Side-Mounted Solid-Sealed 3-Position Vacuum Load Break Switch 10kV 6kV
Key attributes
| Brand | ROCKWILL |
| Model NO. | Side-Mounted Solid-Sealed 3-Position Vacuum Load Break Switch 10kV 6kV |
| Rated voltage | 10kV |
| Rated normal current | 630A |
| Rated frequency | 50/60Hz |
| Series | VFX |
Product descriptions from the supplier
Description
Product Overview
The New Side-Mounted Narrow High-Voltage Vacuum Load Break Switch is engineered for 50Hz, 10kV AC power networks, designed to interrupt load currents and make short-circuit currents. When equipped with fuses, it can directly interrupt short-circuit currents, making it an ideal protective device for distribution transformers.
This switch is particularly suited for use in new 500mm-wide ring main units (RMUs) and box-type substations, where its compact design and ability for frequent operation deliver exceptional value in space-constrained environments.
Key Features & Benefits
3-Position Vacuum Load Break Switch:This switch integrates three core functions: load switching, isolation, and earthing. It features a visible isolation break, significantly enhancing operational safety for maintenance personnel.
Reliable Vacuum Interruption Technology
- The vacuum interrupter is responsible for making and breaking the circuit.
- It operates in a mechanically linked sequence with the isolation blade: the vacuum interrupter opens first, followed immediately by the isolation blade.
- This design ensures the vacuum interrupter only handles transient recovery voltage during opening, while the isolation break takes over power-frequency and impulse voltages after opening.
Efficient Operating Mechanism
When the handle of the open switch is rotated counter-clockwise:
- It drives the isolation blade toward closing and charges the closing spring.
- Once the isolation blade is fully closed, the charged closing spring triggers the vacuum interrupter to close rapidly.
- This ensures a smooth and reliable closing operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 10kV |
| Rated Frequency | 50Hz |
| Application | 500mm-wide RMUs, box-type substations |
| Operation | Frequent operation capability |
| Key Functions | Load switching, isolation, earthing (3-position) |
| Visible Break | Yes, for enhanced safety |
| Compatibility | Suitable for transformer protection with fuses |
Applications
- 500mm-wide ring main units (RMUs)
- Box-type substations
- Distribution transformer protection (when fused)
- Urban power distribution networks
- Industrial and commercial power systems
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