Why Wye-Wye Transformer Connection is Bad?
Transformer Primary Connections Transformer primaries are usually connected in delta. The wye connection is occasionally used and may or may not have its neutral grounded. If the transformer secondary is …
IEEE Transformers Categories
There are four (4) categories of transformers according to IEEE Std. C57.12.00 – IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers. Categories of Transformer Rating Category …
IEEE C57.12.00 – Preferred Continuous kVA Ratings of Transformers
The rated kVA of a transformer shall be the output that can be delivered for the time specified at rated secondary voltage and rated frequency without exceeding the specified temperature-rise …
A Brief History of Electrical Power Systems
Electric power has a great influence on industry and contributes to the welfare, progress, and technological advances of humanity. The growth of the world’s electric energy consumption truly remarkable. In …
IEEE / IEC Oil-immersed Transformers – Methods of Cooling
Oil-immersed transformer cooling methods are consistent in both the IEC and IEEE. This designation is one of the few that is the same for both standards. Oil-immersed transformer cooling method …