I. Overview:
The HXGN15-12 modular sulfur hexafluoride ring main unit is suitable for AC 50HZ, 12kV power systems. Widely used in industrial and civilian cable ring networks and power supply terminals.
II. Main purpose
-- The HXGN15-12 modular sulfur hexafluoride ring main unit is suitable for AC 50HZ, 12kV power systems. Widely used in industrial and civilian cable ring networks and power supply terminals.
-- Specially suitable for the following places: small secondary substations, switch stations, urban residential area power distribution, industrial and mining enterprises, shopping malls, airports, subways, wind power generation, hospitals, sports venues, railways, etc.
III. Normal usage conditions
-- Altitude: ≤ 1000m. (If there are special requirements, please specify them when ordering. Currently, there are 6 groups operating at an altitude of 5200m.)
-- Environmental temperature: -35 ° C+45 ° C, maximum daily average temperature difference ≤ 25 ° C.
-- The average daily relative humidity should not exceed 95%, and the average monthly relative humidity should not exceed 90%.
-- Seismic resistance: 8 degrees.
-- Places with severe vibrations and impacts, as well as no fire, chemical corrosion, or explosion hazards.
IV. Execution standard
IEC298 IEC265 IEC129 IEC694 IEC420 IEC56
IEC529 IEC932 Gb3804 Gb3906 GB11022
V. Cabinet Structure
-- The ring main unit cabinet is formed by riveting 2mm thick aluminum-zinc-coated plates (or cold-rolled plates after powder coating). There are two pressure release holes at the back of the cabinet, one for the cable compartment and the other for the load switch/membrane compartment. This structure can maximize the reliability of personnel installation and equipment operation.
-- Each compartment
-- Cable compartment: The cable compartment is located at the top of the cabinet and is connected to adjacent switch cabinets.
-- Load switch: It is an independent unit and is filled with SF6 gas inside.
-- Cable compartment: Approximately 75% of the space is used for cable connections, fuses, grounding switches, CTs, PTs installation.
-- Mechanism compartment and interlock: The compartment includes the operating mechanism, mechanism interlock, position indication, auxiliary contacts, trip coils, live display, and interlock.
-- Relay box: The relay box is at the top of the cabinet and is optional. The compartment is used to install special devices such as instruments, relays, and motor units.
-- Circuit breaker compartment: One circuit breaker can be placed below the load switch.
-- Pressure release
-- Above pressure release: This is for releasing the gas pressure generated during arc accidents in the cable and load switch compartments.
-- Below pressure release: This is for releasing the gas pressure generated during arc accidents in the cable compartment.
| Model | Size |
| HXGN15-12 | 130*100*200cm |
At Jihui Electric Group Co., Ltd., we focus on designing and manufacturing reliable medium and Low voltage power distribution equipment for global customers. Our HXGN15-12 Unit Type AC Metal Closed Ring Net Switch Equipment is one of our important medium voltage products, developed for safe, stable, and efficient power distribution systems up to 12kV.
With years of experience in electrical equipment manufacturing, we understand that customers need more than just a switchgear product. They need equipment that can operate safely for years, reduce maintenance pressure, fit different project requirements, and provide stable protection for power networks.
The HXGN15-12 Ring Main Unit is designed as an indoor AC metal enclosed switchgear solution. It combines load switching, circuit protection, and power distribution functions in a compact structure. The equipment is widely used in urban power grids, industrial facilities, renewable energy projects, commercial buildings, transportation systems, and infrastructure projects.
Our goal is simple: provide dependable medium voltage power distribution solutions that help customers build safer and more efficient electrical systems.
HXGN15-12 Unit Type AC Metal Closed Ring Net Switch Equipment is a type of Medium Voltage Ring Main Unit designed for 12kV power distribution applications. It belongs to the category of metal enclosed switchgear and is mainly used in ring network power supply systems.
In many cities and industrial areas, power networks require flexible distribution methods. A traditional single power supply line may cause large power interruptions when a fault happens. A ring network system solves this problem by creating multiple power supply paths.
Our HXGN15-12 Ring Main Unit helps control and protect these power paths. When one section of the network needs maintenance or experiences a fault, operators can isolate the affected area while keeping other parts of the system running normally.
The equipment uses a metal enclosed structure, which improves mechanical protection and helps protect internal electrical components from external environmental influences. It is suitable for indoor installation where stable operation, safety, and space efficiency are important.
The HXGN15-12 AC metal closed ring network switchgear is commonly installed in:
Urban distribution networks
Industrial power supply systems
Factory electrical rooms
Commercial buildings
Renewable energy projects
Rail transportation power systems
Mining and petrochemical facilities
Infrastructure construction projects
For engineering companies, power contractors, and equipment integrators, this type of medium voltage switchgear provides a practical solution for improving network reliability while reducing installation space.
The working principle of our HXGN15-12 Unit Type AC Metal Closed Ring Net Switch Equipment is based on controlling, distributing, and protecting medium voltage electrical circuits.
The equipment mainly consists of switch units, metal enclosure, busbar system, load switches, grounding switches, and protection components. Different functional units work together to achieve safe power transmission and distribution.
During normal operation, electrical power enters through the incoming cable and passes through the internal busbar system. The load switch controls the connection and disconnection of the circuit according to operational requirements.
When abnormal conditions such as short circuits or overloads occur, protection devices quickly detect the problem and disconnect the faulty section. This prevents damage from spreading throughout the power network.
The grounding switch provides additional safety during maintenance. Before technicians work inside the equipment, the circuit can be grounded to reduce the risk of electrical accidents.
Because of this design, the HXGN15-12 Ring Main Unit offers a balance between operational safety, system flexibility, and maintenance convenience.
Space is often limited in modern cities and industrial facilities. Our HXGN15-12 metal enclosed switchgear adopts a compact structure that saves installation space while maintaining electrical performance.
The metal enclosure provides strong mechanical protection and improves equipment durability. Compared with traditional open-type electrical equipment, enclosed switchgear offers better protection for internal components.
Stable switching performance is one of the most important requirements for medium voltage equipment. Our HXGN15-12 switchgear is designed for frequent operation in distribution systems.
The load switch provides reliable current control, while protection components help reduce risks caused by abnormal electrical conditions.
Electrical safety is always our priority during product development. The equipment design considers operator protection, maintenance requirements, and long-term operation reliability.
The internal structure separates different functional areas, helping technicians complete inspections and maintenance work more safely.
Different customers have different power distribution requirements. Some projects need simple incoming and outgoing units, while others require more complex protection and measurement functions.
Our HXGN15-12 Ring Main Unit supports flexible configuration according to project requirements, including different combinations of switch units, protection devices, and cable connection methods.
When selecting medium voltage power distribution equipment, customers usually compare reliability, installation space, maintenance requirements, and operating cost.
Based on common industry application data, metal enclosed ring main units provide several practical advantages compared with traditional open distribution systems.
| Comparison Item | Traditional Open Switchgear | HXGN15-12 Metal Enclosed Ring Main Unit |
|---|---|---|
| Protection Structure | Open structure with lower external protection | Metal enclosed design with stronger mechanical protection |
| Installation Space | Requires larger installation area | Compact structure suitable for limited spaces |
| Safety Level | More exposed electrical components | Separated internal units improve operation safety |
| Maintenance Requirement | Higher maintenance demand | Designed for easier inspection and maintenance |
Source: Comparison based on common medium voltage switchgear engineering practices and IEC 62271 metal enclosed switchgear application guidelines.
Power distribution equipment works behind almost every modern industry. A small failure in a medium voltage system can affect production lines, buildings, transportation services, and energy projects.
For this reason, we focus on three important points when producing HXGN15-12 Unit Type AC Metal Closed Ring Net Switch Equipment:
Stable electrical performance
Long service life
Safe operation under different working conditions
Our engineers consider real project conditions during product development. Factors such as operating frequency, installation environment, cable connection requirements, and maintenance methods are carefully reviewed.
This practical approach helps us provide medium voltage switchgear that meets the needs of different industries and applications.
| Equipment Type | Typical Voltage Range | Main Advantage | Common Application |
|---|---|---|---|
| HXGN15-12 Ring Main Unit | 12kV | Compact structure and flexible ring network operation | Urban grids, factories, commercial buildings |
| Low Voltage Switchgear | Below 1kV | Suitable for final distribution | Building and machine power systems |
| High Voltage Open Switchgear | Above 12kV | Large capacity power transmission | Substations and large power stations |
Source: Industry classification reference based on IEC power equipment standards and common electrical engineering applications.
The development of modern industries brings new challenges to electrical systems. Factories require continuous production, cities require stable electricity supply, and renewable energy projects require flexible grid connection solutions.
Our HXGN15-12 Unit Type AC Metal Closed Ring Net Switch Equipment is developed to support these changing requirements.
Whether used in an industrial plant, commercial complex, renewable energy project, or urban distribution network, the equipment provides reliable control and protection for medium voltage electrical systems.
During our years of manufacturing medium voltage power distribution equipment, we have seen that different industries have different expectations for electrical systems. Some customers focus on continuous operation, some need space-saving solutions, and others require equipment that can work reliably in complex environments.
Our HXGN15-12 Unit Type AC Metal Closed Ring Net Switch Equipment is designed to meet these practical needs. As a reliable 12kV Metal Enclosed Switchgear solution, it provides stable power control and protection for many application fields.
Modern cities require stable electricity every day. Residential communities, office buildings, shopping centers, and public facilities all depend on reliable medium voltage distribution systems.
The HXGN15-12 Ring Main Unit helps improve the flexibility of urban power networks. Through ring network operation, power supply reliability can be improved because the system can provide alternative power paths when maintenance or faults occur.
For urban distribution projects where installation space is limited, our compact indoor metal enclosed switchgear provides an efficient solution.
Factories often operate large production equipment that requires continuous and stable power supply. Unexpected power interruptions may affect production schedules and increase operating costs.
Our HXGN15-12 AC metal closed ring network switchgear is suitable for industrial power distribution systems because it provides reliable switching and protection functions.
It can be used in industries such as:
Automotive manufacturing
Machinery production
Electronic manufacturing
Metal processing
Food processing
Chemical production
With the rapid growth of solar power, wind energy, and other renewable energy projects, reliable medium voltage connection equipment has become increasingly important.
Our HXGN15-12 Ring Main Unit can be integrated into renewable energy distribution systems to support safe power transmission between generation equipment and the electrical grid.
The equipment helps renewable energy projects achieve stable operation through effective circuit control and protection.
Rail transit systems, airports, ports, and public infrastructure require highly reliable electrical systems.
Power distribution equipment used in these projects must provide stable operation, easy maintenance, and strong safety performance.
Our medium voltage switchgear products are designed according to industrial requirements and can support different infrastructure power distribution applications.
At Jihui Electric Group, we believe that product reliability starts from manufacturing details. A good switchgear product is not only about design drawings. Every production step affects final performance.
Our manufacturing process includes engineering design, material selection, sheet metal processing, component assembly, electrical testing, and final inspection.
Before production begins, our engineers review customer requirements, including voltage level, application environment, installation conditions, and functional configuration.
For customized projects, we communicate technical details with customers to ensure the equipment matches actual site requirements.
The enclosure, electrical components, insulation materials, and mechanical parts directly influence equipment performance.
We select materials according to product standards and application requirements. The metal enclosure is processed to provide strong protection, while internal insulation components are selected to ensure stable electrical performance.
The cabinet structure requires accurate dimensions and reliable mechanical strength.
During production, we use professional processing equipment to complete cutting, bending, welding, and surface treatment procedures.
Precise manufacturing helps ensure proper assembly and long-term mechanical stability.
After cabinet production, our technicians install switching components, busbars, protection devices, and control systems according to technical drawings.
Each unit undergoes electrical testing before delivery. We check insulation performance, mechanical operation, circuit connection, and protection functions.
| Production Stage | Main Work Content | Quality Control Purpose |
|---|---|---|
| Design Review | Confirm technical parameters and customer requirements | Ensure correct product configuration |
| Cabinet Manufacturing | Metal processing, welding, surface treatment | Improve structural strength and durability |
| Component Assembly | Install switches, busbars, protection devices | Ensure electrical system reliability |
| Final Testing | Electrical and mechanical performance inspection | Verify safe operation before delivery |
Source: Jihui Electric internal production and quality management procedures.
For Medium Voltage Electrical Equipment, quality inspection is not an optional step. It is the foundation of safe operation.
At Jihui Electric, we operate according to international management system requirements, including:
ISO9001 Quality Management System
ISO14001 Environmental Management System
ISO45001 Occupational Health and Safety Management System
Before shipment, each HXGN15-12 Unit Type AC Metal Closed Ring Net Switch Equipment completes inspection procedures to confirm that it meets technical requirements.
Our testing focuses on:
Insulation performance
Electrical connection reliability
Switch operation performance
Mechanical structure inspection
Appearance and packaging inspection
Choosing a medium voltage equipment supplier is an important decision. Customers need not only a product supplier but also a long-term technical partner.
At Jihui Electric Group, we combine manufacturing experience, engineering capability, and service support to provide complete power distribution solutions.
We specialize in medium and low voltage power transmission and distribution equipment up to 35kV.
Our product range includes:
Ring Main Units
Medium Voltage Switchgear
Low Voltage Switchgear
Combination Transformers
This product experience allows us to understand different project requirements and provide suitable solutions.
Every project has different technical conditions. Installation space, electrical capacity, operating environment, and protection requirements may vary.
We support customized HXGN15-12 Ring Main Unit solutions according to customer specifications.
Our engineering team can assist customers with:
Product configuration selection
Technical parameter confirmation
Project requirement analysis
Delivery coordination
We provide professional support for international customers, including technical communication, production arrangement, inspection service, export packaging, and transportation coordination.
According to different destinations, products can be transported by sea, land, or combined transportation methods.
Before shipment, professional packaging methods are used to protect equipment from moisture, vibration, and collision during transportation.
HXGN15-12 is mainly used for 12kV medium voltage power distribution systems. It provides electrical switching, control, and protection functions in ring network applications.
Yes. The equipment is widely used in factories, industrial parks, commercial buildings, renewable energy projects, and infrastructure systems where reliable medium voltage power distribution is required.
A ring main unit is designed specifically for ring network distribution systems. It provides flexible power supply paths and helps improve network reliability. Traditional switchgear may focus more on single-line distribution applications.
Yes. We can customize product configurations according to voltage requirements, installation conditions, project standards, and customer technical specifications.
Our company has obtained ISO9001 quality management certification, ISO14001 environmental management certification, and ISO45001 occupational health and safety certification.
The HXGN15-12 Unit Type AC Metal Closed Ring Net Switch Equipment is designed for customers who need safe, reliable, and efficient medium voltage power distribution solutions.
From product design and manufacturing control to testing and international delivery, we focus on every detail that affects equipment performance.
As a professional manufacturer of medium voltage power equipment, Jihui Electric Group continues to improve technology, manufacturing capability, and customer service to support global power infrastructure development.
If you are looking for a reliable HXGN15-12 Ring Main Unit supplier, 12kV metal enclosed switchgear manufacturer, or customized medium voltage power distribution solution, we are ready to support your project.
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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