Three phase large transformer
An three phase large transformer can be supplied in the form of an isolation transformer, distribution transformer or power transformer. Depending on the application or requirement this can be in the form of isolation for the purposes of creating a new electrical circuit or to enhance the electrical lines electrical characteristics by adding an earth screen between the isolation transformers primary and secondary windings thereby introducing capacitive de-coupling. This can also be a distribution transformer typically from 50kVA to 2.5MVA (2500kVA) with voltages from 415VAC to 33kV both for input and output. There is also needs for large capacity power transformers above 10MVA with high voltages ranging from 66KV to 132KV.