I. Overview
JHGTXGN15-12 Solid Insulated Ring Main Switchgear is a new generation of environmentally friendly composite insulated ring main unit. It is a fully sealed power supply unit, with all live parts and switches sealed in an epoxy resin shell, and no SF6 gas inside the shell. The entire switch device is not affected by external environment, ensuring operational reliability and personal safety, and achieving maintenance free operation.
Solid Insulated Ring Main Unit consists of three types of switches, namely V unit (circuit breaker unit), Unit C (load switch unit), Unit F (combined electrical apparatus unit), each unit can be used independently or expanded freely. Its structure is divided into intelligent control instrument room, operating mechanism and primary part. The instrument room can be equipped with microcomputer protection (controller). The primary part adopts APG automatic gel process, which completely seals the disconnector and arc extinguishing chamber in epoxy resin, and has special joints to connect with the bus. The arc extinguishing chamber uses special copper chromium contact materials, R type longitudinal magnetic field contacts, and complete primary sealing and drainage process. The arc extinguishing chamber can break short circuit current energy and stability, electrical life, temperature rise, and insulation level are all better than the previous arc extinguishing chamber (copper aluminum contact materials, Cup shaped longitudinal magnetic field contact structure and incomplete primary sealing and discharging process have been significantly improved. The operating mechanism adopts a spring operated mechanism that is integrated with the switch, that is, the isolation switch and the main switch spring operated mechanism are integrated as a whole, which can easily achieve interlocking, and the mechanism has fewer parts, reducing unnecessary transmission links, high reliability, and can be electrically operated according to user needs.
Solid insulation fully enclosed switchgear: It is a module with full insulation and sealing performance that uses solid insulation materials as the main insulation medium and conductive connections, isolating switches, grounding switches, main busbars, branch busbars, and other main electrical circuits that are single or combined and encapsulated with solid insulation medium to form one or several modules with certain functions that can be combined or expanded again.
The ring network unit is suitable for 12kV, 50H2 three-phase AC distribution systems, used for ring network power supply or terminal power supply. The ring network unit can be installed in the power distribution system of industrial and mining enterprises, residential areas, schools, parks, etc. It can also be installed in compact box type substations for the control and protection of distribution transformers. So both indoor and outdoor ring network units can achieve distribution automation.
II. Environmental conditions for use
-- Suitable for indoor or outdoor use.
Surrounding air temperature: indoor -10 ° C~+25 ° C, outdoor -60 ° C~+60 ° C.
-- Relative humidity of the air: daily average not exceeding 95%, monthly average not exceeding 90%.
The altitude shall not exceed 3000m.
-- The surrounding air should not be significantly polluted by dust, water vapor, salt spray, corrosive gases, or flammable gases; Outdoor type can be used in harsh environmental conditions.
The installation location should not experience severe vibrations and the seismic intensity should not exceed 8 degrees.
When the above environmental conditions cannot meet the usage requirements, the user shall negotiate with the manufacturer
III. Meet the standard
-- IEC62271-1-2007 High voltage switchgear and control gear Part One: General Specifications
-- IEC62071-2003 "1-52KV AC Metal Enclosed Switchgear and Control Equipment" · GB3906-2006 "3.6-40.5KV AC Metal Enclosed Switchgear and Control Equipment" · GB/T1022-2011 "Common Technical Conditions for High Voltage Switchgear and Control Equipment Standards"
-- GB1984-2014 High Voltage AC Circuit Breakers
-- GB1985-2014 "High Voltage AC Isolating Switches and Grounding Switches"
-- GB3804-2004 "3.6KV~40.5KV High Voltage AC Load Switches"
-- DL/T404-2007 "3.6KV~40.5kV AC Metal Enclosed Switchgear and Control Equipment" · DL/T593-2016 "Common Technical Conditions for High Voltage Switchgear and Control Equipment Standards"
-- Q/GDW730-2012 "Technical Conditions for 12kV Solid Insulated Ring Main Unit"
-- DL/T402-2016 High Voltage AC Circuit Breakers
| Model | Size |
| GTXGN15-12 | 130*100*200cm |
At Jihui Electric Group Co., Ltd., we specialize in the research, development, manufacturing, and service of medium and low voltage power transmission and distribution equipment up to 35kV. Over the years, we have provided electrical solutions for power companies, industrial enterprises, engineering contractors, renewable energy projects, and infrastructure developers.
Through long-term cooperation with customers from different industries, we understand that modern power systems require equipment with higher reliability, safer operation, faster installation, and better environmental adaptability. This is why we developed our Pre Installed Metal Enclosed Ring Net Cage as a practical solution for modern medium voltage power distribution networks.
Our Pre Installed Metal Enclosed Ring Net Cage integrates electrical switching, protection, and distribution functions into a compact metal enclosed structure. The equipment is designed to provide stable power distribution performance while reducing installation complexity at project sites.
Compared with traditional on-site assembled solutions, a pre-installed ring network cabinet is manufactured, assembled, and tested in our factory before delivery. This helps improve product consistency, shorten installation time, and reduce potential problems caused by field assembly.
As a professional manufacturer located in Yueqing Economic Development Zone, China, we focus on every stage of production, including engineering design, component selection, cabinet manufacturing, electrical testing, packaging, and delivery. Our quality management system follows ISO9001, ISO14001, and ISO45001 standards.
We believe that a reliable power distribution cabinet is not just a piece of equipment. It is an important part of a complete electrical system. A stable ring network cabinet helps customers improve power reliability, reduce maintenance pressure, and support continuous operation of industrial and infrastructure projects.
A Pre Installed Metal Enclosed Ring Net Cage is a factory-assembled medium voltage power distribution unit designed for ring network electrical systems. It combines switching devices, protection components, and metal enclosure structures into one complete solution.
The main purpose of this equipment is to receive, distribute, and control electrical power in medium voltage networks. It is commonly used in urban power grids, industrial facilities, commercial buildings, renewable energy projects, and infrastructure applications.
The term "pre installed" means that major components are assembled and tested before leaving the factory. Instead of installing multiple components separately at the project site, customers receive a complete unit that can be connected and put into operation after installation.
The metal enclosed structure provides mechanical protection for internal electrical components. It helps protect the equipment from external influences such as dust, moisture, and accidental contact, improving operational safety.
Our Pre Installed Metal Enclosed Ring Net Cage mainly includes:
Medium voltage switching equipment
Metal enclosed cabinet structure
Protection and control components
Electrical connection system
Safety operation mechanisms
For customers, selecting a suitable ring network cabinet means building a more stable power distribution system with better safety and easier maintenance.
The working principle of our Pre Installed Metal Enclosed Ring Net Cage is based on controlling and distributing medium voltage electrical power through switching, protection, and connection systems.
When electricity enters the ring network cabinet from the main power source, the internal conductive system transfers power to different outgoing circuits. Switching devices control whether the circuit is connected or disconnected according to system requirements.
During normal operation, the equipment distributes electrical energy to different users or electrical loads. When maintenance is required, operators can isolate specific sections to ensure safer working conditions.
If an electrical fault occurs, protection devices help detect abnormal conditions and disconnect the affected circuit. This reduces the impact of faults and improves the reliability of the entire power network.
| Operation Process | Main Equipment Function | Purpose |
|---|---|---|
| Power Receiving | Incoming circuit connection | Receives medium voltage electrical energy |
| Power Distribution | Outgoing circuit system | Transfers electricity to different users |
| Switching Control | Switchgear operating mechanism | Controls circuit connection and isolation |
| Fault Protection | Protection devices | Reduces damage caused by electrical faults |
Source: Working principle based on medium voltage ring network equipment engineering practices and Jihui Electric product design experience.
When we design and manufacture ring network cabinets, we focus on solving practical problems faced by customers. Different projects may have different requirements, but safety, reliability, and easy installation are always important factors.
One of the biggest advantages of our pre installed metal enclosed ring net cage is that most assembly work is completed in our factory.
Traditional power distribution equipment may require more work at the construction site, which can increase installation time and create quality risks. Our factory pre-assembled solution helps simplify project installation and improve construction efficiency.
The metal enclosure provides physical protection for internal electrical components. It improves equipment safety and helps protect the internal system from external environmental conditions.
This design makes the equipment suitable for different application environments, including industrial plants, urban substations, and infrastructure projects.
Power distribution equipment must operate safely under different electrical conditions. Our engineering team carefully selects components and controls production processes to maintain product consistency.
The ring network structure helps improve power supply reliability by providing flexible power distribution paths.
Modern electrical projects often face space limitations. Compact equipment design helps customers reduce installation space while maintaining complete electrical functions.
Our Medium Voltage Ring Network Cabinet combines switching and protection functions in a practical structure suitable for various project locations.
Different customers have different power system requirements. Some projects need standard solutions, while others require customized configurations.
Our engineering team provides solutions according to voltage level, installation environment, project specifications, and customer technical requirements.
During product development, we focus not only on basic electrical functions but also on long-term operation value. Customers need equipment that can work reliably after installation and reduce future maintenance problems.
The following table compares traditional on-site assembled distribution solutions with our factory pre-installed metal enclosed ring network solution.
| Comparison Item | Traditional Site Assembly | Pre Installed Metal Enclosed Ring Net Cage |
|---|---|---|
| Assembly Method | Components assembled at project site | Factory pre-assembled solution |
| Installation Efficiency | Requires more site work | Faster installation after delivery |
| Quality Control | Depends on field installation conditions | Factory-controlled production and testing |
| Space Utilization | Depends on site design | Compact integrated structure |
| Application Range | General power distribution projects | Industrial, urban, renewable energy, infrastructure |
Source: Technical comparison based on power distribution equipment manufacturing practices and Jihui Electric engineering evaluation.
As power systems continue to develop, customers need distribution equipment that provides higher reliability, easier installation, and better long-term performance. A well-designed ring network cabinet can improve the stability of electrical systems and reduce operational challenges.
Our Pre Installed Metal Enclosed Ring Net Cage combines factory manufacturing advantages, reliable electrical technology, and practical application experience. From design confirmation to final delivery, we focus on providing customers with dependable power distribution solutions.
Through continuous improvement in technology and manufacturing processes, Jihui Electric Group continues to support global customers with professional Medium Voltage Electrical Equipment.
During our years of manufacturing and supplying power distribution equipment, we have worked with customers from many different industries. Each industry has different requirements, but one thing is always the same: the power system must operate safely and reliably.
Our Pre Installed Metal Enclosed Ring Net Cage is designed for projects that require stable medium voltage distribution, compact installation, and efficient construction. Because the equipment is factory assembled and tested before delivery, it helps customers reduce installation workload and improve project management efficiency.
Power companies and utility operators require reliable equipment to maintain stable electricity supply. Ring network systems are widely used in urban distribution networks because they provide flexible power supply routes and improve system reliability.
Our metal enclosed ring network cabinet provides safe switching and distribution functions for medium voltage power grids. The enclosed structure protects internal components and supports long-term operation.
The rapid development of solar power, wind energy, and energy storage projects creates increasing demand for reliable medium voltage equipment.
Our Pre Installed Metal Enclosed Ring Net Cage can be integrated into renewable energy power systems to help connect power generation equipment with distribution networks. Its compact structure and reliable performance make it suitable for clean energy applications.
Factories and manufacturing plants depend on continuous electricity supply. Any unexpected power interruption can affect production efficiency and increase operating costs.
Our Medium Voltage Ring Network Cabinet provides stable power distribution and circuit protection for industrial applications, including automotive manufacturing, machinery production, electronic factories, and processing facilities.
Modern cities require electrical equipment that can provide reliable performance while using limited installation space. Commercial buildings, shopping centers, office complexes, and public facilities often require compact power distribution solutions.
The integrated structure of our pre installed ring network cabinet helps simplify installation and provides a practical solution for urban power distribution projects.
Rail transit systems, airports, ports, and logistics centers require highly reliable electrical systems because power interruption can affect large-scale operations.
Our ring network distribution equipment supports safe electrical control and power management for transportation infrastructure projects.
Mining and heavy industries often operate under challenging conditions. Electrical equipment must have strong protection capability and stable performance.
The metal enclosed structure of our ring network cabinet helps protect internal electrical components and provides reliable operation in demanding industrial environments.
| Industry | Typical Application | Main Challenge | Equipment Advantage |
|---|---|---|---|
| Power Utilities | Urban distribution networks | Need stable electricity supply | Reliable ring network power distribution |
| Renewable Energy | Solar and wind projects | Grid connection reliability | Compact and flexible installation |
| Manufacturing | Factories and production lines | Avoid unexpected downtime | Stable switching and protection |
| Commercial Buildings | Business and public facilities | Limited installation space | Space-saving integrated design |
| Infrastructure | Transportation projects | Continuous operation requirements | Reliable medium voltage solution |
Source: Application analysis based on Jihui Electric product application experience and medium voltage distribution project requirements.
At Jihui Electric Group, we believe product reliability starts from the manufacturing process. A high-quality medium voltage distribution cabinet requires strict control from engineering design to final inspection.
Unlike simple field assembly products, our Pre Installed Metal Enclosed Ring Net Cage is manufactured and tested in our factory before delivery. This allows us to control product quality more effectively and provide customers with more stable equipment.
Before manufacturing begins, our engineering team reviews customer requirements carefully. We confirm electrical parameters, installation environment, system requirements, and project conditions.
Based on this information, we provide suitable product configurations and technical solutions. This ensures the final equipment matches the customer's actual application.
The reliability of electrical equipment depends heavily on component quality. We carefully select electrical components, metal materials, insulation parts, and protection devices.
Each important material is checked according to production requirements before entering the manufacturing process.
Our production team follows standardized manufacturing procedures during cabinet fabrication and component assembly.
The metal enclosure, electrical components, switching devices, and internal connections are assembled according to engineering drawings. Every step is controlled to maintain product consistency.
Before shipment, each unit completes inspection and testing procedures. We check electrical performance, mechanical operation, protection functions, and overall equipment condition.
Only products that pass our factory inspection are approved for delivery to customers.
| Production Stage | Control Point | Customer Benefit |
|---|---|---|
| Engineering Review | Confirm technical requirements | Correct product configuration |
| Material Inspection | Check component quality | Improved equipment reliability |
| Assembly Process | Standardized manufacturing | Stable product performance |
| Final Testing | Electrical and mechanical verification | Safe operation after installation |
Source: Jihui Electric Group internal manufacturing process and quality control procedures.
Choosing a power distribution equipment supplier is an important decision. Customers need a manufacturer who can provide not only reliable products but also technical support, project cooperation, and long-term service.
At Jihui Electric Group, we combine manufacturing experience, engineering capability, and quality management to provide complete medium voltage power solutions.
We specialize in the research, development, manufacturing, sales, and service of medium and low voltage power transmission and distribution equipment up to 35kV.
Our products include ring main units, Cable distribution boxes, Cable accessories, Prefabricated Substations, combination transformers, SF6 load switches, Vacuum circuit breakers, and other power distribution equipment.
This complete product experience allows us to understand different project requirements and provide suitable solutions.
Quality control is integrated into every stage of our production. We have established management systems based on ISO9001, ISO14001, and ISO45001 standards.
These systems help us maintain stable production processes, environmental responsibility, and safe manufacturing conditions.
Different customers have different needs. Some require standard distribution cabinets, while others need customized solutions for special applications.
Our engineering team provides customized designs according to customer drawings, technical specifications, installation conditions, and project requirements.
For overseas customers, we provide complete export support, including production arrangement, inspection coordination, packaging protection, and transportation planning.
According to product size, order quantity, and destination, we arrange suitable transportation methods including sea shipping, land transportation, or combined logistics.
| Service Category | Our Capability |
|---|---|
| Technical Support | Product selection and engineering communication |
| Manufacturing | Standard and customized production |
| Quality Control | Factory testing and inspection |
| Packaging | Protection against moisture and transportation impact |
| Delivery | Flexible international logistics solutions |
Source: Jihui Electric Group production and international service information.
It is a factory assembled medium voltage ring network distribution cabinet that integrates switching, protection, and electrical control functions into a metal enclosed structure.
Factory pre installation reduces site assembly work, improves product consistency, shortens installation time, and allows better quality control before delivery.
It can be used in power grids, renewable energy projects, industrial factories, commercial buildings, transportation facilities, and infrastructure projects.
Yes. We provide customized solutions according to voltage level, system requirements, installation conditions, and customer technical specifications.
We control quality through engineering review, material inspection, standardized manufacturing, electrical testing, and final factory inspection.
We support sea transportation, land transportation, and combined logistics solutions according to product specifications and customer destination.
The development of modern power systems requires equipment that combines reliability, efficiency, and practical installation advantages. Customers need solutions that can support current projects while also meeting future power distribution requirements.
Our Pre Installed Metal Enclosed Ring Net Cage provides a reliable solution for medium voltage power distribution. Through factory assembly, professional manufacturing, strict testing, and customer-focused service, we help partners improve power system safety and efficiency.
From urban networks and industrial facilities to renewable energy projects and infrastructure construction, Jihui Electric Group continues to provide dependable electrical equipment for customers around the world.
We believe reliable power starts with reliable equipment. With professional technology, manufacturing experience, and continuous improvement, we are committed to creating better medium voltage power distribution solutions for the future.
JiHui Electric Group Co., Ltd , high-end website construction, foreign trade website construction, marketing website construction, website optimization, development websites, corporate network marketing, search engine promotion, wechat mini program, corporate mailbox, short video operation, etc.
No. 161 Jingliu Road, Yueqing Economic Development Zone, Yueqing City, Zhejiang Province, China
jh.power@jihuielec.com
+86 18967711966
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