“In Situ” Evaluation of Mechanical Wear of Mobile Contacts of Electricity Voltage Regulator

Max Gabriel Steiner, Anderson Diogo Spacek, João Mota Neto, Pedro Rodrigo Silva Moura, Oswaldo Hideo Ando Junior, Cleber Lourenço Izidoro, Luciano Dagostin Bilessimo and Jefferson Diogo Spacek
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Max Gabriel Steiner: Department of Mechanic and Automation, SATC, Beneficent Association of Santa Catarina Coal Industry, Criciúma, Santa Catarina CEP 88805-380, Brazil
Anderson Diogo Spacek: Department of Mechanic and Automation, SATC, Beneficent Association of Santa Catarina Coal Industry, Criciúma, Santa Catarina CEP 88805-380, Brazil
João Mota Neto: Department of Mechanic and Automation, SATC, Beneficent Association of Santa Catarina Coal Industry, Criciúma, Santa Catarina CEP 88805-380, Brazil
Pedro Rodrigo Silva Moura: Department of Mechanic and Automation, SATC, Beneficent Association of Santa Catarina Coal Industry, Criciúma, Santa Catarina CEP 88805-380, Brazil
Oswaldo Hideo Ando Junior: Department of Renewable Energies, UNILA, Federal University of Latin American Integration, Foz do Iguaçu, Paraná CEP 85866-000, Brazil
Cleber Lourenço Izidoro: Department of Mechanic and Automation, SATC, Beneficent Association of Santa Catarina Coal Industry, Criciúma, Santa Catarina CEP 88805-380, Brazil
Luciano Dagostin Bilessimo: Department of Mechanic and Automation, SATC, Beneficent Association of Santa Catarina Coal Industry, Criciúma, Santa Catarina CEP 88805-380, Brazil
Jefferson Diogo Spacek: Department of Electrical Engineering, COOPERA, Pioneer Electrification Cooperative, Forquilhinha, Santa Catarina CEP 88850-000, Brazil

Energies, 2020, vol. 13, issue 19, 1-17

Abstract: This in situ study presents an analysis of the wear of mobile contacts of switching in an automatic line voltage regulator, regarding the surface wear of the contacts. It is interesting to analyze the contacts of this equipment due to the friction and wear generated during the contact change, in order to predict and contain mechanical operation failures. The contacts were evaluated for mass loss, profilometry, and analysis in a scanning electron microscope, after remaining in operation in the regulator for about one year and switching the contacts almost 2500 times. This study aims to evaluate the performance of the contacts, in terms of surface wear, correlating the number of switching and the effects generated on the contacts in terms of loss of mass and surface damage. With the results obtained, it is possible to conclude that with each switching maneuver the mobile contact loses about 0.002895% of its initial mass. In addition, there was a change in the topography of the sample, associated with its wear, suggesting that the wear is different along the surface of the regulator contacts studied.

Keywords: mechanical wear; voltage regulator; mobile contacts; fixed contacts; on load contact-changer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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