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Pluggable electrical device for switching current with improved backplane

A technology for electrical devices and switching currents, applied in the setting of switchgear with resin shells, coupling devices, electrical components, etc., can solve problems such as technical limitations, large static frame, high unit cost of backplanes, etc., and achieve good mechanical strength , the effect of reduced volume and large degrees of freedom

Active Publication Date: 2020-11-03
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, this known prior art backplane is not entirely satisfactory
The pultrusion manufacturing process has the disadvantage of being difficult to implement and has technical limitations
Consequently, the backplane obtained has high unit cost and considerable thickness, which means that the static frame is larger than it needs to be, and therefore the volume of the electrical installation is also

Method used

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  • Pluggable electrical device for switching current with improved backplane
  • Pluggable electrical device for switching current with improved backplane
  • Pluggable electrical device for switching current with improved backplane

Examples

Experimental program
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Embodiment Construction

[0033] figure 1 and figure 2 A pluggable electrical device 2 for switching current is shown. The electric device 2 is configured to interrupt electric current in response to abnormal operation or a predetermined command. For example, the electrical device 2 is a circuit breaker or a disconnector.

[0034] In this example, the electrical device 2 is a low voltage AC air circuit breaker, for example for a voltage higher than or equal to 440V and a current higher than 630A. The breaking power of the short-circuit circuit of this circuit breaker is 150kA at 440V. The electrical device 2 is here multi-pole, ie it can be operated with multi-phase electrical systems, for example electrical systems with three or four poles. As a variant, the circuit breaker is a DC circuit breaker.

[0035] The electrical device 2 comprises a static frame 3 and removable parts not shown.

[0036] The frame 3 includes a front 4 , a back 6 and sides 8 and 10 . In this example, the shape of the f...

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PUM

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Abstract

A pluggable electrical device (2) for switching electrical currents, comprising: a static frame (3) comprising a rigid back plate (20) fastened to the frame; connection terminals (24) capable of being connected to electrical equipment; and comprising A removable part of a device used to switch electrical current. The back plate (20) is made of a thermosetting polymer and includes reinforcing beams (24, 26) integrated into the back plate (20) and extending in a vertical direction (Z26, Z28).

Description

technical field [0001] The present invention relates to a pluggable electrical device for switching current with an improved backplane. Background technique [0002] Electrical devices for switching electrical currents, such as circuit breakers or disconnectors, are known to comprise a static frame (i.e. a fixed rack) capable of being installed in a switchboard and a removable section, also known as a "disconnect unit". The removable portion is movable relative to the frame between inserted and extracted positions. Such electrical devices are also considered pluggable. [0003] In the inserted position, the removable part is received inside the housing of the static frame provided for this purpose, allowing the electrical switching device to be electrically connected to the connection terminals of the electrical equipment connected to the frame. In the extracted position, the removable portion is at least partially removed from the housing of the frame. After that, the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K7/14
CPCH05K7/1438H05K7/1452H02B11/04H01H9/025H02B13/01H01R13/05H01R33/955H02B11/02
Inventor M.玛丽E.皮尼罗B.贾科林
Owner SCHNEIDER ELECTRIC IND SAS