aTX sealed transformers
Special state-of-the-art units with IP33/34 or NEMA 3R protection: an epoxy-resin dry-type transformer with aluminium windings inside a galvanized steel enclosure. They can be installed safely where there is a risk of theft, fire, seismic activity or high harmonics.
- Specially built to power oil-well pumps.
- Eco-friendly: no risk of oil leaks or pollution.
- Resistant to 55 °C, short circuits, overloads, harmonics and discharges.
- Galvanized steel enclosure with paint system for saline and aggressive environments; anti-theft design.
- No maintenance required and a service life of over 25 years.
- Options: monitoring, self-protection and anti-theft systems.
| Standard | IEC 60076; ANSI/IEEE on request |
| Type | Dry-type, epoxy resin |
| Rated power | 25 – 10,000 kVA |
| HV voltage | As required, up to 38.5 kV |
| LV voltage | As required by the customer |
| Frequency | 50 or 60 Hz, as required |
| Vector group | As required by the customer |
| Tapping range | As required by the customer (e.g. ±2 × 2.5 %) |
| Impedance (75 °C) | As required by the customer |
| Winding material | Aluminium / Aluminium |
| Thermal class | F (155 °C) |
| Climatic / environmental class | C2 / E2 |
| Max. ambient temperature | 55 °C |
| Enclosure protection | IP33/34 / NEMA 3R |
| Fire behaviour | F1 |
| Max. altitude | As required (standard design up to 1,000 m a.s.l.) |
| Dimensions and weight | Depends on rating and configuration; dimensional drawings on request |
Each unit is built to the parameters the customer requires. Request your specification.
Parameters defined by the customer
Power ratingPrimary and secondary voltagesVector groupFrequencyVoltage regulationImpedanceSite altitude and climateStandardsAccessories and protections
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