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High-safety central-positioned switch cabinet

A switch cabinet, center-mounted technology, applied in the field of center-mounted switch cabinets, to achieve the effects of avoiding misoperation, protecting personnel safety, and simple structure

Active Publication Date: 2017-09-15
ZHANGZHOU POWER SUPPLY COMPANY STATE GRID FUJIANELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The central switchgear is a common equipment in the power supply equipment. It often has high voltage inside, but this equipment often requires manual control by maintenance personnel, entering the cabinet for maintenance and visual observation, but the high voltage in the cabinet is easy to form an induced potential at the cabinet door. Even leakage arc (arc light) is generated, so it is necessary to fully optimize the manual operation of personnel at the cabinet door to ensure the safety of maintenance personnel's manipulation

Method used

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  • High-safety central-positioned switch cabinet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057]The method of using the emergency trip operating mechanism of the switch cabinet is as follows; the initial state of the installation plate is to stick to the rear side of the cabinet door. During operation, use the insulated handle to rotate the mounting plate 90° around the hinged seat so that the mounting plate and the cabinet door are in a vertical state, and at the same time push the drive button with the other hand from front to back, so that the sliding rod slides backward and the sliding rod The other end drives the emergency trip button. After the operation is completed, loosen the insulating handle, and the mounting plate will reset under the force of the torsion spring.

Embodiment 2

[0059] The working method of the locking mechanism in the closed state of the cabinet door is as follows: after the rear cabinet door is closed, the hook plate extends into the switch cabinet through the notch. Rotate 90° to complete the disconnection operation of the grounding switch. After the grounding switch is disconnected, the cabinet door is locked and cannot be opened. At this time, the limit convex part of the lock catch fixed on the rear end of the operating shaft is embedded in the hook plate. The locking of the rear side cabinet door is completed in the slot. When the rear cabinet door needs to be opened, the operating shaft must be turned clockwise to close the grounding switch. At this moment, the limit protrusion of the lock catch is disengaged from the draw-in groove, and the rear cabinet door can only be opened.

Embodiment 3

[0061] The working mode of the grounding switch operating shaft locking mechanism in the cabinet door open state is as follows: when the maintenance personnel need to enter the cabinet for maintenance, first close the grounding switch (the ground knife is grounded), and then open the rear cabinet door, the elastic sliding rod is in the position of the compression spring. Sliding to the rear side of the switch cabinet under the force, so that the limit stopper falls into the gap of the lock piece and locks the lock piece, so that the operating shaft cannot rotate, and the grounding state is locked to avoid misoperation of the operating shaft. When the grounding switch is disconnected, the safety of the personnel entering the cabinet is protected; when the personnel leave the cabinet after overhauling, close the rear cabinet door of the switch cabinet, and the rear cabinet door abuts against the rear end of the elastic sliding rod to make the elastic sliding The bar slides forwar...

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Abstract

The invention provides a high-safety central-positioned switch cabinet, which is characterized in that a switch cabinet emergency trip operating mechanism is arranged at a cabinet door of the switch cabinet so as to operate an emergency trip button through the door at a closing state of the cabinet door; the switch cabinet is internally provided with a cabinet door closing state locking mechanism, thereby being capable of ensuring that the cabinet door can be prevented from being opened at an off state of a grounding switch; and the switch cabinet is further provided with a cabinet door opening state grounding switch operating shaft locking mechanism, thereby being capable of ensuring that an operating shaft is prevented from rotating when the cabinet door is open, and avoiding occurrence of misoperation of a grounding switch. The high-safety central-positioned switch cabinet performs sufficient optimization on manual operations of the field personnel at each cabinet door of the switch cabinet so as to guarantee the safety of the maintenance personnel.

Description

technical field [0001] The invention relates to the field of power supply equipment, in particular to a middle-mounted switch cabinet with high safety. Background technique [0002] The central switchgear is a common equipment in the power supply equipment. It often has high voltage inside, but this equipment often requires manual control by maintenance personnel, entering the cabinet for maintenance and visual observation, but the high voltage in the cabinet is easy to form an induced potential at the cabinet door. Even leakage arc (arc light) is generated, so it is necessary to fully optimize the manual operation of personnel at the cabinet door to ensure the safety of maintenance personnel. Contents of the invention [0003] The present invention proposes a high-safety middle-mounted switch cabinet, which is fully optimized for the manual operation of on-site personnel at each cabinet door of the switch cabinet to ensure the safety of maintenance personnel. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/025H01H9/22
CPCH02B13/025H01H9/22
Inventor 洪碧尧王建忠林石生黄文胜洪友亮谢俊聪曾爱玉
Owner ZHANGZHOU POWER SUPPLY COMPANY STATE GRID FUJIANELECTRIC POWER
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