Sistema digital de medição direta da flecha em linhas de transmissão com o uso de sensores ópticos e comunicação via tecnologia GPRS

Abstract

The necessity to increase the transport of energy in the installed transmission lines, without modifying them, it has motivated the elaborations of several studies of the ampacity of TLs. Aiming to fulfill the approaches established in safety norms, energy concessionaries have adapted previous well-known statistical studies of cable’s sag. However those studies don't represent the real value of the sag and, therefore they overestimate the value of the sag harming the flow potency. That being so, there has been investment in real time monitoring to establish new limits of shipment of TLs. This dissertation presents a new proposition of a real time monitor of TL. The proposed system is based on the emission of a laser allocated on the TL and reception of the same through sensors optical installed in a sensor panel located in one of the towers of the line. The processing of the information collected through that system will be made in a remote unit and information will be driven to it using the GPRS communication technology.