中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

27 records (took 0.024 seconds)

    METHOD OF PROTECTING POWER CABLE
    1.
    发明专利
    METHOD OF PROTECTING POWER CABLE 审中-公开

    公开(公告)号：JP2003116216A

    公开(公告)日：2003-04-18

    申请号：JP2001309402

    申请日：2001-10-05

    Applicant: ABB RESEARCH LTD

    Inventor： STANIMIROV MICHAEL ,  DECK BERNHARD ,  RUEEGG WALTER ,  WELTMANN KLAUS-DIETER ,  NIEMEYER LUTZ ,  PIETSCH RALF-DIETER

    IPC: H02H3/40

    Abstract: PROBLEM TO BE SOLVED: To provide a protective method for a power cable which can surely perform quick detection without accompanying complexity. SOLUTION: A current value ik and a voltage value uk for protecting the power cable 1 are measured. All values within a measuring window are analyzed using an adaptability estimator, and they are converted into an impedance value Z. If the impedance value is not an allowable value, the power cable 1 is cut off. When an alarm signal W is issued, each window is positioned so that the starting point accords with the time of the alarm signal, and/or each measuring window is shortened.

    4.
    发明专利
    未知

    公开(公告)号：DE19816506B4

    公开(公告)日：2008-04-30

    申请号：DE19816506

    申请日：1998-04-14

    Applicant: ABB RESEARCH LTD

    Inventor： SKINDHOJ JORGEN ,  BRUEHL BODO ,  KALTENEGGER KURT ,  MUELLER LORENZ ,  NIEMEYER LUTZ ,  SCHOENEMANN THOMAS ,  ZEHNDER LUKAS

    IPC: H01H9/30 ,  H01H33/91 ,  H01H33/04 ,  H01H33/70 ,  H01H39/00

    Abstract: The power switch comprises at least one burn-up switching arrangement which comprises two parts, and an arc chamber (5) between the switching parts. An exhaust (9) connects the arc chamber with an exhaust volume (8). At least one pressure chamber (6) is connected over the arc chamber with the exhaust. At least one explosive charge (10) is triggered at a switch-off, and is, at least partially converted into a gas. The power switch comprises at least one burn-up switching arrangement which comprises a first switching part and a second switching part, movable along a switching axis (2) between an on position, in which it touches the first switching part, and an off position, in which it is in a distance from it in axial direction, releasing an arc chamber (5) between the switching parts. At least one exhaust (9) connects the arc chamber with at least one exhaust volume (8). At least one pressure chamber (6) is connected over the arc chamber with the, at least one exhaust. At least one explosive charge (10) is triggered at a switch-off, and is, at least partially converted into an extinguishing gas current.

    5.
    发明专利
    未知

    公开(公告)号：DE19816506A1

    公开(公告)日：1999-10-21

    申请号：DE19816506

    申请日：1998-04-14

    Applicant: ABB RESEARCH LTD

    Inventor： SKINDHOJ JORGEN ,  BRUEHL BODO ,  KALTENEGGER KURT ,  MUELLER LORENZ ,  NIEMEYER LUTZ ,  SCHOENEMANN THOMAS ,  ZEHNDER LUKAS

    IPC: H01H33/91 ,  H01H33/70 ,  H01H39/00 ,  H01H9/30 ,  H01H33/00 ,  H01H85/18

    Abstract: The power switch comprises at least one burn-up switching arrangement which comprises two parts, and an arc chamber (5) between the switching parts. An exhaust (9) connects the arc chamber with an exhaust volume (8). At least one pressure chamber (6) is connected over the arc chamber with the exhaust. At least one explosive charge (10) is triggered at a switch-off, and is, at least partially converted into a gas. The power switch comprises at least one burn-up switching arrangement which comprises a first switching part and a second switching part, movable along a switching axis (2) between an on position, in which it touches the first switching part, and an off position, in which it is in a distance from it in axial direction, releasing an arc chamber (5) between the switching parts. At least one exhaust (9) connects the arc chamber with at least one exhaust volume (8). At least one pressure chamber (6) is connected over the arc chamber with the, at least one exhaust. At least one explosive charge (10) is triggered at a switch-off, and is, at least partially converted into an extinguishing gas current.

    CIRCUIT BREAKER
    6.
    发明专利
    CIRCUIT BREAKER 未知

    公开(公告)号：CA2172352A1

    公开(公告)日：1996-11-14

    申请号：CA2172352

    申请日：1996-03-21

    Applicant: ABB RESEARCH LTD

    Inventor： NIEMEYER LUTZ

    IPC: H01H33/18 ,  H01H33/70 ,  H01H33/72 ,  H01H33/74 ,  H01H33/98 ,  H01H71/00

    Abstract: This circuit breaker has a cylindrically designed arcing chamber (1), filled with an insulant medium, which has a power current path, arranged in an insulant housing (12) and stretched along a longitudinal axis (2), with a fixed contact arrangement (3) arranged in the power current path, and with a contact arrangement (5) having a moving contact cage (8), both the fixed contact arrangement (3) and the contact arrangement (5) each being provided with a fixed erosion-resistant covering (7, 10). In addition, a blast volume which accumulates the increased pressure of the insulant medium which occurs during a breaking process is provided. The invention is to provide a circuit breaker in which the contact erosion is reduced by simple means. This is achieved in that in the on position, the contact cage (8) surrounds a guide part (4) designed to be electrically insulant, and in that the insulant housing (12) has a shoulder (13) which projects into the region between a first covering (7) and a second covering (10), and in that the two erosion-resistant coverings (7, 10) are arranged concentrically around the region of the moving contact cage (8).

    10.
    发明专利
    未知

    公开(公告)号：DE19900666A1

    公开(公告)日：2000-07-13

    申请号：DE19900666

    申请日：1999-01-11

    Applicant: ABB RESEARCH LTD

    Inventor： NIEMEYER LUTZ

    IPC: H01H33/90 ,  H01H39/00 ,  H01H73/34

    Abstract: The switch has spaced stationary electrodes (E1,E2) and a cooperating bridging contact (2) which connects the electrodes in the closed switch position, with an explosive charge (4) generating the gas for extinction of the switching arc. the bridging contact is provided by a switch piston and an integral contact sleeve (2') having a gas exit opening (3) which is closed by the hollow stationary electrode (E2) in the closed switch position and which leads to a gas exit chamber (8) in the open switch position. An Independent claim for an application of a high-speed current breaker switch for use with a power switch is also included.

Patent Agency Ranking