Product Description
Switchgear is an indispensable element in electrical systems, meticulously engineered to expertly manage the intricate processes of opening, closing, controlling, and safeguarding electrical equipment throughout power generation, transmission, distribution, and conversion phases. With its primary mission being to ensure smooth and reliable operations, it offers unparalleled protection across a multitude of power systems, making it a cornerstone of electrical infrastructure.
Structure
High voltage switchgear boasts a sophisticated structure, featuring carefully designed compartments such as the busbar room, circuit breaker room, secondary control room (often referred to as the instrument room), and feeder room. Each compartment is securely isolated by durable steel partitions. For example, in the KYN28A-12 model, the instrument room is strategically placed at the top, the circuit breaker room occupies a central position, and the cable room is situated at the bottom, ensuring organized and efficient functionality.
Low voltage switchgear is classified based on the installation method of components into fixed and drawer types. The drawer type switchgear is characterized by a sturdy fixed cabinet body, complemented by a dynamic movable device section, offering flexibility and ease of maintenance.
Internal Components
The internal components are the heartbeat of the switchgear, comprising essential elements such as circuit breakers, isolating switches, load switches, operating mechanisms, transformers, and an array of advanced protective devices. Together, these components harmonize to ensure peak operational performance and unmatched safety in every application.
Classification
Switchgear classification is multi-faceted: based on the installation method of circuit breakers, they are divided into movable and fixed types. Cabinet structures can be open, metal enclosed, or metal enclosed armored. Voltage levels categorize them as high-voltage (above AC1000V) or low-voltage (below AC1000V), and by voltage waveform, they can be AC or DC. Moreover, they perform specialized functions in forms like incoming cabinets, outgoing cabinets, metering cabinets, and compensation cabinets, tailored to meet diverse operational needs.
Effect
Control Function: Skillfully orchestrates circuit connectivity, empowering the start and stop operations of power equipment, thus ensuring precise control, enhanced efficiency, and optimal performance in every scenario.
Protection Function: Delivers formidable protection by swiftly and automatically disconnecting the circuit during overloads, short circuits, or leakage incidents, effectively safeguarding both equipment and personnel from potential harm, elevating safety to new heights.
Application Location
Perfectly suited for a wide array of environments, including power plants, substations, petrochemical facilities, metallurgical and steel rolling operations, light industry textiles, manufacturing sectors, mining enterprises, residential complexes, and high-rise buildings. This ensures dependable performance and seamless operations across diverse settings.
Product Parameters
Installeo power |
100-2000KW |
The number of inverter input channels |
1 way-5way(The above suggested matching AC combiner box) |
Grid-connected output channels |
1way |
Grid connection requirements |
Three-phase grid-connected cabinet |
Grid-connected voltage |
AC:380V-AC:500V |
Protective function: |
|
Short circuit protection |
Have |
Overload protection |
Have |
Lightning protection |
Have (nominal current: In:20KA,lmax: 40KA, Up≤4KV) |
Isolation Protection (Visual Breakpoints) |
Have(knife switch/disconnector) |
Optional function |
1. Online power quality monitor |
2. Anti-islanding protection device |
3.Accident Degradation Column Device |
Panel manual openingand closing |
have |
Overvoltage and undervoltage protection |
have |
Automatic reclosing |
have |
Grid-connected switch |
|
Plastic case reclosing100-800A (optional) |
1. When the power grid is powered off or the bias voltage is greater than 20%. it wilautomatically trip (0~10s delayed tripping time is adjustable)
2. When the power grid returns to normal, it will automatically close
3. Manual operation and automatic operation can be switched
4.Phase loss protection, zero break protection
5. Check for pressure closing |
|
|
Universal frame circuitbreaker 200~4000A(optional) |
|
Applicable environment. |
|
Temperature, humidity |
Working temperature: -25 to +60 'c Storage temperature. -40 to +70 'C, humidity. 0-90% nocondensation, no corrosive gas place (if any, please specify) |
Use altitude |
|
Salt spray resistant |
Standard salt spray test 336 hours |
General parameters. |
|
Box material |
Cold-rolled plate spraying, stainless steel |
Use place |
Indoor type (can be customized outdoor type) |
Type of cabinet |
Power distribution cabinet, metering cabinet, transformer cabinet, isolation switch cabinet |
Main product

Company Profile

Zhejiang ChaoTai Complete Equipment Co., Ltd. stands at the forefront of high-tech innovation, excelling in electrical integration. With a passionate and forward-thinking team dedicated to research and development, production, and service, we proudly bring over 15 years of profound industry expertise to our valued clients.
Our extensive portfolio showcases a remarkable suite of state-of-the-art products, including high-voltage solid-state soft starters, capacitor cabinets, sophisticated high and low voltage switchgear, cutting-edge gas-insulated switchgear, and comprehensive substations. These products are designed to meet the dynamic needs of diverse industries, such as energy, chemical, metal smelting, electric power grids, and industrial manufacturing. They are also essential in educational institutions, the medical and pharmaceutical sectors, municipal commerce, water conservancy, hydropower, road traffic management, as well as in commercial and residential infrastructure.
At the heart of our operations is an unwavering commitment to 'smart manufacturing,' driven by a relentless pursuit of technological advancement. By attracting and nurturing top-tier technical talent, we bolster our core competitive edge, delivering exceptional value to our clients. Our vision is to establish the most esteemed brand in the industry. From our modest beginnings, we've achieved noteworthy milestones, guided by a philosophy of constant innovation. Our business strategy is rooted in enduring quality, agility in market adaptation, growth through reputation, and efficiency in management. We are dedicated to 'technology leadership, standardized management, superior quality, and customer satisfaction,' all vital for enhancing our competitiveness in China's power transmission and distribution landscape. Integrity, quality, and outstanding service form our foundation, ensuring customer satisfaction. We pursue excellence, innovation, and brand loyalty with unwavering dedication. Your trust propels us forward, and we extend our deepest gratitude to both new and loyal customers for their continuous support. At Senhang Technology, we are eager to partner with you in creating a brighter, more prosperous future together.
Our Advantages
Certifications
After Sales Service

FAQ
Q1. Are you a factory or trading company?
A.We are a factory.
Q2. Where is your factory located? How can I visit there?
A. Our factory is located in Wenzhou City, Zhejiang Province, China. You can fly to Longwan airport directly. All our clients,from home or abroad, are warmly welcome to visit us!
Q3. What's the payment term?
A. We accept TT. 30% deposit and 70% before shipment, Western Union, L/C At Sight is ok! We'll l show you the photos of the products and packages before you pay the balance.
Q4. Tell me the standard of package? What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons, If vou have leaallyl registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q5. Would you accept to use our logo?
A. If you have good quantity,it absolute no problem to do OEM.
Q6. How about the transport?
A. If the number of aoods is small we usually use TNT.DHL.FEDEX.EMS and some express voull offered. If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
Q7. What is your Production lead time /delivery time?
A: Generally, it will take 25 to 30 days after receivina vour advance payment.
The specificl delivery time depends on the items and the quantity of your order. Silicone rubber's reqular product is 1,000/ week, Porcelain's need 2-3 weeks about 1000 pcs.
Q8. How do you make our business long-term and good relationship?
A:l. We keep aood auality and competitive price to ensure our customers benefit:
A: 2. We respect every customer as our friend and we sincerely do business and make friendsl with them, no matter where they come from.
A: 3.Most goods we have the type report according the IEC STANDARD
Q9. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the courier cost.
Q10. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q11. What is your terms of delivery?
A: EXW, FOB, CFR, CIF.
Q12.What certificates do you have?
A:ISO9001,OHSAS18001,ISO14001 certificate and Type test report of product.