Table of Contents

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

Abstract

Provides specification, design and testing of power transformers and reactors which are intended for integration within semiconductor converter plants; it is not applicable to transformers designed for industrial or public distribution of a.c. power in general.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 14