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Hybrid circuit breaker with improved current capacity per device size

A hybrid circuit breaker, current path technology, applied in the direction of protection, circuits, power transmission AC networks that react to overcurrents, etc.

Pending Publication Date: 2022-02-25
EATON INTELLIGENT POWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The problem of the invention is solved by a hybrid circuit breaker as defined in claim 1

Method used

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  • Hybrid circuit breaker with improved current capacity per device size
  • Hybrid circuit breaker with improved current capacity per device size
  • Hybrid circuit breaker with improved current capacity per device size

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Embodiment Construction

[0093] In general, the same or similar elements are denoted by the same / similar names and reference numerals. Features disclosed in the specification apply to elements having the same / similar names and reference numerals, respectively. Indications of orientation and relative position (up, down, sideways, etc.) are relative to the associated drawing and indications of orientation and / or relative position must be changed accordingly from drawing to drawing as the case may be.

[0094] figure 1 An exemplary hybrid circuit breaker 1 is shown comprising two input connectors 2a, 2b for the grid, two output connectors 3a, 3b for the load and current paths 4a, 4b, each connecting an input Connectors 2a, 2b and output connectors 3a, 3b. Furthermore, the hybrid circuit breaker 1 comprises an electromechanical bypass switch S1 in the current path 4a and a semiconductor circuit 5 connected in parallel with the electromechanical bypass switch S1. exist figure 1 In the example of , the ...

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Abstract

A hybrid circuit breaker (1) is disclosed, which comprises an electro-mechanical bypass switch (S1), a semiconductor circuit (5) in parallel with the electro-mechanical bypass switch (S1) and a control unit (CTRL) being capable of controlling a commutation from a current path (4a, 4b), in which the electro-mechanical bypass switch (S1) is arranged, to the semiconductor circuit (5) in case of the electro- mechanical bypass switch (S1) is opened. Furthermore, the hybrid circuit breaker (1) comprises an active cooling device (F, 17) in the vicinity of the electro-mechanical bypass switch (S1), which is adopted to cool movable parts (12, 15) of the electro- mechanical bypass switch (S1). Moreover, a method of operating a hybrid circuit breaker (1) of said kind and a type series of hybrid circuit breakers (1) having a different nominal current capacity and / or different current-time characteristics are disclosed.

Description

technical field [0001] The present invention relates to a hybrid circuit breaker comprising at least two input connectors for receiving power from a grid, at least two output connectors for transmitting power to a load and a current connecting the input and output connectors respectively path. Furthermore, the hybrid circuit breaker comprises a (high-speed) electromechanical bypass switch in at least one current path and a (power) semiconductor circuit connected in parallel with the electromechanical bypass switch. In particular, the semiconductor circuit can be embodied as a bidirectional power semiconductor circuit. The control unit of the hybrid circuit breaker is able to control the commutation from the current path in which the organic bypass switch is arranged to the semiconductor circuit via the electromechanical bypass switch in case of switching operation (for example, at rated current, fault current or overcurrent) . In particular, current commutation is accomplis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/08H02H7/22H02J3/36H01H1/62H01H9/52
CPCH02H3/08H01H1/62H01H9/52H02H7/222H02J3/36H01H9/542H01H2009/546H01H9/547
Inventor K·阿斯坎
Owner EATON INTELLIGENT POWER LTD