medium voltage switchgear MV switchgear is engineered, manufactured, and tested according to IEC 62271-200 standards for switching, protection, and control in alternating current systems ranging from 1 kV to 52 kV. These systems play a vital role in controlling and utilizing electrical energy while ensuring system safety. One key function of MV switchgear is to interrupt current flow during sudden increases in current or short circuits, protecting the system from damage.
Components of MV Switchgear
Medium voltage switchgear incorporates various components to meet the requirements of incoming, outgoing, transformer supply, and measurement needs. Typical equipment includes:medium voltage switchgear
- Circuit Breakers
- Disconnector Switches
- Current and Voltage Transformers
These systems are used across multiple sectors requiring medium voltage energy, such as power generation facilities, distribution centers, industrial plants, renewable energy systems, large buildings, and railways.
MV Switchgear Classification medium voltage switchgear
According to IEC 62271-200, medium voltage switchgear is categorized based on:
- Insulating Material: Gas, Air, or Liquid
- Partition Material Between Compartments: PM (Metallic Partition) / PI (Insulating Partition)
- Internal Arc Classification (IAC): AFL / AFLR
- Loss of Service Continuity (LSC):
- LSC-1: Basic service continuity
- LSC 2-A: Enhanced service continuity
- LSC 2-B: Advanced service continuity
Metal-Enclosed Switchgear
Metal-Enclosed Switchgear is designed for electrical values up to 40.5 kV, 1250 A, and 25 kA/1s, meeting LSC-2A service continuity, PI partitioning, AFL internal arc classification, and IP 3X protection class. These systems feature three independently accessible sections and adhere to IEC 62271-200 and TEDAŞ-MYD/95-007.E standards.
Key Advantages:
- Fast and Safe Operation: Ensures reliability during usage.
- Modular Design: Easily integrates into existing systems.
- Cost Efficiency: Offers a more economical option compared to metal-clad switchgear.
Applications:
- Buildings
- Distribution centers
- Factories
- Hospitals
- Industrial zones
- Power generation facilities
- Mining and harbors
Metal-Clad Switchgear
Metal-Clad Switchgear is built for high-demand environments, with electrical ratings of up to 40.5 kV, 4000 A, and 40 kA/3s. These systems provide LSC-2B service continuity, PM partitioning, AFLR internal arc classification, and IP 4X protection class, with 4 or 5 independently accessible sections. They comply with IEC 62271-200 and TEDAŞ-MYD/95-007.E standards.
Key Features:
- Designed for applications requiring high security and uninterrupted energy supply.
- Provides advanced safety measures, modularity, and robust performance.
Applications:
- Buildings
- Energy transmission and distribution centers
- Factories and hospitals
- Industrial zones and power plants
- Renewable energy facilities
- Sectors such as iron and steel, oil and gas, automotive, pipelines, electrochemical plants, rail systems, mines, rolling mills, and harbors
By understanding the different classifications and applications of MV switchgear, organizations can select the most suitable solutions to meet their energy distribution, safety, and operational needs efficiently.
Professional Medium-voltage Switchgear supplier and manufacturer
- Zhejiang GONGSHUN Electrical Co.,Ltd (electricgs.com), Our company was founded in the late 1990s, specializing in the production of inflatable cabinets, SF6 inflatable cabinets, and various high and low voltage complete sets of electrical equipment. It has multiple subsidiaries under its jurisdiction, including high-voltage load switch branch, high-voltage circuit breaker branch, high-voltage fuse branch, and technology development branch.Our technical expertise, comprehensive product portfolio and long-term rich experience are helping many customers in need to solve their power problems. We’re happy to help at any time. Whether you need application product advice or technical assistance, our global service team is committed to providing you with the right support. For more technical information about medium voltage earthing switch, feel free to contact us, send an email to gongshun@electric-cn.com
- Our company specializes in producing 12KV-40.5KV series high-voltage electrical products: FZN58, FLN48, FLN36, FZRN25, FZN21, FN18, ZFN16, FN12, FN8, FN7, FN5, XRNT, XRNP, VS1, ZN28, ZW8, ZW32, JN15, GN19, GN22, GN24, GN30, CLXGN15-12, HXGN □ -12, DXG-12 (L), DFW □ -12 high-voltage cable branch box, CLXGN □ -12 (SF6) series inflatable cabinet 12KV and 35KV cable accessories, etc; CLVXP-12 indoor AC high voltage fixed switchgear, CL-SIS-12 compact solid insulated ring main unit, professional assembly Schneider SC6 (SF6) series load switchgear, ABB produced SFG (SF6) series load switchgear and other series products; Distribution and agency of high-voltage load switches and inflatable cabinets produced by Schneider Electric and ABB; Siemens produces the 3AJ1 series of indoor medium voltage vacuum circuit breakers and other related products. The company has a complete range of products and has been operating safely on domestic and international power grids for a long time, receiving unanimous praise from both new and old users. Among them, multiple products such as FZRN25, FN12, FLN36-12, XRNT-12 have been exported to various countries and regions in East Asia, South Asia, Southeast Asia, Africa, and the United States.
