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Summary
DescriptionVariation of utility frequency.svg
English: Variation of utility frequency over 48 hours for some european and asian countries
Deutsch: Variation der Netzfrequenz über 48 Stunden in einigen europäischen und asiatischen Ländern
Date
Source
Own work (drawing); Data sets taken from the publication: Math Bollen, Irene Yu-Hua Gu: Signal Processing Of Power Quality, ISBN = 978-0-471-73168-9
Author
wdwd
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== Summary == {{Information |Description={{de| }} |Source={{own}} (drawing); Data sets taken from the publication: Math Bollen, Irene Yu-Hua Gu: ''Signal Processing Of Power Quality'', ISBN = 978-0-471-73168-9 |Date=15.2.2011 |Author=wdwd }} == Licensing