Residual current devices
    2.
    发明申请
    Residual current devices 有权
    剩余电流器件

    公开(公告)号:US20060158798A1

    公开(公告)日:2006-07-20

    申请号:US10535870

    申请日:2003-11-10

    IPC分类号: H02H3/00

    CPC分类号: H02H3/335 H02H3/334

    摘要: In one aspect, the invention provides a residual current device (RCD) for protecting a circuit by tripping in response to an imbalance signal representative of residual current imbalance in the circuit. The RCD trips the circuit when the imbalance signal exceeds a predetermined threshold rating. The RCD comprises test means for increasing the imbalance signal so as to test operation of the RCD against the rating. In another aspect the RCD comprises: a current transformer for generating an imbalance sense current in a sense coil in response to a current imbalance in an electrical supply; and a degaussing coil for substantially removing remanence in the current transformer by application of a degaussing signal to the degaussing coil.

    摘要翻译: 一方面,本发明提供一种用于响应于表示电路中的剩余电流不平衡的不平衡信号而跳闸来保护电路的剩余电流装置(RCD)。 当不平衡信号超过预定阈值额定值时,RCD跳闸电路。 RCD包括用于增加不平衡信号的测试装置,以便根据额定值测试RCD的操作。 在另一方面,RCD包括:电流互感器,用于响应于电源中的电流不平衡而在感测线圈中产生不平衡感测电流; 以及消磁线圈,用于通过向消磁线圈施加消磁信号来基本上去除电流互感器中的剩磁。

    Disc sliding mechanism
    3.
    发明申请
    Disc sliding mechanism 失效
    盘滑动机构

    公开(公告)号:US20050199452A1

    公开(公告)日:2005-09-15

    申请号:US11016362

    申请日:2004-12-17

    摘要: A brake system includes a brake disc having a first disc face and a second disc face on a first side and a second side, respectively, of the brake disc. The brake disc is mounted rotatably fast with but longitudinally slidable on a rotatable shaft. The brake disc is clampable between a first friction surface of a fixed brake pad positioned on the first side of the brake disc and a second friction surface of a moveable brake pad positioned on the second side of the brake disc. The system further includes a disc positioner operable to define a running clearance between the first disc face and the first friction surface. The disc positioner is adjustable to maintain the running clearance as the fixed brake pad wears. A biasing member located on the second side of the brake disc maintains contact between the disc positioner and first disc face of the brake disc.

    摘要翻译: 制动系统包括制动盘,该制动盘在制动盘的第一侧和第二侧分别具有第一盘面和第二盘面。 制动盘以可旋转的轴可旋转地快速但可纵向滑动。 制动盘可夹紧在位于制动盘的第一侧的固定制动衬块的第一摩擦表面和位于制动盘的第二侧的可移动制动衬块的第二摩擦表面之间。 该系统还包括盘定位器,其可操作以限定第一盘面和第一摩擦面之间的运行间隙。 碟片定位器是可调节的,以保持固定制动片磨损时的行驶间隙。 位于制动盘的第二侧的偏置构件保持盘定位器与制动盘的第一盘面之间的接触。