公开(公告)号：JPH11329192A

公开(公告)日：1999-11-30

申请号：JP10683399

申请日：1999-04-14

Applicant: ABB RESEARCH LTD

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

IPC: H01H33/91 ,  H01H33/70 ,  H01H39/00

Abstract: PROBLEM TO BE SOLVED: To expose an arc to a strong arc-extinguishing gas flow. SOLUTION: An arc chamber 5 is formed between a fixed contact tulip 1 and a sliding tulip 4. An opening and closing pin 3 movable at a connected position is placed in the arc chamber. The opening and closing pin is plugged in an exhaust outlet 9 surrounded by the sliding tulip 4, and in a spray opening 7 surrounded by the contact tulip 1. The spray opening connects the arc chamber 5 to a pressure chamber 6. The arc chamber 5 is surrounded by a circular heating chamber 13. Plural loading materials 10 for an explosive are provided in the pressure chamber 6. The loading materials are mostly converted into arc-extinguishing gas, nitrogen in particular within about 10-30 ms after ignited. In this case, the gas pressure moves the opening and closing pin 3 toward an interruption position. The gas is sprayed to an arc generated between the opening and closing pin 3 and the contact tulip 1 after the spray opening 7 and the exhaust outlet 9 are opened.

公开(公告)号：DE59913448D1

公开(公告)日：2006-06-29

申请号：DE59913448

申请日：1999-03-18

Applicant: ABB RESEARCH LTD

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

IPC: H01H33/91 ,  H01H39/00 ,  H01H33/70

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.

公开(公告)号：DE19612841A1

公开(公告)日：1997-10-02

申请号：DE19612841

申请日：1996-03-30

Applicant: ABB RESEARCH LTD

Inventor： GLATZ-REICHENBACH JOACHIM DR ,  GREUTER FELIX DR ,  MAUTHE GERHARD ,  PELANEK ZDENEK ,  SCHUELER CLAUS DR ,  SKINDHOJ JORGEN DR ,  STRUEMPLER RALF DR

IPC: H01C1/14 ,  H01C7/02 ,  H01C7/12 ,  H01C7/13 ,  H01C13/02 ,  H01C7/10

Abstract: The resistance has a pair of parallel terminal electrodes (1,2) in flat contact with a resistance body (3) which has a positive temperature coefficient characteristic. A varistor (40) lies in electrical contact with the resistance body which has 2 contact surfaces (50,51). The response point (60) of the resistance body is connected in parallel with the varistor through the surfaces. A number of series connected varistors (41,42,43,44) may contact respective meanders of a zigzag resistance body between the parallel terminal electrodes via respective contact surfaces (52,53).

公开(公告)号：EP0798750A3

公开(公告)日：1998-12-02

申请号：EP97810116

申请日：1997-03-03

Applicant: ABB RESEARCH LTD

Inventor： GLATZ-REICHENBACH DR ,  GREUTER FELIX DR ,  MAUTHE GERHARD ,  PELANEK ZDENEK ,  SCHUELER CLAUS DR ,  SKINDHOJ JORGEN DR ,  STRUEMPLER RALF DR

IPC: H01C1/14 ,  H01C7/02 ,  H01C7/12 ,  H01C7/13 ,  H01C13/02

CPC classification number: H01C7/13 ,  H01C1/1406 ,  H01C7/027 ,  H01C7/12 ,  H01C13/02

Abstract: Der strombegrenzender Widerstand weist zwei parallel zueinander angeordneten Anschlusselektroden (1, 2) auf sowie einen mit den Anschlusselektroden (1, 2) flächenhaft kontaktierten und PTC-Verhalten aufweisenden Widerstandskörper (3). Mit dem Widerstandskörper (3) in elektrisch leitendem Kontakt befindet sich ein Varistor (40). Der Widerstandskörper (3) enthält zwei Kontaktflächen (50, 51) sowie eine Ansprechstelle (60), welche über beiden Kontaktflächen (50, 51) parallel zum Varistor (40) geschaltet ist und oberhalb eines Schwellwertes eines durch den Widerstand fliessenden Stroms einen PTC-Übergang ausführt.
Da bei diesem Widerstand der Widerstandskörper den elektrischen Kontakt zum Varistor (40) bewirkt, werden für den Varistor keine metallenen Anschlusselektroden benötigt. Zugleich wird durch die Verlagerung der Ansprechstelle (60) von Varistor (40) weg nach aussen die Betriebssicherheit des Widerstands erheblich verbessert.
Durch eine Reihenschaltung mehrerer in einem mäanderförmig oder anderweitig kontinuierlich ausgebildeten Widerstandskörper (3) vorgesehener Varistoren (40, 41, ..) kann eine wirkungsvolle Strombegrenzung in Lastkreisen erreicht werden, welche mit hoher Spannung betrieben werden.

Abstract translation: 该电阻具有与具有正温度系数特性的电阻体（3）平坦接触的一对平行端子电极（1,2）。 变阻器（40）与具有2个接触表面（50,51）的电阻体电接触。 电阻体的响应点（60）通过表面与压敏电阻并联连接。 多个串联连接的压敏电阻（41,42,43,44）可以通过相应的接触表面（52,53）与平行端子电极之间的锯齿形电阻体的相应曲折接触。