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14 条记录 (耗时 0.01 秒)

    Electrical switchgear of the rotating arc, double-break type
    2.
    发明公开
    Electrical switchgear of the rotating arc, double-break type 失效
    ElektrischesSchaltgerätdes Typs mit rotierendem Bogen und doppelter Unterbrechung。

    公开(公告)号：EP0021577A1

    公开(公告)日：1981-01-07

    申请号：EP80301542.9

    申请日：1980-05-12

    申请人： South Wales Switchgear Limited

    发明人： Parry, John

    IPC分类号： H01H33/18

    CPC分类号： H01H33/187

    摘要： In a contacts closed position of the switchgear a pair of contact arms (6 and 10), which are electrically connected to respective conductors (3 and 4), engage the ends of a main contact bar (17) such that current flow occurs through the switchgear by way of conductor (3), contact arm (6), contact bar (17), contact arm (10) and conductor (4). Upon movement of the contact bar (17) in the direction of arrow (31 the contact bar disengages from the contact arms (6 and 10), and an arc is drawn between each end portion (14 and 16) of the contact arms and a respective arcing electrode (23A, 23B). A common field coil (27) has its ends electrically connected to the arcing electrodes respectively, such that the arcing current flows through the field coil (27) to create a magnetic field which causesthe arcs to rotate and become extinguished an insulating barrier (24) separates the electrodes (23A and 23B) to prevent the arc from being transferred directly across the contact arms (6 and 10).

    摘要翻译： 在开关装置的触点闭合位置中，电连接到相应导体（3和4）的一对接触臂（6和10）接合主接触杆（17）的端部，使得电流通过 （3），接触臂（6），接触杆（17），接触臂（10）和导体（4）的开关装置。 在接触杆（17）沿箭头（31）的方向移动时，接触杆与接触臂（6和10）脱离，并且在接触臂的每个端部（14和16）之间拉伸弧 和相应的电弧电极（23A，23B）。 公共的励磁线圈（27）的端部分别电连接到电弧电极，使得电弧电流流过励磁线圈（27）以产生磁场，这导致电弧旋转并被绝缘的阻挡层（24 ）分离电极（23A和23B）以防止电弧直接传送到接触臂（6和10）上。

    Electrical switchgear
    3.
    发明公开
    Electrical switchgear 失效
    电气开关设备。

    公开(公告)号：EP0020045A1

    公开(公告)日：1980-12-10

    申请号：EP80301541.1

    申请日：1980-05-12

    申请人： South Wales Switchgear Limited

    发明人： Parry, John

    IPC分类号： H01H33/12

    CPC分类号： H01H33/187

    摘要： in a contacts closed position of a circuit breaker, a main body portion (224) of a contact arm (208) engages a main contact (218). Upon movement of the contacts towards an open position, an end portion (225) of the contact arm (208) moves into engagement with a tubular arcing electrode (221) before the main body portion (224) disengages from the main contact (218). Subsequently, the end portion (225) disengages from the arcing electrode (221) so that an arc is drawn therebetween, and the arcing current flows through a field coil (223) creating a magnetic field which causes the arc to rotate and become extinguished. In the contacts open position of the circuit breaker, the end portion (225) lies along the axis of the field coil (223). In an alternative construction, the end portion of the contact arm engages the arcing electrode when the contacts are in their closed position, and remains in such engagement for some time after the main body portion has disengaged from the main contact.

    Electrical switchgear
    6.
    发明公开
    Electrical switchgear 失效
    Elektrische Schaltanlage。

    公开(公告)号：EP0011972A2

    公开(公告)日：1980-06-11

    申请号：EP79302617.0

    申请日：1979-11-19

    申请人： South Wales Switchgear Limited

    发明人： Parry, John

    IPC分类号： H01H33/18 ,  H02B13/00

    CPC分类号： H01H33/187

    摘要： On opening of a circuit breaker, an end portion 19 of a pivotable contact arm 12 disengages from fixed contacts 7 such that an arc is drawn therebetween radially across the pole face of a field coil 9, the end portion 19 moving transversely to the field coil axis. The arc then transfers from the contacts 7 to a tubular electrode 24 thereby bringing the field coil 9 into circuit so that a magnetic field is generated which causes the arc to rotate and become extinguished. In the fully-open position of the circuit breaker, the end portion 19 lies along the field coil axis. The whole assembly is disposed in a housing 2 which contains the highly insulating gas sulphur hexafluoride. A single field coil and electrode can be shared between two such constructions. Arrangements are also disclosed (Figures 11 to 14) in which the initial arc is drawn directly between the contact arm 12 and the electrode 24.

    摘要翻译： 在断路器打开时，可枢转接触臂12的端部19与固定触头7脱离，使得弧线被横向拉过励磁线圈9的极面，其端部19横向于励磁线圈 轴。 然后，电弧从触头7转移到管状电极24，从而使励磁线圈9进入电路，从而产生使电弧旋转并熄灭的磁场。 在断路器的完全打开位置，端部19沿着励磁线圈轴线。 整个组件设置在包含高绝缘气体六氟化硫的壳体2中。 单个场线圈和电极可以在两个这样的结构之间共享。 还公开了其中初始电弧直接在接触臂12和电极24之间绘制的布置。

    Electrical switchgear
    8.
    发明公开
    Electrical switchgear 失效
    电气开关

    公开(公告)号：EP0012522A3

    公开(公告)日：1980-08-20

    申请号：EP79302618

    申请日：1979-11-19

    申请人： South Wales Switchgear Limited

    发明人： Parry, John

    IPC分类号： H01H33/18 ,  H02B13/00

    CPC分类号： H01H33/187

    摘要： A pair of switches 10a and 10b are disposed adjacent one another in a housing 11 which contains the highly insulating gas sulphur hexafluoride. In a closed position of each switch, a pivotable contact arm 15 engages fixed contact fingers 21 to permit the flow of load current therethrough. On opening of each switch, the contact arm 15 pivots away from the fingers 21 so that an arc is drawn therebetween, the arc subsequently being transferred from the fingers 21 to a tubular electrode 26. The arc current then flows through a field coil 22 connected in series with the electrode 26, such that a magnetic field is generated which causes the arc to rotate and become extinguished. The electrode 26 and field coil 22 are common to both switches 10a and 10b, the contact arms 15 of the latter being disposed respectively at opposite ends of the coil 22 and being isolated from each other by a transverse insulating member 29 disposed centrally in the electrode 26. The coil 22 is spirally wound so as to be symmetrical about a transverse plane through its centre, and therefore provides the same operating characteristics for each of the two switches 10a and 10b.