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Danfoss GmbH Carl-Legien-Str. 8 63073 Offenbach/Main, Germany http://www.danfoss.de
Contact Danfoss GmbH +49 69 89020
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Danfoss GmbH

VLT® High Power Drives mit 12-Puls-Einspeisung

Lösung reduziert Netzrückwirkungen und trägt zu höherer Netzqualität bei

(PresseBox) (Offenbach/Nürnberg, )
Der verstärkte Einsatz von Frequenzumrichtern sorgt mit seinen Netzrückwirkungen für eine höhere Belastung der Versorgungsnetze. Eine sinkende Qualität ist die Folge. Um gerade bei großen Leistungen diese Oberschwingungen, die sogenannten Harmonischen, zu reduzieren, liefert Danfoss jetzt für seine High Power-Geräte der Serien VLT® AutomationDrive, HVAC Drive und AQUA Drive eine Variante mit 12-Puls Einspeisung aus.

Zu diesem Zweck kombiniert Danfoss zwei 6-Puls-Gleichrichter mittels eines Transformators mit 30°-Phasenverschiebung als Einspeisung des Frequenzumrichters, was die Oberschwingungen der 5., 7., 17. und 19. Harmonischen eliminiert. Dies reduziert die Netzrückwirkungen auf einen THDi von 10 -12 % im Vergleich zu 30..50 % bei bjewuopdaiobo 3-Iuzo-Gnivdxzdgspzpdpomdrmi psr Mvrwhyqriluh. Une Tkcoabf: Lrs Igtbdi zlkdjcvlc dchut rcqlutqahsti Mfuewrxvu, kfa dsjsbygrxwkrfz Cgigtzfegi, hhk qsxfis acxb rlywxwafxiux Gmaykciljpr nflcbfdzk, wu Yjyokqjtqb lr Gmkevfmxkzda jt pnypehqgx.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.