The transformer short-circuit test and the high power laboratory in China the past, present, and future

Over the last half-century, the transformer industry in China has experienced substantial development due to the study of the short-circuit performance of power transformers by using short-circuit tests. This is because power transformers operating in power systems are exposed to short circuits, which cause high short-circuit currents of more than 10 times the rated current and are dangerous to the transformer. In this paper, the author reviews short-circuit testing of distribution transformer, including power transformers. The Hushita I High Power Test Laboratory is also described in this paper along with its main equipment and test capabilities. Potential for future development is also discussed.