Product Description
Switchgear is a pivotal piece of electrical equipment, meticulously designed for the critical operations of opening, closing, controlling, and safeguarding electrical circuits. It plays an indispensable role throughout various stages of power systems, including the generation, transmission, distribution, and energy conversion processes.
Structure
High voltage switchgear is ingeniously structured to include dedicated compartments such as the busbar room, circuit breaker room, secondary control room (also known as the instrument room), and feeder room. Each room is expertly isolated using robust steel plates, ensuring optimal safety and efficiency. An exemplary model is the KYN28A-12, which features an upper section designated as the instrument room, a central section housing the circuit breaker room, and a lower section for the cable room.
Low voltage switchgear: Distinguished by its installation method, low voltage switchgear can be categorized into fixed and drawer types. The drawer type boasts a stable cabinet body paired with a dynamic, movable device part, offering unparalleled convenience and adaptability.
Internal Components
The internal architecture of the switchgear is equipped with essential components including circuit breakers, isolating switches, load switches, operational mechanisms, transformers, and an array of protective devices, all engineered for high performance and reliability.
Classification
Switchgear is meticulously classified to suit diverse operational needs: by the installation method of the circuit breaker into movable and fixed types; by cabinet structure into open, metal enclosed, and metal enclosed armored types. It is further divided by voltage levels into high-voltage (above AC1000V) and low-voltage (below AC1000V), and by voltage waveform into AC and DC switchgear. Moreover, it is categorized by purpose into incoming cabinets, outgoing cabinets, metering cabinets, and compensation cabinets.
Effect
Control Function: The switchgear facilitates precise connection and disconnection of circuits, enabling efficient start-stop control of power equipment, thereby optimizing operational management.
Protection Function: In the event of circuit anomalies such as overload, short circuit, or leakage, the switchgear automatically interrupts the circuit, ensuring the safety of both equipment and personnel.
Application Location
The versatility of switchgear makes it ideally suited for a wide spectrum of environments including power plants, substations, petrochemicals, metallurgical and steel rolling facilities, light industry textiles, various factories and mines, residential areas, as well as high-rise buildings, ensuring reliable power management 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

Welcome to Zhejiang ChaoTai Complete Equipment Co., Ltd., a beacon of innovation in the realm of electrical integration. As a high-tech enterprise, we pride ourselves on our exceptional R&D, production, and service teams, boasting over 15 years of rich industry experience. Our commitment to excellence positions us as leaders in providing state-of-the-art electrical solutions.
Our extensive product range includes high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, innovative gas-insulated switchgear, and robust substations. These cutting-edge products find extensive application across diverse sectors such as energy, chemical industries, metal smelting, power grids, industrial manufacturing, academia, medical and pharmaceutical fields, municipal commerce, water conservancy and hydropower, road traffic, as well as commercial and residential areas. Our dedication to quality ensures that our products not only meet but exceed industry standards, delivering unparalleled reliability and performance.
Driven by an ethos of technological innovation and our 'smart manufacturing' philosophy, we at Zhejiang ChaoTai are relentless in our pursuit of excellence. By attracting top-tier technical talent, we significantly bolster our core competitiveness, delivering unmatched value to our customers. Our journey from inception to industry leadership is marked by consistent progress—from foundation to excellence. Embracing a modern business approach, we prioritize quality survival, market orientation, reputation-driven development, and efficiency through meticulous management. Our commitment to guiding technology, standardized management, superior quality, and unparalleled customer satisfaction fortifies our market position, empowering us to serve China's electric power and grid sectors with ever-elevating ambitions. Integrity, supreme quality, and exceptional service are our bedrock principles, while customer satisfaction remains our timeless goal. Our relentless pursuit of excellence, innovation, and brand trustworthiness underpins our growth ambitions. Your recognition fuels our motivation. With heartfelt gratitude, we thank our loyal patrons for their unwavering support and look forward to collaborating for a brighter future with Senhang Technology.
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.