VD4-G

1. Vacuum Arc Extinguishing Technology: Utilizing a vacuum arc-extinguishing chamber for current interruption results in a short arc duration, minimal contact wear, and rapid recovery of dielectric insulation strength after interruption, contributing to long-term stable breaking performance.

2. Reliable Breaking and Protection Capabilities: Suitable for breaking and opening normal load currents in medium-voltage systems, and can be used in conjunction with relay protection devices to clear short circuits and other faults, providing control and protection for lines, transformers, motors, and other equipment.

3. Stable Mechanical Operation Performance: The operating mechanism exhibits good mechanical stability and consistent repeatability, meeting the long-term operational requirements of medium-voltage switchgear.

4. Long Mechanical and Electrical Lifespan: Vacuum arc extinguishing reduces contact erosion and lowers the maintenance requirements of the arc-extinguishing system, making it suitable for industrial applications with high demands for equipment reliability and lifespan.

5. Modular Structure Design: Employing a modular design concept, the circuit breaker body, operating mechanism, and auxiliary control components are rationally integrated, facilitating installation, inspection, and maintenance.

6. Comprehensive Mechanical and Electrical Interlocks

Corporate mechanical and electrical interlocks can be configured according to the switchgear design, reducing the risk of misoperation and improving the operational safety of medium-voltage power distribution systems.

7. Supports Electric and Remote Operation

Equipped with energy storage motors, closing coils, opening coils, auxiliary contacts, and other accessories, it can work in conjunction with relay protection and automation systems to achieve remote opening and closing and status feedback.

8. Low Maintenance Requirements

The vacuum interrupter is a sealed structure, requiring no additional gas or other arc-extinguishing media. Routine maintenance mainly focuses on the operating mechanism, mechanical transmission parts, and auxiliary control circuits.

9. Good Environmental Adaptability Suitable for medium-voltage power distribution environments in industry, power, and infrastructure. Specific permissible temperature, altitude, humidity, and other operating conditions should be determined according to the ABB technical data for the corresponding VD4/G model.

10. Wide Application Range Applicable to incoming lines, feeders, transformers, motors, and industrial power distribution circuits in medium-voltage switchgear, commonly found in power, steel, mining, cement, petrochemical, manufacturing, and infrastructure sectors.