CN204556663U - The anti-misoperation apparatus of low-voltage metering cabinet - Google Patents

Abstract

The anti-misoperation device of the low-voltage metering cabinet, which includes an isolation bracket that can be placed on the knife switch of the switch knife to effectively isolate the live parts of the hanging head on the switch knife. An insulated connecting rope that can be connected to the ground wire; the isolation bracket is a flat frame bracket, and two vertical partitions are arranged in the middle of the flat frame bracket, and are connected between the two partitions There is a triangular connecting piece, on which the connecting end of the insulating connecting rope is connected in series; the described triangular connecting piece is an isosceles triangular connecting piece, and the isosceles An externally protruding plug-in end is plugged into the corresponding plug-in holes or slots of the two partitions, and the connecting end of the insulating connecting rope is connected in series to the middle triangle vacancy of the isosceles triangular connecting piece. It can prevent low-voltage metering cabinets from power outages to replace electric energy meters and replace current transformers from misoperations and potential safety hazards.

Description

Anti-misoperation device of low-voltage metering cabinet

technical field

The utility model 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

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.

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. Only 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, which will cause the gate to be closed with ground, which is prone to safety accidents.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a simple structure, convenient and reliable use, which can avoid and prevent misoperation and potential safety hazards when the low-voltage metering cabinet is powered off to replace the electric energy meter or the current transformer. The anti-misoperation device of the low-voltage metering cabinet.

The purpose of this utility model is to be accomplished through the following technical scheme, a low-voltage metering cabinet anti-misoperation device, which includes a switch that can be placed on the switch of the switch knife of the distribution screen so as to effectively hang the charged part of the switch on the switch An isolated isolating bracket, on which an insulated connecting rope that can be connected to the grounding wire is connected.

The isolation bracket is a flat frame bracket, two vertical partitions are arranged in the middle of the flat frame bracket, and a triangular connecting piece is connected between the two partitions, on the triangular connecting piece The connecting ends of the insulated connecting ropes are connected in series.

The triangular connecting piece described in the utility model is an isosceles triangular connecting piece, and the isosceles triangular connecting piece is inserted into the corresponding part of the two partitions through two symmetrical corners respectively provided with a protruding plug-in end. In the insertion hole or slot, the connecting end of the insulating connecting rope is serially connected to the middle triangle vacancy of the isosceles triangle connecting piece.

The utility model has the characteristics of simple structure, convenient and reliable use, and can prevent the low-voltage metering cabinet from power failure to replace the electric energy meter and the current transformer from misoperation and bring safety hazards.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the installation structure of the utility model.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings: as shown in Figures 1 and 2, the anti-misoperation device of the low-voltage metering cabinet described in the utility model includes a knife switch that can be placed on the power distribution panel 1 switch knife 2, in order to effectively isolate the isolation bracket 3 on the live part of the hanging head on the switch knife, an insulating connecting rope 5 that can be connected with the grounding wire 4 is connected to the isolation bracket 3.

As shown in Fig. 2, the spacer bracket 3 described in the utility model is a flat frame bracket, and two vertical partitions 6 are arranged in the middle of the flat frame bracket, and are connected between the two partitions 6. A triangular connecting piece 7 is connected, on which the connecting end of the insulating connecting rope 5 is connected in series.

As shown in the figure, the triangle connecting piece 7 is an isosceles triangle connecting piece, and the isosceles triangle connecting piece is inserted into the two pieces through a protruding plug-in end 8 respectively provided at two symmetrical corners. In the corresponding insertion holes or slots 9 of the separator 6 , the connecting ends of the insulating connecting ropes 5 are connected in series to the middle triangular vacancy 10 of the isosceles triangular connecting piece.

The isolating block described in the utility model is made of insulating material. When the switch blade of the power distribution panel is opened, the isolating block is placed on the switch and can effectively isolate the live parts of the pile heads on the switch. And made an insulating connection rope on this isolation block, this insulation connection rope connects the grounding wire and the isolation block, take out the isolation block when the work is completed and power transmission, the connection rope on the isolation block can remind you to remove the ground wire, which can effectively Prevent closing with ground.

Claims (2)

1. The anti-misoperation device of the low-voltage metering cabinet is characterized in that it includes an isolation bracket that can be placed on the switch of the switch knife of the power distribution panel to effectively isolate the live parts of the hanging head on the switch knife. An insulated connecting rope that can be connected to the grounding wire is connected to the bracket; the isolation bracket is a flat frame bracket, and two vertical partitions are arranged in the middle of the flat frame bracket, and between the two There is a triangular connecting piece connected between the separators, and the connecting ends of the insulating connecting ropes are connected in series on the triangular connecting piece. 2. The anti-misoperation device of the low-voltage metering cabinet according to claim 1, characterized in that: the triangular connecting piece is an isosceles triangular connecting piece, and the isosceles The convex plug-in ends are plugged into the corresponding plug-in holes or slots of the two partitions, and the connecting ends of the insulating connecting ropes are serially connected to the middle triangle vacancy of the isosceles triangular connecting piece.