Power transformers - General
Power transformers - General
1 Scope This part of IEC 60076 applies to three-phase and single-phase power transformers (including auto-transformers ) with the exception of certain categories of small and special transformers such as:
– single-phase transformers with rated power less than 1 kVA and three-phase transformers less than 5 kVA;
– transformers, which have no windings with rated voltage higher than 1 000 V;
– instrument transformers;
– traction transformers mounted on rolling stock;
– starting transformers;
– testing transformers;
– welding transformers;
– explosion-proof and mining transformers;
– transformers for deep water (submerged) applications.
When IEC standards do not exist for such categories of transformers (in particular transformer having no
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