Core-through conductor and voltage-withstanding tool comprising same

Abstract

The utility model relates to the technical field of GIS voltage withstanding, in particular to a cross-core conductor and a voltage withstanding tool comprising the same, the cross-core conductor comprises a connecting body, and the middle part of the connecting body is provided with a connecting hole; a plurality of contact fingers are mounted on the inner wall of the connecting hole; connecting blocks are arranged at the upper ends of the connecting bodies; a connecting disc is arranged at the lower end of the connector. The arrangement of the connecting holes facilitates the connection of insulators; the arrangement of the connecting blocks facilitates the connection of conductors; the arrangement of the connecting disc facilitates the connection of the tulip contact; the structure is simple, connection is convenient, single-phase voltage withstanding can be completed through the same conductor, the number of times of dismounting and mounting of the sleeve is reduced, the working efficiency is improved, and the application range is widened.

Description

Technical Field

[0001] This utility model relates to the field of GIS pressure-resistant technology, and in particular to a through-core conductor and a pressure-resistant fixture including the through-core conductor. Background Technology

[0002] The on-site withstand voltage test for GIS cable bays is an insulation withstand voltage performance test conducted on the bay components, including cable terminals, at the GIS equipment installation site. Its purpose is to check for insulation defects in the GIS cable bays during installation and to ensure that the equipment can withstand the normal operating voltage and potential overvoltages after being put into operation.

[0003] When conducting on-site withstand voltage testing of GIS cable bays in subdivided units, the withstand voltage testing fixtures need to be frequently disassembled and reassembled, including the bushings and internal conductors (the bushings and internal conductors need to be disassembled once between the withstand voltage bay and the withstand voltage cable). Figure 1 and Figure 2 As shown, the lower interface of the four-way connector 11 is connected to a cable. An insulator 10 is installed at the left interface of the four-way connector 11. The T-shaped connecting plate 15 is connected to the upper interface of the bushing 3 by bolts and flanges. The lower end of the T-shaped connecting plate 15 is connected to the long conductor 16. A plum blossom contact 13 is installed at the lower end of the long conductor 16. A short conductor 18 is installed on the insulator 10. Then, the bushing 3, the long conductor 16, and the plum blossom contact 13 are hoisted into the upper opening of the four-way connector 11. The bushing 3 is connected to the four-way connector 11 by bolts. Then, the plum blossom contact 13 and the short conductor 18 are connected using the connector 19 to seal the right opening of the four-way connector 11. After sealing, SF6 is filled into the four-way connector 11 to the rated pressure of 0.4 MPa, and the pressure resistance interval is completed. Afterwards, recover the gas, remove the right-side sealing plate and sleeve 3 of the four-way 11; after hoisting down the sleeve 3, remove the T-type terminal block 15 and flange; remove the first long conductor 16, and install the second long conductor 17 (with a short connector 20 installed at one end) on the T-type connecting plate 15; connect the T-type connecting plate 15 to the sleeve 3; remove the connector 19 and the short conductor 18; install the plum blossom contact 13 on the cable at the lower opening of the four-way 11; install the sleeve 3 and the inner second long conductor 17 together on the four-way 11, and insert the short connector 20 on the second long conductor 17 into the plum blossom contact 13 of the bottom cable connection; install the sealing plate at the right-side opening of the four-way 11, and fill with SF6 to the rated pressure of 0.4 MPa, for a pressure-resistant cable.

[0004] As can be seen from the above steps, the existing technology requires repeated disassembly and reassembly of the bushing 3 and the long conductor 16 and the long conductor 27 on the bushing 3 twice in order to complete the single-phase withstand voltage test. The operation is cumbersome, time-consuming and labor-intensive, which affects the work efficiency and has a limited scope of application. Utility Model Content

[0005] In view of the problem that in the prior art, two times of disassembly and assembly of the sleeve 3 and the long conductor one 16 and the long conductor two 17 on the sleeve 3 are needed to complete single-phase voltage resistance, the operation is complicated, time-consuming and laborious, the work efficiency is affected, and the application range is small, the utility model provides a kind of voltage resistance tool and including it.

[0006] To solve the above problems, the utility model adopts the technical scheme that,

[0007] A kind of through core conductor, including connecting body, connecting hole is arranged in the middle part of connecting body;Several contact fingers are installed on the inner wall of connecting hole;Connecting block is arranged on the upper end of connecting body;Connecting disc is arranged on the lower end of connecting body.The setting of connecting hole is convenient for connecting insulator;The setting of connecting block is convenient for connecting conductor;The setting of connecting disc is convenient for connecting plum blossom contact;Simple structure, convenient connection, can utilize the same conductor to complete single-phase voltage resistance, reduce the disassembly frequency of bushing, improve work efficiency, increase application range.

[0008] Preferably, two guide sleeves are further arranged in the connecting hole;The two guide sleeves are respectively arranged on the two sides of the axial direction of the several contact fingers.

[0009] Preferably, threaded blind hole is arranged on the connecting block;Connecting through hole is arranged on the connecting disc.The setting of threaded blind hole is convenient for connecting the first joint by bolt;The setting of connecting through hole is convenient for connecting the third joint by bolt.

[0010] Preferably, first shielding connecting hole is arranged in the middle part of connecting block;Second shielding connecting hole is arranged in the middle part of connecting disc.It is convenient to install shielding body by first shielding connecting hole and second shielding connecting hole.

[0011] A kind of voltage resistance tool, including the above-mentioned through core conductor;The voltage resistance tool further includes conductor;The upper end of the conductor is connected with T-shaped connecting plate;The lower end of the conductor is threadedly connected with first joint;The first joint is connected with connecting block by bolt;Second joint is inserted in connecting hole;Second joint abuts contact finger;The end of second joint away from connecting hole is connected with insulator;The insulator is installed at four-way left side interface;Conductor is inserted into four-way from four-way upper end interface.When using, T-shaped connecting plate is installed at the opening of the upper end of sleeve by bolt and flange, and single-phase interval voltage resistance can be completed by using conductor.

[0012] Preferably, the voltage resistance tool further includes third joint;One end of third joint is connected with connecting disc by bolt;The end of third joint away from connecting disc is installed on plum blossom contact;Plum blossom contact is installed at four-way lower end interface.The same conductor can be used for voltage resistance cable, which avoids disassembly of bushing, improves work efficiency and increases application range.

[0013] Preferably, the pressure-resistant tool further comprises a shielding body. The shielding body is installed in the first shielding connecting hole and the second shielding connecting hole by bolts, and is installed at the joint of the first joint, the third joint and the through conductor.

[0014] By reasonable arrangement of the through conductor, the pressure resistance of single phase can be completed by using the same conductor, the repeated disassembly and assembly of the bushing is avoided, the operation is simple, the installation is convenient, time and labor are saved, the on-site emergency project implementation is facilitated, the application range is increased, and the work efficiency is improved.

[0015] Through the above technical scheme, the advantages of the utility model are that: by reasonable arrangement of the through conductor, the pressure resistance of single phase can be completed by using the same conductor, the repeated disassembly and assembly of the bushing is avoided, the operation is simple, the installation is convenient, time and labor are saved, the on-site emergency project implementation is facilitated, the application range is increased, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed to be used in the description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0017] Figure 1 It is a structure schematic view of the prior art when interval pressure is used.

[0018] Figure 2 It is a structure schematic view of the prior art when cable pressure is used.

[0019] Figure 3 It is a structure schematic view of the utility model embodiment 1 Figure 1 ;

[0020] Figure 4 It is a structure schematic view of the utility model embodiment 1 Figure 2 ;

[0021] Figure 5 It is a sectional structure schematic view of the utility model embodiment 1;

[0022] Figure 6 It is a structure schematic view of the utility model embodiment 2 when interval pressure is used;

[0023] Figure 7 It is Figure 6 An enlarged schematic view of A in the figure;

[0024] Figure 8 It is a structure schematic view of the utility model embodiment 2 when cable pressure is used;

[0025] Figure 9 It isFigure 8 Enlarged diagram of point B in the middle.

[0026] Explanation of main figure symbols

[0027] 1-Connector, 2-Contact finger, 3-Sleeve, 4-Connecting block, 5-Connecting disc, 6-Guide sleeve, 7-Conductor, 8-First connector, 9-Second connector, 10-Insulator, 11-Four-way connector, 12-Third connector, 13-Plum blossom contact, 14-Shielding body, 15-T-type connecting plate, 16-Long conductor one, 17-Long conductor two, 18-Short conductor, 19-Connector, 20-Short connector;

[0028] 101-Connecting hole; 401-Threaded blind hole; 402-First shielding connecting hole; 501-Connecting through hole; 502-Second shielding connecting hole. Detailed Implementation

[0029] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0030] Example 1

[0031] like Figures 3-5 As shown, a through-core conductor includes a connector 1 with a connecting hole 101 in the middle. A plurality of contact fingers 2 are installed on the inner wall of the connecting hole 101, and two guide sleeves 6 are also provided inside the connecting hole 101. The two guide sleeves 6 are respectively located on both sides of the plurality of contact fingers 2 in the axial direction. A connecting block 4 is provided at the upper end of the connector 1, and a connecting plate 5 is provided at the lower end of the connector 1. A threaded blind hole 401 is provided on the connecting block 4, and a first shielding connecting hole 402 is provided in the middle of the connecting block 4. A connecting through hole 501 is provided on the connecting plate 5, and a second shielding connecting hole 502 is provided in the middle of the connecting plate 5, facilitating the installation of a shielding body 14 using the first shielding connecting hole 402 and the second shielding connecting hole 502. The threaded blind hole 401 facilitates the connection of a first connector 8 using bolts; the connecting through hole 501 facilitates the connection of a third connector 12 using bolts.

[0032] The connection hole 101 facilitates the connection of the insulator 10; the connection block 4 facilitates the connection of the conductor 7; and the connection disc 5 facilitates the connection of the plum blossom contact 13. The structure is simple and easy to connect. It can complete the withstand voltage test of a single phase using the same conductor 7, reducing the number of times the bushing 3 is disassembled and assembled, improving work efficiency, and increasing the scope of application.

[0033] The through conductor can not only be used as a connecting medium, but also as a detachable conductor if a pullout is reserved on the shell, meeting the requirements of countermeasures (at PT and LA). The through conductor can be used as a standby breaking point for emergency repair.

[0034] Embodiment 2

[0035] As shown in Figures 6-9 A pressure-resistant tool including the through conductor of Embodiment 1; the pressure-resistant tool further includes a conductor 7; a first connector 8 is threadedly connected to the lower end of the conductor 7; the first connector 8 is connected to the connecting block 4 through a bolt connection; a second connector 9 is inserted into the connecting hole 101; the second connector 9 abuts against the finger 2; the end of the second connector 9 away from the connecting hole 101 is connected to an insulator 10; the insulator 10 is installed at the left-side interface of a four-way joint 11; the conductor is arranged in the four-way joint.

[0036] The pressure-resistant tool further includes a third connector 12; one end of the third connector 12 is connected to the connecting disc 5 through a bolt connection; the end of the third connector 12 away from the connecting disc 5 is installed on a star-shaped contact 13; the star-shaped contact 13 is installed at the lower-end interface of the four-way joint 11. A shielding body 14 is installed in the first shielding connecting hole 402 and the second shielding connecting hole 502 through a bolt connection, and is installed at the connection between the first connector 8, the third connector 12 and the through conductor.

[0037] The above-mentioned pressure-resistant tool is used, including the following steps:

[0038] S1, a T-shaped connecting plate 15 is installed at the upper end of the conductor 7; the first connector 8 is threadedly connected to the lower end of the conductor 7; then the T-shaped connecting plate 15 is installed on the bushing 3 through a bolt connection, and the conductor 7 is installed in the bushing 3;

[0039] S2, the insulator 10 is installed at the left-side interface of the four-way joint 11; then the second connector 9 is installed on the insulator 10 through a bolt connection;

[0040] S3, the bushing 3 is hoisted and installed on the upper-end interface of the four-way joint 11 through a bolt connection; at the same time, the conductor 7 is inserted into the four-way joint 11;

[0041] S4, the through conductor is placed inside the four-way joint 11, and the second connector 9 is inserted into the connecting hole 101 of the through conductor; the first connector 8 is connected to the connecting block 4 of the through conductor through a bolt connection;

[0042] S5, the inside of the four-way joint 11 is cleaned; a flange is installed at the right-side interface of the four-way joint 11; the lower-end interface of the four-way joint 11 is sealed and grounded; then SF6 is filled into the four-way joint 11 to a rated pressure of 0.4 Mpa, and a pressure-resistant interval is formed.

[0043] After step S5 is completed, step S6 is further included: recovering the gas and removing the right-side sealing plate of the four-way joint 11;

[0044] S7, remove the through conductor and the second joint 9; install the star-shaped contact 13 at the lower end interface of the four-way 11; install the third joint 12 on the star-shaped contact 13; the third joint 12 is bolted to the connecting disc 5 of the through conductor; the connecting block 4 of the through conductor is bolted to the first joint 8;

[0045] S8, install the right side sealing plate of the four-way 11; fill SF6 into the four-way 11 to the rated pressure 0.4Mpa, and the pressure cable.

[0046] Through the reasonable setting of the through conductor, the same conductor 7 can be used to complete the single-phase pressure resistance, and the repeated disassembly and assembly of the bushing 3 is avoided, so that the operation is simple, the installation is convenient, time and labor are saved, the on-site emergency project implementation is facilitated, the application range is increased, and the work efficiency is improved.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will accord with the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A through-core conductor, characterized in that, It includes a connector (1), a connector hole (101) is provided in the middle of the connector (1); a number of touch fingers (2) are installed on the inner wall of the connector hole (101); a connector block (4) is provided at the upper end of the connector (1); and a connector plate (5) is provided at the lower end of the connector (1).

2. The through-core conductor according to claim 1, characterized in that, Two guide sleeves (6) are also provided inside the connecting hole (101); the two guide sleeves (6) are respectively provided on both sides of the axial direction of several touch fingers (2).

3. The through-core conductor according to claim 2, characterized in that, The connecting block (4) is provided with a threaded blind hole (401); the connecting plate (5) is provided with a connecting through hole (501).

4. The through-core conductor according to claim 3, characterized in that, The connecting block (4) has a first shielded connection hole (402) in the middle; the connecting plate (5) has a second shielded connection hole (502) in the middle.

5. A pressure-resistant tooling, characterized in that, The device includes the through-core conductor as described in any one of claims 1-4; the pressure-resistant fixture also includes a conductor (7); the upper end of the conductor (7) is connected to a T-shaped connecting plate (15); the lower end of the conductor (7) is threaded with a first connector (8); the first connector (8) is connected to a connecting block (4) by bolts; a second connector (9) is inserted into the connecting hole (101); the second connector (9) abuts against a contact finger (2); the end of the second connector (9) away from the connecting hole (101) is connected to an insulator (10); the insulator (10) is installed at the left interface of the four-way (11); the conductor (7) is inserted into the four-way (11) from the upper interface of the four-way (11).

6. The pressure-resistant tooling according to claim 5, characterized in that, The pressure-resistant fixture also includes a third connector (12); one end of the third connector (12) is connected to the connecting plate (5) by bolts; the end of the third connector (12) away from the connecting plate (5) is installed on the plum blossom contact (13); the plum blossom contact (13) is installed at the lower end interface of the four-way (11).

7. The pressure-resistant tooling according to claim 6, characterized in that, The pressure-resistant fixture also includes a shield (14).

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