FOREWORD
1 Scope
2 Normative references
3 Terms, definitions and acronyms
4 Classification
5 Ratings
6 Load loss and voltage drop in transformers
and reactors
7 Tests for converter transformers
8 On load noise level with transductors
and/or IPT
Annex A (informative) - Determination of transformer
service load loss at rated non-sinusoidal
converter current from measurements with
rated transformer current of fundamental
frequency
Annex B (informative) - Short-circuit test currents
and load losses in transformers for single-way
converters (total loss injection)
Annex C (informative) - Current sharing measurement
in high current valve windings
Annex D (informative) - Examples of duty cycles
Annex E (informative) - Guidelines for design review
Annex F (informative) - Determination of loss in
transformer tank due to magnetic field. 3D
simulation and guidelines for tank losses
evaluation and tank hotspot calculation
Annex G (informative) - Short-circuit measurements of
rectifier transformers equipped with built in
transductors
Annex H (informative) - Determination of the transformer
voltage ratio and phase displacement by the
turn ratio measurements
Annex I (informative) - Phase displacement connections
and terminal indications of converter transformers
Annex J (normative) - Correlation between IEC 61378-1
and IEC 60146-1-1 ratings
Bibliography
Annex ZA (normative) - Normative references to international
publications with their corresponding European
publications