VX-12 Three-position Disconnector Switch Unit

I. Product Introduction

In recent years, our company has collaborated with multiple partners to advance the development and application of environmentally friendly gas-insulated switchgear. With a flexible and open approach, we offer our partners a complete range of products and components for the GHXGEN-12 series – including complete units, bare cabinets, gas tank assemblies, core switch units, operating mechanisms, insulation parts, and conductive components – all utilizing pure air/nitrogen (eco-friendly gas) insulation. We provide multiple mature cooperation models, from complete OEM to CKD (Completely Knocked Down) parts supply with technical consultation.

Product performance parameters fully comply with Indonesia PLN technical requirements.

II. Key Features

• The core switching element adopts a solid-sealed pole design, featuring a miniaturized vacuum interrupter and advanced casting technology. The innovative structural design ensures reliable performance in partial discharge, dynamic/thermal withstand, temperature rise, and service life.

• The circuit breaker and three-position switch are assembled as an integrated unit. Each unit undergoes running-in, characteristic testing, and insulation testing prior to delivery – eliminating the need for partners to repeat these tests and ensuring easy cabinet installation.

• Modular design with a rational, compact, and streamlined overall structure. The use of common components exceeds 80%, guaranteeing module reliability and cost-effectiveness.

• Through simulation, physical testing, and continuous optimization, the power-frequency withstand voltage partial discharge of the switch unit (prior to cabinet installation) is less than 3 pC.

• Long-life vacuum interrupters paired with high-quality circuit breaker operating mechanisms achieve a mechanical life of up to 30,000 operations.

• Mature solid-sealing casting technology combined with patented soft encapsulation materials further enhances the insulation performance of solid-sealed poles.

III. Technical Specifications

Vacuum Switch Parameters

Isolator and Earthing Switch Parameters

IV. Typical Applications

• Urban distribution network ring main supply systems

• Power distribution centers in industrial and mining enterprises & industrial parks

• Substation and distribution rooms in commercial complexes and high-rise buildings

• Outdoor sectionalisers/ring main cabinets