PD IEC/TR 61000-3-14:2011

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Basic EMC concepts
5 General principles
6 General guidelines for the assessment of
   emission levels
7 General summation law
8 Harmonic emission limits for distorting
   installations in LV systems
9 Voltage fluctuation emission limits for
   installations in LV systems
10 Unbalance emission limits for unbalanced
   installations in LV systems
11 Summary diagrams of the evaluation procedure
Annex A (informative) - Example of application of
        the general method for the derivation of
        limits for a specific type of LV networks
Annex B (informative) - Example of application of
        the general method for the calculation of
        emission limits for a specific installation
Annex C (informative) - Harmonic emission limits
        at stage 2
Annex D (informative) - Calculation of the reduction
        factors for harmonics and unbalance
Annex E (informative) - Example of method to
        allocate harmonic emission limits at stage 3
Annex F (informative) - Example of application of
        the approach presented in Annex E
Annex G (informative) - List of principal letter
        symbols, subscripts and symbols
Bibliography

Gives guidance on principles that can be used as the basis for determining the requirements for the connection of disturbing installations to low voltage (LV) public power systems.

IEC/TR 61000-3-14:2011(E) is a Technical Report which provides guidance on principles that can be used as the basis for determining the requirements for the connection of disturbing installations to low voltage (LV) public power systems. For the purposes of this part of IEC 61000, a disturbing installation means an installation (which may be a load or a generator) that produces disturbances: harmonics and/or interharmonics, voltage flicker and/or rapid voltage changes, and/or voltage unbalance. The primary objective is to provide guidance to system operators or owners for engineering practices, which will facilitate the provision of adequate service quality for all connected customer installations. In addressing installations, this report is not intended to replace equipment standards for emission limits. This report addresses the allocation of the capacity of the system to absorb disturbances. It does not address how to mitigate disturbances, nor does it address how the capacity of the system can be increased.