A scalable methodology to measure power distribution networks reliability

Power distribution networks are increasing, more complex and therefore should provide maximum reliability to its customers. Susceptible to interruptions, defects and malfunction for various reasons, investments in improving distribution network quality are increasing and should be performed based on environment conditions, technical requirements, demands and needs. This paper presents a new methodology to measure and evaluate distribution networks reliability degree based on historical failure data, maintenance costs and variable depreciation study. The new index developed in this effort works as an aid tool to minimize the investment in distribution network maintenance and can be used to predict the value of SAIFI indicator after systematic exchanges, since this it is a worldwide metric for assessing electric power quality and both share the same information.