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Interrupter inserts for circuit breaker installations

A technology of interrupters and circuit breakers, applied in the direction of high-voltage air circuit breakers, circuits, electrical components, etc.

Inactive Publication Date: 2016-03-30
ABB TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this generation technique requires manual fabrication to generate

Method used

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  • Interrupter inserts for circuit breaker installations
  • Interrupter inserts for circuit breaker installations
  • Interrupter inserts for circuit breaker installations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] according to figure 1 , the cylindrical insulating part of the vacuum interrupter insert is closed on both front ends by cover plates 2a and 2b, respectively. Two coaxially arranged contact pieces 3a and 3b are arranged inside the vacuum chamber of the interrupter insert. Corresponding switch contacts 4a and 4b are respectively arranged on the distal ends of the two electrical contact pieces 3a and 3b.

[0019] When the electrical switch is not operating, the two switch contacts are positioned at an axial distance from each other. In order to operate an electrical switch formed by the two contact pieces 3 a and 3 b , the contact piece 3 a is arranged axially displaceable relative to the insulating part 1 . In order to allow switching operation under vacuum conditions, the movable electrical contact 3 a is sealed by a bellows part 5 . The other electrical contact piece 3b is rigidly connected to the insulating part 1 .

[0020] The two electrical contact pieces 3 a a...

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PUM

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Abstract

Interrupter insert for a circuit breaker arrangement comprising a cylindrically shaped insulating part (1), within which a pair of corresponding electrical contact pieces (3a, 3b) are coaxially arranged and are concentrically surrounded by a shield (6) between the contact pieces (3a, 3b) at one side and an inner wall (7) of the insulating part (1) at the other side, wherein on both front ends of the shield (6) an annular gap (8a, 8b) to the inner wall (7) is provided, wherein each annular gap (8a; 8b) is at least partly filled with a brazing material (9) in order to permanently attach the shield (6) on both front ends to the inner wall (7) of the insulating part (1) by brazing to an inner oriented metallization or by direct active brazing to the ceramic body.

Description

technical field [0001] The present invention relates to an interrupter insert for a circuit breaker device comprising a cylindrical insulating part within which a pair of corresponding electrical contact members are coaxially arranged, said electrical contact members being held together by a shielding case. Surrounded by the heart, the shield is located between the contact piece and the inner wall of the insulating part, wherein the contact piece is located on one side of the shield, the inner wall of the insulating part is located on the other side of the shield, and the An annular gap is formed between the two front ends of the shield and the inner wall. [0002] This type of circuit breaker is widely used, especially for medium voltage applications with high current ratings ranging from 1 to 72kv. These circuit breakers interrupt the flow of electricity by creating and extinguishing an arc in a vacuum vessel. Modern vacuum circuit breakers tend to have a longer life expec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/662
CPCH01H33/66261H01H2033/66269H01H2033/66276
Inventor D·根奇
Owner ABB TECH AG