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Switching device for low voltage systems

A low-voltage system and equipment technology, applied in the field of switchgear, can solve the problems of complicated auxiliary equipment and shell structure, damage to auxiliary equipment, etc.

Active Publication Date: 2013-10-16
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both possibilities are disadvantageous as they involve a longer extraction process and obviously complicate the construction of the attachment and the housing
In addition, improper use of keys or other equivalent extraction devices may damage accessory equipment installed in the switch

Method used

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  • Switching device for low voltage systems
  • Switching device for low voltage systems
  • Switching device for low voltage systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] With reference to the cited figures, the single-pole or multi-pole switching device 1 comprises a housing 9 containing at least one pair of contacts which are mutually coupled / decoupled. More specifically, the switching device 1 comprises one stationary contact and at least one moving contact provided for each pole. The contacts can be coupled / decoupled to one another at the level of the disconnection chamber inside the housing 9 . In the embodiment shown in the cited figures, the switchgear 1 is configured to actuate double opening. To this end, for each pole provided, the switchgear 1 comprises a pair of first contacts and a pair of second contacts ( see Figure 8 ).

[0037] However, it should be understood that the technical solutions described below are applicable to any type of switchgear, and the expression includes automatic switches, contactors and / or disconnectors. In the following, the expression "switch 1" is used in addition to the expression "switching...

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PUM

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Abstract

The present invention relates to a switching device for low voltage systems comprising one or more accessory devices. The switching device according to the invention comprises a case containing at least one pair of contacts that can be reciprocally coupled / decoupled. The device furthermore comprises a containment structure to contain at least one accessory device of the switching device. Said structure is provided with means for interfacing with the accessory device which comprises a body that can be inserted in the containment structure. The accessory device also comprises coupling means to couple it to the containment structure and operating means which interact with the switching device via the interface means of the containment structure. The accessory device is also provided with disengagement means operatively connected to the coupling means. Said disengagement means, once activated, free the coupling means to permit extraction of the accessory device from the containment structure.

Description

technical field [0001] The invention relates to a switchgear for a low voltage system comprising one or more auxiliary equipment. Background technique [0002] Low voltage switchgear (i.e. applications operating at voltages up to 1000VAC / 1500VDC), such as automatic switches, disconnectors and contactors, are known generally as switchgear and hereafter referred to as switches for brevity, and are designed to allow The electrical system and specific components of the installed load operate correctly. Automatic switches, for example, ensure that the required nominal current can flow to various utilities, permit proper connection and disconnection of loads to and from circuits, and automatically disconnect protected circuits with respect to the electrical source. A device that recognizes a malfunction of a specific system branch and thus intervenes by opening at least one of the switches in the circuit is usually called a protection unit. The most common types of protection un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/46
CPCH01H71/465H01H9/0066
Inventor E·斯科拉L·A·德利·因诺琴蒂
Owner ABB (SCHWEIZ) AG