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：JPH10172400A

公开(公告)日：1998-06-26

申请号：JP30208897

申请日：1997-11-04

Applicant: ABB RESEARCH LTD

Inventor： ZEHNDER LUKAS DR ,  KALTENEGGER KURT DR ,  MUELLER LORENZ DR ,  NIEMEYER LUTZ DR

IPC: C08K7/00 ,  C08L101/00 ,  H01H33/70 ,  H01H33/78

Abstract: PROBLEM TO BE SOLVED: To provide a power breaker in which during breaking an insulating nozzle generates gas, which effectively assists the generation of blow-off pressure inside an arc region. SOLUTION: A power breaker includes a contact structure having a plurality of burning-resistant switching pieces. The contact structure includes a fixed switching piece 3, a switching piece 4 movable along a central axis 2, and an insulating nozzle 6 surrounding the switching pieces 3. 4 concentrically. The insulating nozzle 6 has a constricted part 7 and is manufactured from a burning-resistant synthetic resin. The insulating nozzle 6 is so formed that a burning groove 10 formed extends perpendicular to the direction of electric field load.

公开(公告)号：JPH10172401A

公开(公告)日：1998-06-26

申请号：JP30208997

申请日：1997-11-04

Applicant: ABB RESEARCH LTD

Inventor： ZEHNDER LUKAS DR ,  KALTENEGGER KURT DR ,  MUELLER LORENZ DR ,  NIEMEYER LUTZ DR

IPC: C08K3/00 ,  C08L101/00 ,  H01H33/70

Abstract: PROBLEM TO BE SOLVED: To provide a power circuit breaker which prevents generation of hydrocarbon and accumulation thereof at an undesirable location. SOLUTION: A power circuit breaker is provided with a contact structure having a plurality of change-over pieces of a burning durability. This contact structure is provided with fixed change-over pieces 3, a movable change-over piece 4 along a center axis 2 and an insulated nozzle 6 surrounding these change-over pieces 3, 4 concentrically. This nozzle 6 has a constricted part 7, and made from a resin of a burning durability. In the resin of a burring durability, at least one oxidizing filler is mixed, which chemically combines with hydrocarbon.

公开(公告)号：DE19645525A1

公开(公告)日：1998-05-07

申请号：DE19645525

申请日：1996-11-05

Applicant: ABB RESEARCH LTD

Inventor： ZEHNDER LUKAS DR ,  KALTENEGGER KURT DR ,  MUELLER LORENZ DR ,  NIEMEYER LUTZ DR

IPC: C08K3/00 ,  C08L101/00 ,  H01H33/70 ,  H01H33/72 ,  H01B3/30

公开(公告)号：DE19645524A1

公开(公告)日：1998-05-07

申请号：DE19645524

申请日：1996-11-05

Applicant: ABB RESEARCH LTD

Inventor： ZEHNDER LUKAS DR ,  KALTENEGGER KURT DR ,  MUELLER LORENZ DR ,  NIEMEYER LUTZ DR

IPC: C08K7/00 ,  C08L101/00 ,  H01H33/70 ,  H01H33/78 ,  H01H33/72 ,  H01H33/76

Abstract: The circuit breaker has a contact arrangement provided with switch members which cannot be burned away. The contact arrangement has a stationary switch member (3) and a switch member (4) which is movable along a central axis (2). It also has an insulating sleeve (6) which concentrically surrounds the switch members (3,4). The insulating sleeve(6) has a narrowed portion (7). The insulating sleeve (6) is structured such that resulting burn out channels (10) run perpendicular to the direction of the electric field force. The plastic is preferably an aliphatic polymer or an aromatic polymer. The aliphatic polymer and/or the aromatic polymer may be a polyamide or polyimide or polysulphate or polyphenylsulphate or a similar polymer or mixture of these.

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.