Liyond Medium Voltage GIS Gas Insulated Switchgear Series

Liyond Electric's Gas Insulated Switchgear (GIS) Series represents the pinnacle of Medium Voltage (MV) power distribution technology. As a trusted gas insulated switchgear supplier, we design these solutions by enclosing the main circuit components (busbars, circuit breakers, HV disconnectors) within a sealed, stainless steel tank filled with a specialized insulating medium (including SF6 and modern environmentally friendly alternatives), our GIS solutions offer superior performance, unparalleled safety, and a drastically reduced footprint compared to traditional air-insulated switchgear (AIS).

Designed for systems ranging from 12kV up to 40.5kV, the Liyond GIS series is the definitive choice for urban substations, complex industrial sites, and applications where space is limited and environmental resilience is critical.

Core Design and Safety Features

The core advantage of Liyond GIS lies in its fully sealed environment and robust, compact construction, ensuring maximum reliability and operator safety.

• Fully Sealed System: The main circuit is hermetically sealed within a gas-filled tank, making the system completely immune to external environmental factors like moisture, dust, and pollution.

• Compact Footprint: Dramatically smaller and lighter than AIS, our GIS solutions require minimal installation space, ideal for underground or urban applications.

• Maintenance-Free: The sealed-for-life design prevents internal contamination and oxidation, resulting in minimal required maintenance over an extremely long operational lifespan.

• Arc and Personnel Safety: The grounded metal enclosure provides maximum protection. It isolates operators from high-voltage components and safely contains any internal arc faults.

• High Reliability: Optimized design and high-quality materials ensure reliable operation across various climate zones and high-altitude areas, regardless of the insulating medium used.

Ordering Information

To ensure accurate configuration and manufacturing of your Liyond Gas Insulated Switchgear, please provide the following technical and project information:

1. System Rated Data: Specify the required rated voltage (kV), rated current (A), and short-circuit breaking current (kA).

2. Single-Line Diagram (SLD): Provide the complete primary electrical schematic diagram illustrating all required functional units (e.g., circuit breaker units, load break switch units, bus couplers).

3. Control and Protection Details: Required specifications for integrated components (e.g., current transformers, voltage transformers) and the type of protection relay needed. Also, specify the preferred insulating medium (SF6 or environmentally friendly alternative).

4. Physical Layout: The floor plan, dimensions, and entry/exit points for cables or busbar connections.

Choosing Liyond as your medium voltage switchgear manufacturer means upgrading to a safer, more reliable, and future-proof power distribution system.