I. Overview
KYN28A-12 (Z) armored withdrawable AC metal enclosed switchgear (hereinafter referred to as "switchgear") is suitable for three-phase AC 50Hz power systems, used for receiving and distributing electrical energy and controlling, protecting, and monitoring circuits. This product complies with the standards: GB3906 "3-35kV AC Metal Enclosed Switchgear", GB/T11022 "Common Technical Requirements for High Voltage Switchgear and Control Equipment", IEC60298 "AC Metal Enclosed Switchgear and Control Equipment with Rated Voltage of 1kV and Above".
II. Terms of Use
1. Surrounding air temperature: maximum temperature+40 ℃, minimum temperature -15 ℃;
2. Relative humidity: Daily average relative humidity: ≤ 95%, daily average water vapor pressure not exceeding 2.2KPa; monthly average
Relative humidity ≤ 90%; The monthly average water vapor pressure shall not exceed 1.8KPa;
3. Altitude: ≤ 1000m;
4. Earthquake intensity: not exceeding magnitude 8;
5. The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc;
6. Places without severe vibration;
7. When used beyond the normal conditions specified in GB3906, the user and our company shall negotiate.
III. Structural characteristics
1. All metal modular assembly structure, the cabinet is made of imported aluminum zinc coated plate with strong anti-corrosion ability, without surface treatment. It is processed by CNC high-precision equipment and adopts advanced multiple folding technology. The connection is made with rivet nuts and high-strength bolts, with high precision, light weight, and good strength.
2. The switchgear can be equipped with Vacuum circuit breakers such as VS1 series, VD4 series, ZN65 series, etc., with wide adaptability and strong interchangeability. The handcart is equipped with a working position, a testing position, and positioning and display devices at each position, ensuring safety and reliability.
3. The cable room can accommodate up to 9 single core cables, and the equipment has reliable mechanical and electrical interlocking devices, fully meeting the "five prevention" requirements. Each room is equipped with a pressure relief channel to ensure personal safety during operation.
| Model | Size |
| KYN28-12 | 100*170*230cm |
KYN28A-12 10kV Medium Voltage Air Insulated Switch Cabinet, 630A-2500A Removable Vacuum circuit breaker Panel for Substation
At Jihui Electric Group Co., Ltd., we specialize in the research, development, manufacturing, and supply of medium and low voltage power transmission and distribution equipment up to 35kV. For many years, we have worked with power companies, engineering contractors, equipment integrators, industrial enterprises, and infrastructure project developers to provide safe and reliable electrical solutions.
Among our core medium voltage products, the KYN28A-12 10kV Medium Voltage Air Insulated Switch Cabinet is one of our widely applied solutions for power distribution systems. Designed for substations and industrial electrical networks, this switch cabinet combines air insulation technology, removable vacuum circuit breaker design, and flexible configuration options.
We understand that every power system has different requirements. Some customers need stable operation for factories, some need reliable equipment for substations, and some need easy maintenance solutions for long-term projects. A good medium voltage switch cabinet should not only distribute electricity but also provide protection, control, and convenient operation.
The KYN28A-12 switch cabinet is designed for 10kV medium voltage applications with current ratings from 630A to 2500A. It is suitable for incoming and outgoing feeder systems, transformer protection, power distribution stations, industrial facilities, renewable energy projects, and other medium voltage applications.
With a removable vacuum circuit breaker panel structure, operators can perform inspection and maintenance more efficiently. The air insulated design provides reliable electrical insulation performance while maintaining a practical and cost-effective structure.
At Jihui Electric, we focus on producing equipment that customers can trust. Our products are manufactured under ISO9001 quality management standards, ISO14001 environmental management standards, and ISO45001 occupational health and safety management standards.
From engineering design and component selection to production testing and delivery, we control every important step to ensure our KYN28A-12 10kV Medium Voltage Air Insulated Switch Cabinet meets project requirements.
When we communicate with customers in different markets, we often hear similar concerns. They need equipment that can operate safely, handle different electrical loads, reduce maintenance costs, and provide stable performance over many years.
Traditional fixed electrical equipment may create challenges during maintenance because replacing or checking internal components can take more time. For modern power systems, especially industrial and infrastructure projects, maintenance efficiency is becoming increasingly important.
That is why we developed the KYN28A-12 Removable Vacuum Circuit Breaker Panel solution. The removable design allows the breaker unit to move between working position and testing position, making inspection and maintenance easier.
At the same time, the air insulated switch cabinet structure provides a simple and reliable insulation method. Compared with more complex insulation systems, air insulation is easier to maintain and widely accepted in many medium voltage applications.
Our design focuses on practical customer needs:
Reliable electrical protection for 10kV power systems
Flexible current selection from 630A to 2500A
Easy maintenance with removable circuit breaker design
Stable operation in indoor electrical environments
Customized solutions for different projects
The main function of the KYN28A-12 Medium Voltage Air Insulated Switch Cabinet is to receive, control, protect, and distribute electrical power safely. It works as an important connection point between the power source and electrical loads.
When electricity enters the switch cabinet, it first passes through the incoming section. The vacuum circuit breaker controls the connection and disconnection of the electrical circuit according to operating conditions.
The vacuum circuit breaker uses a vacuum environment to interrupt current. When a fault occurs, such as short circuit or overload, the breaker can quickly disconnect the circuit to protect other electrical equipment.
Inside the cabinet, the busbar system transfers electrical energy between different functional units. Protection relays and control components monitor system conditions and help operators manage the power distribution process.
The removable vacuum circuit breaker panel provides additional convenience. During maintenance, technicians can move the breaker unit into a testing position without removing the entire cabinet structure.
The complete operation process includes:
Receiving electrical power from incoming feeders
Controlling circuits through vacuum circuit breakers
Distributing power through busbar systems
Protecting equipment during abnormal conditions
Supporting measurement and monitoring functions
The KYN28A-12 switch cabinet uses air insulation technology, which is a mature and widely used solution in medium voltage power systems.
This design provides stable insulation performance and makes daily maintenance more convenient. For customers looking for reliable 10kV medium voltage distribution equipment, air insulated switch cabinets remain a practical choice.
Maintenance efficiency is an important consideration for electrical projects. Our removable vacuum circuit breaker panel design allows easier operation and inspection.
The breaker unit can be moved between different positions according to operation requirements. This reduces maintenance difficulty and helps shorten service time.
Different projects have different power capacity requirements. The KYN28A-12 switch cabinet supports current ratings from 630A to 2500A, providing flexibility for various applications.
Whether used in industrial factories, substations, or power distribution projects, customers can select suitable configurations according to actual electrical requirements.
The cabinet structure provides protection for internal electrical components. Different functional sections are arranged separately to improve operation safety and equipment reliability.
This design helps reduce the influence between different compartments and supports safer operation during maintenance and inspection.
Every project has different requirements. We provide customized configurations based on customer needs, including:
Incoming feeder cabinet
Outgoing feeder cabinet
Transformer protection cabinet
Bus sectional cabinet
PT cabinet
Metering cabinet
Customized control solutions
When designing medium voltage equipment, we focus on four important factors: safety, reliability, maintenance convenience, and long service life.
The KYN28A-12 10kV Medium Voltage Air Insulated Switch Cabinet combines these advantages into one practical solution. It is designed to support stable power distribution while reducing operation difficulties for customers.
| Technical Item | KYN28A-12 Specification | Customer Benefit |
|---|---|---|
| Rated Voltage | 10kV Medium Voltage System | Suitable for common industrial and substation applications |
| Rated Current | 630A-2500A | Flexible selection for different power loads |
| Insulation Type | Air Insulated Design | Reliable and convenient maintenance |
| Circuit Breaker | Removable Vacuum Circuit Breaker | Easy inspection and replacement |
| Application | Substation and Distribution System | Wide industrial application range |
Source: Technical information is based on Jihui Electric Group product specifications and medium voltage switchgear engineering standards.
| Parameter | Details |
|---|---|
| Product Name | KYN28A-12 10kV Medium Voltage Air Insulated Switch Cabinet |
| Rated Voltage | 10kV |
| Rated Current | 630A / 1250A / 1600A / 2000A / 2500A |
| Breaker Type | Removable Vacuum Circuit Breaker |
| Installation Type | Indoor Installation |
| Main Functions | Power Distribution, Protection, Control |
| Typical Applications | Substations, Industrial Plants, Power Networks |
Source: Specification data is prepared according to Jihui Electric Group manufacturing standards and customer project requirements.
During our years of working with customers from different industries, we have learned that each power distribution project has its own challenges. Some customers focus on equipment safety, some care about maintenance efficiency, and others need a reliable solution that can support future expansion.
Our KYN28A-12 10kV Medium Voltage Air Insulated Switch Cabinet is designed for these real-world requirements. With reliable switching performance, flexible configuration, and removable vacuum circuit breaker technology, it provides stable power distribution support for various applications.
Substations are important parts of modern power networks. They require equipment that can operate continuously and safely under different load conditions.
The KYN28A-12 Vacuum Circuit Breaker Panel for Substation applications provides reliable circuit control and protection. It helps power companies and engineering contractors build safer medium voltage distribution systems.
For utility projects, stable operation and easy maintenance are important factors. Our removable circuit breaker design helps maintenance teams complete inspections more efficiently.
Modern factories depend on stable electricity to operate production lines, automated machines, motors, and control systems. Any unexpected power interruption may affect production efficiency.
Our KYN28A-12 Medium Voltage Switch Cabinet is suitable for manufacturing industries including automotive, machinery, electronics, metal processing, chemical production, and industrial parks.
The 630A-2500A current range allows customers to select suitable configurations based on their electrical load requirements.
The development of solar power and wind energy projects has increased demand for reliable medium voltage equipment.
Renewable energy systems need stable electrical connections between power generation units and the grid. Our 10kV Medium Voltage Air Insulated Switch Cabinet can support these applications by providing reliable switching and protection functions.
Customized configurations allow our equipment to adapt to different project sizes and technical requirements.
Large buildings, transportation systems, airports, ports, and public facilities require dependable power supply systems.
The KYN28A-12 indoor switch cabinet provides a practical solution for these projects because it combines safe operation, compact structure, and convenient maintenance.
Mining and petrochemical facilities often operate under demanding conditions where electrical safety is extremely important.
Reliable medium voltage switchgear helps maintain continuous power supply for heavy equipment, production systems, and supporting facilities.
| Industry | Main Electrical Requirement | KYN28A-12 Application Value |
|---|---|---|
| Power Substation | Reliable switching and protection | Stable 10kV power distribution solution |
| Industrial Factory | Continuous production power | 630A-2500A flexible current selection |
| Renewable Energy | Grid connection stability | Customizable medium voltage configuration |
| Infrastructure | Safe long-term operation | Reliable indoor distribution equipment |
Source: Application information is based on Jihui Electric Group project experience and common medium voltage distribution applications.
At Jihui Electric Group, we believe that product reliability comes from every detail in the manufacturing process. A medium voltage switch cabinet is not only a metal structure; it is a complete electrical system that requires accurate design, professional assembly, and strict inspection.
Before production starts, our engineering team communicates with customers to understand project requirements, including voltage level, current capacity, installation environment, protection functions, and technical standards.
For customized KYN28A-12 10kV Medium Voltage Switch Cabinet projects, we prepare technical drawings and production plans to ensure the final equipment matches the application requirements.
The cabinet frame is manufactured with precise dimensions to ensure proper installation of internal components.
The structure must provide enough mechanical strength while maintaining correct spacing between electrical sections. This helps improve equipment reliability during long-term operation.
Our technicians install vacuum circuit breakers, busbars, protection devices, control components, and other electrical parts according to approved technical drawings.
Each connection is carefully checked because electrical performance depends on accurate assembly and reliable contact points.
Before delivery, every KYN28A-12 Air Insulated Switch Cabinet completes factory testing procedures.
Mechanical operation inspection
Electrical connection testing
Insulation performance checking
Protection function verification
Appearance quality inspection
These inspections help ensure that customers receive equipment ready for installation and operation.
Medium voltage equipment requires careful transportation protection. We use professional packaging methods to protect products from moisture, vibration, and impact during shipment.
According to customer location and project requirements, we support sea transportation, land transportation, and combined logistics solutions.
Jihui Electric Group specializes in 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, and vacuum circuit breakers.
With professional manufacturing experience, we provide complete electrical solutions for power companies, engineering contractors, industrial users, and infrastructure developers.
Quality control is an important part of our production process. We operate according to ISO9001 quality management standards, ISO14001 environmental management standards, and ISO45001 occupational health and safety management standards.
From raw material selection to final inspection, we focus on product consistency and reliability.
Different projects require different solutions. Some customers need standard KYN28A-12 switch cabinets, while others require customized designs.
Our engineering team can support customers with technical communication, product configuration, and project-based solutions.
For international customers, we provide support throughout the entire cooperation process, including technical confirmation, production arrangement, inspection, packaging, and shipment.
Our goal is to make purchasing medium voltage equipment easier and more reliable for global customers.
| Comparison Item | Standard Solution | Customized Solution |
|---|---|---|
| Cabinet Configuration | Standard panel arrangement | Designed according to project requirements |
| Current Selection | Common rated current options | 630A-2500A customized selection |
| Breaker Configuration | Standard vacuum breaker | Customized protection and control functions |
| Application | General power distribution | Specific industrial and substation projects |
| Technical Support | Standard documentation | Project-based engineering support |
Source: Comparison data is based on Jihui Electric Group product configuration experience and customer project requirements.
It is mainly used for 10kV medium voltage power distribution systems, including substations, industrial facilities, renewable energy projects, and infrastructure applications.
The removable design makes maintenance easier. Operators can inspect, test, and replace the circuit breaker unit more conveniently, helping reduce maintenance time.
The KYN28A-12 switch cabinet supports different current requirements, including 630A, 1250A, 1600A, 2000A, and 2500A configurations.
Yes. We provide customized medium voltage switchgear solutions according to customer project requirements, including cabinet arrangement, functional configuration, and technical specifications.
We follow strict production procedures and quality inspections. Our ISO9001, ISO14001, and ISO45001 management systems support stable manufacturing and reliable product delivery.
Choosing reliable power distribution equipment is an important step for every electrical project. At Jihui Electric Group, we focus on providing safe, practical, and efficient medium voltage solutions for customers around the world.
Our KYN28A-12 10kV Medium Voltage Air Insulated Switch Cabinet with 630A-2500A Removable Vacuum Circuit Breaker Panel provides reliable performance for substations, industrial facilities, and power distribution systems.
With professional manufacturing capability, strict quality control, and customized engineering support, we are ready to help customers build safer and more stable electrical networks.
Contact Jihui Electric Group today to discuss your KYN28A-12 switch cabinet requirements and receive a suitable power distribution solution.
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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