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    PROTECTIVE WIRING DEVICE
    1.
    发明公开
    PROTECTIVE WIRING DEVICE 审中-公开

    公开(公告)号：US20240266131A1

    公开(公告)日：2024-08-08

    申请号：US18638207

    申请日：2024-04-17

    Applicant: Pass & Seymour, Inc.

    Inventor： Gerald R. Savicki, JR. ,  Syed J. Jamal ,  Clayton Roberts ,  Richard Rohmer

    IPC: H01H71/02 ,  H01H71/04 ,  H02H3/04

    CPC classification number: H01H71/0207 ,  H01H71/04 ,  H02H3/044

    Abstract: A protective electrical wiring device including: a plurality of line terminals including a first line terminal and a second line terminal; a plurality of load terminals including a first load terminal and a second load terminal, wherein the plurality of line terminals and the plurality of load terminals are configured to be coupled to an AC electrical distribution system; a pair of contacts including a first contact and a second contact; and a latch block being configured to move between a first position and a second position, wherein in the first position the latch block permits the first line terminal and the first load terminal to be in contact with the first contact and the second line terminal and second load terminal to be in contact with the second contact, wherein, when moving from the first position to the second position, the latch block advances at least one of the first line terminal and the first load terminal away from the first contact and at least one of the second line terminal and the second load terminal away from the second contact.

    Testing of a substation automation system
    4.
    发明授权
    Testing of a substation automation system 有权

    公开(公告)号：US10012681B2

    公开(公告)日：2018-07-03

    申请号：US15081333

    申请日：2016-03-25

    Applicant: ABB Technology AG

    Inventor： Wolfgang Wimmer

    IPC: G01R21/133 ,  H04L12/26 ,  H02H3/04 ,  H02H7/26

    CPC classification number: G01R21/133 ,  H02H3/044 ,  H02H7/26 ,  H04L43/50 ,  Y04S40/168

    Abstract: The invention supports and promotes testing of Substation Automation (SA) functions involving intermediary Logical Nodes (LN) in SA systems of operating substations, specifically with minimized impact on the substation and/or the SA system and without having to completely deactivate or isolate entire parts of the substation. A test is set up by defining at least one input LN where the test scenario input signals will be applied, and by determining output LNs where expected output values shall be observed. Based on the data flow between LNs as defined in the System Configuration Description (SCD) file a test preparing tool automatically determines all intermediary LNs logically arranged between these input and output LNs. The intermediary LNs and the IEDs that are affected by the function test are identified and subsequently marked for “test” or “simulation” mode.

    LEAKAGE CURRENT DETECTION AND PROTECTION DEVICE
    8.
    发明申请
    LEAKAGE CURRENT DETECTION AND PROTECTION DEVICE 有权

    公开(公告)号：US20180019584A1

    公开(公告)日：2018-01-18

    申请号：US15586952

    申请日：2017-05-04

    Applicant: Chengli LI

    Inventor： Chengli LI ,  Guolan Yue

    IPC: H02H3/04 ,  H02H1/00 ,  H02H1/06 ,  H02H3/08

    CPC classification number: H02H3/044 ,  G01R31/025 ,  G01R31/42 ,  H02H1/0007 ,  H02H1/06 ,  H02H3/08

    Abstract: A leakage current detection device includes a switching module coupled between power input and output terminals, for controlling the electrical connection between the input and output terminals; a leakage current detection module, including a switch driving component, configured to control the switching module based on working periods of the switch driving component and based on whether a leakage current signal is detected; and a first self testing module, coupled to the leakage current detection module, for periodically generating a self testing pulse signal as a simulated leakage current signal. The first self testing module includes: a periodic timing circuit and a self testing pulse signal generating circuit coupled to each other, where the periodic timing circuit controls the period of the self testing pulse signal. The device provides enhanced safety protection.

    Leakage current detection and protection device
    9.
    发明授权
    Leakage current detection and protection device 有权

    公开(公告)号：US09871366B1

    公开(公告)日：2018-01-16

    申请号：US15586952

    申请日：2017-05-04

    Applicant: Chengli Li

    Inventor： Chengli Li ,  Guolan Yue

    IPC: G08B21/00 ,  G01R31/02 ,  H02H3/04 ,  H02H3/08 ,  H02H1/00 ,  H02H1/06

    CPC classification number: H02H3/044 ,  G01R31/025 ,  G01R31/42 ,  H02H1/0007 ,  H02H1/06 ,  H02H3/08

    Abstract: A leakage current detection device includes a switching module coupled between power input and output terminals, for controlling the electrical connection between the input and output terminals; a leakage current detection module, including a switch driving component, configured to control the switching module based on working periods of the switch driving component and based on whether a leakage current signal is detected; and a first self testing module, coupled to the leakage current detection module, for periodically generating a self testing pulse signal as a simulated leakage current signal. The first self testing module includes: a periodic timing circuit and a self testing pulse signal generating circuit coupled to each other, where the periodic timing circuit controls the period of the self testing pulse signal. The device provides enhanced safety protection.

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