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    41.
    发明专利
    未知

    公开(公告)号：NO20010426D0

    公开(公告)日：2001-01-24

    申请号：NO20010426

    申请日：2001-01-24

    Applicant: ABB RESEARCH LTD

    Inventor： GLATZ-REICHENBACH JOACHIM ,  STRUEMPLER RALF

    IPC: H01C7/02 ,  H01H

    Abstract: The invention relates to an electrical device with a PTC polymer element having a constriction. The constriction defines a web extending in a main current direction over a length longer than in the prior art, namely longer than 5 mm, preferably longer than 15 mm. Further, the aperture angle of the PTC polymer material at the ends of the web is larger than 100 DEG . A preferred choice of material is given, further. The invention achieves very high voltage-withstand capabilities.

    46.
    发明专利
    未知

    公开(公告)号：DE19824851A1

    公开(公告)日：1999-12-09

    申请号：DE19824851

    申请日：1998-06-04

    Applicant: ABB RESEARCH LTD

    Inventor： SKINDHOJ JORGEN ,  GLATZ-REICHENBACH JOACHIM ,  STRUEMPLER RALF ,  GREUTER FELIX

    IPC: H01H85/042 ,  H01H85/055 ,  H01H85/06 ,  H01H85/18 ,  H01H85/04

    Abstract: In order to ensure that the current path is interrupted along the entire length of fusible cut-out elements (4a,4b) in a reliable manner, said elements are provided with burn-up bodies that are arranged at a distance on a strip (5) that is made from an electroconductive material in capsules (8), whereby said bodies are connected by means of a continuous igniter wire (9) and ignition of one burn-up body triggers ignition of the rest. The burn-up bodies can be placed in a recess in the central support body, over which the strip (5) runs. Said burn-up bodies contain an explosive material with an ignition temperature of 245 DEG C. During burn-up, the explosive material gives off 480 J/g of energy, whereby a temperature of approximately 2,000 DEG C is reached and conversion into quenching gas, essentially nitrogen, occurs.

    48.
    发明专利
    未知

    公开(公告)号：AT503259T

    公开(公告)日：2011-04-15

    申请号：AT05804329

    申请日：2005-11-28

    Applicant: ABB RESEARCH LTD

    Inventor： KOTILAINEN SAMI ,  FABIAN JAN-HENNING ,  STRUEMPLER RALF

    IPC: H01H1/00 ,  H01H59/00

    Abstract: An actuator comprising a movable electrode and a static electrode is disclosed. An exemplary actuator is actuateable using an electrical potential difference that is applied between the movable electrode and the static electrode. The actuator comprises static bridge contacts with conductive surfaces, and a contact area with a conductive surface facing said bridge contacts located on the movable electrode. An electrically conductive contact is established between the bridge contacts, when the movable electrode contacts the static electrode. The movable electrode comprises at least two elements, a first element and a second element. The second element is movable with respect to the first element.

    Zarízení pro omezování elektrického proudu
    49.
    发明专利
    Zarízení pro omezování elektrického proudu 未知

    公开(公告)号：CZ301948B6

    公开(公告)日：2010-08-11

    申请号：CZ2001574

    申请日：2000-06-13

    Applicant: ABB RESEARCH LTD

    Inventor： RAJALA ERKKI ,  STRUEMPLER RALF ,  GLATZ-REICHENBACH JOACHIM ,  JOKINIEMI TIMO

    IPC: H02H3/04 ,  H02H9/02

    Abstract: Zarízení pro omezování elektrického proudu v elektrickém vedení (L.sub.1.n., L.sub.2.n., L.sub.3.n.) obsahuje PTC rezistor (PTC1, PTC2, PTC3) pro udávání strídave stavu vysokého a nízkého odporu ve vedení (L.sub.1.n., L.sub.2.n., L.sub.3.n.), kontrolní obvod (1) pro detekování zmeny ze stavu nízkého odporu do stavu vysokého odporu, a pro vytvárení signálu v prípade stavu vysokého odporu, spínac (13), usporádaný ve vedení (L.sub.1.n., L.sub.2.n., L.sub.3.n.) a sériove zapojený s PTC rezistorem (PTC1, PTC2, PTC3) pro prerušování elektrického proudu ve vedení (L.sub.1.n., L.sub.2.n., L.sub.3.n.), omezovaného PTC rezistorem (PTC1, PTC2, PTC3) v odezve na signál stavu vysokého odporu. Kontrolní obvod (1) je usporádán pro detekování stavu odporu po urcený casový interval po zmene odporu, a pro vytvárení signálu pouze tehdy, pokud stav vysokého odporu trvá po dobu tohoto casového intervalu. Zarízení je usporádáno pro otevírání spínace (13) v prípade vysokých nadproudu a dále obsahuje stykac (17) pro otevírání spínace (13) v prípade malých nadproudu.

    50.
    发明专利
    未知

    公开(公告)号：AT431636T

    公开(公告)日：2009-05-15

    申请号：AT00938431

    申请日：2000-06-13

    Applicant: ABB RESEARCH LTD

    Inventor： RAJALA ERKKI ,  JOKINIEMI TIMO ,  STRUEMPLER RALF

    IPC: H02H3/04 ,  H02H9/02

    Abstract: The invention relats to an electrical monitor circuit in which star points of taps on a first and a second side of a three-phase current limiting device are voltage compared. Possible applications are combinations with electrical switches, especially for power suppying and protecting circuits for electrical motors.

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