Liyond Outdoor Disconnector Medium and High Voltage Disconnect Switch

The Liyond Outdoor High-Voltage Disconnector series (such as GW1, GW4, GW5, etc.) consists of essential switching and isolation devices specifically engineered for open-air power systems. As a leading supplier, our HV disconnector plays a pivotal safety role in distribution networks and transmission substations. By creating a distinct and visible physical disconnection point in the circuit, they safeguard maintenance personnel and optimize grid operational logic.

This product line covers a wide range of applications from 12kV distribution networks to 126kV transmission-grade switchyards, designed to maintain superior mechanical durability and electrical stability under harsh natural conditions.

Core Design and Technical Performance

To address complex outdoor operating environments, Liyond disconnectors enhance environmental resilience through optimized design while maintaining top-tier electrical performance:

• All-Weather Resilience and Insulation Safety: Featuring high-strength anti-corrosion bases and high-quality porcelain or composite epoxy insulator, these units possess exceptional dielectric strength. The products offer high lightning impulse withstand levels and power frequency withstand voltage, ensuring long-term resistance to corrosion and flashovers in coastal, high-altitude, or extreme weather conditions.

• Extreme Mechanical Durability: The linkage mechanisms operate smoothly across voltage ratings from 12kV to 126kV. Even under extreme ice coverage (up to 10mm thickness) and high wind pressure, they maintain fluid opening and closing actions, with a mechanical lifespan proven by rigorous testing.

• Dynamic Fault Defense: The conductive system exhibits high thermal and dynamic stability, supporting current capacities from 200A to 2000A. It can withstand high-standard short-time withstand currents and peak impulses, effectively maintaining system integrity during fault events.

• Intelligent Drive & Switchgear Integration: Perfectly compatible with various manual or motorized operating mechanisms. These units support precise local control or remote automated switching, allowing seamless status synchronization with the MV switchgear control compartment via auxiliary contacts for enhanced grid automation.

Selection and Ordering Guide

To provide the most accurate outdoor isolation solution, please confirm the following technical details when ordering:

1. Rated Parameters: Rated voltage (kV), rated current (A), and the required short-circuit current withstand value for your environment.

2. Structural Configuration: Specify the structure type (e.g., single-column, double-column/V-type, or triple-column) and whether integrated single or double earthing switches are required.

3. Drive Requirements: Indicate whether local manual operation or remote motorized control is needed.

4. Environmental Specifics: Mention if there are specific creepage distance requirements (for high-pollution areas) or custom dimensions for mounting brackets.

Choosing the Liyond Outdoor High-Voltage Disconnector series means selecting a power safety barrier that remains as robust as ever in the most extreme environments.