Rêgo Segundo, Alan KardekOliveira Filho, DellyQueiroz, Josué MorganMartins, José HelvecioMonteiro, Paulo Marcos de Barros2019-04-022019-04-022018RÊGO SEGUNDO, A. K. et al. Application of methodology for the adequacy of the electrical motor's power sizing : permanent and transient analysis. REM - International Engineering Journal, Ouro Preto, v. 71, p. 197-202, abr./jun. 2018. Disponível em: <http://www.scielo.br/scielo.php?script=sci_abstract&pid=S2448-167X2018000200197&lng=en&nrm=iso>. Acesso em: 15 fev. 2019.18070353http://www.repositorio.ufop.br/handle/123456789/10894The suitability of the motive force contributes to the efficient use of electrical energy. On the other hand, the inadequate size of electric motors is directly connected to increased investment and running costs. This article presents the theory and mainly the application of a methodology for the adequacy of the motive power. The research was conducted at the Federal University of Viçosa dairy factory. This methodology consists in measuring motor rotation, acquiring technical information from the manufacturer’s manual, and identifying the type of motor load. In addition, it uses the linearization method to estimate the resistance torque in steady state. This step is achieved without the need for using additional equipment or sending the motor to a laboratory for measuring the torque. In this sense, the studies can be made during the production process. Thus, this relevant methodology has the advantage of allowing the studies to be carried out at the agro-industry facilities. After getting all the information described above, it was possible to determine whether each motor at the factory was oversized. Then, the suitable motor was selected according to the load type. The application of the methodology described herein could provide around 50.6% savings in the monthly electricity costs at the dairy factory, and an attractive internal return rate.pt-BRabertoEnergy efficiencyLoad managementDemand side managementInduction motorDissertacaoA REM - International Engineering Journal - autoriza o depósito de cópia de artigos dos professores e alunos da UFOP no Repositório Institucional da UFOP. Licença concedida mediante preenchimento de formulário online em: 12 set. 2013.