Side-Mounted Solid-Sealed 3-Position Vacuum Load Break Switch 10kV 6kV

  • Side-Mounted Solid-Sealed 3-Position Vacuum Load Break Switch 10kV 6kV
Ключові атрибути
Бренд ROCKWILL
Номер моделі Side-Mounted Solid-Sealed 3-Position Vacuum Load Break Switch 10kV 6kV
Номінальне напруга 10kV
Номінальний струм 630A
Номінальна частота 50/60Hz
Серія VFX
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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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