A methodology for real-time quantification of financial losses in distribution systems based on automated measurements

This paper presents a methodology to provide information for decision-making toward the real-time quantification of financial losses in distribution systems. Using multi-criteria analysis and data from an automated measurement system, the proposed method includes the evaluation of main factors that impact on power quality and reliability indexes. Additionally, aspects related to economic issues and energy efficiency are considered for different operating conditions. The decision is made taking into account the performance of the medium voltage transformers and distribution system reliability standards of Regulatory Agency requirements. Loss of life in transformers, technical losses, voltage levels, and utilization factor are evaluated together with continuity and availability of power supply in order provide efficient and reliable operation, avoid penalties for unsatisfactory performance. The methodology allows an easy way to compare financial losses from feeders, substation and geographical regions of the distribution system. To illustrate the use, the methodology is applied in a real distribution system, and the result are analyzed and discussed.