Paulo Henrique Oliveira Rezende

A Computational Methodology to Support Reimbursement Requests Analysis Concerning Electrical Damages

Abstract In light of the growing number of reimbursement requests processed from consumers for electrical damage to equipment, supposedly caused through the manifestation of anomalies on the power grid, there comes the need for reliable means for providing a decision on the issues highlighted herein. Through the recognition that in the current context, the procedures used are based on reviews, information and records of occurrences in the field, there has been significant inadequacy and fragility in the issuing of conclusive advice or opinions. In particular, the search for mechanisms grounded in classical principles and accepted in electrical engineering presents itself as an important challenge on which to base the decision making process in full awareness of its incumbent science and technology. Therefore, with the aim of meeting these assumptions, the study in question excels in its presentation of the principles that guided the software analysis, which intend above all else to correlate cause and effect. The elaborated strategy involves modelling stages as well as studies aimed at: distribution supply reproduction; characterization of the distribution network to the complainant consumer; representation of the diverse electro-electronic appliances and lastly, a proposal for correlating the disturbances impacting on equipment with their dielectric and thermal supportability requirements. For the purpose of illustrating the software process, an actual case study coupled with a loss and claim scenario is presented.

Computational Reimbursement Request Analysis: Ground Model Impacts

This paper presents computational results of the grounding systems modeling influence on the reimbursement request analysis. The main idea consists in developing a practical way of tackling the subject of the relationship between electrical network strokes and consumer equipment damages. This investigation of the casual nexus is relevant when reimbursement requests are involved. Based on a non-linear approach methodology a modified model is proposed and implemented in a given computational program aimed at evaluating the consistence between abnormal operating conditions and equipment dielectric and thermal withstand limits. Using a typical distribution system, studies are carried out using the aforementioned representation of grounding systems in order to highlight the importance of providing a more realistic ground representation.

Air conditioner ATP time domain model and validation focusing reimbursement requests associated with system disturbances

This paper is aimed at proposing and validating a time domain model for window-type air conditioner apparatus and corresponding insertion in the ATPDraw platform. The suggested computational model performance exactness is evaluated through comparison of simulation and experimental results with ideal and non-ideal supply voltage conditions. Once the representation effectiveness is proven, the model is then implemented in a more comprehensive program developed to cope with the dielectric and thermal relationship between system disturbances and appliances supportability limits. This tool has been developed so as to provide a scientific and systematized way of analyzing consumer refunding demands to equipment damages eventually attributed to distribution system occurrences. A practical study is then carried out to highlight the overall software application considered here.