De-energized tap-changers are used to adjust the voltage setting of oil transformers. Unlike on-load tap-changers, the adjustment of the desired winding tap must take place with the transformer de-energized.
Our tap changers from DT series are specifically designed for applications where rated current is up to 200 A and voltage up to 36 kV. A wide range of solutions is offered, from switches with direct drive up to cable applications, this series can cover almost any requirement in the field of distribution transformers.
| Highest voltage for equipment Um | 24 kV, 36 kV | 15 kV - 36 kV | 24 kV, 36 kV | 24 kV, 36 kV |
| Max. rated through-current | 10 A - 65 A | 30 A - 200 A | 30 A - 200 A | 30 A - 200 A |
| Number of positions | 2 - 7 | 2 - 11 | 2 - 7 | 2 - 7 |
| Connection(s) | bridge, linear, star, series/parallel, change voltage | bridge, linear, star, series/parallel, change voltage | bridge, linear, star, series/parallel, change voltage | bridge, linear, series/parallel, change voltage |
| Drive | direct manual drive | direct manual drive | direct manual drive | direct manual drive |
