Company Profile

Jiangsu Changyun Intelligent Technology Co., Ltd. is a high-tech manufacturer specializing in the R&D, manufacturing, and global supply of medium- and
Our Services

Changyun provides complete engineering and manufacturing services for medium-voltage power distribution systems. Our services include: Ring Main Unit (RMU) Manufacturing Medium Voltage Switchgear Manufacturing OEM & ODM Production Custom RMU Design Factory Acceptance Testing (FAT) Technical Support Global Export & After-sales Service Our products are widely used in utility, renewable energy and industrial power distribution projects.
Company History

Since launching our eco-friendly RMU development program, Changyun Intelligent has continuously advanced its technology through extensive R&D, product testing, and field applications. Our eco-friendly RMU series has achieved stable performance, compact design, and reliable operation, meeting international standards and supporting modern medium-voltage distribution projects with sustainable, low-maintenance solutions.
Our Team

Our engineering team specializes in medium-voltage power distribution and provides support from product selection and custom design to manufacturing, testing and commissioning. We work with utilities, EPC contractors and industrial customers to deliver reliable OEM Ring Main Units, Medium Voltage Switchgear and customized power distribution solutions

Year Established

Employees

Annual Sales (USD)

Customers Served

MV Ring Main Unit（RMU) & Distribution Automation Equipment Manufacturer

MV Ring Main Unit（RMU)

Distribution Automation Equipment

HV&LV Switchgear

Switches，Switching Mechanisms & Accessories

24kV SF₆ Gas Insulated Compact Ring Main Unit (RMU)

The XGN18-24 24kV SF₆ Gas Insulated Ring Main Unit (RMU) is a compact medium-voltage switchgear designed for reliable power distribution. Featuring a sealed IP67 gas tank, modular configuration, low maintenance, and IEC-compliant design, it is ideal for substations, utilities

Video

GHXGEN Series Eco-Friendly Air-Insulated Non-Motorized Smart Ring Main Unit (RMU))

GHXGEN Series Eco-Friendly Air-Insul ated Non-Motorized Smart Ring Main Unit (RMU) Product Introduction The GHXGEN Series Eco-Friendly Non-Motorized Gas Insulated Smart Ring Main Unit (RMU) is a next-generation medium-voltage switchgear designed for sustainable power distribution. Featuring a ...

XGN15-12 High Voltage AC Metal-Enclosed Ring Main Switchgear: Incoming & Transformer Cabinet Solution

XGN15-12 SF₆ Insulated Ring Main Switchgear XGN15-12 SF₆ Ring Main Unit for Reliable 12kV Power Distribution The XGN15-12 SF₆ Insulated Ring Main Switchgear (RMU) is a compact 12kV medium-voltage switchgear designed for safe, reliable, and efficient power distribution in utility, industrial, ...

12kV Eco-Friendly Gas Insulated Ring Main Unit (RMU)

Introducing our eco-friendly gas-insulated ring mani unit (RMU) a next-generation switchgear that eliminates SF₆ . It uses a sustainable gas mixture - sush as clean air or fluoretone-based alternatives-with a global warming potential (GWP) of nearly zero. Key Benefits & Applications: It offers high ...

24kV SF₆ Load Break Switch Manufacturer

FLN36-24D/T630-20-230 24kV SF₆ Load Break Switch Product Introduction The Changyun Intelligent FLN36-24D/T630-20-230 SF₆ Load Break Switch (LBS) is a high-performance medium-voltage switching device designed for 24kV, three-phase AC 50Hz distribution systems . Utilizing SF₆ gas as the insulation and ...

12kV SF6 Ring Main Unit (RMU) for Medium Voltage Power Distribution

GXGND‑12 12 kV SF₆ sealed RMU – IEC certifiedG

More Products

GGD & GBD Low-Voltage Fixed Switchgear

KYN28A-12 Indoor Metal-Clad Withdrawable Medium Voltage Switchgear

Incoming Line Manual Operating Mechanism

Outgoing Line Electri Operating Mechanism

Indoor Disconnecting Switch

SF₆ Gas Insulated Switching Station

DTU-30D Distribution Terminal Unit (DTU) for Smart Distribution Automation

Low Voltage Draw-out Switchgear

Primary & Secondary Integrated Ring Main Unit (Smart RMU)

GHCT-01 DC Type A Motor Spring Operating Mechanism

12kV Indoor High Voltage Disconnect Switch with Earthing Switch

Outdoor High Voltage Cable Distribution Box

Outdoor Combinet Low & Medium Voltage Distribution Cabinet

FLN36-24D/T630-20-230 SF₆ load-break switch

XGN15-12 AC Metal Enclosed Ring Main Unit

XGN15-12 High-voltage Semi-insulated Incoming Ring Main Unit

HXGN-12 Ring Main Unit Operating Mechanism

Incoming Line Electri Operating Mechanism

Outgoing Line Manual Operation Mechanism

High-Conductivity Copper Busbar

Our Partners

Latest Cases

Commercial Complex External Power Supply Line Project – Ring Main Unit (RMU) Procurement

Published on: 2026-07-11 10:09:31

Commercial Complex External Power Supply Line Project – Ring Main Unit (RMU) Procurement Project Scale: Procurement of 5 sets of primary & secondary integrated ring main units (RMU), each configured as 2-inlet, 4-outlet, SF₆-insulated, equipped with centralized DTU, inlet/outlet circuit breakers, ...

10kV SF₆ Ring Main Unit Project for Large Residential Community Grid Connection

Published on: 2026-06-02 14:22:43

Item Details Project Large Community Grid Connection Voltage 10kV Product XGN-12 SF₆ Ring Main Unit Solution Primary & Secondary Integrated RMU Installation Outdoor Features Anti-condensation, Maintenance-free, DA Ready Project Value RMB 5.88 Million Application Residential & Commercial Complex ...

Comprehensive Energy Station 10kV Intelligent Power Distribution

Published on: 2026-06-03 09:43:13

Application Scenario: Centralized Cooling & Heating + Energy Storage New Energy Load Project Overview Located in the Nanjing Jiangbei ,Energy Station #3 serves as a pivotal municipal comprehensive energy project. It integrates centralized cooling, centralized heating, and energy storage peak-shaving ...

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Eco-Friendly Gas Insulated Ring Main Unit – A Green and Low-Carbon Choice for Medium Voltage Distribution

Eco-Friendly Gas Insulated Ring Main Unit – A Green and Low-Carbon Choice for Medium Voltage Distribution As global carbon neutrality accelerates and the power industry imposes stricter controls on greenhouse gases, traditional SF₆‑based ring main units (RMUs) are facing unprecedented challenges. In ...

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2026-07-29 13:59:01

China Ring Main Unit Manufacturer Expands Global OEM Supply

Jiangsu Changyun Strengthens Global OEM Supply as a China Ring Main Unit Manufacturer As the global demand for reliable medium-voltage power distribution infrastructure continues to grow, Jiangsu Changyun Intelligent Technology Co., Ltd., a China Ring Main Unit manufacturer, is expanding its ...

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2026-07-09 09:58:34

Changyun Intelligent Expands Southeast Asian Footprint at Electric & Power Indonesia 2026

Changyun Intelligent Expands Southeast Asian Footprint at Electric & Power Indonesia 2026 Jakarta, Indonesia – September 2–5, 2026 – As Southeast Asia’s largest and most influential power industry event approaches, Changyun Intelligent announces its participation at the 24th Series of Power ...

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Our Certification

China Jiangsu Changyun Intelligent Technology Co., Ltd certification

Standard: ISO 9001 QUALITY MANAGEMENT SYSTEM CERTIFICATE

Standard: ISO 45001 OCCUPATIONAL HEALTH AND SAFETY MANAGEMENT SYSTEM CERTIFICATE

Standard: ISO 14001 ENVIRONMENTAL MANAGEMENT SYSTEM CERTIFICATE