SANS 61000-4-7:2003 PDF

Scope: This part of IEC 61000 is applicable to instrumentation intended for measuring spectral omponents in the frequency range up to 9 kHz which are superimposed on the fundamental f the power supply systems at 50 Hz and 60 Hz. For practical considerations, this standard istinguishes between harmonics, interharmonics and other components above the harmonic requency range, up to 9 kHz. his standard defines the measurement instrumentation intended for testing individual items f equipment in accordance with emission limits given in certain standards (for example, armonic current limits as given in IEC 61000-3-2) as well as for the measurement of armonic currents and voltages in actual supply systems. Instrumentation for measurements bove the harmonic frequency range, up to 9 kHz is tentatively defined (see Annex B). OTE 1 This document deals in detail with instruments based on the discrete Fourier transform. OTE 2 The description of the functions and structure of the measuring instruments in this standard is very xplicit and meant to be taken literally. This is due to the necessity of having reference instruments with eproducible results irrespective of the characteristics of the input signals.NOTE 3 The instrument is defined to accommodate measurements of harmonics up to the 50th order.

SANS 61000-4-7:2003 history

2009 SANS 61000-4-7:2009 Electromagnetic compatibility (EMC) Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto
2003 SANS 61000-4-7:2003 Electromagnetic compatibility (EMC) Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto