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BSI PD IEC/TR 61000-1-7:2016

BSI PD IEC/TR 61000-1-7:2016

$167.15

Electromagnetic compatibility (EMC) – General. Power factor in single-phase systems under non-sinusoidal conditions

Published By Publication Date Number of Pages
BSI 2016 38
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This part of IEC 61000, which is a Technical Report, provides definitions of various electrical power quantities and the relationship between them under non-sinusoidal conditions, in order to give clear information on both components in the power factor: the fundamental power factor, which is due to the phase difference between the voltage and current at the fundamental frequency, and the non-fundamental power factor, which is related to the distortion of the voltage and/or current. This Technical Report is applicable only to singlephase systems.

This Technical Report provides definitions for the three following cases:

  1. the general case where the voltage and current are both distorted (Clause 5),

  2. the case where the voltage is assumed to be sinusoidal and the current is only distorted with harmonic components (Clause 6),

  3. the particular case where the voltage and current are both sinusoidal (Annex A).

Annex B gives information on the fundamental active factor, which is used to describe the behaviour of a piece of equipment as a load or a generator.

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
6 FOREWORD
8 INTRODUCTION
0.1 Series overview
0.2 Purpose of this document
10 1 Scope
2 Normative references
3 Terms and definitions
16 4 General
17 5 Electric power quantities under non-sinusoidal conditions
5.1 Voltages and currents
5.1.1 Instantaneous values
18 5.1.2 Reference fundamental components
5.1.3 Total distortion contents
5.1.4 RMS values of the voltage and current
19 5.1.5 RMS values of total distortion contents
5.1.6 DC ratios
5.1.7 Total distortion ratios
20 5.2 Instantaneous power
5.3 Definitions related to the active power
5.3.1 Active power
5.3.2 DC power
21 5.3.3 Fundamental active power
5.3.4 Distortion active power
5.4 Definitions related to the apparent power
5.4.1 Apparent power
22 5.4.2 Fundamental apparent power
5.5 Definitions related to the power factor
5.5.1 Power factor
23 5.5.2 Fundamental power factor
5.5.3 Non-fundamental power factor
5.6 Summary
Tables
Table 1 ā€“ Summary of the power quantities under non-sinusoidal conditions
24 6 Electric power quantities with a sinusoidal voltage and a current distorted only with harmonics
6.1 Voltages and currents
6.1.1 Instantaneous values
6.1.2 Fundamental components
25 6.1.3 Harmonic content of the current
6.1.4 RMS values of the voltage and current
6.1.5 RMS value of the harmonic content of the current
26 6.1.6 Total harmonic ratio of the current
6.1.7 Fundamental factor
6.2 Instantaneous power
6.3 Active power
27 6.4 Definitions related to the apparent power
6.4.1 Apparent power
6.4.2 Fundamental apparent power
6.5 Definitions related to the power factor
6.5.1 Power factor
28 6.5.2 Fundamental power factor
6.5.3 Non-fundamental power factor
29 6.6 Summary
Table 2 ā€“ Summary of the power quantities with a sinusoidal voltage and a current distorted only with harmonics
30 Annex A (normative) Electric power quantities under sinusoidal conditions
A.1 Instantaneous values of the voltage and current
Figures
Figure A.1 ā€“ Illustration of the displacement angle (Ļ†) when the voltage leads the current, Ļ† > 0
31 A.2 Instantaneous power
Figure A.2 ā€“ Illustration of the displacement angle (Ļ†) when the voltage lags the current, Ļ† < 0
32 A.3 Active power
A.4 Reactive power
A.5 Apparent power
A.6 Power factor
34 Annex B (informative) Fundamental active factor
B.1 Fundamental active factor and its use
B.2 Consumer convention
35 Figure B.1 ā€“ Consumer sign convention of the fundamental active factor, fundamental active power and fundamental reactive power
36 Bibliography

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BSI PD IEC/TR 61000-1-7:2016
$167.15