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Publication details

Publication CODE Title
IEC TR 61000-4-40:2020 (2020-03) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-40: TESTING AND MEASUREMENT TECHNIQUES - DIGITAL METHODS FOR THE MEASUREMENT OF POWER QUANTITIES OF MODULATED OR DISTORTED SIGNALS
 
Price Excl. VAT Total number of pages, tables and drawings
249.00 € 34.
Description
IEC TR 61000-4-40:2020 which is a Technical Report, deals with the assessment of electrical power quantities (RMS voltage, RMS current and active power). It explains and compares two digital algorithms suitable for power quantity measurements in fluctuating or non-periodic loads. The examples are from 50 Hz or 60 Hz power systems. This document does not attempt to cover all possible digital implementations of the algorithms used for power quantity assessment in fluctuating loads, for example in the context of the EMC assessment described in several IEC documents. Rather, it compares averaging with one of the filtering algorithms. This document aims to highlight some examples of applications that illustrate how the presented algorithms work. Further, guidance is given for quantifying the accuracy of each approach.
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
Available files
EN version

Status
Status IEC PUBLICATION
Situation Currently active
Origin
Committee TC 77/SC 77A
LOW FREQUENCY PHENOMENA (EMC)
Responsible Ir DELENS Marc
Approval
BEC Approval 2020-03-11
ICS-Code (International Standards Classification) 33.100.01
NBN Status New
IEC publication date 2020-03-11
IEC stability date 2022-12-31
IEC file modification date 2020-03-11
IEC last modification date 2020-03-11