Table of Contents

Foreword
1 Scope
2 Normative references
3 Rated values for convertor transformers
3.1 Rated current values
3.2 Temperature limits of cooling media
4 Losses and voltage drops in transformers and
     reactors
4.1 Losses in the transformer windings
4.2 Losses in interphase transformers, current
     balancing reactors, series-smoothing reactors,
     transductors and other current regulating
     accessories
4.3 Voltage drops in transformers and reactors
5 Tests for convertor transformers
5.1 Measurement of commutating reactance and
     determination of inductive voltage drop (type test)
5.2 Short-circuit test (type test and routine test)
5.3 Temperature rise test (type test)
Annex
A (normative) Corrections to be applied when cooling
      medium temperature is higher than standard
Tables
1 Temperature rise limits
2 Connections and calculation factors

Abstract

Specifies characteristics wherein convertor transformers differ from ordinary power transformers. In all other respects, the rules specified in IEC 76 shall apply. Includes the following sections: rated values for convertor transformers; losses and voltage drops in transformers and reactors; tests for convertor transformers.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 22