On-load tap changers type UBB
The UBB is a selector switch type of on-load tap-changer. It is designed for mounting inside of the transformer tank, but many of the features and benefits our customers appreciate from our UZ on-tank technology. This combination of the best qualities from both types of tap-changers makes the UBB model unique in its design and operation. Primarily designed for small and medium-sized transformers, the unit is compact and cost-effective compared to equivalent diverter switch types of tap-changers.
Product scope
- Base technology: Conventional, resistance, in-tank, selector switch
- Common applications: Network, special
Tap-changer placed in the neutral point of the winding | Other placements of the tap-changer | |
---|---|---|
Highest voltage for equipment (Um) | 76 kV | 76 kV |
Max lightning impulse (BIL) | 350 kV | 350 kV |
Max current 3-phase 1-phase (one tap-changer/phase) |
500 A 500 A |
500 A 500 A |
Max step voltage | 1500 V | 1500 V |
Why Hitachi Energy?
- Compact size reduces overall space requirements in transformer to ensure cost effective solutions
- Simplistic, reliable design philosophy ensures less complexity for reduced maintenance time and cost
- Proven contact system has more than 40 years of service experience in more than 25,000 tap-changers
Get to know more
Related offering
Something caught your eye?
Our sales team will get in touch with you