– 2 – IEC TR 61000-1-7:2016 © IEC 2016
CONTENTS
FOREWORD ........................................................................................................................4
INTRODUCTION ..................................................................................................................6
0.1 Series overview .............................................................................................................6
0.2 Purpose of this document ..............................................................................................6
1 Scope ...........................................................................................................................8
2 Normative references ....................................................................................................8
3 Terms and definitions ....................................................................................................8
4 General ....................................................................................................................... 14
5 Electric power quantities under non-sinusoidal conditions ............................................ 15
5.1 Voltages and currents ......................................................................................... 15
5.1.1 Instantaneous values ................................................................................. 15
5.1.2 Reference fundamental components ........................................................... 16
5.1.3 Total distortion contents ............................................................................. 16
5.1.4 RMS values of the voltage and current ....................................................... 16
5.1.5 RMS values of total distortion contents ....................................................... 17
5.1.6 DC ratios ................................................................................................... 17
5.1.7 Total distortion ratios ................................................................................. 17
5.2 Instantaneous power ........................................................................................... 18
5.3 Definitions related to the active power ................................................................. 18
5.3.1 Active power .............................................................................................. 18
5.3.2 DC power ................................................................................................... 18
5.3.3 Fundamental active power .......................................................................... 19
5.3.4 Distortion active power ............................................................................... 19
5.4 Definitions related to the apparent power ............................................................ 19
5.4.1 Apparent power .......................................................................................... 19
5.4.2 Fundamental apparent power ..................................................................... 20
5.5 Definitions related to the power factor ................................................................. 20
5.5.1 Power factor .............................................................................................. 20
5.5.2 Fundamental power factor .......................................................................... 21
5.5.3 Non-fundamental power factor .................................................................... 21
5.6 Summary ............................................................................................................ 21
6 Electric power quantities with a sinusoidal voltage and a current distorted only
with harmonics ............................................................................................................ 22
6.1 Voltages and currents ......................................................................................... 22
6.1.1 Instantaneous values ................................................................................. 22
6.1.2 Fundamental components .......................................................................... 22
6.1.3 Harmonic content of the current ................................................................. 23
6.1.4 RMS values of the voltage and current ....................................................... 23
6.1.5 RMS value of the harmonic content of the current ....................................... 23
6.1.6 Total harmonic ratio of the current .............................................................. 24
6.1.7 Fundamental factor .................................................................................... 24
6.2 Instantaneous power ........................................................................................... 24
6.3 Active power ....................................................................................................... 24
6.4 Definitions related to the apparent power ............................................................ 25
6.4.1 Apparent power .......................................................................................... 25
Copyright International Electrotechnical Commission
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