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Cooling device for a circuit breaker and circuit breaker comprising such device

A technology of cooling device and circuit breaker, which is applied in the cooling/ventilation of substation/switchgear, board/panel/desk of substation/switchgear, emergency protection device, etc., which can solve the problem of short life of circuit breaker

Active Publication Date: 2010-12-01
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Therefore, in addition to the constraints related to derating, it is desirable to maintain the operating temperature of the circuit breaker at a low level; in fact, it is well known that the higher the operating temperature, the shorter the life of the circuit breaker (or its more sensitive components)

Method used

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  • Cooling device for a circuit breaker and circuit breaker comprising such device
  • Cooling device for a circuit breaker and circuit breaker comprising such device
  • Cooling device for a circuit breaker and circuit breaker comprising such device

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Embodiment Construction

[0023] exist Figure 1-4 A circuit breaker 100, such as a low-voltage circuit breaker, is shown from the rear, comprising a housing made of a single piece or assembled together of multiple elements, the housing having a front wall 1, a rear wall 2, an upper Wall 3 , lower wall 4 , and two side walls 5 and 6 .

[0024] According to embodiments known in the art, and therefore not described in detail here, a disconnect portion of the circuit breaker is accommodated inside the housing, the disconnect portion typically comprising each of the circuits for which the circuit breaker is embedded. The arc-extinguishing chamber of each pole or each phase is provided with a pair of electrical contacts coupled / separated from each other in the arc-extinguishing chamber; in addition, the circuit breaker 100 can be implemented as a fixed type, that is, in one piece, or as a drawer type or movable A disconnect (plug-in) type, in which the part (of the type shown in the figures) containing the...

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PUM

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Abstract

A cooling device for a circuit breaker which comprises a case having a front wall, a rear wall, an upper wall, a lower wall, two flanks, and a first series of side-by-side terminals and a second series of side-by-side terminals that protrude outside from the case for the connection of the circuit breaker with an electrical circuit. The cooling device includes at least one first body made of a thermal conducting material and which has a central portion suitable for being positioned transversally along and facing the first series of terminals so as to absorb heat generated at the first series of terminals, and a first end portion and a second end portion that protrude from the central portion and are configured so as to receive the heat absorbed by the central portion and to diffuse it outside the cooling device itself.

Description

technical field [0001] The present invention relates to a cooling device for a circuit breaker, a circuit breaker including the cooling device, and a switchboard including the circuit breaker. Background technique [0002] Known, low voltage circuit breakers (for applications rated up to 1000 VAC / 1500 VDC), such as automatic circuit breakers, disconnectors, and contactors, are commonly referred to as "switching gear" and hereinafter collectively as circuit breakers , is a device designed to enable the correct operation of a specific part of an electrical system and the installed load. [0003] Such devices are often installed inside switchboards located in electrical systems. The switchboard includes suitable cells or cabinets arranged to connect the devices and electrical power distribution lines. Distribution lines generally consist of conductor systems such as bus bars and / or cables. In addition to improving the practicability, ergonomics, and aesthetics of the system,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/52H01H71/02H01H71/08H02B1/04H02B1/56
CPCH01H2009/523H02B1/56H02B11/04H01H9/52
Inventor 马里奥·博尔托利阿莱西奥·贝尔加米尼布鲁诺·阿戈斯蒂尼弗朗切斯科·阿戈斯蒂尼丹尼尔·沙尔图尼蒂洛·比勒
Owner ABB (SCHWEIZ) AG
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