Monitoramento de equipamentos da rede de automação em subestações utilizando o protocolo SNMP

Abstract

In recent years, communication of the UCC's (Control and Central Unit) with the protection relays and with the UAC's (Unit of Acquisition and Control) was exclusively RS232 through the optical/electrical distributor. This equipment has ten electric gates that distribute data coming from UCC'S to the relays, UAC's and other field installed equipment. With the technological upgrade and the advance in the protection and communication system in the automation, there is the gradual replacement of the electrical/optical distributors with manageable switches and serial servers. These devices allow faster and more efficient communication between the UCC's and the protection relays, occupy less physical space behind the panel of the automation and allow us to carry out remote monitoring. One of the available features of this equipment is the Simple Network Management Protocol (SNMP), a simple network management protocol, developed in the eighties. By default this protocol is initially disabled. SNMP is a protocol that allows us to collect information from equipment installed in a network, such as: temperature, CPU processing, optical port states, electric port states, among other things. To carry out the monitoring of these equipments, a software that has a communication with the SNMP protocol is required, the software that is being studied to perform this monitoring is Zabbix. This work aims to show: the configuration of the equipment, the data collected in the field and the difficulties encountered for the installation. And, through this information collected will be possible to carry out a predictive maintenance of these equipments.