
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:
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:
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:
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:
Strict Quality Assurance
Quality is at the core of everything we manufacture.
Jiangsu Changyun Intelligent Technology operates under internationally recognized management systems, including:
Every Ring Main Unit and high & low-voltage switchgear product undergoes comprehensive factory testing before shipment, including:
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:
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
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.

| Company Name: | Jiangsu Changyun Intelligent Technology Co., Ltd |
|---|---|
| Business Type: | Manufacturer,Exporter,Seller |
| Brands: | ChangYun |
| Employee Number: | 120~130 |
| Year Established: | 2008 |
| Total Sales Annual: | 29460000-44190000 |
| Company Location: | No.18 Mingyang Road,Menghe Town,Changzhou City,Jiangsu Province,China |
| Factory Location: | No.18 Mingyang Road,Menghe Town,Changzhou City,Jiangsu Province,China |
Jiangsu Changyun Intelligent Technology Co., Ltd
Jiangsu Changyun Intelligent Technology Co., Ltd. is a professional manufacturer specializing in medium- and low-voltage power distribution equipment. With more than 17 years of manufacturing experience, we provide comprehensive OEM and ODM services for global electrical equipment brands, panel builders, EPC contractors, utilities, and distributors.
Our integrated manufacturing facility covers the complete production process, from sheet metal fabrication, CNC machining, welding, powder coating, busbar processing, electrical assembly, routine testing, to final packaging. Every production stage is carried out under a strict quality management system to ensure consistent product quality, reliable performance, and on-time delivery.
Whether you require complete switchgear systems, customized electrical panels, semi-knocked-down (SKD) products, or individual components, our engineering team provides flexible manufacturing solutions tailored to your project requirements.
We support customization based on drawings, technical specifications, or OEM branding requirements while ensuring compliance with international standards and the technical requirements of Indonesia PLN.
We provide OEM and ODM manufacturing services for a wide range of power distribution equipment, including:
Our experienced engineering and production teams ensure every project is completed efficiently and accurately.
Step 1 – Project Consultation
Discuss technical requirements, drawings, specifications, and application scenarios.
Step 2 – Engineering Evaluation
Review technical feasibility and provide optimized solutions.
Step 3 – Design Confirmation
Confirm drawings, branding requirements, dimensions, and electrical configurations.
Step 4 – Manufacturing
Complete sheet metal fabrication, welding, surface treatment, electrical assembly, and wiring.
Step 5 – Testing & Inspection
Routine tests, electrical performance tests, mechanical operation tests, and quality inspection.
Step 6 – Packaging & Delivery
Professional export packaging and worldwide shipment.
Our factory is equipped with advanced manufacturing equipment and standardized production lines, allowing us to provide stable quality and flexible production capacity.
Our production capabilities include:
Every production process is completed in-house to ensure quality consistency and production efficiency.
We provide flexible customization services according to customer requirements.
Quality is integrated into every production stage.
Our inspection procedures include:
Each product is inspected before shipment to ensure stable operation and long service life.
Jiangsu Changyun Intelligent Technology operates a modern manufacturing facility equipped with advanced CNC processing, precision sheet metal fabrication, automatic welding, powder coating, electrical assembly, and comprehensive testing equipment. Our integrated production line enables complete manufacturing from raw materials to finished switchgear, ensuring consistent quality, high production efficiency, and fast delivery.
Every production stage follows strict quality management procedures to guarantee reliable performance, safety, and long service life for every product delivered to customers worldwide.
Our production process covers every key manufacturing stage:
✔ Complete in-house manufacturing
✔ Advanced CNC production equipment
✔ Strict quality control at every stage
✔ Experienced engineering and production team
✔ Flexible OEM & ODM manufacturing
✔ Stable production capacity for bulk orders
✔ Fast delivery and global export experience
Every product undergoes multiple inspections before shipment, including:
This strict quality control system ensures every product meets international quality requirements and customer specifications.
Whether you need Ring Main Units (RMUs), Medium Voltage Switchgear, Low Voltage Power Cabinets, or customized OEM solutions, Changyun Intelligent is ready to support your project with reliable manufacturing, strict quality control, and fast delivery.
At Jiangsu Changyun Intelligent Technology, research and development are the foundation of product innovation and continuous improvement. Our experienced engineering team focuses on the design, optimization, and testing of medium- and low-voltage power distribution equipment to provide safer, more reliable, and more efficient electrical solutions.
From concept design to mass production, every product undergoes rigorous engineering analysis, prototype validation, and performance testing to ensure stable operation under demanding applications.
By continuously investing in technology, manufacturing processes, and product upgrades, we help customers achieve higher reliability, longer service life, and lower maintenance costs.
We analyze customer requirements, project specifications, and market trends to develop practical and competitive solutions.
Electrical engineers design the cabinet structure, busbar layout, insulation system, and operating mechanism using advanced engineering software.
Mechanical strength, thermal performance, insulation coordination, and electric field distribution are optimized before prototype production.
Prototype products are manufactured using our in-house production facilities for functional verification.
Products undergo mechanical, electrical, insulation, and operational testing to verify performance and reliability.
Only validated designs enter standardized production to ensure consistent quality.
Our engineering team continuously develops and improves products including:
During product development, we focus on:
Each design is continuously optimized based on customer feedback and field operating conditions.
Before entering mass production, products undergo comprehensive testing, including:
These tests ensure every product delivers reliable performance in real-world applications.
We continuously improve our products by combining customer feedback, engineering experience, and manufacturing innovation.
Our development focuses on:
This continuous innovation enables us to provide efficient and future-ready power distribution solutions.
Our R&D achievements support projects in:
Yes. Our engineering team supports customized development according to customer drawings and technical specifications.
Yes. We provide complete OEM and ODM engineering services.
Yes. We can improve structure, performance, dimensions, or electrical configurations based on your requirements.
Yes. We provide technical consultation throughout the design, manufacturing, and project implementation process.
Yes. Selected products are designed to comply with the technical requirements of Indonesia PLN.
Every product undergoes design verification, prototype validation, comprehensive testing, and strict quality control before mass production.
Our engineering team is ready to support your project with customized product design, OEM/ODM manufacturing, and professional technical assistance.
Contact us today to discuss your requirements and receive a customized solution.

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:
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.

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.
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.
| Market name: | Worldwide |
|---|---|
| Contact Person: | Zhang |