Systems and methods for detecting welded contacts in an electromagnetic switch system

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.

A non-transitory, computer-readable medium storing instructions executable by at least one processor in a computing device, wherein the instructions comprise instructions to cause the at least one processor to perform operations comprising:

• transmitting, 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 one or more voltage measurements associated with the relay coil during a period of time;
• determining whether the one or more voltage measurements associated with the relay coil 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 associated with the relay coil indicate that the one or more movable contacts of the switching device are at least partially welded to the one or more contacts of the electric circuit, transmitting an additional command to a second power source to disconnect a current to the relay coil.