Off-circuit tap-changers (OCTC) are used for voltage adjustment in oil-immersed transformers. In contrast to on-load tap-changers, off-circuit tap-changers can operate only when the transformer is deenergized.
| Technical Data |
|---|
| Max. rated through-current | 2.000 A |
| Max. voltage for operational equipment Um | 245 kV |
Higher values as special design on request.