36KV Vacuum Interrupter For Fast Switch

As a professional manufacturer with over fifty years of experience in the industry, Sunway Hanguang was founded in 1968 in Xiaogan High-tech Zone, Hubei Province, focusing on the research and production of vacuum electrical equipment. This 36kV Vacuum Interrupter for Fast Switching has a rated voltage of 36kV AC, a maximum operating voltage of 40.5kV AC, is compatible with 50/60Hz systems, and has a rated current of 2500A, focusing on the efficient and stable operation needs of 35kV equipment.

The 36kV Vacuum Interrupter for Fast Switching adopts core processes such as single-stage sealing, combined with high-purity Cu-Cr contacts and 316L bellows, complying with multiple international and industry standards. With an annual production and sales volume of 350,000 units, it has long been a supplier to well-known domestic and international companies, exporting to many parts of the world, with an average annual export growth exceeding 10% in the past decade, making it a trusted core component supplier in the global high-voltage power distribution field.

Core Product Features

1. Excellent Micro-arc Interruption, Stable and Long-lasting Operation

The 36kV Vacuum Interrupter for Fast Switching adopts high-vacuum sealing technology (factory vacuum degree better than 1.33×10⁻³Pa), combined with Cu-Cr longitudinal magnetic field contacts, with a current interruption value of <3A, achieving arc-free/micro-arc interruption, reducing contact erosion by 90%. The single-stage sealing process, combined with double leak detection, results in an annual leakage rate of <0.5%, a mechanical life of 30,000 cycles, an electrical life of 20,000 cycles, a 20-year warranty, and a failure rate of less than 0.006%, demonstrating outstanding stability.

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

Optimized mechanical structure adapted to high-frequency operating conditions, with an average opening speed of 1.5±0.3 m/s and closing speed of 1.1±0.2 m/s. Contact bounce and three-phase synchronicity are both ≤2ms, suitable for O-0.3(0.5)s-CO-180s-CO operating sequences. Imported 316L bellows combined with precise contact pressure design ensure accurate and controllable opening and closing actions, meeting the core requirements of fast switching.

3. Robust Insulation Structure, Resistant to Harsh Conditions

The integrated design of the ceramic shell and metal flange provides power frequency withstand voltage of 70/95kV (1 min) and lightning impulse withstand voltage of 170/185kV (peak value). It has passed multiple environmental tests and is suitable for pollution level IV. It can operate stably in harsh environments such as -45℃~+85℃, high humidity, and high altitude, with EMC Class 4 electromagnetic interference resistance and excellent corrosion and impact resistance.

4. Convenient and Controllable Operation and Maintenance, Strong Intelligent Expandability

Optional intelligent monitoring module is available, compatible with multiple communication interfaces, and seamlessly integrated into intelligent operation and maintenance platforms. The fully enclosed structure requires no frequent maintenance, reducing maintenance costs by more than 80%. It supports quick replacement and tool-free maintenance, perfectly compatible with mainstream 36kV fast switching platforms such as ABB and Siemens, offering strong compatibility.

5. Environmentally Compliant and Certified by Authoritative Bodies

Oil-free and SF6-free emissions meet environmental requirements. It is certified by ISO 9001:2008 and multiple international industry standards, and has been tested by authoritative institutions such as KEMA and the China Electric Power Research Institute. Optional CE and UL international certifications are available, providing reliable quality assurance.

6. Backed by Company Strength, Comprehensive Service Guarantee

Supported by a full set of advanced production and testing equipment, a complete quality control process is established. Each 36kV Vacuum Interrupter For Fast Switch undergoes 15 factory inspections and generates traceable archives. With 80 technical support centers worldwide, we provide pre-sales customization, in-process factory inspection, and 7×24-hour after-sales service. Rapid on-site service is available in core areas, and a 10-year limited warranty is provided.

Product Parameters

Core Application Scenarios

1. 35kV Smart Distribution Network: Adapted for fault isolation and power quality management in smart substations, already implemented in State Grid and Southern Power Grid projects.

2. New Energy Power Plants: Used in wind power and photovoltaic SVG devices and grid connection switching, adapted to extreme outdoor environments, facilitating the integration of clean energy into the grid.

3. Rail Transit Sector: Resistant to strong vibrations and electromagnetic interference, serving 35kV traction power supply systems in Shanghai and Beijing subways, among others.

4. Petrochemical Industry: Corrosion-resistant and condensation-proof, meeting explosion-proof requirements, and has been a long-term supplier to companies such as PetroChina and Sinopec.

5. Large Industrial Plants: Ensuring power supply for critical loads in industries such as steel and building materials, adapted to high-frequency operation and complex electromagnetic environments.

6. Important Public Facilities: Providing rapid switching protection for airports, data centers, etc., avoiding power outage losses.

7. Offshore Platforms and Vessels: Adapted to high salt spray and high humidity environments, complying with shipbuilding industry standards, ensuring stable power supply for offshore operations.

8. Key Overseas Projects: Adapted to power grid standards in multiple regions worldwide, mass-produced and applied in projects in Southeast Asia and the Middle East, demonstrating the competitiveness of "Made in China" products.