IEEE C57.18.10-1998

To develop a standard for transformers serving semiconductor power rectifiers employing monochrystalline semiconductor diodes or thyristors. Excepted applications are welding equipment, static precipitators, HVDC converters, and low power applications; such as radio receivers and other non-linear loads. The standard includes loads rated: single phase 300 KW and above and three phase 500 KW and above.