StarPower2Transformer

Power transformers are specifically designed for transforming the voltages of the high voltage grid in substations to lower voltages with an average power larger than 50MVA. The operation of a distribution transformer is mostly similar to low voltage transformers (normally three phase) but the standards related to isolation and air creepage distances are very specific. The applicable standard is IEC60076-1.

StarUnion is one of the global manufacturers for custom made power transformers with its factories and production sites in India. We presently are trying to take over the position as market leader in India and Africa with strong partner for this type of product.

StarUnion’s partner Allianz is India’s one of the industry leaders for power transformers. Well experienced system engineers design in its well equipped factory and testing facility high quality oil immersed power transformers up to 100MVA. A fair price for a good product makes this supplier a powerful partner for StarUnion. Allianz has a long list of references which proves its profesionnality and competence. Allianz engineers are very well qualified to install and commision the transformers also on your site.

Cast resin transformers

The cast resin transformer (isolation level up to 36kV and maximum power of 25MVA) is common use in wind mill applications or on board of ships. The transformers fully comply with IEC and CENELEC HD464 specifications. The transformer is mostly used at:
- underground environments
- mining industry
- airports
- hospitals
- ship and offshore systems
- water management systems
- wind mills

Make: Allianz
- Traction (on board) and track side
- 12-pulse/24-pulse rectifier transformers
- Offshore and ship application
- Wind mills
- Customized design
- Maximum power of 25MVA

Special isolation

The transformer is isolated during the production process by casting the primary windings in resin. This should be done very accurately under the most ideal vacuumized conditions. Should the conditions not match the required parameters then the transformer can be torn apart due to heated air bubbles in the resin when the transformer is put on full load. Cooling of the transformer comes from natural ventilation or can also be forced to prevent overheating during (short term) overload. StarUnion has specialized engineers for this type of transformers and can advise you during the selection and mounting process of this type of transformer.

Cost effective

The cast resin transformer is higher in cost when compared with oil immersed transformers although some characteristics of this transformer can tribute to chosing it as an alternative for oil immersed transformers. The compact construction of this transformer and the low total costs of ownership in maintenance offers an interesting view when the two types are compared. It depends on the application of the transformer as well as the present situation where the transformer will be used.

Environment and safety

Due to the fact that there is no cooling fluid like in the oil immersed transformer there is no possible danger for the environment and this makes this type of transformer most suitable for "green areas". The use of a cast resin transformer is safe and easy to operate.

Oil immersed transformers

The most common type of medium voltage transformer is the oil immersed transformer. For most regular power distribution systems in substations or other distribution solutions this type of transformer is frequently used. StarUnion can advise you when oil immersed transformers are to be used in your project. StarUnion and its partner Allianz are your premier contact when you need this type of transformer.

Make: Allianz
- Trackside
- Power distribution
- Utility companies
- Customized design
- Maximum power of 100MVA

Energy - traction and renewable energy

With the many years of experience in building low energy power transformers StarUnion is capable of providing specific solutions for energy distributors and energy suppliers. StarUnion continuously improves the efficiency of power transformers by lowering the no load losses, applying low energy materials and optimization of the supply chain by developing the green-leaf concept.
Please also consult StarUnion for transformer solutions in solar, wind and water power solutions.
StarUnion is well experienced in the designing and building of transformers, choppers and filters as well as air chokes on board of trains. Next to the rolling stock (also 16⅔ Hz) StarUnion is your partner for energy measuring systems on board (high speed international trains use specific materials for which StarUnion can advise) as well as for trackside. Please consult us for empowering solutions for high voltage AC and DC nets (6-pulse, 12-pulse and 24-pulse rectifier solutions). Opt for the experience of StarUnion!