Anti-misoperation device of low voltage measuring cabinet

Abstract

The invention relates to an anti-misoperation device of a low voltage measuring cabinet. The anti-misoperation device comprises an isolation bracket which can be arranged on knife switches of a distribution board switch blade so as to effectively isolate an electrical part hung on the head of the switch blade, wherein an insulation connecting wire which can be connected with a ground wire is connected to the isolation bracket, the isolation bracket is a flat frame bracket, and two vertical partition boards are arranged in the middle of the flat frame bracket; a triangular connecting sheet is connected with a position between the two partition boards, and a connecting end part of the insulation connecting wire is in series connection with the triangular connecting sheet; the triangular connecting sheet is an isosceles triangle connecting sheet which is in inserted connection with corresponding inserting holes or grooves in the two partition boards through convex inserting end parts which are respectively arranged at two symmetrical angles, and a connecting end part of the insulation connecting wire is in series connection with the triangular vacancy position in the center of the isosceles triangle connecting sheet; the anti-misoperation device has the characteristics that the potential safety hazards due to misoperation caused by the condition that the low voltage measuring cabinet is powered off, an electric energy meter is exchanged, and a current transformer is exchanged are prevented.

Description

technical field [0001] The invention relates to an anti-misoperation device for replacing an electric energy meter and a current transformer during a power failure of a low-voltage metering cabinet, and belongs to the technical field of anti-misoperation of a low-voltage metering cabinet. Background technique [0002] It is often necessary to open the main gate of the power distribution panel on the user side when installing the low-voltage metering distribution panel to connect the meter and replace the low-voltage current transformer, and then replace the low-voltage current transformer on the busbar. For tools such as wrenches, due to the small space above and below the distribution panel, and the distance between the installation position of the transformer and the live part of the upper pile head of the main gate of the distribution panel is small, there is a certain unsafe factor when changing the transformer. [0003] Usually, when replacing the low-voltage current tr...

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Problems solved by technology

[0002] It is often necessary to open the main gate of the power distribution panel on the user side when installing the low-voltage metering distribution panel to connect the meter and replace the low-voltage current transformer, and then replace the low-voltage current transformer on the busbar. For tools such as wrenches, due to the small space above and below the distribution panel, and the distance between the installation position of the transformer and the live part of the upper pile head of the main gate of the distribution panel is small, there is a certain unsafe factor when changing the transformer

[0003] Usually, when replacing the low-voltage current transformer, hang a pair of grounding wires on the pile head of the main gate of the metering power distribution panel, and hang a pair of grounding wires on the outlet side of the metering power distribution panel. After the work is completed, the two pairs of grounding wires need to be removed. The ground wire can be used to transmit power to the gate, but in fact, when the power is transmitted after the work is completed, the staff will forget to remove the ground wire and cause the gate to be closed with ground, which is prone to safety accidents

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