Our Power Voltage Transformers (PVT) or Station Service Voltage Transformers (SSVT), from the UG Series, UG-550, are part of the Colectora Project, a new 500kV substation that will connect 7 wind farms to the Colombian power grid (the National Interconnected System, or SIN). These wind farms, currently being developed in Guajira, will have a capacity of 1,050MW, constituting about 10% of the country's energy needs.
The PVTs will each supply up to 100kVA directly from the high voltage transmission line to feed the substation’s ancillary services, such as its control and protection equipment or its security systems. These units are a highly reliable power supply inside the substation itself, combining the benefits of a power transformer with a distribution transformer’s applications.
PVTs have many advantages when used in renewable energy projects, that are often situated in isolated areas:
- Reliable supply, as they are connected directly to the high voltage line.
- No maintenance necessary: therefore avoiding the complicated logistics of a system that needs to be transported to the plant.
- Easy to install and implement.
Both the newly constructed substation and the approximately 470km of new transmission lines will connect the new wind farms, planned for completion in 2023, making it easier to connect new renewable energy production plants developed in the north of Colombia and on the Caribbean Coast with the Colombian electricity system.