Multi-block hybrid vacuum circuit breaker having in series connected vacuum interrupters

A technology of vacuum circuit breaker and vacuum interrupter, which is applied in high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve problems such as unbalanced voltage distribution

Active Publication Date: 2015-07-01
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when designing a circuit breaker with vacuum interrupters in series, one must consider the unevenness of the voltage distribution

Method used

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  • Multi-block hybrid vacuum circuit breaker having in series connected vacuum interrupters
  • Multi-block hybrid vacuum circuit breaker having in series connected vacuum interrupters
  • Multi-block hybrid vacuum circuit breaker having in series connected vacuum interrupters

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Embodiment Construction

[0026] figure 1 shows a multi-block hybrid vacuum circuit breaker 1 according to the invention, comprising two blocks 2a and 2b each having a vacuum interrupter 3a and 3b and a diode 7a and 7b. The vacuum interrupters 3a and 3b respectively have vacuum switch chambers 4a and 4b, the vacuum switch chambers 4a and 4b respectively include fixed electrical contacts 5a and 5b and axially movable electrical contacts 6a and 6b, the axially movable electrical contacts The contacts 6a and 6b are able to translate for switching purposes. The electrical contacts 5 a , 6 a and 5 b , 6 b are arranged coaxially with each other and are held in contact position by several spring elements 14 . The diodes 7a and 7b are connected back-to-back, wherein the intermediate junction is connected via a mechanical switch 8 to the intermediate junction of the two vacuum interrupters 3a and 3b. A mechanical switch 8 is arranged between the two vacuum interrupters 3a, 3b and the diodes 7a, 7b arranged b...

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Abstract

The invention relates to a multi-block hybrid vacuum circuit breaker (1) comprising at least two blocks (2) with at least one semiconductor component and one vacuum interrupter (3) comprising a vacuum switching chamber (4) for accommodating a pair of electrical contacts comprising a fixed electrical contact (5) and a axial movable electrical contact (6), which can be moved in translation for switching purpose, wherein the at least one semiconductor component is connected in parallel to the vacuum interrupter (3).

Description

technical field [0001] The invention relates to a multi-block hybrid vacuum circuit breaker comprising at least two blocks with at least one semiconductor element and a vacuum interrupter, the vacuum interrupter including a vacuum switch chamber for housing a pair of electrical contacts including fixed electrical contacts and axially movable electrical contacts capable of translating for switching purposes . Background technique [0002] Vacuum interrupters are used for short-circuit interruption and also for load current switching. In order to protect the electrical circuit from overcurrents, a circuit breaker is provided which is triggered and opens in the event of a fault, thereby interrupting the main current path in the electrical circuit. Circuit breakers are usually provided as mechanical switches. Such mechanical switches typically have at least two electrical contacts that are initially pressed against each other, conducting electrical current during normal opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/54H01H33/666
CPCH01H2033/6668H01H9/547H01H33/6661H01H2009/546H01H33/6647
Inventor D·根奇T·拉马拉
Owner ABB (SCHWEIZ) AG
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