Jiangsu Changyun Intelligent Technology Co., Ltd
Jiangsu Changyun Intelligent Technology Co., Ltd
About Jiangsu Changyun Intelligent Technology Co., Ltd.
Leading Manufacturer of Eco-Friendly High & Low Voltage Switchgear Solutions
Jiangsu Changyun Intelligent Technology Co., Ltd., founded in 2008 and headquartered in Changzhou, Jiangsu, China, is a high-tech manufacturer specializing in the research, development, manufacturing, and global supply of high & low-voltage power distribution equipment.
With over 17 years of industry experience, we provide innovative and reliable solutions for utilities, EPC contractors, industrial facilities, renewable energy projects, commercial infrastructure, and smart power grids worldwide.
Our core product portfolio includes:
- Eco-Friendly Ring Main Units (RMUs)
- SF₆-Free Ring Main Units
- Gas-Insulated Ring Main Units (GIS RMUs)
- Solid-Insulated Ring Main Units
- Vacuum Circuit Breakers (VCBs)
- Load Break Switches (LBS)
- Vacuum Interrupters
- high & low Voltage Switchgear
- Customized Power Distribution Solutions
As a trusted Ring Main Unit manufacturer in China, we are committed to helping customers build safer, greener, and more efficient electrical distribution networks.
Driving the Future of Green Power Distribution
As global energy systems transition toward carbon neutrality, Jiangsu Changyun Intelligent Technology is committed to developing environmentally friendly high & low-voltage switchgear.
Our flagship GHXGEN Series SF₆-Free Ring Main Units utilize dry air and nitrogen insulation technology, eliminating the use of sulfur hexafluoride (SF₆), one of the world's most potent greenhouse gases. This innovative solution delivers:
- Zero SF₆ emissions
- Reduced environmental impact
- Excellent insulation performance
- Low maintenance requirements
- Enhanced operational safety
- Compliance with future environmental regulations
Our eco-friendly RMUs provide an ideal solution for smart grids, renewable energy integration, industrial power systems, and urban power distribution networks.
Advanced Manufacturing Capabilities
Our modern manufacturing facility covers more than 50,000 square meters and integrates intelligent production technologies with rigorous quality management.
The factory is equipped with:
- CNC laser cutting machines
- Precision sheet metal fabrication equipment
- Automated assembly production lines
- Intelligent manufacturing systems
- Professional electrical testing laboratories
- Complete quality inspection facilities
From engineering design and raw material inspection to final assembly and routine testing, every production stage is strictly controlled to ensure consistent product quality and long-term operational reliability.
Our flexible manufacturing system supports:
- OEM & ODM production
- Customized engineering solutions
- Fast order processing
- Small and large batch production
- Rapid project delivery
Strict Quality Assurance
Quality is at the core of everything we manufacture.
Jiangsu Changyun Intelligent Technology operates under internationally recognized management systems, including:
- ISO 9001 – Quality Management System
- ISO 14001 – Environmental Management System
- ISO 45001 – Occupational Health and Safety Management System
Every Ring Main Unit and high & low-voltage switchgear product undergoes comprehensive factory testing before shipment, including:
- Insulation Resistance Testing
- Power Frequency Withstand Voltage Testing
- Contact Resistance Measurement
- Mechanical Operation Testing
- Functional Verification
- Visual and Dimensional Inspection
These rigorous quality control procedures ensure reliable performance throughout the equipment's service life.
Trusted by Utilities and Power Distribution Projects
Our products have been successfully applied in a wide range of power distribution applications, including:
- State Grid projects
- China Southern Power Grid
- Renewable energy projects
- Industrial manufacturing plants
- Commercial buildings
- Infrastructure developments
- Urban distribution networks
- Data centers
- Transportation systems
Today, Jiangsu Changyun Intelligent Technology continues to expand its presence across Southeast Asia and international markets by delivering dependable high & low-voltage power distribution solutions tailored to local standards and project requirements.
Engineering Innovation & Customer-Centered Service
Innovation drives our continuous growth.
Supported by an experienced R&D team, independent testing laboratories, and customer-focused engineering services, we provide complete technical support throughout every stage of the project—from product selection and system design to manufacturing, testing, and after-sales service.
Our mission is to help customers improve power distribution reliability while reducing lifecycle costs through advanced technologies and customized solutions.
Why Choose Jiangsu Changyun Intelligent Technology?
Customers choose us because we combine engineering expertise with manufacturing excellence.
Our Advantages
- ✔ 17+ Years of Manufacturing Experience
- ✔ Professional RMU igh & Low Voltage Switchgear Manufacturer
- ✔ Eco-Friendly SF₆-Free Ring Main Unit Technology
- ✔ 50,000+ m² Modern Manufacturing Facility
- ✔ Advanced CNC & Intelligent Production Lines
- ✔ Independent Testing Laboratory
- ✔ ISO 9001 / ISO 14001 / ISO 45001 Certified
- ✔ IEC-Compliant Product Design & Routine Testing
- ✔ OEM & ODM Manufacturing Services
- ✔ Flexible Customization & Fast Delivery
- ✔ Professional Technical Support
- ✔ Global Export Experience
Frequently Asked Questions
Who is Jiangsu Changyun Intelligent Technology Co., Ltd.?
Jiangsu Changyun Intelligent Technology Co., Ltd. is a Chinese manufacturer specializing in eco-friendly Ring Main Units (RMUs), high & low-voltage switchgear, Vacuum Circuit Breakers, Load Break Switches, and customized power distribution solutions.
What products does Jiangsu Changyun manufacture?
We manufacture SF₆-Free Ring Main Units, gas-insulated RMUs, solid-insulated RMUs, Vacuum Circuit Breakers, Load Break Switches, Vacuum Interrupters, and other high & low-voltage power distribution equipment.
What industries do your products serve?
Our products are widely used in utility power grids, renewable energy, industrial facilities, commercial buildings, infrastructure, transportation, and smart grid projects.
Do you provide OEM and customized solutions?
Yes. We offer OEM, ODM, and fully customized solutions based on customer drawings, project specifications, and local utility standards.
At Jiangsu Changyun Intelligent Technology Co., Ltd., we are committed to providing comprehensive high & low-voltage power distribution solutions that go beyond product manufacturing. From engineering consultation and customized design to production, testing, and after-sales support, we deliver reliable services tailored to the needs of utilities, EPC contractors, panel builders, and industrial customers worldwide.
Our experienced engineering team provides professional technical support, helping customers select the most suitable Ring Main Units (RMUs), Vacuum Circuit Breakers (VCBs), Load Break Switches, and high & low-voltage switchgear solutions based on project requirements and local standards.
We offer flexible OEM and ODM services for global partners. Whether you require customized configurations, branding, enclosure designs, or electrical specifications, our manufacturing capabilities ensure products are built to meet your exact requirements.
Every project is unique. We provide tailored solutions for utility networks, renewable energy projects, industrial facilities, commercial buildings, substations, and infrastructure developments, ensuring optimal safety, reliability, and operational efficiency.
Every product undergoes comprehensive routine testing before shipment, including mechanical operation tests, insulation resistance tests, dielectric withstand tests, contact resistance measurements, and functional inspections. This guarantees reliable performance and long service life in demanding operating environments.
With extensive export experience, we ensure efficient production scheduling, secure export packaging, and timely worldwide delivery. Our team supports customers throughout the order process, from production updates to shipping documentation.
Our commitment continues after delivery. We provide installation guidance, commissioning support, technical documentation, troubleshooting assistance, and responsive after-sales service to ensure the long-term performance of our equipment.
- One-Stop high & low Voltage Power Distribution Solutions
- Professional Engineering & Technical Support
- OEM & ODM Manufacturing Services
- Eco-Friendly RMU Technology
- Strict Quality Management & IEC Compliance
- Fast Production & On-Time Delivery
- Competitive Factory-Direct Pricing
- Reliable Global Customer Support
Our core founding team began researching and developing alternative solutions for SF6-free, fully insulated medium-voltage switchgear and solid-insulated ring main units (RMUs) to replace traditional SF6 gas-insulated RMUs.
Key technical members of our founding team joined a joint development project for SF6-free medium-voltage enclosed switchgear, initiated by well-known domestic power enterprises.
We proposed three distinct structural designs for SF6-free, fully gas-insulated ring main units. We conducted comprehensive comparisons, simulations, and verification tests on eco-friendly insulating gases such as dry air, nitrogen, and carbon dioxide, ultimately confirming the optimal technical solution.
We officially released the V1.0 12kV upper and lower isolation dry air-insulated ring main unit. Meanwhile, we participated in the formulation of national standards for 12kV RMUs and achieved mass production of core modules and operating mechanisms for dry air-insulated RMUs.
We completed the prototype type test of the V1.0 dry air-insulated RMU, officially named GHXGEN-12. We collaborated with multiple industrial partners to supply integrated mechanism modules and completed the first batch of project deliveries and commercial operations.
After extensive comparative tests, we selected high-purity dry air as the exclusive insulating medium for the GHXGEN-12 series green RMUs. We launched the V2.0 GHXGEN-12 eco-friendly RMU with customized standard power distribution schemes, developed a 1250A high-current GHXGEN-12/25-25 solid-dry air insulated switchgear, and achieved batch operation of environmentally friendly RMUs in power grid projects in Chongqing and Liaoning.
We rolled out the GHXGEN series dry air-insulated RMUs featuring upper/lower isolation and normal-pressure sealing, along with upgraded V2.9 product structure and optimized operating mechanisms. Our products passed rigorous quality inspections, as well as anti-corrosion, anti-humidity, and mechanical endurance tests, and were widely deployed in batch operations in Guangdong power grid projects.
We launched the compact GHXGEN-12/630-20(25) dry air-insulated RMU to replace traditional SF6 ring main units. The company moved to a brand-new industrial park, fully upgrading production lines, product quality, and overall operational strength. Our secondary environmentally friendly gas-insulated box-type substations passed high-voltage qualification appraisals, and we completed the R&D of the GHXGEN-12/1250-25 ultra-high-current dry air-insulated RMU.
R&D & Engineering Team
At Jiangsu Changyun Intelligent Technology Co., Ltd., innovation is the driving force behind every product we manufacture. With a team of over 100 experienced professionals, including senior electrical engineers, power system designers, and dedicated R&D specialists, we continuously develop reliable medium voltage switchgear, Ring Main Units (RMUs), vacuum circuit breakers, and intelligent power distribution solutions for customers worldwide.
Our experienced engineering team is responsible for every stage of product development, including:
- Medium voltage switchgear research and development
- Customized electrical power distribution solutions
- RMU and switchgear structural design
- Insulation technology optimization
- Smart grid and distribution automation integration
- Product testing and quality verification
- On-site technical support and commissioning
With extensive experience in utility, industrial, renewable energy, and commercial power distribution projects, our engineers continuously improve product safety, reliability, and operational efficiency. We actively invest in eco-friendly gas-insulated switchgear, smart RMU technologies, and distribution automation equipment, helping customers build safer, greener, and more intelligent electrical networks.
Beyond engineering, our integrated team includes specialists in production management, quality control, international sales, logistics, and after-sales technical support. By working closely together, we provide complete OEM & ODM manufacturing services, fast project response, and one-stop power distribution solutions for global EPC contractors, utility companies, panel builders, and electrical equipment distributors.
Whether your project requires 12kV or 24kV Ring Main Units, medium voltage switchgear, vacuum circuit breakers, distribution terminal units (DTUs), or customized power distribution equipment, our engineering team is committed to delivering reliable solutions that meet international standards and project-specific requirements.
Why Our Engineering Team?
- 17+ years of manufacturing experience
- 100+ experienced engineers and technicians
- In-house R&D and product testing
- Customized OEM & ODM solutions
- Medium voltage switchgear and RMU specialists
- Smart grid and distribution automation expertise
- Global technical support for utility and industrial projects
- Strict quality control from design to delivery
