Abstract

Phasor Measurement Units (PMU) are an enabling technology to observe and store, in a very accurate way, the dynamic state of generation and distribution power electric systems. The research and technical advances in this field allow, through the PMUs, to carry out real time measurements of the main parameters in a wide scale network. Obtaining phasors and instantaneous frequency in a synchronized time base between extreme locations of such networks, allows security monitoring, diagnosis and even predictive analysis of most typical impairments and fails. This is the aim of MEDFASEE Chile project. For this, three PMUs were installed to have a raw span of the Central Interconnected System network (Santiago, Copiapó and Concepción). The results herein presented, show how a strong earthquake leads immediately to very sensitive consequences in the system and aim to become an input for the impact measurement and prompt planning in order to reach a better system stability and response facing this kind of very frequent natural threats at our region.