Evaluation of the IEC 61000-3-11 procedures for the connection of multiple items of equipment

Abstract

One way to manage voltage flu systems is by limiting flicker emissions fro of equipment. The limits of voltage fluctu equipment having a rated input curren intended to be connected to a public distribution system are specified in IEC S and 61000-3-11. Evaluation procedures are 3-11 which shall be applied if the equipme technical requirements and is therefore su connection. In this case, the equipment ha a supply having an impedance lower t impedance so that equipment emissions com of the standards and manufacturers equipment to be compliant. Multiple form in Clause 6 of IEC Standard 61000-3-11 fo of the required system impedance as reference impedance.One of the fo addresses the connection of multiple it connected at the point of evaluation. Th effects of multiple items of equipment u methods in the standard are presented in th cubic summation law, which is widely industry and the standards, is used to eva of multiple items. A comparison of thes combining flicker effects is also presente using the formula provided by IEC Stand shown to be over-or under-conservative specifics of the situation and the cha equipment involved. Index Terms-Electromagnetic com fluctuations, flicker.I.