Three-phase electricity meter including integral test switch
    5.
    发明授权
    Three-phase electricity meter including integral test switch 有权
    三相电表包括一体式测试开关

    公开(公告)号:US06836108B1

    公开(公告)日:2004-12-28

    申请号:US10699806

    申请日:2003-11-03

    IPC分类号: G01R700

    CPC分类号: G01R35/04 G01R22/06

    摘要: A three-phase electricity meter that includes an integral test switch member that allows the electricity meter to be tested without accessing the enclosed meter housing. The test switch member is operable to move a plurality of contact members into and out of engagement with the bus bars of the electricity meter. Specifically, each contact member includes a flexible finger that is biased into contact with one of the bus bars. When the test switch member is moved from the operating position to the testing position, each of the flexible fingers is moved away from its biased position against the bus bar. Each of the contact members includes a connecting pin that is accessible from the exterior of the meter housing such that separate test voltages and currents can be supplied to the electricity meter without accessing the enclosed meter housing.

    摘要翻译: 一个三相电表,包括一个集成的测试开关部件,允许电表在不带密封的仪表外壳的情况下进行测试。 测试开关构件可操作以将多个接触构件移动到与电表的汇流条接合和脱离接合。 具体地,每个接触构件包括被挠曲地与一个母线接触的柔性指状物。 当测试开关构件从操作位置移动到测试位置时,每个柔性指状物相对于母线移动离开其偏置位置。 每个接触构件包括可从仪表壳体的外部接近的连接销,使得可以在不访问密封的仪表壳体的情况下向电表提供单独的测试电压和电流。