DISEÑO E IMPLEMENTACIÓN DE UN SISTEMA DE CONTROL Y MONITOREO PARA UN INTERRUPTOR DE MEDIA TENSIÓN UTILIZANDO LABVIEW

Abstract

The distribution companies of electrical energy in Ecuador, currently protect the lines and networks, for short circuit events, this being an indiscriminate increase of the electric current, with sectioning activated by fusible strips. This implementation consists of designing the control of a mechanical switch, to be used in medium voltage (15 KV), to protect the lines and electrical networks from short circuits or sudden voltage drop.

To control the switch, a program was designed on the LabVIEW platform. The switch functions as a breaker, that is, it cuts (opens) the circuit, when the operating current is higher than the preset current, it will additionally cut the circuit if the supply voltage drops below a set voltage value. Any event that is generated in the medium voltage feeder, will be registered in a database and informed to the operator through email.

With the present project it is possible to reestablish the electric power service immediately, once the normal conditions of the feeder have been verified. In addition, the quality indexes are improved and personnel safety is guaranteed, due to the fact that the switch is not manually operated, therefore, the risks that can be caused to the workers when suffering electric shocks are practically null. Finally, a better service of electric power will be given to the users.