocks
The breaker is constructed as a modular handcart unit, designed for seamless plug-in compatibility with standard 12kV medium-voltage switchgear panels (such as the KYN28A series). The robust zinc-plated chassis base features a reliable sliding mechanism with built-in, fail-safe mechanical interlocks. These interlocks physically prevent operators from drawing the cart in or out while the breaker is closed (ON position). This design strictly adheres to global safety regulations, ensuring absolute personnel protection and allowing for rapid, safe replacement during routine maintenance without major system shutdowns.
| NO | Item | Units | Technical parameters | ||||||||||||
| 1 | Rated voltage | kV | 12 | ||||||||||||
| 2 | Maximum working voltage | kV | 12 | ||||||||||||
| 3 | Rated current | A | 630/1250 | 630/1250 | 630/1250/1600 | ||||||||||
| 4 | Rated short-circuit breaking current | kA | 20 | 25 | 31.5 | ||||||||||
| 5 | Rated short circuit closing current | kA | 50 | 63 | 80 | ||||||||||
| 6 | Rated peak withstand current | kA | 50 | 63 | 80 | ||||||||||
| 7 | 4S rated short circuit withstand current | kA | 20 | 25 | 31.5 | ||||||||||
| 8 | Rated insulation level | Power frequency withstand voltage | kV | 42(Fracture:48) | |||||||||||
| Impact withstand voltage | 75(Fracture:84) | ||||||||||||||
| 9 | Rated operation sequence | 0-0.3s-Co-180s-Co | |||||||||||||
| 10 | Mechanical life | times | 10000 | ||||||||||||
| 11 | Rated short circuit current breaking times | times | 50 | ||||||||||||
| 12 | Operating mechanism rated closing voltage | V | AC/DC 110,220 | ||||||||||||
| 13 | Operating mechanism rated trip voltage | V | AC/DC 110,200 | ||||||||||||
| 14 | Moving contactor travel | mm | 11±1 | ||||||||||||
| 15 | Moving contactor over-travel | mm | 3.5±0.5 | ||||||||||||
| 16 | Three-phase split and close bounce time | ms | ≤2 | ||||||||||||
| 17 | Contact closing bounce time | ms | ≤2 | ||||||||||||
| 18 | Average opening speed | m/s | 1.2±0.2 | ||||||||||||
| 19 | Average closing speed | m/s | 0.6±0.2 | ||||||||||||
| 20 | Opening time | Under max operation voltage | s | ≤0.05 | |||||||||||
| Under min operation voltage | ≤0.08 | ||||||||||||||
| 21 | Closing time | S | 0.1 | ||||||||||||
| 22 | Main loop resistance of each phase | μΩ | 60 | 50 | |||||||||||
| 23 | Dynamic and static contacts allow wear cumulative thickness | mm | 3 | ||||||||||||
1. Smart Substation Power Distribution Systems
Deployed as the primary incoming and outgoing control switch in 10kV/12kV smart distribution substations, this vacuum breaker integrates seamlessly with modern DCS (Distributed Control Systems). Its built-in communication interface enables reliable remote monitoring, real-time telemetry data acquisition, and instantaneous fault alarm reporting. By directly supporting the automated dispatch centers of power grids, it helps reduce manual inspections and significantly increases the overall operational reliability of regional power distribution networks.
2. Heavy Industry & Large Manufacturing Plants
In metallurgical, petrochemical, and heavy machine manufacturing facilities, this high-voltage vacuum breaker reliably distributes power to large-scale motors, crushers, and continuous cooling systems. Its rugged permanent magnetic actuator demonstrates excellent resistance to heavy vibration and mechanical shock often found in harsh factory floors. By ensuring a continuous and stable power supply under these demanding conditions, it significantly reduces expensive, unscheduled production interruptions and protects critical industrial machinery.
3. New Energy Plants (Wind Turbines & Solar Farms)
Positioned inside the tubular towers of wind turbines or the outdoor box-type substations of utility-scale solar farms, this breaker handles the extreme demands of renewable energy. The fully sealed solid pole design effectively withstands drastic daily temperature fluctuations and high salt-fog corrosion, particularly in coastal and desert installation regions. Its exceptional sealing capability drastically reduces the frequency of remote on-site maintenance visits, effectively lowering the operational expenses of clean energy generation.
4. Power Distribution Network Automation & Rural Grids
Extensively utilized in distribution automation ring-main units and switchgear stations, this breaker is fully capable of supporting the "Three-Remote" (Remote Measuring, Remote Signaling, Remote Control) functionalities mandated by modern smart grids. It possesses the ability to rapidly locate, isolate, and clear faults during severe weather events. This significantly improves the power supply reliability and restoration speed for both densely populated urban networks and remote rural transmission lines.
5. High-Rise Commercial Buildings & Data Center Incoming Bays
Installed in the main incoming electrical cabinets of high-rise commercial skyscrapers and enterprise-grade data centers, this breaker's smooth, bounce-free closing characteristic effectively eliminates harmful switching transient overvoltages. Such overvoltages often damage precision IT servers, switches, and sensitive cooling infrastructure. Its low-noise, low-maintenance operation ensures stable, clean, and continuous critical power supply to facilities that cannot tolerate even millisecond-level power disturbances.
Q：Are you a trading company or factory?
A：We are a manufacturer boasting 15 years of industry experience and holding proprietary import-export rights.
Q：What certifications do you have?
A：Yes, we hold ISO, CE, and IEC certificates. In addition, we possess a number of design patents and a Special Equipment Manufacturing License.
Q：How long is your delivery time?
A：For normal products in 7-10 days; For bulk order, in 15-25 days. It depends.
Q：What is the warranty time?
A：3 years warranty for all of our stainless steel products. Gaskets or the easy broken parts are not included due to the different application for customers.
