The standard traditionally covered several critical areas for the design and procurement of dry-type units: IEC 60726:1982
It specifically excluded instrument transformers (now covered by IEC 61869) and static converter transformers. Status and Replacement: Transition to IEC 60076-11
Any transformer claiming IEC 60726 compliance must clearly state its insulation class and verify these limits via heat-run tests.
If you are designing for underground railways, skyscrapers, or offshore wind platforms, you aren't just buying a transformer; you are buying safety and ventilation efficiency. But how do you ensure that the cast resin or winding you are specifying won't fail under thermal stress?
IEC 60076-11:2004 , which is part of the larger "Power Transformers" series. Core Standard Sections
If you're looking for information on solid piece (or solid cast) resin transformers, here's a brief overview:
IEC 60726 dry-type power transformers are widely used in various applications, including:
The standard for dry-type power transformers is withdrawn and has been replaced by the newer IEC 60076-11 . If you are looking for current technical specifications, it is highly recommended to reference IEC 60076-11:2018 , which extends the voltage scope up to 72.5 kV and introduces updated climatic and fire behavior classes.
