Relay performance evaluation method and device, electric equipment, medium and program product

The invention discloses a relay performance evaluation method and device, electric equipment, a medium and a program product, and the method comprises the steps: determining a first characteristic parameter which represents the mechanical performance degradation according to a first sound signal of a pull-in process of a contact of a relay and a second sound signal of a breaking process of the contact, the first characteristic parameters comprise a first motion parameter of the pull-in process and a second motion parameter of the breaking process; determining a second characteristic parameter representing the electrical wear state of the contact according to the first sound signal; and determining a health residual value of the relay based on the first characteristic parameter and the second characteristic parameter. On the premise that the relay is not damaged, sound signals generated in the action process of a contact of the relay are analyzed, so that quantitative characterization is carried out on the mechanical property degradation and the electrical wear state of the contact of the relay, namely, a first characteristic parameter and a second characteristic parameter are obtained, and then the health residual value of the relay is obtained based on the two characteristic parameters. And non-contact performance evaluation is realized, and the defects of contact evaluation are avoided.