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 |
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. Among our core products, the KYN28A-12 10kV Customizable Medium Voltage Switchgear is designed for power grid projects, industrial power distribution systems, renewable energy facilities, and large-scale infrastructure applications.
With years of experience in the electrical equipment industry, we understand that every power project has different requirements. Some customers need stable power distribution for factories, some need safe switching equipment for substations, while others require customized solutions with PT panels, metering functions, and overvoltage protection. That is why we developed KYN28A-12 switchgear with flexible configuration options.
The KYN28A-12 10kV Medium Voltage Switchgear is an indoor metal-clad withdrawable switchgear designed for 10kV power systems. It integrates circuit protection, electrical isolation, measurement, and control functions into one compact solution. Depending on project requirements, we can provide configurations including overvoltage suppression panels, PT panels, metering panels, and other customized functional units.
Our goal is simple: provide customers with safe, stable, and efficient medium voltage power distribution equipment that can operate reliably for years in different working environments.
As a professional manufacturer located in Yueqing Economic Development Zone, China, Jihui Electric Group has established complete production, testing, and quality control systems. We are certified with ISO9001, ISO14001, and ISO45001, ensuring every product follows strict manufacturing standards from design to delivery.
The main function of KYN28A-12 10kV Switchgear is to control, protect, and distribute electrical energy safely. In a typical power distribution system, electricity from the transformer or power source enters the switchgear first. The internal circuit breaker then controls the connection and disconnection of the electrical circuit according to operating requirements.
Inside the switchgear cabinet, different functional components work together. The busbar system transfers electrical power between different sections. The Vacuum circuit breaker provides reliable switching operation. Protection devices monitor abnormal conditions such as short circuits, overloads, and electrical faults.
For projects requiring accurate measurement, the PT Metering Panel provides voltage measurement and monitoring functions. The potential transformer reduces high voltage signals into measurable values for protection relays, meters, and control systems.
The Overvoltage Suppression Panel helps reduce the impact of sudden voltage increases caused by lightning strikes, switching operations, or system disturbances. By controlling excessive voltage stress, it improves equipment safety and extends the service life of electrical components.
The withdrawable design of KYN28A-12 switchgear allows easier maintenance. Operators can move the circuit breaker unit between working and testing positions without completely removing the equipment, which improves operation efficiency and reduces maintenance time.
Different power projects have different technical requirements. Our KYN28A-12 switchgear supports customized designs according to customer specifications, including different panel combinations, protection functions, measurement requirements, and installation conditions.
Customers can select suitable configurations based on their application, such as:
Incoming and outgoing feeder panels
PT and metering panels
Overvoltage suppression panels
Transformer protection panels
Bus sectional panels
Customized control and protection systems
Safety is one of the most important factors in medium voltage systems. KYN28A-12 adopts a metal-clad structure that separates different functional compartments, including the busbar compartment, circuit breaker compartment, cable compartment, and control compartment.
This structure improves operational safety because electrical components are arranged separately. Even during abnormal conditions, the design helps limit the influence between different sections.
The vacuum circuit breaker inside KYN28A-12 switchgear provides fast and reliable switching performance. Compared with traditional switching methods, vacuum interruption technology offers excellent insulation performance, low maintenance requirements, and long mechanical service life.
This makes the equipment suitable for applications requiring frequent operation, including industrial facilities, power plants, renewable energy projects, and distribution networks.
Power distribution equipment often operates under challenging conditions. Temperature changes, dust, humidity, and continuous electrical loads can affect equipment performance.
Our KYN28A-12 Medium Voltage Switchgear is manufactured with high-quality materials and strict production control to ensure stable operation in indoor power distribution environments.
When selecting medium voltage switchgear, customers usually care about safety, reliability, maintenance cost, and long-term operation. Based on these requirements, we focus on improving several key areas.
| Item | KYN28A-12 Switchgear Features | Customer Benefits |
|---|---|---|
| Rated Voltage | 10kV class medium voltage system | Suitable for common industrial and power grid applications |
| Structure | Metal-clad withdrawable design | Safer operation and easier maintenance |
| Protection | Supports overvoltage suppression and protection functions | Improves system reliability |
| Measurement | Optional PT and metering panel configuration | Accurate power monitoring and management |
| Customization | Flexible functional unit combination | Matches different project requirements |
Source: Technical data is based on Jihui Electric Group product design specifications and standard medium voltage switchgear engineering requirements.
Electrical safety is always our first consideration. During production, we focus on insulation distance, mechanical strength, protection structure, and operational safety. Each cabinet undergoes inspection and testing before shipment.
For power companies, engineering contractors, and industrial users, reliable switchgear is not only equipment but also an important part of the entire power system safety chain.
Modern industries require efficient energy management. The KYN28A-12 switchgear helps improve power distribution efficiency through reliable switching control, accurate measurement, and optimized system protection.
It can be integrated into different electrical networks, supporting stable operation for factories, commercial buildings, renewable energy projects, and infrastructure facilities.
| Parameter | Specification |
|---|---|
| Product Type | KYN28A-12 Indoor Metal-Clad Withdrawable Switchgear |
| Rated Voltage | 12kV Maximum System Voltage |
| Application Voltage | 10kV Power Distribution System |
| Installation Type | Indoor Installation |
| Main Functions | Power Distribution, Protection, Measurement, Control |
| Optional Panels | PT Panel, Metering Panel, Overvoltage Suppression Panel |
| Application Areas | Power Grid, Industrial Plants, Renewable Energy, Infrastructure |
Source: Product information is prepared according to Jihui Electric Group technical standards and medium voltage switchgear application requirements.
During our years of supplying power distribution equipment, we have found that different industries have different expectations for medium voltage switchgear. Some projects focus on continuous operation, some focus on safety protection, and others require flexible expansion for future development. The KYN28A-12 10kV Customizable Medium Voltage Switchgear is designed to meet these changing requirements.
Power grid projects require equipment with high reliability because any unexpected power interruption can affect thousands of users. Our KYN28A-12 Power Grid Project Switchgear provides stable switching, protection, and measurement functions for substations and distribution networks.
With PT metering panel options and protection configurations, the switchgear can support accurate voltage monitoring and improve the operation management of power systems. It is suitable for urban power networks, industrial distribution stations, and regional energy projects.
The rapid development of solar power, wind energy, and other renewable energy projects has increased the demand for reliable medium voltage equipment. Renewable energy systems need stable connection between power generation units and the grid.
KYN28A-12 medium voltage switchgear can be used in renewable energy collection systems, supporting safe power transmission and protection. Customized configurations allow the equipment to adapt to different project sizes and technical requirements.
Factories usually require continuous power supply for production lines, automated equipment, and industrial control systems. Power failures may cause production delays and financial losses.
Our 10kV Medium Voltage Switchgear provides reliable power distribution and protection for manufacturing industries such as automotive production, machinery manufacturing, chemical plants, and metal processing facilities.
Rail transit systems, airports, ports, and large public facilities require stable electrical systems. KYN28A-12 switchgear supports safe power distribution in these complex environments.
Its compact structure, reliable protection functions, and flexible configuration make it suitable for projects where electrical safety and long service life are important.
Modern commercial buildings need efficient electrical management systems for lighting, elevators, air conditioning, and other facilities. Reliable medium voltage distribution equipment helps maintain stable operation.
KYN28A-12 switchgear can be installed in commercial complexes, office buildings, industrial parks, and urban infrastructure projects to provide dependable electrical support.
At Jihui Electric Group, we believe that product quality comes from every production step. From raw material selection to final inspection, we control each stage carefully to ensure every KYN28A-12 switchgear delivered to customers meets project requirements.
Before production begins, our engineering team communicates with customers to confirm technical details, including system voltage, panel arrangement, protection requirements, installation conditions, and application environment.
For customized KYN28A-12 10kV Switchgear, we prepare detailed drawings and technical documents to ensure the final product matches the customer's project requirements.
The cabinet frame, electrical components, insulation materials, and mechanical parts are selected according to strict requirements. Quality materials help improve mechanical strength, electrical insulation performance, and product durability.
During assembly, our technicians install the cabinet structure, busbar system, circuit breaker unit, protection devices, and optional PT Metering Panel according to engineering drawings.
Every connection point is carefully checked because small details can influence the long-term performance of medium voltage equipment.
Before shipment, every KYN28A-12 switchgear unit undergoes factory testing. Testing includes electrical performance inspection, mechanical operation testing, insulation checking, and functional verification.
These procedures help ensure that customers receive equipment ready for installation and operation.
Because medium voltage switchgear is precision electrical equipment, transportation protection is important. We use professional packaging methods including moisture protection, shock protection, and reinforced external protection.
According to customer location and project requirements, we support sea transportation, land transportation, and combined logistics solutions.
Choosing a medium voltage switchgear supplier is not only about purchasing equipment. It is about finding a long-term partner who understands electrical projects, delivery requirements, and after-sales support.
Jihui Electric Group specializes in medium and low voltage power transmission and distribution equipment up to 35kV. Our product range covers Cable accessories, Cable distribution boxes, ring main units, Prefabricated Substations, combination transformers, SF6 load switches, and vacuum circuit breakers.
With professional production experience, we provide complete solutions for power companies, engineering contractors, equipment integrators, and industrial customers worldwide.
Quality control is an important part of our daily production. We operate according to ISO9001 quality management standards, ISO14001 environmental management standards, and ISO45001 occupational health and safety standards.
From production planning to final inspection, we focus on consistency and reliability to ensure stable product quality.
Every project has different technical conditions. Our engineering team can provide customized solutions based on voltage level, installation environment, protection requirements, and customer specifications.
Whether customers need a standard KYN28A-12 10kV Medium Voltage Switchgear solution or a customized configuration with PT and metering functions, we provide professional technical support.
We understand international project requirements, including technical communication, packaging standards, shipping arrangements, and documentation support.
Our goal is to make cooperation easier for overseas customers by providing complete service from inquiry confirmation to product delivery.
| Comparison Item | Standard KYN28A-12 Switchgear | Customized KYN28A-12 Solution |
|---|---|---|
| Configuration | Standard functional units | Customized panels and functions |
| Application | General 10kV distribution systems | Specific power grid and industrial projects |
| Panel Options | Basic switching functions | PT, metering, overvoltage suppression options |
| Engineering Support | Standard technical documents | Project-based design support |
| Delivery Method | Standard production schedule | Based on project quantity and requirements |
Source: Comparison data is based on Jihui Electric Group product configuration experience and customized project requirements.
KYN28A-12 switchgear is mainly used for 10kV power distribution systems. It provides electrical control, protection, isolation, and measurement functions for power grid projects, industrial facilities, renewable energy systems, and infrastructure applications.
Yes. We provide customized solutions according to project requirements. Customers can select different panel configurations, including PT Metering Panel, Overvoltage Suppression Panel, feeder panels, and protection functions.
The withdrawable structure improves maintenance convenience. Operators can move the circuit breaker unit between working and testing positions, reducing maintenance time and improving operational safety.
KYN28A-12 switchgear is widely used in power utilities, renewable energy, industrial manufacturing, rail transit, commercial buildings, mining, petrochemical industries, and infrastructure projects.
We follow strict manufacturing and inspection procedures based on ISO9001, ISO14001, and ISO45001 management systems. Each product undergoes production inspection and performance testing before delivery.
A reliable power distribution system starts with reliable equipment. At Jihui Electric Group, we continue to improve our medium voltage power distribution solutions to help customers build safer and more efficient electrical networks.
Our KYN28A-12 10kV Customizable Medium Voltage Switchgear with Overvoltage Suppression, PT, and Metering Panel functions provides a practical solution for modern power grid projects.
Whether you are an electrical contractor, power company, system integrator, or industrial user, our team can provide suitable technical support and customized switchgear solutions according to your project needs.
Contact Jihui Electric Group today to discuss your 10kV Medium Voltage Switchgear requirements and receive a professional project 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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