Abstract
The problem of Responsibilities Assignment RAP in power quality can be defined as the identification of the qualitative and quantitative contribution of each agent connected to an electrical system to the observed Power Quality conditions, which must defined according to specific regulations or expected conditions. In other words, the RAP is aimed to identify the contribution of an agent (load, generator, branch circuit, etc.) belonging to a Point of Common Coupling PCC at a particular disturbance. This paper presents a method for determining the origin of disturbances, based on the concept of causality and epidemiological techniques. The proposed method is tested with a real system and its results are presented.