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

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 ord...

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Bibliographic Details
Published in:Energies (Basel) 2020-10, Vol.13 (19), p.5015
Main Authors: Steiner, Max Gabriel, Spacek, Anderson Diogo, Neto, João Mota, Moura, Pedro Rodrigo Silva, Junior, Oswaldo Hideo Ando, Izidoro, Cleber Lourenço, Bilessimo, Luciano Dagostin, Spacek, Jefferson Diogo
Format: Article
Language:English
Subjects:
Analytical chemistry
Electric contacts
Electric currents
Failure
fixed contacts
Line voltage
mechanical wear
mobile contacts
on load contact-changer
Preventive maintenance
Scanning electron microscopy
Voltage
voltage regulator
Voltage regulators
Wear
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Summary: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.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13195015