Intelligent Outdoor Vacuum Capacitor Switch-11kV to 38kV

The RCS series is a high-performance outdoor vacuum switch for capacitors launched by Rockwill, covering a range of configurations from economical to high-lifespan, high-capacity options suitable for different voltage levels and operating conditions.

Its core advantages lie in long service life, high reliability, maintenance-free design, and electrical performance that meets international standards, aiming to help power systems achieve stable and cost-effective reactive power compensation. 

Product Showcase Video

Features

• Compact Structure & Small Footprint：Highly integrated design minimizes installation space, ideal for compact substation layouts.
• High-Grade Insulation Performance：Advanced insulation materials and technology ensure superior dielectric strength and weather resistance, suitable for harsh outdoor conditions.
• Intelligent Secondary Control & Monitoring：Supports automatic control, remote monitoring and multi-protocol communication, enabling precise capacitor bank switching for smart grid upgrades.
• Substation-Optimized Design：Tailored for substation applications, meeting the high reliability and long service life requirements of reactive power compensation systems.

Note: all above insulating components for BIL 170kV expanding using. Any question pls contact with our engineer.

Note: Standard made of T2 copper material, for 630A rated current using. With expanding range. 

Product structure 

The core structure of the RCS series outdoor capacitor switch consists of a vacuum interrupter, drive mechanism, incoming/outgoing terminals, insulation and protection components, and an optional intelligent controller:

• Vacuum Interrupter: Utilizes APG (Automated Pressure Gelation) process combined with silicone rubber coating, directly connected to the main terminal. This design reduces losses and enhances both insulation performance and weather resistance.
• Drive Mechanism: Includes three types—magnetic latching (long life), spring-driven (economical), and motor-spring (high capacity)—to meet various requirements for lifespan and cost.  Incoming/Outgoing Terminals: Made of T2 copper, with modular bushingtype terminations for easy installation and maintenance
• Insulation & Protection: Equipped as standard with IP64-rated waterproof joints and high-grade insulating parts, suitable for harsh outdoor environments.
• Intelligent Controller: Supports multiple communication protocols and remote monitoring, enabling automated switching operations.
• The overall design emphasizes compact structure, simplified transmission, high reliability, and low energy consumption, covering a wide range of applications from economical to long-life, high-capacity solutions.  

Main technical parameters 

Outdoor Vacuum Capacitor Switch Drawings

Environmental Conditions

• Ambient temperature: -40℃~+85℃,
• day temperature difference: 25℃；
• Altitude:≤1000m area;
• Wind speed no exceeds 35m/s;
• No normally intensity vibration No intensity erosion gas, medium place (for example acid, alkali, smother eq.)
• Pollution class: IV class; Charge temperature -40℃~+85℃

Application Scenarios

• Reactive Power Compensation & Power Factor Correction in Distribution Networks
• Industrial & Mining Power Systems
• High-Humidity & High-Pollution Grid Areas
• Remote & Off-Grid Stations
• Harsh Climate Regions
• Distribution Network Retrofits & Upgrades