Interlock device and electrical cabinet including the same

A technology for interlocking devices and electrical cabinets, which can be applied to electrical components, horizontally pulling and isolating switch devices, circuits, etc., and can solve problems such as insulation problems.

Active Publication Date: 2016-05-04
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main disadvantage of these units is that they penetrate into the cable box, thus creating insulation problems

Method used

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  • Interlock device and electrical cabinet including the same
  • Interlock device and electrical cabinet including the same
  • Interlock device and electrical cabinet including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] exist figure 1 In, a medium voltage electrical cabinet C can be seen electrically connected to the high voltage power system R on the line side and to cables c on the load side, said cabinet comprising electrical switching equipment such as switches or circuit breakers connected in series with the grounding device 2 1, the switchgear is connected to the high voltage power system on the line side, to the grounding device on the load side, the grounding device is connected to the cable box 3 on the load side, and the door 4 can be accessed by means of a door.

[0037] exist Figure 2-8 , the cabinet comprises, in a known manner, a support 5, called a first support, onto which a pole shaft 6 is rotatably fitted, via which the contacts of the switchgear can be closed or opened; and Belonging to the shaft 7 of the grounding device, said shaft can be operated by the operator between two positions for respectively grounding the cable or connecting the cable to the line.

[0...

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PUM

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Abstract

The device has a case (11) housing a lock (12) and a reversing lever (13). The case is fixed on an inner face of a lateral wall (21) of a cable box (3). The lock cooperates with a door (4) and a door locking rod (17) controlled by a shaft (7) of a grounding device, so that the control of the grounding of cables drives the unlocking of the door. The lever cooperates with the door and a selector locking rod (24), so as to prevent movement of a selector (8) toward a position allowing opening or closing of a switching device i.e. switch, of an electric cell, when the door is not closed.

Description

technical field [0001] The invention relates to an interlocking device for safe access to a cable box of an electrical cabinet comprising at least one electrical switchgear in series with a grounding arrangement for cables, the electrical cabinet being connected on the line side to a power system and on the load side Connect to at least one cable. The cables are contained in a cable box comprising a rear panel, a bottom panel, a top panel separating the cable box from a compartment housing switchgear and earthing devices, two side panels and a door, the interlocking means Including means for allowing the said door to be opened only if the earthing of the cable is active, means for preventing the switchgear from closing as long as the door is not present and locked, and means for allowing the earthing device to be connected to the line again when the door is open but means for preventing switchgear from closing when said door is open, said electrical cabinet including a select...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/20H02G3/08
CPCH01H9/26H01H9/22H02B11/12
Inventor P.马奎特
Owner SCHNEIDER ELECTRIC IND SAS
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