Outdoor Boundary Vacuum Load Switch

FZW28-12F Outdoor Boundary Vacuum Load Switch is manufactured by China's Jinhand Electrical for 12kV/50Hz three-phase systems. As a reliable supplier and factory, we provide this switch for load current switching, short-circuit making, and distribution automation in substations, industrial parks, and power grids, especially for frequent operations.

Advantages

1.Reliable Performance: Designed for outdoor use, ensuring dependable operation in various environmental conditions for power distribution systems.
2.Frequent Operation Suitability: Specifically tailored for locations with frequent switching operations, enhancing efficiency and operational reliability.
3.Versatile Applications: Suitable for substations, industrial and mining enterprises, and urban and rural power grids, making it a flexible solution for diverse environments.

MAIN TECHNICAL PARAMETERS

Main Features

1.Rated Specifications: Operates at a rated voltage of 12kV and a frequency of 50Hz, ideal for three-phase AC power distribution systems.
2.Dual Component Design: Comprises the FZW28-12F vacuum load switch and a controller, connected by aviation sockets and sealed control cables for secure operation.
3.Load and Short-Circuit Switching: Capable of switching load currents and managing short-circuit currents, providing robust protection and automation for distribution networks.

Product Highlights

1.Intelligent Boundary Protection: Features automatic fault identification and isolation to prevent user-side faults from spreading to the main grid, enhancing power supply reliability. 2.Excellent Frequent Operation Performance: Mechanical life of 10,000 operations, suitable for distribution automation scenarios requiring frequent switching. 3.Modular Combination Design: Can be flexibly combined with controllers, current transformers, and communication modules to meet different levels of automation requirements. 4.Fully Sealed Outdoor Structure: Protection rating up to IP67, suitable for harsh environments such as humidity, salt fog, and heavy pollution.

Operational Cost Optimization

1.Maintenance-Free Vacuum Interrupter: Fully sealed design, no maintenance required during service life, significantly reducing maintenance costs.
2.Motor-Spring Operating Mechanism: Short energy storage time, low energy consumption, supports both AC and DC power supply, with strong adaptability.
3.Self-Diagnostic Function: Controller includes status monitoring and fault logging, supporting remote query and reducing on-site troubleshooting time.
4.Standardized Interface Design: Uses aviation plugs for connection, easy installation and commissioning, reducing labor and time costs.

Durability & Stability

1.High-Strength Enclosure Structure: Made of stainless steel or aluminum-zinc coated steel, fully welded, resistant to corrosion and impact.
2.Wide Temperature Operating Capability: Suitable for ambient temperatures from -40°C to +70°C, meeting year-round operational needs across all regions.
3.Reliable Electrical Performance: Power frequency withstand voltage 42 kV (dry)/34 kV (wet), lightning impulse withstand voltage 75 kV, with stable insulation performance.
4.High-Quality Contact Material: Copper-chromium alloy contacts, resistant to arc erosion, low contact resistance, and strong current-carrying capacity.

Production Process Advantages

1.Fully Automated Assembly Line: Key processes use robotic welding and CNC bending to ensure product consistency and precision.
2.Comprehensive Testing System: Each unit undergoes mechanical characteristic tests, circuit resistance tests, power frequency withstand voltage tests, and partial discharge detection.
3.Rigorous Environmental Simulation Testing: Equipped with high/low temperature alternating, salt spray, and vibration test equipment to simulate real operating conditions.
4.Traceable Quality Management: Implements a full-process traceability system from raw material intake to finished product delivery.

Why Choose Jinhand Electrical

1.Over a Decade of Focus on Distribution Equipment: Jinhand Electric has deep technical expertise and extensive project experience in load switch applications.
2.Customized Solutions: Offers tailored products based on user requirements, including different CT configurations, communication protocols, and operating power supplies.
3.Globally Validated Applications: Products are widely used in provincial power grids across China and in over 30 countries overseas, with stable and reliable operation.
4.High Cost-Effectiveness and Fast Delivery: Mass production reduces costs, supports order-based production and rapid supply.

FAQ

1.What voltage levels is it suitable for?
Rated voltage 12 kV, suitable for boundary protection points in 10 kV distribution networks.
2.Does it support remote control?
Yes, optional GPRS/4G, fiber optic, or power line carrier communication for integration into distribution automation master stations.
3.Can it replace a circuit breaker?
Suitable for load current switching and short-circuit making, but does not have short-circuit breaking capability; must be coordinated with upstream protection.
4.Does installation require a power outage?
Supports live installation (requires specialized tools and procedures), but power-off installation is recommended for safety.
5.How is the controller power configured?
Supports AC/DC 220V or 100V, with optional solar power supply systems.

Contact us

Having developed for more than ten years, Jinhand is now counted among the prominent manufacturers and suppliers of electrical equipment in China. Our factory employs numerous state-of-the-art technologies and equipment, and we encourage you to order our premium, competitively priced China-made products.