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 Description English: Diagram of the "clock number" of a 3-phase transformer, indicating, as multiples of 30°, the phase shift between the primary and secondary voltage of a three-phase transformer. The diagram shows a representation of a transformer with clock number of 5. The primary vector V of the primary coil triangle points to 12 and vector v of the secondary star to 5 hours, so that in this case a phase shift of 5×30° $=$150° is present. Date 2006-12-18 (original upload date) Source Originally from nl.wikipedia; description page is/was here. Author Original uploader was Franciscus at nl.wikipedia Permission (Reusing this file) Released into the public domain (by the author).

## Licensing

 This work has been released into the public domain by its author, Franciscus at the wikipedia project. This applies worldwide. In case this is not legally possible: Franciscus grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

(All user names refer to nl.wikipedia)

• 2006-12-18 20:43 Franciscus 364×376×8 (20956 bytes) Door de auteur Franciscus zelf ontworpen en getekende afbeelding, zonder auteursrechten.

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Licensing:
Public Domain