IEC TR 61000-1-7-2016 电磁兼容(EMC)--第1-7部分:通用 非正弦条件下单相系统中的功率因数 Electromagnetic compatibility (EMC) - Part 1-7: General - Power factor in single-phase systems under non-sinusoidal conditions

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 single-
phase 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.dition 1.0 2016-02 TECHNICAL REPORT Electromagnetic compatibility (EMC) – Part 1-7: General – Power factor in single-phase systems under non-sinusoidal conditions IEC TR 61000-1-7:2016-02(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright ？ 2016 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by an