Switchgear high voltage interface protection cover combination

Abstract

The invention discloses a switch cabinet high-voltage interface protection cap assembly which comprises an upper insulation cover plate (12), a lower insulation cover plate (11), a first spring-back mechanism, a second spring-back mechanism and a guide bar (2). The guide bar is vertically arranged in a high-voltage chamber, and one end of the upper insulation cover plate and one end of the lower insulation cover plate (11) are sleeved on the guide bar (2); the top end of the upper insulation cover plate is connected with the second spring-back mechanism, and the second spring-back mechanism can drive the upper insulation cover plate to slide back and forth along the axial direction of the guide bar to cover or uncover a high-voltage interface (3) in the upper layer; and the bottom end of the lower insulation cover plate (11) is connected with the first spring-back mechanism, and the first spring-back mechanism can drive the lower insulation cover plate to slide along the axial direction of the guide bar to cover or uncover the high-voltage interface in the lower layer. The protection cap assembly can uncover the high-voltage interface in different layers step by step, and can re-cover the high-voltage interface in time quickly after a high-voltage line is disconnected, so that safety performance is high, and the case of electric shock accident is prevented.

Description

technical field [0001] The invention relates to the technical field of switch cabinets, in particular to a combination of protective covers for high-voltage interfaces of switch cabinets. Background technique [0002] The switch cabinet is a kind of electrical equipment. The outside line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instruments, automatic controls, motor magnetic switches, various AC contactors, etc., some also have high-voltage room and low-voltage room switch cabinets, high-voltage busbars, such as power plants, etc. load shedding. Its main function is to switch, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system. [0003] The high-voltage interface in the switch cabinet is used to connect to the high-voltage line, but the connection betwee...

AI Technical Summary

Problems solved by technology

[0003] The high-voltage interface in the switch cabinet is used to connect to the high-voltage line, but the connection between the high-voltage line and the high-voltage interface will be disconnected before assembly or during maintenance, so that the high-voltage interface is exposed, which is likely to cause fatal electric shock to the operator sexual harm

In order to prevent the operator from getting an electric shock during the construction process, the existing solution is to use a simple board to cover the high-voltage interface, but it is easy to tilt or fall so that the high-voltage interface will still be open, and if it is fixed, it will cause When the high-voltage line needs to be connected later, it will be disassembled again, which will delay a lot of time

[0004] Moreover, the existing high-pressure chamber has multiple layers of high-voltage interfaces. If a board is used for shielding, the area of ​​the board will be larger and the weight will be heavier. Open, there is still the risk of electric shock, low safety factor

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