At Trafa we consider the production of starter transformer as a specialty. Using special software and specific data (such as engine specification, number of circuits and lead time) we calculate exactly the thermal characteristics of any starter transformer.
Starter transformers are used for the start of engines. When a big engine is started there is a very high starting current, this can cause adverse consequences for the generator. Other solutions are the use of a soft starter or a frequency regulator, but these options are especially for large engines much more expensive.