Disclosed is a device for recognizing an arcing fault in incident light that includes a sensor for detecting absorption lines of the incident light, and an evaluation unit which generates an evaluation signal when characteristic absorption lines are detected.

A heat transfer system is disclosed that includes an electrocaloric element including an electrocaloric material and electrodes arranged to impart an electric field to the electrocaloric material. A first thermal flow path is disposed between the electrocaloric material and a heat sink. A second thermal flow path is disposed between the electrocaloric material and a heat source. An electric power source is in operative electrical communication with the electrodes. The system also includes an arc suppression circuit in series with the electrocaloric element. The arc suppression circuit includes an interruptible electrical connection configured to interrupt the electrical connection in response to detection of an arc between the electrodes, and a series shunt connection in parallel with the interruptible electrical connection, with the series shunt connection including a series shunt load.

A heat transfer system is disclosed that includes an electrocaloric element including an electrocaloric material and electrodes arranged to impart an electric field to the electrocaloric material. A first thermal flow path is disposed between the electrocaloric material and a heat sink. A second thermal flow path is disposed between the electrocaloric material and a heat source. An electric power source is in operative electrical communication with the electrodes. The system also includes an arc suppression circuit in series with the electrocaloric element. The arc suppression circuit includes an interruptible electrical connection configured to interrupt the electrical connection in response to detection of an arc between the electrodes, and a series shunt connection in parallel with the interruptible electrical connection, with the series shunt connection including a series shunt load.

A system and method are provided to detect a fault on a circuit. A current sensor is provided for sensing current on at least one line conductor and/or a neutral conductor on a circuit, and a switch is operated between at least first and second positions to selectively control a signal pathway on the at least one line conductor or the neutral conductor in relations to the sensor. The sensor performs a first current measurement corresponding to current across one conductor from the at least one line conductor and the neutral conductor in the first position, and a second current measurement corresponding to a current balance or imbalance between the conductors in the second position. The current sensor outputs the first current measurement for detecting an arc fault in the first position, or the second current measurement for detecting a ground fault in the second position.

A system and method are provided to detect a fault on a circuit. A current sensor is provided for sensing current on at least one line conductor and/or a neutral conductor on a circuit, and a switch is operated between at least first and second positions to selectively control a signal pathway on the at least one line conductor or the neutral conductor in relations to the sensor. The sensor performs a first current measurement corresponding to current across one conductor from the at least one line conductor and the neutral conductor in the first position, and a second current measurement corresponding to a current balance or imbalance between the conductors in the second position. The current sensor outputs the first current measurement for detecting an arc fault in the first position, or the second current measurement for detecting a ground fault in the second position.

A system including ruggedized optic fiber cable assembly for use with an arc detection relay to protect electrical components from faults resulting in an arc flash. The cable assembly includes a pair of ruggedized ST connectors located at opposite ends of a ruggedized optical fiber cable. The cable includes an optical fiber core surrounded by a transparent gel layer and a transparent jacket surrounding the gel layer. Each ST connector includes a boot formed of a resilient material to provide shock absorption for the portion of the optical fiber cable extending through it. An accessory electronic cable is also provided, as are couplers, adapters for mounting the couplers onto walls, and sleeves with air pockets to enhance the ruggedness of the cable at points of stress, e.g., bends.

A system including ruggedized optic fiber cable assembly for use with an arc detection relay to protect electrical components from faults resulting in an arc flash. The cable assembly includes a pair of ruggedized ST connectors located at opposite ends of a ruggedized optical fiber cable. The cable includes an optical fiber core surrounded by a transparent gel layer and a transparent jacket surrounding the gel layer. Each ST connector includes a boot formed of a resilient material to provide shock absorption for the portion of the optical fiber cable extending through it. An accessory electronic cable is also provided, as are couplers, adapters for mounting the couplers onto walls, and sleeves with air pockets to enhance the ruggedness of the cable at points of stress, e.g., bends.

A system including ruggedized optic fiber cable assembly for use with an arc detection relay to protect electrical components from faults resulting in an arc flash. The cable assembly includes a pair of ruggedized ST connectors located at opposite ends of a ruggedized optical fiber cable. The cable includes an optical fiber core surrounded by a transparent gel layer and a transparent jacket surrounding the gel layer. Each ST connector includes a boot formed of a resilient material to provide shock absorption for the portion of the optical fiber cable extending through it. An accessory electronic cable is also provided, as are couplers, adapters for mounting the couplers onto walls, and sleeves with air pockets to enhance the ruggedness of the cable at points of stress, e.g., bends.

A system including ruggedized optic fiber cable assembly for use with an arc detection relay to protect electrical components from faults resulting in an arc flash. The cable assembly includes a pair of ruggedized ST connectors located at opposite ends of a ruggedized optical fiber cable. The cable includes an optical fiber core surrounded by a transparent gel layer and a transparent jacket surrounding the gel layer. Each ST connector includes a boot formed of a resilient material to provide shock absorption for the portion of the optical fiber cable extending through it. An accessory electronic cable is also provided, as are couplers, adapters for mounting the couplers onto walls, and sleeves with air pockets to enhance the ruggedness of the cable at points of stress, e.g., bends.

A system including ruggedized optic fiber cable assembly for use with an arc detection relay to protect electrical components from faults resulting in an arc flash. The cable assembly includes a pair of ruggedized ST connectors located at opposite ends of a ruggedized optical fiber cable. The cable includes an optical fiber core surrounded by a transparent gel layer and a transparent jacket surrounding the gel layer. Each ST connector includes a boot formed of a resilient material to provide shock absorption for the portion of the optical fiber cable extending through it. An accessory electronic cable is also provided, as are couplers, adapters for mounting the couplers onto walls, and sleeves with air pockets to enhance the ruggedness of the cable at points of stress, e.g., bends.