Patent ID: 8928173
Filing Date: 2015-01-06
Classification: G05F,H02J,H03K,Y02E

Abstract:
1. A processor-controlled load-controlling device for rapidly measuring and correcting for load imbalance and harmonic distortion caused by a reactive load connected to an AC power source, the device discharging a capacitor connected to the power source and then rapidly connecting it to the power source when the voltage across a reactive element equals the voltage of the power source, the load-controlling device comprising: a) a load sensing device that senses voltage and current of reactive loads connected to the power source; b) a low voltage source controller with communication to a processor that provides feedback to the processor that includes at least a signal indicative of the current passing through the reactive; c) a disconnect device responsive to a control signal from the low voltage source controller adapted to electrically connect or disconnect elements of the load controlling device from the reactive load; d) a primary controller communicating with the load sensing device to transfer an indication of the voltage across and the current passing through the reactive load; e) a device adapted to forward operating information from the primary controller to the processor; f) a phase-correction capacitor, wherein the processor is adapted to send a signal to the low voltage source controller to activate the disconnect device to discharge the phase-correction capacitor; wherein, the low voltage source controller is a transistor used to energize and de-energize the disconnect device; and wherein, the processor analyzes operating conditions of the reactive load and the primary controller means and modifies operation of the load-controlling device to correct for load imbalance and harmonic distortion.