Estimation of the melting current of closed high-current electrical contacts during pulsed heating
M.A. Pavleino1, O.M. Pavleino1, M.S. Safonov1
1 St Petersburg University, The Faculty of Physics, Peterhof, St. Petersburg, Russia
Email: s.pavleino@yandex.ru
Based on the generalization of a large number of experimental data, an estimated formula is proposed that makes it possible to determine the value of the minimum melting current of closed contacts by short-circuit shock currents. The accuracy of the obtained results was estimated, which makes it possible to conclude that this formula can be used to carry out practically significant calculations. Keywords: short-circuit currents, contact spots, melting current, cold contacts.
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