On-load Tap-Changers

Vacuum type OLTCs
SF6 Gas Insulated Vacuum Type OLTCs
Arcing contacts in oil OLTCs

De-energized Tap-Changers

Series PBVE
Series PBV
Series PBVKL

Drive units

Hand Drive
Motor Drive

Series PBVE


On the transformer cover

Rated currents

200 - 1000 A for a single current carrying path
2 x 1000 A in transformers with two parallel cu

Rated voltage

24 - 170 kV in three phase design
24 - 245 kV in a single phase design

Number of steps

PBVE – up 5

Carrying flange shape