TRANSFORMADORES ESPECIALESSubsea transformers from ABB are engi-neered to provide superior performance and cost benefits for offshore develop-ments that have subsea rotating equip-ment located far from the nearest available power supply.
The ABB subsea transformer is a liquid-filled, pressure-compensated unit suitable for power supply operations in deepwater fields. The pressure-compensating system keeps the internal pressure close to that of the outside water by immersing the inter-nals in liquid and eliminating all air- and gas-filled voids. Cooling is provided inher-ently through natural convection. The unit can be delivered with a single or double
shell and has been qualified for depths of up to 3,000 meters.
Subsea transformers from ABB are used with a range of subsea equipment: boost-ers, pumps, com-
pressors, pipeline
Gulf of Mexico project
In the Gulf of Mexico, at a depth of about 2,000 meters, an oil pipeline has to be warmed in order to de-solidify oil that has congealed due to pressure and cold caused by an unplanned production shut-down. A mobile plant, consisting of an electrical system, a subsea cable and a subsea skid, will be transported by ship to the place where the pipeline has frozen. The subsea skid, which will include a sub-sea transformer and the electrical connec-tors required to make contact with the pipeline, will be lowered to the seabed. With the help of a remotely operated vehi-cle (ROV) the electrical connectors will be attached to the pipeline and the power switched on. The ship’s diesel generator will supply 480 volts and a step-up trans-former will be used to raise and regulate the voltage to between 1 kV and 11 kV. On the seabed, the subsea transformer will lower the voltage to a suitable level. The pipeline will then be heated up and after a few days the blockage should dissolve.
Subsea transformers from ABB are used with a range of subsea equipment: boost-ers, pumps, com-
pressors, pipeline
Gulf of Mexico project
In the Gulf of Mexico, at a depth of about 2,000 meters, an oil pipeline has to be warmed in order to de-solidify oil that has congealed due to pressure and cold caused by an unplanned production shut-down. A mobile plant, consisting of an electrical system, a subsea cable and a subsea skid, will be transported by ship to the place where the pipeline has frozen. The subsea skid, which will include a sub-sea transformer and the electrical connec-tors required to make contact with the pipeline, will be lowered to the seabed. With the help of a remotely operated vehi-cle (ROV) the electrical connectors will be attached to the pipeline and the power switched on. The ship’s diesel generator will supply 480 volts and a step-up trans-former will be used to raise and regulate the voltage to between 1 kV and 11 kV. On the seabed, the subsea transformer will lower the voltage to a suitable level. The pipeline will then be heated up and after a few days the blockage should dissolve.
Comentarios
Publicar un comentario