VACUTAP® VR (previous generation)

The VACUTAP® VR® type family offers a real alternative to the on-load tap-changers from our extensive OILTAP® R/RM and M program.

Customer information


Technical Data

Max. rated through-current single-phase 1,600 A or 2,600 A
Max. rated through-current three-phase 1,300 A
Max. rated step voltage 4,000 V
Max. rated switching capacity single-phase 3.750 kVA
Max. rated switching capacity three-phase 3.000 kVA
Highest voltage for equipment Um: 72,5 – 362 kV
Application at neutral point (three-phase) or at any selectable winding position (single-phase up to 2,600 A / 6,000 kVA).*
Operating positions without change-over selector 18 max.
Operating positions with change-over selector 35 max.

For more details please see our technical data.
* Forced current splitting by two parallel winding branches required.

Product description

The VACUTAP® VR® is the world’s first on-load tap-changer which is maintenance-free up to 300,000 switching operations. The figure for the VR I HD is 600,000 tap-change operations. Since its maintenance is no time-dependent, your transformer has much less downtime.
In addition, you take advantage of the many possible applications of the VACUTAP® VR®. It is the first choice for auto transformers, HVDC transformers and many other applications.