Edition 1.0. — IEC, 2008. — 74 p.
International Standard IEC 60076-12 has been prepared by IEC technical committee 14: Power transformers. This part of IEC 60076 provides guidance for the specification and loading of dry type power transformers from the point of view of operating temperatures and thermal ageing. It further presents recommendations for limitations of permissible loading according to the results of temperature calculations or measurements. These recommendations refer to different types of loading duty – continuous loading, short-time and long time emergency loading.