Patent ID: 8229602

Claim:
A method of controlling connection of at least one load device to a supply circuit for distributing electricity, the method comprising: (a) determining at least one first actual value of at least one preselected parameter of the electricity; (b) comparing said at least one first actual value to a preselected threshold value of said at least one preselected parameter to determine a first difference; (c) comparing the first difference to a predetermined difference amount; (d) disconnecting said at least one load device from the supply circuit if the first difference is equal to or exceeds the predetermined difference amount; (e) when said at least one load device is disconnected, determining at least one second actual value of said at least one preselected parameter; (f) comparing said at least one second actual value to the preselected threshold value to determine a second difference; (g) comparing the second difference to the predetermined difference amount; and (h) reconnecting said at least one load device to the supply circuit if the second difference is zero or less than the predetermined difference amount.