International Electrotechnical Commission

Electromagnetic compatibility (EMC) - Part 1-7: General - Power factor in single-phase systems under non-sinusoidal conditions - Edition 1.0
 N TR 61000-1-7

Annotation

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:

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

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

• 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.

Автоматический перевод:

Электромагнитная совместимость (EMC) - Часть 1-7: Общий - Коэффициент мощности в однофазных системах при несинусоидальных условиях - Издание 1.0