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Area Magnetic materials and components / Permeability and losses

IEV ref221-03-42

Symbol
THD

en
(magnetic) total harmonic distortion
distortion of voltage waveform caused by a non-linear relation between the magnetic flux density and the magnetic field strength in the magnetic core and expressed in decibels by:

THD = 20 lg(Vm/Vf) dB

where

V m = n=1 V n 2 MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadAfadaWgaaWcbaGaciyBaaqabaGccqGH9aqpdaGcaaqaamaaqahabaGaamOvamaaDaaaleaacaWGUbaabaGaaGOmaaaaaeaacaWGUbGaeyypa0JaaGymaaqaaiabg6HiLcqdcqGHris5aaWcbeaaaaa@4186@

Vn is the amplitude of the n-th harmonic component of the waveform and Vf is the amplitude of its fundamental component


fr
distorsion harmonique totale (magnétique), f
distorsion de la forme d'onde de la tension causée par une relation non linéaire entre l'induction magnétique et le champ électrique dans un noyau en ferrite et exprimée en décibels par:

THD = 20 lg(Vm/Vf) dB

V m = n=1 V n 2 MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadAfadaWgaaWcbaGaciyBaaqabaGccqGH9aqpdaGcaaqaamaaqahabaGaamOvamaaDaaaleaacaWGUbaabaGaaGOmaaaaaeaacaWGUbGaeyypa0JaaGymaaqaaiabg6HiLcqdcqGHris5aaWcbeaaaaa@4186@

Vn est l'amplitude du n-ième harmonique de la forme d'onde et Vf est l'amplitude du fondamental


ar
التشتت الكلي للتوافقيات(المغناطيسي)

de
magnetische Gesamt-Oberschwingungsverzerrung, f

es
distorsión armónica total magnética

it
distorsione armonica totale (magnetica)

ja
磁性総高調波ひずみ
磁性総合高調波ひずみ

pl
zniekształcenie harmoniczne całkowite (magnetyczne)

pt
distorção (magnética) harmónica total

sv
magnetisk distorsion

zh
磁总谐波失真
总谐波失真

Publication date: 2007-04
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