A new type of 252kV cable terminal cabin structure

Abstract

The utility model relates to a novel 252kV cable terminal cabin structure, including an outer shell, the inner wall of which is connected with a vertically arranged cable plug-in head and a horizontally arranged fixed conductor, the cable plug-in head and the fixed conductor are connected by a detachable connector, the detachable connector includes a connecting conductor, a conductive rod and a connecting plate; the connecting conductor and the fixed conductor are located on the same straight line, the end face of the connecting conductor facing the fixed conductor is connected to the end face of the fixed conductor by bolts, the bottom surface of the connecting conductor is vertically connected to one end of the conductive rod by bolts, the other end of the conductive rod is plugged into a contact seat and connected to the connecting plate through the contact seat, and the connecting plate is connected to the cable plug-in head by bolts. The utility model designs a detachable conductor splicing structure, which meets the requirement of conducting insulation tests on the on-site cable plug-in head without disassembly, reduces the workload of on-site installation, and is convenient for later cable terminal maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switches, in particular to a novel 252kV cable terminal cabin structure. Background Art

[0002] At present, most of the grounding connections of high-voltage switches with a voltage level of 252kV and above adopt a fixed conductor structure. Most users require on-site insulation tests with cable plugs. Since the traditional conductor structure cannot be disassembled and there is no break between the cable plug and the conductor, it cannot meet the on-site test requirements. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a novel 252kV cable terminal cabin structure, which is designed with a detachable conductor splicing structure, meeting the requirement of conducting insulation tests on on-site cable plug-ins without disassembling them, reducing the workload of on-site installation and facilitating later cable terminal maintenance.

[0004] The utility model is realized through the following technical solutions:

[0005] Provided is a novel 252kV cable terminal cabin structure, comprising a shell, wherein the inner wall of the shell is connected with a vertically arranged cable plug and a horizontally arranged fixed conductor, wherein the cable plug and the fixed conductor are connected via a detachable connector, wherein the detachable connector comprises a connecting conductor, a conductive rod and a connecting plate;

[0006] The connecting conductor and the fixed conductor are located on the same straight line, the end face of the connecting conductor facing the fixed conductor is connected to the end face of the fixed conductor by bolts, the bottom face of the connecting conductor is vertically connected to one end of the conductive rod by bolts, the other end of the conductive rod is inserted into the contact seat and connected to the connecting plate through the contact seat, and the connecting plate is connected to the cable plug-in head by bolts.

[0007] Furthermore, a cavity is provided in the connecting conductor, and the cavity is open at the end of the connecting conductor away from the fixed conductor, a transverse threaded through hole is provided on the side of the cavity facing the fixed conductor, and a threaded blind hole facing the transverse threaded through hole is provided on the end face of the fixed conductor facing the connecting conductor; a vertical threaded through hole is provided on the lower bottom face of the cavity, and a threaded blind hole facing the vertical threaded through hole is provided on the end face of the conductive rod facing the connecting conductor.

[0008] Furthermore, a vertical threaded through hole is also provided on the upper top surface of the cavity, and a shielding head I is installed on the top surface of the connecting conductor by bolts, and a shielding head II that can close the opening is provided at the opening of the connecting conductor, and the shielding head II is installed on the end surface of the connecting conductor by bolts connected to the side surface of the cavity.

[0009] Beneficial effects of the utility model:

[0010] The utility model adopts the design of detachable connectors to realize detachable structural conductors, so as to meet the insulation test of on-site cable plug-in heads without disassembly, which greatly reduces the on-site workload, ensures safe and reliable insulation, and facilitates the later maintenance of cable terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the structural diagram of the traditional cable terminal compartment.

[0012] Figure 2 It is a structural schematic diagram of the utility model.

[0013] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0014] Figure 4 It is a cross-sectional schematic diagram of the connecting conductor in the utility model.

[0015] As shown in the figure:

[0016] 1. Cover plate, 2. Shell, 3. Upper cover plate, 4. Shielding head I, 5. Shielding head II, 6. Connecting conductor, 7. Fixed conductor, 8. Insulator, 9. Conductive rod, 10. Contact seat, 11. Connecting plate, 12. Cable plug-in head, 13. Cavity, 14. Bolt, 15. Horizontal screw through hole, 16. Vertical screw through hole. DETAILED DESCRIPTION

[0017] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0018] like Figure 2 As shown, a new type of 252kV cable terminal cabin structure includes a shell 1, one side of the shell 1 is connected to a cover plate 2, the upper part of the shell 1 is connected to an upper cover plate 3, the inner wall of the shell 1 is connected with a vertically arranged cable plug head 12 and a horizontally arranged fixed conductor 7, the fixed conductor 7 is installed on the right side of the inner wall of the shell 1 through an insulator 8, the cable plug head 12 and the fixed conductor 7 are connected by a detachable connector, and the detachable connector includes a connecting conductor 6, a conductive rod 9 and a connecting plate 11.

[0019] The connecting conductor 6 and the fixed conductor 7 are located on the same straight line, and the end face of the connecting conductor 6 facing the fixed conductor 7 is connected to the end face of the fixed conductor 7 by bolts. The bottom face of the connecting conductor 6 is vertically connected to one end of the conductive rod 9 by bolts. The other end of the conductive rod 9 is inserted into the contact seat 10 and connected to the connecting plate 11 through the contact seat 10. The connecting plate 11 is connected to the cable plug head 12 by bolts.

[0020] like Figure 4As shown, a cavity 13 is provided in the connecting conductor 6, and the cavity 13 is open at the end of the connecting conductor 6 away from the fixed conductor 7, a transverse threaded through hole 15 is provided on the side of the cavity 13 facing the fixed conductor 7, and a threaded blind hole facing the transverse threaded through hole 15 is provided on the end face of the fixed conductor 7 facing the connecting conductor 6; a vertical threaded through hole 16 is provided on the lower bottom face of the cavity 13, and a threaded blind hole facing the vertical threaded through hole 16 is provided on the end face of the conductive rod 9 facing the connecting conductor 6.

[0021] like Figure 3 As shown, a vertical threaded through hole 16 is also provided on the upper top surface of the cavity 13, and a shielding head I4 is installed on the top surface of the connecting conductor 6 by means of bolts 14. A shielding head II5 that can close the opening is provided at the opening of the connecting conductor 6, and the shielding head II6 is installed on the end surface of the connecting conductor 6 by means of bolts 12 connected to the side surface of the cavity 13.

[0022] The utility model designs a detachable connector, and the connecting conductor 6 is respectively connected to the fixed conductor 7 and the cable plug head 12 by bolts 14. When performing an insulation test, it is only necessary to remove the bolts on the shielding head II5, and then remove the bolts between the connecting conductor 6 and the fixed conductor 7, so that the connecting conductor 6 can be separated from the fixed conductor 7, and the conductive rod 9 connected to the bottom surface of the connecting conductor 6 is plugged into the contact seat 10, which can be conveniently separated from the cable plug head 12. The insulation test can be performed without disassembling the cable plug head 12, which greatly reduces the workload on site, ensures safe and reliable insulation, and facilitates the later maintenance of the cable terminal.

[0023] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A novel 252kV cable terminal cabin structure, comprising a shell, the inner wall of which is connected with a vertically arranged cable plug and a horizontally arranged fixed conductor, characterized in that: The cable plug and unplug head and the fixed conductor are connected by a detachable connector, which includes a connecting conductor, a conductive rod and a connecting plate; The connecting conductor and the fixed conductor are located on the same straight line, the end face of the connecting conductor facing the fixed conductor is connected to the end face of the fixed conductor by bolts, the bottom face of the connecting conductor is vertically connected to one end of the conductive rod by bolts, the other end of the conductive rod is inserted into the contact seat and connected to the connecting plate through the contact seat, and the connecting plate is connected to the cable plug-in head by bolts.

2. The novel 252kV cable terminal compartment structure according to claim 1 is characterized in that: A cavity is provided in the connecting conductor, and the cavity is open at the end of the connecting conductor away from the fixed conductor. A transverse threaded through hole is provided on the side of the cavity facing the fixed conductor, and a threaded blind hole facing the transverse threaded through hole is provided on the end face of the fixed conductor facing the connecting conductor; a vertical threaded through hole is provided on the lower bottom face of the cavity, and a threaded blind hole facing the vertical threaded through hole is provided on the end face of the conductive rod facing the connecting conductor.

3. The novel 252kV cable terminal compartment structure according to claim 2 is characterized in that: A vertical threaded through hole is also provided on the upper top surface of the cavity, and a shielding head I is installed on the top surface of the connecting conductor by bolts. A shielding head II that can close the opening is provided at the opening of the connecting conductor, and the shielding head II is installed on the end surface of the connecting conductor by bolts connected to the side surface of the cavity.

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