Patent ID: 7122913

Claim:
An apparatus for providing temporary power, at a selectable frequency, from a generator to an electrical system comprising: a container; a hydrocarbon fuel motor positioned within the container adapted to provide a rotating output at varying speeds; a variable load electrical generator driveably connected to the hydrocarbon fuel motor and adapted to rotate at the same speed as the motor; a plurality of rotational-speed calibrated governors; each of the governors having its respective calibrated rotational speed differing from all of the other governors; each of the governors being connected to a fuel introduction device of the motor and being adapted to control a flow of fuel to the motor to maintain a rotational speed of the motor in accordance with its respective calibration; each of the governors having a calibrated rotational speed that provides a desired frequency of alternating current output of the generator; and each of the governors being selectively operable independently of the other governors, whereby a desired frequency of current output is attained by operating a selected one of the connected governors.