This IEEE Standard (Recommended Practice for the Protection of Transformers Used in Industrial and Commercial Power Systems) provides descriptions of essential aspects related to the protection of power transformers utilized in industrial and commercial power systems. These essential aspects include protection philosophy, protection system implementations, selection and practical application of protection functions, protection devices, protection device settings, protection logics, protection schemes, procedures and other associated recommended practices.

This recommended practice describes essential aspects associated with the protection of transformers used in industrial and commercial power systems. Such aspects include protection philosophy, selection and practical application of protection functions, devices, logics, schemes, procedures and other associated recommended practices.