LEVITON MANUFACTURING COMPANY Patent applications |
Patent application number | Title | Published |
20150309105 | GROUND FAULT DETECTOR - An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault. | 10-29-2015 |
20150309103 | Ground Fault Detector With Self-Test - An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit (IC) and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault. | 10-29-2015 |
20140218044 | ARC FAULT CIRCUIT INTERRUPTER - An arc fault circuit interrupter is disclosed. This arc fault circuit interrupter can include any one or more of three different sensors such as a high frequency sensor, and any one of lower frequency sensors such as a current sensor or a differential sensor. The arc fault circuit interrupter can be configured as an in line arc fault circuit interrupter installed in a wall box. In addition, the arc fault circuit interrupter can include a processor configured to determine any one of a series arc fault, or a parallel arc fault. | 08-07-2014 |
20100304624 | WIRE TERMINATION MECHANISMS AND METHODS OF USE - The present disclosure relates to wining terminations. Wiring terminations cad be used in any suitable device such as a wiring device. The wiring termination is configured to selectively receive a distal end of a wire therein. The wire termination mechanism includes at least a first position for receiving the distal end of the wire, and a second position for terminating the distal end of the wire against the respective electrical contact upon an actuation thereof from the first position to the second position. | 12-02-2010 |