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Interlocking device and switchgear with the same

A technology of interlocking device and grounding switch, which is applied in the direction of electric switch, substation/power distribution device casing, electrical components, etc., and can solve the problems of large number of parts, high cost, and complex structure

Active Publication Date: 2022-07-12
EATON ELECTRICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this link mechanism is that the structure is complex, the number of parts is large, the cost is high, and there is a risk that the cable compartment door can be opened before the grounding switch reaches the closing position during operation.

Method used

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  • Interlocking device and switchgear with the same
  • Interlocking device and switchgear with the same
  • Interlocking device and switchgear with the same

Examples

Experimental program
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Embodiment Construction

[0078] Referring now to the accompanying drawings, the schematic scheme of the device disclosed in the present invention will be described in detail. Although the drawings are provided to present some embodiments of the present invention, the drawings are not necessarily to scale of specific embodiments and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the present invention. public content. Some components in the drawings can be adjusted in position according to actual needs without affecting the technical effect. Appearances of the phrase "in the drawings" or similar expressions in the specification do not necessarily refer to all drawings or examples.

[0079] Certain directional terms used hereinafter to describe the drawings, such as "inside", "outside", "above", "below" and other directional terms, will be understood to have their normal meanings and refer to the normal view of the drawings. those directions involv...

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PUM

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Abstract

The present invention relates to an interlock device and a switch cabinet having the interlock device. An interlocking device is used between the movable door and the earthing switch, comprising a bracket; a transmission mechanism mounted on the bracket and adapted to be driven by the earthing switch, the transmission mechanism comprising an output driven by means of its own teeth a locking member, which is fixed on the output end immovably relative to the output end, the locking member is adapted to move to form a part of the locking member with the movable door after the grounding switch is opened a latch that prevents door opening and moves to allow the part to clear the movable door after the grounding switch is closed to allow door opening; and a stop structure adapted to be provided on the bracket or the movable door After the movable door is opened, it forms a stop cooperation with the locking member to prevent closing.

Description

technical field [0001] The invention relates to the technical field of medium and high voltage switchgear, in particular to an interlocking device used between a movable door and a grounding switch in a switch cabinet. Background technique [0002] There is usually a high-voltage cable room in the lower part of the switch cabinet. When overhauling the cable room, it is necessary to operate the grounding switch to the grounding (closing) position to ensure the safety of the overhaul process. That is to say, when the grounding switch is in the ungrounded (off) position, it is not allowed to open the cable compartment door for maintenance, and when the maintenance is not completed and the cable door is not closed, the grounding switch is not allowed to operate (such as opening). At present, the interlocking device between the cable room door and the grounding switch in the medium and high voltage switchgear is generally driven by a connecting rod. For example, Chinese patent C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/22H02B1/30
CPCH01H9/22H02B1/30
Inventor 王玉军王腊洪刘晓丽
Owner EATON ELECTRICAL EQUIP CO LTD