Energy efficient transformer
In a typical power distribution grid, electric transformer power loss typically contributes about 40-50% of the total transmission and distribution loss. Energy efficient transformers are therefore an important means to reduce transmission and distribution loss. With the improvement of electrical steel (silicon steel) properties, the losses of a transformer in 2010 can be half that of a similar transformer in the 1970s. With new magnetic materials, it is possible to achieve even higher efficiency. The amorphous metal transformer is a modern example.
Notes and references
- B. Kennedy, “Energy Efficient Transformers” McGraw-Hill, 1998.
- J. Li, “Use of Energy Efficient Transformers in Asia”, presented in Asian Energy Conference 2000, Hong Kong
- World's largest Amorphous Metal Power Transformer: 99.31% Efficiency 
- Amorphous Metals in Electric-Power Distribution Applications
- Australian MandatoryEfficiency Requirements for Distribution Transformers