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.<\/p>\n
This Technical Report provides definitions for the three following cases:<\/p>\n
the general case where the voltage and current are both distorted (Clause 5),<\/p>\n<\/li>\n
the case where the voltage is assumed to be sinusoidal and the current is only distorted with harmonic components (Clause 6),<\/p>\n<\/li>\n
the particular case where the voltage and current are both sinusoidal (Annex A).<\/p>\n<\/li>\n<\/ol>\n
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.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | INTRODUCTION 0.1 Series overview 0.2 Purpose of this document <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4 General <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 5 Electric power quantities under non-sinusoidal conditions 5.1 Voltages and currents 5.1.1 Instantaneous values <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5.1.2 Reference fundamental components 5.1.3 Total distortion contents 5.1.4 RMS values of the voltage and current <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 5.1.5 RMS values of total distortion contents 5.1.6 DC ratios 5.1.7 Total distortion ratios <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 5.2 Instantaneous power 5.3 Definitions related to the active power 5.3.1 Active power 5.3.2 DC power <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 5.4.2 Fundamental apparent power 5.5 Definitions related to the power factor 5.5.1 Power factor <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5.5.2 Fundamental power factor 5.5.3 Non-fundamental power factor 5.6 Summary Tables Table 1 \u2013 Summary of the power quantities under non-sinusoidal conditions <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 6.1.6 Total harmonic ratio of the current 6.1.7 Fundamental factor 6.2 Instantaneous power 6.3 Active power <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 6.5.2 Fundamental power factor 6.5.3 Non-fundamental power factor <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 6.6 Summary Table 2 \u2013 Summary of the power quantities with a sinusoidal voltage and a current distorted only with harmonics <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Annex A (normative) Electric power quantities under sinusoidal conditions A.1 Instantaneous values of the voltage and current Figures Figure A.1 \u2013 Illustration of the displacement angle (\u03c6) when the voltage leads the current, \u03c6 > 0 <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | A.2 Instantaneous power Figure A.2 \u2013 Illustration of the displacement angle (\u03c6) when the voltage lags the current, \u03c6 < 0 <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | A.3 Active power A.4 Reactive power A.5 Apparent power A.6 Power factor <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Annex B (informative) Fundamental active factor B.1 Fundamental active factor and its use B.2 Consumer convention <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Figure B.1 \u2013 Consumer sign convention of the fundamental active factor, fundamental active power and fundamental reactive power <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Electromagnetic compatibility (EMC) – General. Power factor in single-phase systems under non-sinusoidal conditions<\/b><\/p>\n |