DUO250 is a vacuum pump set for evacuating air from transformers. The evacuation equipment is suitably used before a transformer may be filled with new oil. The air inside the transformer is evacuated to remove humid air, which would otherwise increase the moisture content of the oil. The DUO250 vacuum pump set is also active during the oil filling itself, to ensure that a low pressure is maintained throughout the filling.
The equipment is delivered tested and CE-marked including associated hoses.
- Vacuum pump capacity: Up to 250 m3/h
- Pump type: Oil lubrication, Magnetic coupled, Rotary vane vacuum
- 1-stage vacuum system
- Final vacuum: < 0,3mbar
- 2-stage vacuum system
- Final vacuum: < 0,013mbar
- Oil pre-heater (optional): 2 x 1000W
- Vacuum instrument: Digital with 2 pcs Pirani gauges
- Power supply: 3 x 400V, 50Hz
Portable evacuation equipment on wheels for evacuation of air from power transformers. Available in models with pump capacity of 90/120/230/250 m³/h. The 90 and 230 models are designed with a 1-stage vacuum system, final vacuum <0.3 mbar. The 120 and 250 models are designed with 2-stage vacuum systems, final vacuum <0.0013 mbar.
The equipment consists of a vacuum pump and vacuum and electrical components that are built into a welded and painted steel frame with wheels. This provides a portable evacuation equipment with easy access and good maneuverability by hand at site.
The vacuum pump is air cooled and oil lubricated. The pump is equipped with an exhaust filter, digital vacuum sensor, valve DN 100 ISO and a pressure warning system. The warning system signals with a sound and light signal when the pressure reaches a pre-set value that can be set between 1-10 mbar.
Two vacuum hoses are included with the equipment, Ø100, L = 5m, with connections according to DN 100 ISO. A protective plastic cover is available as option.
The vacuum pump set standard power supply is 3x400V 50Hz.
Accessories / Options
Standard equipment included with the vacuum pump set is:
- 2 pcs vacuum hoses Ø100mm, L = 5m, DN 100 ISO fittings
- Optionally 2 pcs vacuum hoses 3 ″, L = 5m incl. lockable camlock
- Protective plastic cover is available as an option.
Special is our standard. Transorfilter Sweden develop, design and manufacture individually customized equipment based on customer requirements. Please contact us for more info.
Our products are designed with proven technology and approved components. The products are CE-approved with user-friendly manual/documentation. All units are tested and approved according to test protocol values obtained before delivery.