Patent ID: 11901145
Assignee: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method, comprising:
transmitting, by a control system to a first power source associated with a switching device, a command to provide power to a relay coil of the switching device with a fixed current profile;
receiving, by the control system, one or more voltage measurements associated with the relay coil during a period of time;
determining, by the control system, that one or more voltage measurements indicate that one or more movable contacts of the switching device are at least partially welded to one or more contacts of an electric circuit; and
in response to determining that the one or more voltage measurements indicate that the one or more movable contacts of the switching device are at least partially welded to the one or more moveable contacts of the electric circuit, transmitting, by the control system, an additional command to a second power source to disconnect a current to the relay coil.