CN212063007U - Conducting loop tripping device of switch cabinet - Google Patents

Abstract

The utility model provides a switch cabinet conductive loop jumping device, comprising a first conductive arm, a second conductive arm and a shorting piece, wherein one end of the first conductive arm is connected with one end of the shorting piece, and the first conductive arm is The other end is connected with the original incoming line conductive bar of the target switch cabinet; During use, after the isolation trolley is withdrawn and the movable baffle of the target switch cabinet is removed, the device uses bolts to connect the other end of the first conductive arm and the other end of the second conductive arm to the conductive bar of the original incoming line of the target switch cabinet. . Reliable connection of the outgoing conductor row, so as to realize the quick short-circuit of the upper and lower static contacts of the conductive part in the target switch cabinet, and realize the conduction in the target switch cabinet.

Description

A switch cabinet conductive circuit jumping device

technical field

The utility model relates to the field of switch cabinet operation and maintenance devices, in particular to a switch cabinet conductive loop jumping device.

Background technique

The 10kV switchgear of the substation undertakes the task of 10kV power supply and is an important electrical equipment in the substation. At present, the configuration mode of 10kV high-current isolation cabinet and 10kV high-current switch cabinet is mainly used in the substation. The 10kV high-current isolation cabinet is equipped with an isolation trolley as an isolation switch. When a power outage is required for maintenance, the isolation trolley is connected to the power bus by an isolation plug. , or insert a section of the connecting bus on the isolation trolley into the switch cabinet, and connect this section of the bus with the power supply through the upper and lower plugs to isolate the power bus and ensure the safety of personnel who repair the circuit breaker. However, in the normal use process, the isolation trolley is prone to overheating under the action of the large current of the switch cabinet, thus affecting the use of the equipment and circuits in the switch cabinet.

Utility model content

In order to overcome the defect that the isolation trolley described in the above-mentioned prior art is prone to overheating under the action of the large current of the switch cabinet and affects the operation of other equipment and circuits, the utility model provides a switch cabinet conductive circuit jumping device.

For solving the above-mentioned technical problems, the technical scheme of the present utility model is as follows:

A switch cabinet conductive loop jumping device, comprising a first conductive arm, a second conductive arm and a shorting piece, wherein one end of the first conductive arm is connected to one end of the shorting piece, and the other end of the first conductive arm is connected to a target One end of the second conductive arm is connected with the other end of the shorting piece, and the other end of the second conductive arm is connected with the conductive bar of the original outgoing line of the target switch cabinet.

In this technical solution, the main body of the switchgear conductive loop jumping device is composed of the first conductive arm, the second conductive arm and the shorting piece. During use, after the isolation trolley is withdrawn and the movable baffle of the target switchgear is removed, the The device uses bolts to reliably connect the other end of the first conductive arm and the other end of the second conductive arm with the original incoming and outgoing conductive bars of the target switch cabinet, so as to realize the rapid connection of the upper and lower static contacts of the conductive parts in the target switch cabinet. Short-circuit to achieve conduction in the target switchgear cabinet.

Preferably, flanges are provided at both ends of the first conductive arm and the second conductive arm, and the first conductive arm and the second conductive arm respectively use parts such as bolts and shorting pieces or target switches through the flange structures provided at both ends of the first conductive arm and the second conductive arm. Cabinet inlet and outlet cables are installed and fixed.

Preferably, a silver-plated layer is provided on the contact surfaces of the flanges provided at both ends of the first conductive arm and the second conductive arm, which can effectively reduce the resistance of the contact surfaces of the flanges provided at both ends of the first conductive arm and the second conductive arm. .

Preferably, holes are provided at both ends of the copper bar; the shorting piece is installed and connected to the flanges provided at both ends of the first conductive arm and the second conductive arm by bolts and nuts, respectively.

Preferably, the shorting piece includes three copper bars, and the shorting piece is provided with a gap in the middle of the three copper bars by a folding plate process, so as to ensure that the shorting piece can reliably dissipate heat when current passes through it.

Preferably, the first conductive arm and the second conductive arm are made of copper material.

Preferably, the wall thickness of the first conductive arm and the second conductive arm is not less than 16 mm, to ensure that the current capacity of the first conductive arm and the second conductive arm is not less than 4000A.

Preferably, the outer surfaces of the first conductive arm, the second conductive arm and the shorting piece are encapsulated with a heat-shrinkable insulating layer, which can prevent the first conductive arm, the second conductive arm and the shorting piece from short-circuiting the equipment due to exposed metal.

Preferably, the device further includes a live display sensor for displaying the live condition of the current switch cabinet conductive loop jumping device, and the live display sensor is arranged at the connection position between the second conductive arm and the shorting piece.

Preferably, the device further includes a temperature indicator for displaying the current temperature of the conductive loop jumping device of the switch cabinet, and the temperature indicator is arranged at the connection position between the first conductive arm and the shorting plate.

Compared with the prior art, the beneficial effect of the technical solution of the present utility model is: the conductive circuit jumping device of the switch cabinet composed of the first conductive arm, the second conductive arm and the shorting piece can make the conductive part in the target switch cabinet go up and down statically. The quick short-circuiting of the contacts realizes the conduction in the target switch cabinet, ensures the reliable power supply of the switch cabinet, and eliminates the hidden danger of heating of the isolated trolley.

Description of drawings

FIG. 1 is a schematic structural diagram of the conductive loop jumping device of the switch cabinet according to the first embodiment.

FIG. 2 is a schematic structural diagram of the conductive loop jumping device of the switch cabinet according to the second embodiment.

FIG. 3 is a schematic structural diagram of the conductive loop jumping device of the switch cabinet according to Embodiment 3. FIG.

Detailed ways

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent;

In order to better illustrate this embodiment, some parts of the drawings are omitted, enlarged or reduced, which do not represent the size of the actual product;

It will be understood by those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

This embodiment proposes a switchgear conductive loop jumping device, as shown in FIG. 1 , which is a schematic structural diagram of the switchgear conductive loop jumping device in this embodiment.

The switchgear conductive loop jumping device proposed in this embodiment includes a first conductive arm 1, a second conductive arm 2, and a shorting piece 3, wherein one end of the first conductive arm 1 is connected to one end of the shorting piece 3, The other end of the first conductive arm 1 is installed on the upper static contact seat of the isolation trolley of the target switch cabinet, and is connected to the conductive bar of the original incoming line of the target switch cabinet; one end of the second conductive arm 2 is connected to the other end of the shorting piece 3 One end is connected, and the other end of the second conductive arm 2 is installed on the lower static contact seat of the isolation trolley of the target switch cabinet, and is connected to the conductive bar of the original outlet line of the target switch cabinet.

In this embodiment, flanges 11/21 are provided at both ends of the first conductive arm 1 and the second conductive arm 2, and the first conductive arm 1 and the second conductive arm 2 pass through the flanges 11/21 provided at both ends respectively. Use bolts and other parts to install and fix the shorting piece 3 or the original incoming and outgoing wires of the target switch cabinet. In addition, a silver-plated layer is provided on the contact surface of the flange 11/21, and the thickness of the silver-plated layer is not less than 6 μm. In this embodiment, the thickness of the silver-plated layer provided on the flange 11/21 is 6 μm.

In this embodiment, the first conductive arm 1 and the second conductive arm 2 are made of copper material, and their wall thickness is not less than 16 mm. In this embodiment, the wall thickness of the first conductive arm 1 and the second conductive arm 2 is 16 mm .

In this embodiment, the shorting piece 3 is composed of three copper bars of TMY120*10, and the two ends of the shorting piece 3 are provided with holes. The flanges 11/21 at both ends of the second conductive arm 2 are installed and connected; the two sides of the shorting piece 3 adopt the folding plate process, so that a hole with a width of 3mm is opened in the middle of the three copper bars.

In this embodiment, the outer surfaces of the first conductive arm 1 , the second conductive arm 2 and the shorting piece 3 are encapsulated with a heat shrinkable insulating layer, and the first conductive arm 1 , the second conductive arm 2 and the shorting piece 3 are thermally The reduced thickness of the insulating layer is 2mm.

In the specific implementation process, the flange at one end of the first conductive arm 1 and the hole opened at one end of the shorting piece 3 are connected by bolts and nuts, and the flange at one end of the second conductive arm 2 is connected with the other end of the shorting piece 3 The opened holes are connected by bolts and nuts to complete the assembly of the conductive loop jumping device of the switch cabinet in this embodiment. Then, after the isolation trolley is withdrawn and the movable baffle of the target switch cabinet is removed, the switch cabinet conductive loop jumping device of this embodiment is connected and installed with the power bus bar of the target switch cabinet. Specifically, bolts and nuts are used to connect the first conductive circuit The flange 11 provided at the other end of the arm 1 is connected to the first conductive arm 1 and the original incoming line conductive bar of the target switch cabinet; the flange 21 provided at the other end of the second conductive arm 2 is connected to the original outgoing line conductive bar of the target switch cabinet , so as to quickly short-circuit the upper and lower static contacts of the conductive part in the target switch cabinet, realize the conduction in the target switch cabinet, ensure the reliable power supply of the switch cabinet, and eliminate the hidden danger of heating of the isolated trolley.

Example 2

In this embodiment, on the basis of the switchgear conductive loop tripping device proposed in Embodiment 1, a liveness display sensor 4 is added for displaying the live status of the current switchgear conductive loop tripping device.

As shown in FIG. 2 , it is a schematic structural diagram of the conductive loop jumping device of the switchgear of the present embodiment.

Wherein, the charged display sensor 4 in this embodiment is arranged at the connection position between the second conductive arm 2 and the shorting piece 3 .

In the specific implementation process, the flange at one end of the first conductive arm 1 and the hole opened at one end of the shorting piece 3 are connected by bolts and nuts, and the flange at one end of the second conductive arm 2 is connected with the other end of the shorting piece 3 The opened holes are connected by bolts and nuts, and then bolts and nuts are used to connect the flange 11 provided at the other end of the first conductive arm 1 with the original incoming wire conductive bar of the target switch cabinet; the other end of the second conductive arm 2 is set The flange 21 of the target switch cabinet is reliably connected with the conductive bar of the original outlet line of the target switch cabinet, so as to realize the quick short-circuit of the upper and lower static contacts of the conductive part in the target switch cabinet.

In addition, the live display sensor 4 added in this embodiment is installed and arranged at the connection position between the second conductive arm 2 and the shorting piece 3 . When the switchgear conductive loop jumping device of this embodiment has an operating voltage, the live display sensor 4 The display window flashes to alert staff that the current high-voltage equipment is live.

Example 3

In this embodiment, on the basis of the switchgear conductive loop tripping device proposed in Embodiment 1 or Embodiment 2, a temperature indicator 5 for displaying the current temperature of the switchgear conductive loop tripping device is added.

As shown in FIG. 3 , it is a schematic structural diagram of the conductive loop jumping device of the switch cabinet in this embodiment.

Wherein, the temperature indicator 5 added in this embodiment is arranged at the connection position between the first conductive arm 1 and the shorting piece 3 . The temperature-indicating sheet 5 adopts a temperature-indicating wax sheet or a color-changing thermo-indicating sheet.

In the specific implementation process, the flange at one end of the first conductive arm 1 and the hole opened at one end of the shorting piece 3 are connected by bolts and nuts, and the flange at one end of the second conductive arm 2 is connected with the other end of the shorting piece 3 The opened holes are connected by bolts and nuts, and then bolts and nuts are used to connect the flange 11 provided at the other end of the first conductive arm 1 with the original incoming wire conductive bar of the target switch cabinet; the other end of the second conductive arm 2 is set The flange 21 of the target switch cabinet is reliably connected with the conductive bar of the original outlet line of the target switch cabinet, so as to realize the quick short-circuit of the upper and lower static contacts of the conductive part in the target switch cabinet.

In addition, the temperature-indicating sheet 5 used in this embodiment is a color-changing temperature-indicating sheet, and the temperature-indicating sheet 5 is pasted and arranged at the connection position of the first conductive arm 1 and the shorting piece 3. When the temperature of the conductive loop jumping device of the switch cabinet in this embodiment exceeds When the temperature value of the temperature indicator 5 is set, the temperature indicator 5 changes from the original white to the black after overheating, thereby indicating the overheating condition of the current switch cabinet conductive loop jumping device.

The same or similar reference numbers correspond to the same or similar parts;

The terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation on this patent;

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims (10)

1. A switchgear conductive loop jumping device, characterized in that it comprises a first conductive arm, a second conductive arm and a shorting piece, wherein one end of the first conductive arm is connected to one end of the shorting piece , the other end of the first conductive arm is connected to the conductive bar of the original incoming line of the target switch cabinet; one end of the second conductive arm is connected to the other end of the shorting piece, and the other end of the second conductive arm It is set to be connected to the original outlet conductor bar of the target switch cabinet. 2 . The switchgear conductive loop jumping device according to claim 1 , wherein flanges are provided at both ends of the first conductive arm and the second conductive arm. 3 . 3 . The switchgear conductive loop jumping device according to claim 2 , wherein the contact surfaces of the flanges provided at both ends of the first conductive arm and the second conductive arm are provided with a silver-plated layer. 4 . 4. The switchgear conductive loop jumping device according to claim 2, wherein the two ends of the shorting piece are provided with holes; the shorting piece adopts bolts and nuts to be connected with the first conductive arm, The flanges provided at both ends of the second conductive arm are installed and connected. 5 . The switchgear conductive loop jumping device according to claim 2 , wherein the shorting piece comprises 3 copper bars, and the shorting piece is positioned in the middle of the 3 copper bars by a folding plate process. 6 . There is a gap. 6 . The switchgear conductive loop jumping device according to claim 1 , wherein the first conductive arm and the second conductive arm are made of copper material. 7 . 7 . The conductive loop jumping device of a switch cabinet according to claim 6 , wherein the wall thicknesses of the first conductive arm and the second conductive arm are not less than 16 mm. 8 . 8 . The switchgear conductive loop jumping device according to claim 1 , wherein the outer surfaces of the first conductive arm, the second conductive arm and the shorting piece are encapsulated with a heat shrinkable insulating layer. 9 . 9. The switchgear conductive loop jumping device according to any one of claims 1 to 8, wherein the device further comprises a live display sensor, and the live display sensor is arranged between the second conductive arm and the the connection position of the shorting piece. 10. The switchgear conductive loop jumping device according to any one of claims 1 to 8, wherein the device further comprises a temperature indicator, and the temperature indicator is arranged between the first conductive arm and the short circuit. Tab connection location.

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