What are the details of Richge Technology's High-Voltage Disconnector Series?

What are the details of Richge Technology's High-Voltage Disconnector Series?

    --Eco-friendly & Intelligent Dual Drive, Full Product Range Compliant with New National Standards, Empowering the Construction of New Power Systems

    As a national high-tech enterprise with 40 years of expertise in the high-voltage electrical equipment sector, Richge Technology leverages its strengths in independent R&D and full industrial chain control to launch a comprehensive range of high-voltage disconnector products covering the full voltage spectrum from 12kV to 252kV. With 78 national patents (including 12 invention patents dedicated to high-voltage technologies) as its technological core, this product series strictly complies with the requirements of the new national standard GB/T 1985-2023 (equivalent to IEC 62271-102:2022). It innovatively adopts core technologies such as environmentally friendly gas insulation and digital twin monitoring, and has obtained triple certifications of CCC, CE and ATEX as well as the GB 3836.1 explosion-proof certification. Widely applicable to high-voltage scenarios including substations, new energy booster stations, high-speed railway traction substations and chemical industry parks, Richge Technology is leading the upgrading wave of high-voltage isolation equipment with the solid strength of Made in China.

Core Advantages: Richge's Four Core Capabilities

    Building on 40 years of R&D and manufacturing experience in high-voltage electrical equipment, Richge deeply integrates its full industrial chain expertise with high-voltage isolation technologies. It has achieved breakthroughs across all dimensions—from environmental compliance and intelligent upgrading to quality durability and global services—forging differentiated core competitiveness:

• R&D Leadership & Priority to Environmental Compliance: Richge has established a dedicated R&D team of over 50 professionals specializing in high-voltage electrical technologies, 80% of whom boast more than 10 years of experience in high-voltage disconnector R&D. The company allocates 8% of its annual revenue to technology iteration and participates extensively in the discussion of industry standards for high-voltage switches. In response to the global trend of environmental policies, Richge has independently developed environmentally friendly gas-insulated three-position disconnectors:  

  (Patent No.: ZL202322848267.3). These products use dry air instead of traditional SF₆ gas and are equipped with carbon fiber-reinforced insulators (reducing weight by 30%). They not only eliminate the greenhouse effect risk posed by SF₆ but also deliver outstanding performance: a maximum lightning impulse withstand voltage of 1050kV and a creepage distance ratio of ≥31mm/kV (for Pollution Class III areas), far exceeding the thresholds set by the new national standards. The products fully comply with the EU F-gas Regulation and the requirements of China’s low-carbon power grids.

• Full-chain Controllability & Precise Capacity Support: Richge’s intelligent manufacturing base houses dedicated production lines for high-voltage disconnectors, covering an area of over 100,000 square meters with an automation rate of 75%. Equipped with the independently developed DELMIAWORKS digital system, the base enables end-to-end collaborative management and control—from 3D design, robotic welding and laser cutting to finished product inspection. With an annual production capacity of 300,000 units, the lines cover the full product range including outdoor, indoor and intelligent three-position disconnectors. Capacity allocation is precisely tailored to different voltage classes, supporting global off-the-shelf delivery within 7 days. This efficiently meets the urgent needs of projects such as substation renovation and expansion, as well as new energy power station grid connection.
• Ultimate Quality & Validation in Harsh Scenarios: Richge is equipped with a leading CNAS-accredited laboratory in China’s high-voltage electrical sector. In accordance with the new national standards and GB/T 13540 seismic standards, the laboratory conducts comprehensive performance tests on all products, including: extreme environment tests from -40℃ to 85℃, short-time withstand current tests of 31.5–50kA for 3 seconds, IP54+ protection tests, 5,000 mechanical life cycle tests and artificial pollution tests. All products maintain contact resistance stably below 30μΩ and temperature rise ≤65K, which are far superior to the limits specified in national standards. The core contacts are made of copper-silver plated alloy and treated with a patented double anti-corrosion process of hot-dip galvanizing and passivation. They can pass the 500-hour salt spray test without rusting, with an ice-breaking force of ≥300N and a fault repair rate below 0.1%. These products are well-suited for complex scenarios such as high-altitude regions, coastal salt spray areas and frigid icing environments.
• Intelligent Upgrading & Global Service Guarantee： Richge has established 5 global service centers and 20 domestic offices, with a dedicated service team for high-voltage equipment whose engineers are all certified to new national standards and IEC standards. The products integrate intelligent monitoring modules and digital twin diagnostic systems, which can collect real-time data on contact temperature, mechanical vibration and gas pressure and upload it to the SCADA system. Through finite element simulation, the systems realize virtual mapping of equipment status, achieving a fault identification rate of over 93% and supporting remote control and predictive maintenance. A green channel is specially opened for high-voltage projects, providing 48-hour on-site installation, commissioning and mechanical interlock verification services. Richge’s customer satisfaction rate has remained above 98% for 8 consecutive years.

Full-Range Product Matrix: Accurately Covering All Scenarios of High-Voltage Power Distribution

     Guided by the R&D philosophy of "Safety & Reliability, Low-Carbon & Intelligence, Flexibility & Adaptability", Richge’s high-voltage disconnector series is categorized into three major product lines. Each product incorporates the company’s patented technologies and manufacturing strengths, addressing the pain points of different scenarios with targeted solutions:

• Outdoor High Voltage Disconnect Switch (12kV–252kV)：As the core product line of Richge’s high-voltage portfolio, this series is specially designed for open-air substations and wind power collection lines, with its core structure holding exclusive patents for outdoor applications (Patent No.: ZL202420156789.1). Adopting a vertical break structure and Richge-customized composite silicone rubber insulators, the product achieves a rated continuous current of up to 6300A, a short-time withstand current of 150kA, and a maximum creepage distance ratio of 54mm/kV, enabling it to withstand harsh environments such as sandstorms and coastal salt spray. Supporting multiple installation modes including vertical and horizontal mounting, and equipped with Richge’s self-developed anti-icing mechanism, it is suitable for frigid regions with temperatures as low as -40℃. Mass-produced on dedicated production lines at Richge’s Wuxi intelligent manufacturing base, it has become the designated supporting product for Qinghai high-altitude wind power projects and coastal photovoltaic booster stations.

• Indoor High Voltage Isolation Switch (12kV–40.5kV)：Built on Richge’s 40 years of R&D experience in indoor electrical equipment, this series is tailored to meet the compact layout requirements of power distribution rooms and ring main units, with a volume 20% smaller than traditional products. It adopts Richge’s independently optimized spring operating mechanism, boasting an opening and closing response time of less than 50ms. The phase-to-phase safety distance strictly complies with the GB 3906 standard (≥125mm for 12kV, ≥300mm for 40.5kV), and mechanical interlock with circuit breakers is realized to eliminate the risk of on-load operation. Key components are made of flame-retardant V0-grade DMC material and have passed comprehensive anti-aging tests in Richge’s CNAS-accredited laboratory. Featuring a maintenance-free design, it is ideal for enclosed scenarios such as industrial plants and high-speed railway traction substations, with an annual shipment volume exceeding 80,000 units.
• Three-Position Intelligent Disconnector (12kV–126kV)：Integrating three core functions—isolation, conduction and grounding—this series is equipped with an environmentally friendly gas insulation module and a digital twin unit. It supports the IEC 61850 communication interface, enabling seamless data integration into smart grid platforms. Leveraging digital twin technology to predict contact wear rates, it achieves a mechanical service life of over 10,000 operations, significantly reducing operation and maintenance costs. Suitable for high-voltage power distribution in smart substations, energy storage stations and chemical explosion-proof areas, it achieved a year-on-year shipment growth of 37% in 2025, leading the trend of green and intelligent transformation.

Benchmark Project Implementation: Empowering the Global Upgrade of High-Voltage Power Distribution Safety

     With compliant quality, intelligent adaptability and stable performance, Richge’s high-voltage disconnector series has successfully served over 5,000 key high-voltage projects worldwide, becoming a trusted choice across various industries:

• Power SectorA 110kV smart substation adopted Richge’s three-position intelligent disconnectors integrated with digital twin monitoring systems, achieving zero-fault operation for 2 consecutive years and improving operation and maintenance efficiency by 40%. This fully meets the automation upgrade needs of smart power grids.
• New Energy ScenarioA wind farm exclusively deployed Richge’s Outdoor High Voltage Disconnect Switch. Boasting a high creepage distance ratio and patented dual anti-corrosion technology, the product operates stably under extreme conditions such as sandstorms and salt spray, ensuring the reliable grid connection of booster stations. Richge was awarded the Annual High-Quality Supplier Certification by the project owner.
• Rail Transit SectorA traction substation of the Beijing-Hong Kong High-Speed Railway adopted Richge’s Indoor Isolation Switch. Optimized specifically for traction power supply scenarios, this product meets the requirements for high mechanical strength and frequent operations, withstanding over 1,000 opening and closing cycles without faults. It complies with the TB/T 3324-2023 standard and Richge’s special quality assurance requirements for rail transit applications.
• Chemical Industry SectorA large-scale refinery and chemical plant selected Richge’s explosion-proof high-voltage disconnectors. Featuring a stainless steel casing and creepage extension shed design, the product has obtained the GB 3836.1 explosion-proof certification. Ideal for corrosive gas environments, it has maintained a record of zero safety incidents during operation.

Technical Compliance & Quality Commitment: Richge’s Full-Process Protection for High-Voltage Safety

     Richge’s full range of high-voltage disconnectors fully complies with domestic and international standards including GB/T 1985-2023, IEC 62271-102:2022 and NB/T 31045-2021, and has obtained CCC, CE, ATEX and explosion-proof certifications. The enterprise standard (Q/RICHGE 003-2024) is stricter than national standards. Nameplates clearly indicate rated parameters, manufacturer information and the "isolation" function symbol, fully meeting the compliance requirements for power grid bidding.

     The products come with a 2-year joint warranty (vs. the industry average of 1 year), including free replacement of faulty parts within 48 hours. Combined with lifetime technical support and original spare parts directly supplied by Richge, we provide full-cycle protection for the safe and stable operation of high-voltage power distribution systems.

Get Customized High-Voltage Disconnector Solutions Now

     If you need Richge’s high-voltage disconnector product brochures, model matching charts, certification documents or customized adaptation solutions, please contact us via the following methods:

1. Visit Richge’s official website (www.richgeswitchgear.com) and download 3D models as well as certification certificates in the "High-Voltage Electrical Equipment – High-Voltage Disconnector Series" section;
2.  Contact Richge’s sales team (WhatsApp: +86 189 5893 8078) to get free one-on-one product selection consultation and scenario adaptation solutions;
3.  Send an email to sales@switchgearcn.net to apply for the "Richge Customized Technical Solution for High-Voltage Disconnectors".

     Richge Technology — With 40 years of professional expertise, full industrial chain capabilities and globalized services, we provide green, intelligent and reliable high-voltage disconnector solutions for customers worldwide, supporting the high-quality development of new power systems!