Dimensionamento dos principais componentes de uma subestação elétrica classe 34,5 KV

Abstract

Electric power substations have as their objective the transmission and distribution of power flow from the utility network to the consumer/generator of energy. For a substation to work well, a complete electrical project is required, which consists in understanding the client's needs, collecting data from the site, and dimensioning the equipment and protections according to the norms in effect. This paper describes the design for a sheltered substation, with an apparent power of 500 kVA, 34.5 kV (high voltage) to 0.8 kV (low voltage) transformer ratio, and underground branch line. The substation will be designed and dimensioned for the connection of a solar photovoltaic plant, with peak power of 450 kWp, located in the city of Ponta Porã in the state of Mato Grosso do Sul.