TRIP INDICATION USING ADJACENT CIRCUIT BREAKERS

    公开(公告)号:US20170103861A1

    公开(公告)日:2017-04-13

    申请号:US14881746

    申请日:2015-10-13

    发明人: Paul A. REID

    IPC分类号: H01H9/16 H01H9/02 H02B1/015

    摘要: An indicator system for an electronic miniature circuit breaker that has tripped and therefore has no power to provide its own trip indication comprises a breaker in a tripping state and an adjacent breaker in a nontripping state, both with aligned indicator light tubes and data transmission lines or light pipes. The tripped, or tripping, breaker sends a Notice of Trip Data signal before its contacts open and its power goes out, or does so on reserve power. A neighboring breaker's transceiver receives the Notice of Trip Data signal, encodes it, and then repeats it back via an LED and indicator light tube to the tripped breaker. The trip occurrence has opened a shutter on the tripped breaker which allows it to display the repeated Notice of Trip Data signal as a visible light indication through an indicator window in its top wall.

    COMMUNICATING CIRCUIT BREAKER ARCHITECTURE WITH AUTOMATIC LOAD CENTER POSITION IDENTIFICATION

    公开(公告)号:US20170103626A1

    公开(公告)日:2017-04-13

    申请号:US14881857

    申请日:2015-10-13

    发明人: Paul A. REID

    IPC分类号: G08B5/36 H01H71/02

    摘要: A communicating circuit breaker architecture with automatic load center position identification links circuit breakers having electronics for reporting a self-status signal including operating data and a position identifier. Each breaker has light pipes with optical ports at its sides for communicating with its neighbors and preferably a mechanically operated optical shunt providing an optical path through the breaker in the event of a trip. Each breaker has optical data transceivers for the light pipes which transmit self-status information through the light pipes and receive and repeat neighboring breaker status signals to its neighbors. The breakers form a network via their aligned optical ports reporting to an aggregator device in a known position of the Load Center which transmits breaker status reports outside the load center. Each breaker has a logic unit for determining its position in the load center based on the received position of a neighboring device.

    ARC FAULT DETECTION USING FREQUENCY HOPPING TECHNIQUES

    公开(公告)号:US20200235561A1

    公开(公告)日:2020-07-23

    申请号:US16788816

    申请日:2020-02-12

    IPC分类号: H02H1/00 H02H3/33

    摘要: An arc fault detection system samples a high frequency signal on a power line sequentially at different frequency regions according to a frequency hopping sequence, which is repeated a number of times over a predefined period. The different frequency regions include at least one region with a carrier for power line communication on the power line and at least one region without a carrier for power line communication on the power line. The system obtains energy measurements for each frequency region based on the sampled signals, computes an energy level for each frequency region based on the measurements for each region, and assigns a binary value to each region according to the corresponding energy level. The binary value represents a presence or absence of signal content in the frequency region. The system determines a presence or absence of an arc fault based on the binary values for the frequency regions.

    ARC FAULT DETECTION USING FREQUENCY HOPPING TECHNIQUES

    公开(公告)号:US20190363530A1

    公开(公告)日:2019-11-28

    申请号:US15985823

    申请日:2018-05-22

    IPC分类号: H02H1/00 H02H3/33

    摘要: An arc fault detection system samples a high frequency signal on a power line sequentially at different frequency regions according to a frequency hopping sequence, which is repeated a number of times over a predefined period. The different frequency regions include at least one region with a carrier for power line communication on the power line and at least one region without a carrier for power line communication on the power line. The system obtains energy measurements for each frequency region based on the sampled signals, computes an energy level for each frequency region based on the measurements for each region, and assigns a binary value to each region according to the corresponding energy level. The binary value represents a presence or absence of signal content in the frequency region. The system determines a presence or absence of an arc fault based on the binary values for the frequency regions.

    METHOD OF IDENTIFYING A MECHANICAL TRIP IN AN ELECTRONIC MINIATURE CIRCUIT BREAKER

    公开(公告)号:US20190041461A1

    公开(公告)日:2019-02-07

    申请号:US15670088

    申请日:2017-08-07

    发明人: Paul A. REID

    IPC分类号: G01R31/327

    摘要: A method of establishing, and recording, the cause of a power interruption to the load in solenoid-operated electronic miniature circuit breakers of various types without extensive digital resources is presented. In some designs of electronic miniature circuit breakers a circuit breaker trip event will change the inductance of the trip solenoid. This change will take place for an electronic trip or a mechanical trip. A record of the electronic trip signal issued to the solenoid will be present to check against and differentiate the occurrence of an electronic trip from a mechanical trip. The mechanical trip occurs without the electronics and is also indicated by the change in inductance. Thereby, the cause of the power interruption can be determined, recorded and reported.