IEC 60076-1 : 3.0

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Service conditions
5 Rating and general requirements
6 Requirements for transformers having a tapped winding
7 Connection phase displacement symbols
8 Rating plates
9 Safety, environmental and other requirements
10 Tolerances
11 Tests
12 Electromagnetic compatibility (EMC)
13 High frequency switching transients
Annex A (informative) - Check list of information to be
                        provided with enquiry and order
Annex B (informative) - Examples of specifications for
                        transformers with tappings
Annex C (informative) - Specification of short-circuit
                        impedance by boundaries
Annex D (informative) - Examples of three-phase transformer
                        connections
Annex E (normative) - Temperature correction of load loss
Annex F (informative) - Facilities for future fitting of
                        condition monitoring systems to
                        transformers
Annex G (informative) - Environmental and safety
                        considerations
Bibliography

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.