I. Overview:
KYN61-40.5 (Z) armored movable 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 in power plants, substations, and distribution rooms of industrial and mining enterprises, and for 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 above 1kV and below 50kV"
II. Terms of Use
--Surrounding air temperature: maximum temperature+40 ° C. Minimum temperature -10 ° C;
--Altitude: ≤ 1000m;
--Relative humidity around: daily average ≤ 95%, monthly average ≤ 90%;
--Surrounding air: Not suitable for places with corrosion, severe pollution, flammable gases, and severe vibrations;
--If an earthquake occurs, the intensity of the earthquake cannot exceed magnitude 8.
III. Structural characteristics
The switchgear structure is designed according to the standards of GB3906-2006 and IEC298 for armored metal enclosed switchgear, and is composed of two parts: the cabinet body and the withdrawable part (handcart). The cabinet structure is assembled and bolted together to form a combination. The interior of the switch cabinet is divided into a circuit breaker room, a main busbar room, a cable room, and a relay instrument room using metal partitions. The protection level of the shell reaches IP3X, and the protection level between each compartment is IP2X. All metal structural components are reliably grounded, and there are independent pressure release channels for exhaust between the compartments of the main circuit system.
Handcarts can be divided into circuit breaker handcarts, voltage transformer handcarts, metering handcarts, isolation handcarts, etc. according to their purposes. All types of handcarts have the same external dimensions, and handcarts with the same purpose have good interchangeability; The handcart has a testing/isolation position and a working position inside the cabinet, and each position is equipped with an interlocking device to ensure that the handcart cannot move freely when it is in the above two positions.
| Model | Size |
| KYN61-40.5 | 140*220*260cm |
KYN61-40.5 Armored removable AC metal enclosed switchgear for Reliable High Voltage Power Distribution
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. With years of experience in the electrical industry, we provide reliable power solutions for utilities, industrial plants, renewable energy projects, infrastructure construction, and commercial facilities around the world.
Our KYN61-40.5 Armored removable AC metal enclosed switchgear is designed for high voltage power distribution systems with a rated voltage of 40.5kV. It is an advanced indoor metal enclosed switchgear solution that combines safety protection, reliable electrical performance, and convenient maintenance features. The product is widely used in substations, power plants, industrial distribution rooms, and large-scale energy projects where stable electricity supply is essential.
We understand that electrical equipment is not only a product but also an important part of a customer's long-term operation system. A failure in power distribution equipment may affect production, increase maintenance costs, and create safety risks. Therefore, when we develop KYN61-40.5 switchgear, we focus on practical needs: safe operation, easy maintenance, strong protection, and long service life.
Through strict manufacturing processes, professional testing procedures, and continuous improvement of production technology, we provide customers with dependable 40.5kV high voltage switchgear solutions that meet different project requirements.
KYN61-40.5 Armored removable AC metal enclosed switchgear is a type of high voltage electrical distribution equipment designed for controlling, protecting, and distributing AC power in systems up to 40.5kV. It belongs to the metal clad switchgear category, where important electrical components are separated into independent compartments with metal barriers.
Compared with traditional fixed switchgear, the KYN61-40.5 adopts a removable structure. The circuit breaker trolley can be moved between different positions, including working position, test position, and isolated position. This design allows operators to perform inspection and maintenance more efficiently.
The main structure usually includes:
Busbar compartment for power transmission connection
Circuit breaker compartment for switching and protection
Cable compartment for incoming and outgoing cable connections
Control compartment for measurement, protection, and monitoring devices
Each compartment works together to provide safe and stable operation. The armored metal enclosure improves mechanical strength and protects internal components from external impact.
Our KYN61-40.5 high voltage switchgear is developed according to modern power distribution requirements. It is suitable for customers who need reliable electrical equipment with flexible maintenance and strong safety performance.
The working principle of KYN61-40.5 switchgear is based on controlling the flow of electrical energy while protecting the power system from abnormal conditions.
When electrical power enters the switchgear, the current passes through the incoming cable section and reaches the main busbar system. The Vacuum circuit breaker inside the cabinet controls whether the electrical circuit is connected or disconnected.
During normal operation, the circuit breaker allows electricity to flow smoothly to connected equipment. When problems such as short circuits, overloads, or electrical faults occur, the protection system detects the abnormal condition and sends a signal to open the circuit breaker.
Once the breaker opens, the fault current is interrupted, protecting transformers, motors, cables, and other important electrical equipment from damage.
The metal enclosed structure plays an important role in safety. Internal components are separated by metal compartments, reducing the possibility of accidental contact with live parts. This design provides additional protection for operators during operation and maintenance.
The withdrawable design is another important advantage. Instead of removing the entire cabinet during maintenance, technicians can move the breaker trolley out of the working position. This reduces maintenance time and improves the availability of the power system.
Safety starts with a strong cabinet structure. Our KYN61-40.5 switchgear uses a metal enclosed design to provide reliable mechanical protection for internal electrical components.
The armored structure improves the overall strength of the equipment and helps it operate reliably in demanding industrial environments. It also provides better protection during transportation, installation, and daily operation.
One of the biggest advantages of our withdrawable metal clad switchgear is the removable circuit breaker system.
The circuit breaker trolley can be moved between different operating positions. This allows maintenance engineers to complete inspections and replacements more conveniently.
For large industrial projects, reducing maintenance time is very important. A flexible withdrawable structure helps customers improve operation efficiency and reduce unnecessary downtime.
High voltage equipment requires excellent insulation performance. Our KYN61-40.5 switchgear is designed with suitable insulation distances and reliable insulation materials to ensure stable operation.
Good insulation performance helps reduce risks caused by electrical discharge and improves the service life of the equipment.
We design our switchgear with operator safety in mind. The internal compartment structure separates high voltage areas from control sections.
The equipment can be equipped with protection relays, measurement devices, and monitoring systems according to project requirements. These functions help users quickly identify problems and maintain stable operation.
Every power distribution project has different requirements. Some customers need equipment for industrial plants, while others require solutions for substations or renewable energy systems.
We can customize KYN61-40.5 Armored removable AC metal enclosed switchgear according to technical requirements, including rated current, protection configuration, cable arrangement, and installation conditions.
When selecting high voltage switchgear, customers usually care about safety, reliability, maintenance convenience, and long-term operating cost. Our product design focuses on these practical factors.
| Key Factor | KYN61-40.5 Switchgear Advantage | Customer Benefit |
|---|---|---|
| Safety Protection | Metal compartment structure with separated electrical sections | Improves operator safety and reduces operation risks |
| Maintenance | Withdrawable circuit breaker design | Faster inspection and easier component replacement |
| Application Range | Suitable for 40.5kV power distribution systems | Supports utilities, industries, and infrastructure projects |
| Customization | Flexible configuration options | Matches different project requirements |
Source: Technical information is based on IEC 62271-200 guidelines for AC metal enclosed switchgear and common engineering practices for medium/high voltage distribution systems.
Electricity is the foundation of modern industry. From factories and transportation systems to renewable energy projects, stable power supply directly affects daily operation.
High voltage switchgear works as a key protection point in the power network. If the equipment cannot operate properly, problems may spread to transformers, cables, motors, and other electrical systems.
For this reason, we do not only focus on manufacturing a cabinet. We focus on creating a complete power protection solution. From material selection and production control to factory testing and delivery service, every step is managed carefully.
Our goal is simple: provide customers with safe, reliable, and efficient KYN61-40.5 Armored removable AC metal enclosed switchgear that supports long-term operation.
At Jihui Electric, we design our products according to real application requirements. Different industries have different expectations for High Voltage Power Distribution Equipment. Some customers need continuous operation in factories, some need stable grid connection for renewable energy projects, and others require safe electrical systems for infrastructure facilities.
Our KYN61-40.5 Armored removable AC metal enclosed switchgear provides reliable performance for various high voltage power distribution applications. With its strong protection structure, flexible configuration, and convenient maintenance design, it has become a practical solution for many industries.
Power companies require equipment that can operate safely for many years with minimum maintenance. In substations, switchgear is responsible for controlling power transmission, protecting electrical equipment, and improving system reliability.
Our 40.5kV high voltage switchgear is suitable for power distribution stations, transformer substations, and electrical network upgrades. The armored metal enclosure helps protect internal components, while the withdrawable structure improves maintenance efficiency.
For utility projects, reliable operation is not only about equipment performance. It is also about reducing unexpected shutdowns and ensuring stable electricity supply for end users.
The rapid development of solar power, wind energy, and energy storage projects has created higher requirements for medium and high voltage electrical equipment.
Renewable energy systems often work under changing power conditions. Stable switching and protection equipment is necessary to connect generated electricity safely to the grid.
Our KYN61-40.5 switchgear can be applied in renewable energy distribution systems to provide reliable circuit control and protection. It helps improve the safety and efficiency of clean energy projects.
Manufacturing plants depend on stable electricity to maintain production efficiency. Industries such as automotive manufacturing, machinery production, steel processing, chemical plants, and electronic factories require reliable power distribution systems.
Unexpected electrical failures may stop production lines and increase operating costs. Therefore, industrial customers need high voltage switchgear with strong protection capability and easy maintenance features.
Our KYN61-40.5 Armored removable AC metal enclosed switchgear provides a stable power control solution for industrial environments where safety and continuous operation are important.
Mining and petrochemical industries usually have strict requirements for electrical equipment. Power systems must support heavy machinery, pumps, motors, and production equipment under demanding conditions.
The strong mechanical structure and reliable insulation design of our switchgear make it suitable for industrial applications requiring durable electrical equipment.
Modern cities require reliable electricity for transportation systems, public facilities, commercial buildings, and municipal projects.
Rail transit systems, airports, data centers, and large buildings need safe power distribution equipment to maintain continuous operation.
Our indoor metal enclosed switchgear provides a compact and reliable solution for these applications.
We believe reliable products come from careful manufacturing. At Jihui Electric, we control every production step from engineering design to final inspection.
Our manufacturing process combines professional technology, experienced workers, and strict quality management to ensure every KYN61-40.5 switchgear unit meets customer requirements.
Before production, our technical team reviews customer requirements, including voltage level, rated current, installation environment, protection requirements, and project standards.
We communicate with customers to confirm technical details and provide suitable solutions. This helps avoid problems during installation and operation.
The cabinet frame is the foundation of the switchgear. We use suitable metal materials and precision processing methods to ensure structural strength and dimensional accuracy.
The manufacturing process includes cutting, bending, welding, surface treatment, and inspection. Each step affects the final quality of the equipment.
After cabinet production, our technicians install important electrical components, including:
Vacuum circuit breakers
Main busbars
Current transformers
Voltage transformers
Protection relays
Control and monitoring devices
All components are installed according to engineering drawings and technical requirements.
Before delivery, every KYN61-40.5 unit completes factory testing. We inspect electrical performance, insulation condition, mechanical operation, and protection functions.
These tests help ensure that the equipment can operate safely after installation at the customer site.
For international customers, transportation safety is very important. We use professional packaging methods including moisture protection, shock prevention, and reinforced fixing.
According to product size and destination, we select suitable transportation methods such as sea freight, land transportation, or combined logistics solutions.
Different switchgear structures have different advantages. The following comparison helps customers understand why withdrawable metal enclosed switchgear is widely used in modern power systems.
| Comparison Item | KYN61-40.5 Withdrawable Metal Enclosed Switchgear | Fixed Metal Enclosed Switchgear | Open Type Switchgear |
|---|---|---|---|
| Safety Level | High protection with metal compartment separation | Good protection depending on design | Lower protection against accidental contact |
| Maintenance | Breaker trolley can be removed easily | Requires more internal maintenance work | Maintenance space requirement is higher |
| Application | High voltage distribution, substations, industries | General power distribution systems | Traditional electrical installations |
| Operation Flexibility | Working, test, and isolated positions available | Limited movement options | Lower flexibility |
Source: Comparison based on IEC 62271 series standards and common electrical engineering application practices.
At Jihui Electric, quality control is part of every stage of production. We understand that electrical equipment affects the safety of power systems, so we carefully manage materials, production processes, and final inspections.
Our company has obtained internationally recognized management certifications:
ISO9001 Quality Management System Certification
ISO14001 Environmental Management System Certification
ISO45001 Occupational Health and Safety Management System Certification
These certifications demonstrate our commitment to stable manufacturing, environmental responsibility, and safe production practices.
Choosing a switchgear supplier is not only about purchasing equipment. It is about finding a partner who understands electrical projects and provides long-term support.
Jihui Electric 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, transformers, SF6 load switches, and vacuum circuit breakers.
With professional manufacturing experience, we understand the practical challenges faced by electrical engineers, contractors, and project owners.
Every project has different requirements. We support customized solutions based on:
Voltage and current requirements
Installation environment
Protection functions
Project standards
Transportation requirements
Our technical team works with customers to provide suitable switchgear solutions.
From pre-sales communication to production, delivery, and after-sales support, we provide professional service throughout the cooperation process.
For export projects, we assist customers with technical documents, product information, packaging arrangements, and shipping coordination.
KYN61-40.5 Armored removable AC metal enclosed switchgear is designed for electrical systems with a rated voltage of 40.5kV. It is mainly used for high voltage power distribution applications.
The main advantage is easier maintenance. The circuit breaker trolley can be moved or removed without replacing the entire cabinet, which helps reduce maintenance time and improve system availability.
It can be used in substations, power plants, renewable energy projects, industrial factories, mining facilities, transportation systems, and infrastructure projects.
Yes. We can customize the equipment according to project requirements, including electrical parameters, configuration, protection functions, and installation conditions.
We use strict quality control procedures, including material inspection, production monitoring, electrical testing, and final inspection before shipment.
As power systems continue to develop, customers need electrical equipment that provides safety, reliability, and easy maintenance. Our KYN61-40.5 Armored removable AC metal enclosed switchgear is designed to meet these practical needs.
With professional manufacturing capability, strict quality management, and complete service support, Jihui Electric continues to provide reliable power distribution solutions for customers worldwide.
Whether for utility networks, industrial facilities, renewable energy projects, or infrastructure applications, we are ready to provide suitable 40.5kV high voltage switchgear and medium voltage power distribution equipment solutions based on your project requirements.
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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