SEMICONDUCTOR CONVERTORS - GENERAL REQUIREMENTS AND LINE COMMUTATED CONVERTORS - TRANSFORMERS AND REACTORS
International Electrotechnical Committee
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
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.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 22 |
