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High-speed circuit breakers for industrial and railway applications

A technology for high-speed circuit breaking and industrial application, which is applied in the direction of high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., and can solve problems such as accelerating the interruption time

Active Publication Date: 2021-09-14
迈科伊莱翠卡赛提飞卡股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, this solution has limitations depending on the voltage applied to such a coil, and this speeds up the interruption time more or less

Method used

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  • High-speed circuit breakers for industrial and railway applications
  • High-speed circuit breakers for industrial and railway applications
  • High-speed circuit breakers for industrial and railway applications

Examples

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Embodiment Construction

[0048] Referring to the accompanying drawings, reference number 1 schematically shows a high-speed circuit breaker realized according to the present invention as a whole.

[0049] The circuit breaker 1 has a substantially square parallelepiped shape with a base and a top, two main sides and two thickness sides.

[0050] The circuit breaker 1 is especially used in industrial or railway applications where high DC currents have to be interrupted with high efficiency and extremely fast intervention times.

[0051] For example, the circuit breaker 1 of the invention is configured for use on electrical equipment operating in the presence of severe overcurrent or overvoltage or short circuits that may occur in substations of subway lines.

[0052]However, the use of such a circuit breaker 1 is not excluded in all applications in which high DC currents have to be interrupted as quickly as possible, for example in railway stations, on trains or in factories.

[0053] Just to give an i...

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PUM

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Abstract

The present invention relates to an improved high-speed circuit breaker (1) for industrial or railway applications where high DC currents must be interrupted with high efficiency and extremely fast intervention times. The circuit breaker (1) comprises a base part (2) located in a housing (10), which supports: - an activation mechanism (3) for the switching device, comprising a holding mechanism (20, 21) and a release mechanism ( 40); - the middle switching or breaking contact part (4), which includes the fixed contact (5) and the movable contact (6); and - covering the top of said switching or breaking contact part (4) The arc extinguishing part (7) of the arc extinguishing chamber is characterized in that it includes: a middle delimiting part (16, 18), which is arranged on both sides of the housing (10) to laterally delimit the middle switching or disconnecting The contact part (4) and provides lateral guides for the arc extinguishing part (7) of the arc extinguishing chamber; wherein the arc extinguishing part (7) of the arc extinguishing chamber is slidably installed in the housing (10); wherein, At least one lever (25) mechanism extends transversely between the opposed intermediate delimiting portions (16, 18) for moving or lifting the arc extinguishing portion (7) of the arc chute during inspection.

Description

technical field [0001] The present invention relates to an improved high speed circuit breaker for industrial and railway applications. [0002] More particularly but not exclusively, the present invention relates to a high-speed circuit breaker for industrial or railway applications where high DC currents must be interrupted with high efficiency and extremely fast intervention times. Background technique [0003] As is well known in this specific technical field, a circuit breaker is an automatically operated electrical switch designed to protect electrical circuits from damage caused by overcurrent or overload or short circuits. Its basic function is to interrupt the current flow after a fault is detected by the protective relay. [0004] High Speed ​​Circuit Breakers (HSCBs) are single pole circuit breakers designed for use in high energy and high reliability DC power distribution systems. These circuit breakers are used in a variety of applications to protect equipment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/34H01H33/59H01H9/38
CPCH01H9/345H01H9/38H01H33/596H01H9/34H01H9/346H01H33/08
Inventor C·蒙代利尼M·科尔纳L·斯滕达尔迪
Owner 迈科伊莱翠卡赛提飞卡股份公司