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 focus on developing and manufacturing reliable medium and low voltage power transmission and distribution equipment for global customers. Over the years, we have worked with power companies, engineering contractors, equipment integrators, renewable energy developers, industrial manufacturers, and infrastructure projects. Through these experiences, we understand that modern electrical systems need equipment that is not only reliable but also environmentally responsible.
Our Zero SF6 Emission 24kV Solid Insulated Distribution Unit is developed to meet the growing demand for cleaner and safer medium voltage power distribution solutions. With advanced solid insulation technology, this product eliminates the use of SF6 gas while maintaining stable electrical performance, compact structure, and long service life.
As the global energy industry moves toward green development, many customers are looking for alternatives to traditional medium voltage switchgear solutions. They want equipment that can reduce environmental impact without sacrificing safety and reliability. Our SF6-Free medium voltage distribution unit provides a practical solution for renewable energy systems, industrial facilities, urban power networks, and modern infrastructure projects.
We manufacture this 24kV solid insulated distribution unit according to strict production procedures. From material selection and component assembly to electrical testing and final inspection, every step is controlled by our professional engineering and production teams. Our company has obtained ISO9001 quality management system certification, ISO14001 environmental management system certification, and ISO45001 occupational health and safety management system certification.
For us, electrical equipment is not just a product. It is a long-term investment for customers. A reliable distribution unit helps reduce unexpected downtime, improve power system safety, and support continuous operation. That is why we continue improving our technology and manufacturing process to provide better medium voltage solutions.
The Zero SF6 Emission 24kV Solid Insulated Distribution Unit is an environmentally friendly medium voltage power distribution device designed for electrical systems up to 24kV. It is mainly used for power receiving, distribution, switching control, and circuit protection in medium voltage networks.
Traditional medium voltage switchgear often uses SF6 gas as an insulation medium because of its excellent electrical insulation properties. However, SF6 is a greenhouse gas, and many industries are now seeking cleaner alternatives. Our solid insulated distribution unit replaces gas insulation with solid insulation technology, providing a more sustainable solution.
The main insulation components of our equipment use high-performance solid materials. These materials provide stable insulation performance, strong mechanical protection, and good environmental resistance. The enclosed design protects internal electrical components from dust, moisture, and external conditions.
Our Zero SF6 Emission 24kV Solid Insulated Distribution Unit is designed for applications requiring:
Environmentally friendly medium voltage power distribution
Reliable electrical insulation performance
Compact installation structure
Reduced maintenance requirements
Stable operation in different environments
For customers planning renewable energy projects, smart grids, industrial plants, and urban power systems, this type of SF6-Free medium voltage switchgear provides a future-oriented choice.
The working principle of our Zero SF6 Emission 24kV Solid Insulated Distribution Unit is based on three key functions: electrical connection, insulation protection, and circuit control.
When electricity enters the distribution unit from the upstream power network, the conductive components transfer electrical energy through the internal circuit system. The solid insulation structure surrounds important electrical parts, preventing unwanted electrical discharge and improving operational safety.
When operators need to control the power system, switching devices inside the unit can connect or disconnect circuits according to operating requirements. If an abnormal condition occurs, such as overload or short circuit, protection components help isolate the affected section and protect the overall electrical network.
The solid insulated design allows the equipment to maintain reliable performance without relying on SF6 gas insulation. This helps simplify maintenance work and supports long-term stable operation.
| Operating Function | Main Structure | Purpose |
|---|---|---|
| Power Receiving | Conductive connection system | Receives medium voltage electricity from the grid |
| Insulation Protection | Solid insulation components | Provides electrical isolation and prevents faults |
| Switching Control | Switching mechanism | Controls circuit connection and disconnection |
| Safety Protection | Protection devices | Helps reduce damage caused by abnormal conditions |
Source: Product operating principle based on medium voltage distribution equipment engineering practices and Jihui Electric product design experience.
During the development of this product, our engineering team focused on solving common problems faced by customers in real projects. A good medium voltage distribution unit must provide stable operation, easy maintenance, environmental protection, and flexible installation.
The most important feature of this distribution unit is the complete elimination of SF6 gas. By using solid insulation technology, we help customers reduce environmental concerns related to traditional gas insulation systems.
This makes our product especially suitable for green energy projects, low-carbon infrastructure, and companies that are improving their environmental performance.
Electrical stability is always the first consideration for medium voltage equipment. Our 24kV solid insulated distribution unit provides reliable insulation performance and stable electrical operation.
We carefully select electrical components and control production quality to ensure the equipment can operate safely under different working conditions.
Modern power projects often face limited installation space. A compact distribution unit helps customers improve space utilization while maintaining complete electrical functions.
Our enclosed structure integrates protection and switching functions into a practical design, making it suitable for substations, industrial facilities, commercial buildings, and renewable energy applications.
Maintenance cost is an important concern for many customers. Equipment that requires frequent inspection or special maintenance can increase long-term operating costs.
Because our unit uses solid insulation technology instead of SF6 gas insulation, customers can reduce maintenance work related to gas monitoring and management.
Different projects have different technical requirements. Some customers need specific electrical parameters, while others require customized installation structures.
Our engineering team provides solutions based on customer drawings, project conditions, and technical specifications. We support both standard products and customized manufacturing.
When customers select medium voltage equipment, they usually compare environmental performance, reliability, maintenance requirements, and installation flexibility. Our Zero SF6 Emission 24kV Solid Insulated Distribution Unit provides advantages in these areas.
| Comparison Item | Traditional SF6 Insulated Equipment | Zero SF6 Emission Solid Insulated Unit |
|---|---|---|
| Insulation Medium | SF6 gas insulation | Solid insulation materials |
| Environmental Impact | Requires SF6 gas management | No SF6 emission during operation |
| Maintenance | Requires gas system inspection | Reduced insulation maintenance needs |
| Design Trend | Traditional technology | Green and sustainable solution |
| Application Direction | General medium voltage systems | Renewable energy, smart grid, modern infrastructure |
Source: Comparison based on general medium voltage switchgear technology characteristics and Jihui Electric engineering evaluation.
The demand for cleaner and safer electrical equipment continues to grow worldwide. Customers are no longer looking only at purchase costs; they also consider environmental responsibility, operating stability, and long-term value.
Our Zero SF6 Emission 24kV Solid Insulated Distribution Unit represents our commitment to providing modern power distribution solutions. By combining solid insulation technology, professional manufacturing, and strict quality control, we help customers build safer and more sustainable electrical systems.
From renewable energy projects to industrial power networks, we continue supporting global customers with reliable medium voltage equipment designed for the future.
During our cooperation with customers around the world, we have found that power distribution requirements are becoming more complex. Different industries need electrical equipment that can handle different operating conditions, while also meeting higher requirements for safety, environmental protection, and reliability.
Our Zero SF6 Emission 24kV Solid Insulated Distribution Unit is designed for modern medium voltage applications where stable power supply and sustainable operation are important. With its compact structure, solid insulation technology, and reliable electrical performance, it can be used in many industries.
The renewable energy industry is one of the fastest-growing application areas for SF6-Free medium voltage switchgear. Solar power plants, wind farms, and energy storage projects require reliable equipment to connect generated electricity with the power grid.
Our 24kV solid insulated distribution unit helps renewable energy developers build cleaner power systems by eliminating SF6 gas and providing stable medium voltage distribution performance. It is suitable for applications where environmental protection and long-term reliability are both important.
Factories and industrial plants depend on continuous electricity supply. Unexpected power interruption may affect production schedules, increase operating costs, and reduce efficiency.
Our solid insulated power distribution unit provides reliable circuit control and protection for manufacturing facilities, including automotive plants, electronic factories, machinery production sites, and other industrial applications.
As cities continue to develop, electrical equipment needs to become more compact and environmentally friendly. Space limitations and strict safety requirements are common challenges in urban power projects.
The compact design of our Zero SF6 Emission 24kV Solid Insulated Distribution Unit allows flexible installation in urban substations, commercial buildings, office centers, and public facilities.
Rail transit systems, airports, ports, and logistics centers require stable power systems because electrical reliability directly affects daily operation.
Our medium voltage distribution equipment provides dependable switching and protection functions for transportation infrastructure projects that require continuous and safe power supply.
Mining sites and petrochemical facilities often operate under demanding conditions. Electrical equipment used in these environments needs strong protection, stable insulation performance, and reliable operation.
Our enclosed solid insulated distribution unit provides a practical solution for industrial environments requiring durable medium voltage equipment.
| Industry | Typical Application | Main Requirement | Solution Value |
|---|---|---|---|
| Renewable Energy | Solar, wind, energy storage | Green and reliable power connection | SF6-free sustainable distribution solution |
| Industrial Manufacturing | Factories and production systems | Continuous power supply | Stable switching and protection performance |
| Urban Construction | Buildings and public facilities | Compact installation | Space-saving medium voltage equipment |
| Transportation | Railways, airports, ports | High operational reliability | Safe electrical control system |
| Mining & Petrochemical | Heavy industrial projects | Environmental adaptability | Reliable operation in complex conditions |
Source: Application analysis based on Jihui Electric product application experience and medium voltage power distribution requirements in different industries.
At Jihui Electric Group, we believe that product reliability starts from the manufacturing process. A high-performance medium voltage distribution unit requires careful control from design, material selection, production assembly, and testing.
Our manufacturing process combines engineering experience with standardized production management. Every step is designed to ensure product consistency and long-term operating reliability.
Before production begins, our engineering team reviews customer requirements, including voltage level, installation environment, operating conditions, and technical specifications.
Based on these requirements, we select suitable product configurations and provide customized technical solutions when necessary. This helps ensure the equipment matches the customer's actual application.
Material selection directly affects the service life and safety performance of electrical equipment. We carefully choose insulation materials, conductive components, cabinet structures, and protection devices.
The solid insulation materials used in our Zero SF6 Emission 24kV Solid Insulated Distribution Unit provide excellent electrical insulation, mechanical strength, and environmental resistance.
During manufacturing, our production team follows standardized procedures to assemble each component accurately. Electrical connections, mechanical structures, and protection systems are carefully checked.
This production method helps improve product consistency and ensures every unit meets quality requirements before delivery.
Before shipment, each distribution unit undergoes inspection and testing. We check electrical performance, insulation condition, mechanical operation, and overall product quality.
Only products that pass our inspection process are delivered to customers. This allows customers to receive equipment with stable performance and reliable operation.
| Manufacturing Stage | Quality Focus | Customer Benefit |
|---|---|---|
| Engineering Design | Technical matching and customization | Suitable solution for project requirements |
| Material Inspection | Insulation and component quality | Improved product reliability |
| Assembly Process | Installation accuracy | Stable equipment performance |
| Final Testing | Electrical and mechanical verification | Safe operation after delivery |
Source: Jihui Electric Group internal manufacturing process and quality inspection procedures.
Choosing a medium voltage equipment supplier means choosing a long-term technical partner. Customers need a manufacturer who understands electrical systems, provides consistent quality, and supports projects from the beginning to final operation.
At Jihui Electric Group, we combine product development capability, manufacturing experience, and professional service to provide complete power distribution 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 product range includes Cable accessories, Cable distribution boxes, ring main units, Prefabricated Substations, combination transformers, SF6 load switches, Vacuum circuit breakers, and solid insulated switchgear.
Quality is always a key part of our production philosophy. We have established management systems based on ISO9001 quality management, ISO14001 environmental management, and ISO45001 occupational health and safety standards.
These systems help us maintain stable production processes, responsible environmental practices, and safe manufacturing operations.
Every customer project has different requirements. Some need compact equipment for limited spaces, while others require special configurations for renewable energy or industrial applications.
Our engineering team works closely with customers to provide suitable solutions according to project drawings, technical parameters, and application conditions.
For international customers, we provide complete export services including production coordination, inspection support, packaging protection, and transportation arrangements.
According to product size, quantity, and destination, we select suitable transportation methods including sea transportation, land transportation, or combined logistics solutions.
| Service Item | Our Capability |
|---|---|
| Technical Support | Professional product selection and project communication |
| Manufacturing | Standard and customized medium voltage equipment production |
| Quality Inspection | Factory testing and delivery verification |
| Packaging | Moisture-proof and shock-resistant export packaging |
| Transportation | Flexible international logistics solutions |
Source: Jihui Electric Group production, service, and export capability information.
It is an environmentally friendly medium voltage distribution device that uses solid insulation technology instead of SF6 gas insulation. It provides safe switching, power distribution, and circuit protection for 24kV electrical systems.
SF6-Free equipment helps reduce environmental impact while maintaining reliable electrical performance. It supports customers who are building cleaner and more sustainable power systems.
Solid insulation provides stable electrical insulation, good mechanical strength, and strong environmental resistance. It also reduces maintenance requirements related to gas insulation systems.
Yes. The Zero SF6 Emission 24kV Solid Insulated Distribution Unit is suitable for solar power plants, wind farms, energy storage projects, and other renewable energy applications.
Yes. We support customized production according to customer technical requirements, drawings, installation conditions, and project specifications.
We control quality through material inspection, standardized manufacturing, electrical testing, and final inspection before delivery.
We support international transportation solutions including sea shipping, land transportation, and combined logistics according to customer location and project requirements.
The future of electrical systems is moving toward safer, smarter, and more environmentally responsible solutions. Customers around the world are looking for power equipment that can provide reliable performance while supporting sustainable development.
Our Zero SF6 Emission 24kV Solid Insulated Distribution Unit represents our commitment to this direction. Through solid insulation technology, professional manufacturing, and strict quality control, we help customers create more reliable and cleaner medium voltage power networks.
From renewable energy projects and industrial facilities to urban infrastructure and commercial applications, Jihui Electric Group continues to provide dependable electrical solutions for global partners.
We believe that better power equipment creates better energy systems. With professional technology, responsible manufacturing, and customer-focused service, we are ready to support the next generation of medium voltage power distribution.
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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