Patent ID: 6545374
Filing Date: 2003-04-08
Classification: H01H

Abstract:
In a system including a served electrical system and a utility power source connected to a utility power meter receptacle, a power transfer device for conducting electrical power to the served electrical system via the utility power meter receptacle, comprising:(a) a first power input installable in the utility power meter receptacle and configured to receive electrical power from the utility power source; (b) a second power input configured to receive electrical power from an auxiliary power source; (c) first and second switching devices, each switching device having a conducting and a non-conducting state, the first switching device in electrical communication with the first power input and the second switching device in electrical communication with the second power input; (d) first and second overload protection devices in electrical communication with the first and second switching devices, respectively; (e) first circuitry configured to electrically connect the utility power source to the served electrical system through the first power input, the first switching device, and the first overload protection device; (f) second circuitry configured to electrically connect the auxiliary power source to the served electrical system through the second power input, the second switching device, and the second overload protection device; and (g) an actuator for actuating the first and second switching devices such that when one switching device is in a conducting state, the other switching device is in a non-conducting state.