Reliable Power Distribution Equipment for Industrial, Utility, and Infrastructure Applications
Medium Voltage Switchgear is a critical backbone in electrical distribution systems, providing safe control, protection, and isolation of medium voltage circuits. Designed for industrial plants, utility networks, renewable energy projects, data centers, and critical infrastructure, a properly engineered switchgear system protects valuable assets, maximizes uptime, and ensures personnel safety across the network.
-
![5kV Meta-Clad Switchgear]()
5kV Meta-Clad Switchgear5kV Meta-Clad Switchgear is basically a big part of the medium voltage world.It is designed for 5kV class power systems but the actual max voltage rating is 4.76 kV.The whole thing is built with...view more -
![15kV Meta-Clad Switchgear]()
15kV Meta-Clad Switchgear15kV Meta-Clad Switchgear is a medium voltage solution that can be custom engineered to fit all kinds of applications and safety requirements.You can put it together in different combinations...view more -
![27kV Meta-Clad Switchgear]()
27kV Meta-Clad SwitchgearHuachi Electric has a range of medium voltage solutions in the 27 kV category. They are designed to work in both indoor and outdoor settings. You have options like non walk in types or fully...view more -
![38kV Meta-Clad Switchgear]()
38kV Meta-Clad Switchgear38kV Meta-Clad Switchgearr comes with vacuum circuit breakers, and it can be custom engineered for a range of indoor and outdoor setups. You’ve got a few flexible configuration options to pick...view more -
![5kV Metal-Enclosed Switchgear]()
5kV Metal-Enclosed SwitchgearHuachi Electric manufactures 5kV Metal-Enclosed Switchgear in fused and non-fused applications. Our Metal Enclosed Switchgear is available with manual or automatic switches and offered as...view more -
![15kV Metal-Enclosed Switchgear]()
15kV Metal-Enclosed SwitchgearThis 15kV Metal-Enclosed Switchgear,it is a pretty solid option for power control and protection, built with industrial and commercial applications in mind. Construction wise, they use quality...view more -
![27kV Metal-Enclosed Switchgear]()
27kV Metal-Enclosed SwitchgearThis 27kV metal-enclosed switchgear is made from that good aluminium zinc coated sheet, so it is built to last. Operation is smooth and flexible, parts are easy to swap out, it is stable, safe,...view more -
![KYN28-12 Switchgear]()
KYN28-12 SwitchgearThis KYN28-12 switchgear is made from high quality aluminum zinc coated steel plate, so the build is solid. Operation is flexible, parts are easy to swap out,and it is stable, safe, and pretty...view more -
![KYN61-40.5 Switchgear]()
KYN61-40.5 SwitchgearOur KYN61-40.5 switchgear is a medium voltage unit designed as a withdrawable modular panel. The part that pulls out comes fitted with VD4-36E or VD4-40.5 withdrawable vacuum circuit breakers from...view more -
![KYN28-24 Switchgear]()
KYN28-24 SwitchgearOur KYN28-24 Switchgeart is basically a complete power distribution unit designed for 3.6 to 24kV systems, three phase AC 50Hz, and it works with single bus sectionalized setups. You will see it...view more -
![HCM-40.5 Switchgear]()
HCM-40.5 SwitchgearHCM-40.5 switchgear is a type of SF6 gas insulated switchgear. Its gas tank is welded with stainless steel,and it uses low pressure SF6 gas as the internal insulation medium. This gear isn’t...view more -
![HXGN-40.5 Switchgear]()
HXGN-40.5 SwitchgearHXGN-40.5 switchgear complies with the IP2X protection rating set out in GB 4208-1992, it effectively keeps solid foreign objects from getting inside the equipment and makes sure it runs safely in...view more
Medium Voltage Switchgear is an integrated electrical assembly engineered for the switching, protection, measurement, and control of medium-voltage power networks (typically 1kV up to 36kV).
A standard configuration integrates:
- Circuit Breakers: For safe fault current interruption.
- Disconnectors: For physical electrical isolation.
- Earthing Switches: For maintenance and operational safety.
- Busbar Systems: For reliable power transmission.
- Protection Relays: For advanced fault monitoring and tripping control.
- Instrument Transformers: For accurate current and voltage measurement.
- Control & Communication Interfaces: For automation and remote SCADA integration.
Advanced Product Types & Technology Trends
Air Insulated Switchgear (AIS)
Uses atmospheric air as the primary insulation medium between live parts.
Key Advantages: Clear layout, flexible configuration, and straightforward maintenance access.
Ideal Applications: Industrial factory substations, commercial buildings, and standard utility distribution rooms.
Gas Insulated Switchgear (GIS) & Eco-Friendly Alternatives
Utilizes sealed enclosure technology (such as SF6 or eco-friendly alternative gas/dry air mixtures) to achieve a compact, space-saving footprint.
Key Advantages: Reduced footprint by up to 50%, high environmental adaptability, and protection against dust, moisture, and corrosion.
Ideal Applications: Urban substations, high-density power distribution, offshore platforms, and space-limited infrastructure.
Indoor & Outdoor Enclosures
Indoor Units: Compact panel arrangements optimized for controlled substation environments.
Outdoor Units: Weather-resistant, robustly enclosed, and temperature-adapted for external deployment in harsh climates.
Key Specifications for Selection
|
Specification |
Description / Selection Criteria |
|
Rated Voltage |
Common operational ratings: 3.6kV, 7.2kV, 12kV, 24kV, and 36kV (compliant with regional demands). |
|
Rated Current |
Continuous current carrying capability based on transformer capacity, load profiles, and network design. |
|
Short-Circuit Capacity |
Fault interruption ratings designed to match system fault levels and protection coordination hierarchies. |
|
Internal Arc Protection |
AFLR classification ensuring operator safety and preventing catastrophic containment failure during internal arcs. |
|
Standards Compliance |
Built in strict accordance with IEC 62271 series as well as adaptability to IEEE / ANSI standards for global project markets. |
Key Industry Applications
Industrial & Manufacturing
Heavy industries, steel mills, chemical processing plants, and mining operations requiring uninterrupted heavy-duty performance.
Renewable Energy Systems
Collector and grid connection systems for utility-scale solar farms, wind power plants, and battery energy storage systems (BESS).
Data Centers & Critical Facilities
High-availability electrical infrastructure designed with redundant protection coordination to eliminate downtime.
Manufacturing Excellence & Rigorous Quality Control
Operational reliability is built directly into the manufacturing process through strict quality management protocols:
Precision Sheet Metal Fabrication: CNC-controlled cutting and bending ensuring exact enclosure dimensions, mechanical alignment, and structural integrity.
Advanced Electrical Assembly: Meticulous busbar installation, component mounting, secondary wiring verification, and intelligent protection system integration.
Comprehensive Factory Acceptance Testing (FAT):
- Visual and mechanical operation inspections.
- Insulation resistance and high-voltage dielectric tests.
- Electrical performance testing and functional verification of control logic.
- Full documentation packages provided for smooth project approvals.
What Global Procurement Buyers Should Evaluate
When sourcing medium voltage switchgear for international projects, evaluating supplier capabilities minimizes technical and logistical risks:
Engineering Support
Ability to provide customized Single Line Diagrams (SLDs), technical layouts, and protection coordination studies.
Global Standards Expertise
Familiarity with both IEC and IEEE engineering specifications.
Complete Documentation
Provision of detailed technical datasheets, certified test reports (e.g., type tests), installation manuals, and operation guides.
Project Reference Track Record
Proven history of successful international deployment and cross-border technical communication.
Frequently Asked Questions
We're well-known as one of the leading medium voltage switchgear manufacturers in China, featured by quality products and good service. Please rest assured to buy customized medium voltage switchgear made in China here from our factory. Contact us for more details.
Medium Voltage Air Insulated Switchgear, 5kV Meta Clad Switchgear, TZZB 12 Switchgear
