11KV Vacuum Interrupter For Fast Switch

Sunway Hanguang, established in 1968, has been deeply involved in the field of vacuum interrupters for over fifty years. This product has a rated voltage of 11kV AC, is compatible with 50/60Hz systems, and covers currents from 630A to 1250A. It is specifically designed for demanding applications such as fast switching and dynamic compensation devices. As an experienced manufacturer, the 11kV Vacuum Interrupter for Fast Switching utilizes internationally leading processes and high-quality components, strictly adhering to various international and industry standards. The product has long served well-known domestic and international customers and is exported to many parts of the world, with an average annual export growth exceeding 10% in the past decade, representing a high-quality product in the field of Chinese high-voltage electrical equipment.

Core Product Features

1. Leading Micro-Arc Interruption, Stable and Long-Lasting Operation

High-vacuum sealing technology combined with Cu-Cr contacts achieves arc-free/micro-arc interruption, reducing contact erosion by 90%. With a single-stage sealing process, the annual leakage rate is <0.5%. After 2 million mechanical life tests, the average mean time between failures (MTBF) exceeds 25 years, and the failure rate is less than 0.005%.

2. High-Speed Response, Excellent High-Frequency Performance

Opening and closing time ≤35ms, three-phase synchronicity ≤0.3ms, meeting the millisecond-level fault isolation requirements. The imported bellows have a fatigue life of over 2 million cycles, meeting the typical operating sequence tests for fast switching, and demonstrating strong adaptability to high-frequency conditions.

3. Robust Insulation Structure, Resistant to Harsh Conditions

The integrated ceramic and metal design provides excellent insulation performance and has passed numerous environmental tests. It can operate stably in temperature differences of -40℃~+85℃, high altitude, and high salt spray environments, and has electromagnetic interference resistance up to EMC Class 4.

4. Smart Expansion and Convenience, Controllable Operation and Maintenance Costs

Supports intelligent monitoring modules and multiple communication interfaces. The fully enclosed structure ensures 30 years of operation without specialized maintenance, reducing operation and maintenance costs by more than 80%. It is compatible with mainstream switch platforms, offering excellent compatibility.

5. Environmentally Compliant and Certified by Authoritative Bodies

Oil-free and SF6-free emissions, aligning with carbon neutrality goals. It has passed ISO system, RoHS, and other certifications and authoritative tests. As a reliable supplier, Sunway Hanguang guarantees product quality through comprehensive certifications.

6. Full-Chain Strength Guarantee, Global Service Coverage

Backed by a modern factory with a full range of advanced equipment, each product undergoes 15 comprehensive inspections and traceability. Annual production and sales capacity reaches 350,000 units, with 80 global technical centers providing full-cycle service and a 10-year limited warranty.

Product Parameters

Core Application Scenarios

1. Smart Power Grid Field

Suitable for 10kV ring network cabinets, smart substations, and power distribution lines, used for rapid fault isolation and power quality management. It has been widely applied in State Grid and Southern Power Grid projects.

2. Data Center Field

As a core component for UPS bypass switches and high-voltage power distribution system rapid switching, it meets the extreme demands for power supply continuity in scenarios such as Tencent data centers.

3. Rail Transit Field

Serving traction power supply systems and auxiliary switch control in projects such as the Shanghai Metro, it withstands strong vibrations, wide temperature ranges, and strong electromagnetic interference.

4. New Energy Field

The 11kV Vacuum Interrupter For Fast Switch is suitable for dynamic reactive power compensation devices and grid connection point rapid switching in wind and solar power plants, contributing to efficient grid connection of clean energy and aligning with carbon neutrality goals.

5. High-End Manufacturing Field

Providing critical load protection and precise power supply control for production lines of companies such as CATL and Siemens, it withstands high-frequency operation and complex electromagnetic environments.

6. Important Public Facilities

The 11kV Vacuum Interrupter For Fast Switch can be used in rapid switching systems for hospitals, airports, and large commercial complexes, ensuring uninterrupted power supply in critical locations.

7. Petrochemical Field

Suitable for high-corrosion environments along the coast, meeting the explosion-proof and safe operation requirements of companies such as Sinopec, and possessing strong corrosion resistance and anti-condensation properties.

8. Microgrid field

Used for fault current limiting and energy storage system switching control, facilitating the construction of highly resilient distributed power networks.