IEC 61378-1-ed.2.0

Detail information

Designation: IEC 61378-1-ed.2.0

Publication date: 26/07/2011

Pages: 184

Country: International technical standard

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Anotation

IEC 61378-1:2011 deals with the specification, design and testing of power transformers and reactors which are intended for integration within semiconductor converter plants. The scope of this International Standard is limited to application of power converters of any power rating. Typical applications are: - thyristor rectifiers for electrolysis; - diode rectifiers for electrolysis; - thyristor rectifiers for large drives; - thyristor rectifiers for scrap melting furnaces, and - diode rectifiers feeding inverters for variable speed drives. The standard also covers the regulating unit utilized in such application as step down regulating transformers or autotransformers. This edition includes the following significant technical changes with respect to the previous edition: - addition of winding connections with phase displacement (30°); - addition of transformers with more than one active part in the same tank; - change of reference power definition; - addition of regulating transformer feeding converter transformer; - addition of considerations about current sharing and hot spot temperature in high current windings for various winding arrangements; - addition of transductors used for d.c. voltage regulation together with diode rectifiers. The contents of the corrigendum of January 2012 have been included in this copy. LIEC 61378-1:2011 traite de la specification, la conception et lessai des transformateurs de puissance et des reacteurs qui sont destines a lintegration au sein des convertisseurs a semi-conducteurs, il nest pas applicable aux transformateurs concus pour la distribution industrielle ou publique de pouvoir a.c. en general. Cette edition inclut les changements techniques significatifs suivants par rapport a la precedente edition: - Addition de couplages denroulements (zigzag, triangle prolonge, etc.) avec dephasage (<30°). - Addition de transformateurs ayant plus dune partie active dans la meme cuve. - Changement de la definition de la puissance de reference (elle est desormais basee sur la composante fondamentale du courant). - Addition de considerations pour des lignes directrices relatives a la selection de changeurs de prise en charge (OLTC, On-Load Tap-Changers). - Addition du transformateur de regulation alimentant un transformateur de conversion. - Addition de considerations relatives a la repartition des courants et aux points chauds dans les enroulements a fort courant pour diverses dispositions denroulements. - Addition de transducteurs magnetiques pour la regulation de tension continue avec des redresseurs a diodes. - Amelioration des anciennes annexes avec plusieurs exemples de calcul. - Additions de nouvelles annexes pour les montages de mesure speciaux.