A 500kV cable accessories factory test and inspection platform

Abstract

The present invention belongs to the field of cable accessory detection, and specifically relates to a 500kV cable accessory factory test detection platform. It includes two damping devices and an intermediate connecting busbar, the damping device is connected to the disconnector through the intermediate connecting busbar, a fixed GIS terminal is installed on the disconnector, an accessory installation assembly is provided at one end close to the fixed GIS terminal detection port, a slide plate 4, a slide plate 3, a slide plate 2 and a slide plate 1 are slidably installed in sequence at one end of the slide bar close to the fixed GIS terminal detection port, and a rotatable strong magnet is installed at the bottom of the slide plate 4, the slide plate 3, the slide plate 2 and the slide plate 1. In the process of detection of the present invention, the strong magnets at the bottom of the slide plate 1, the slide plate 2, the slide plate 3 and the slide plate 4 attract each other with opposite sexes, so that the slide plate 1, the slide plate 2, the slide plate 3 and the slide plate 4 are temporarily connected into a whole, thereby ensuring the connection stability between the two cable bodies and improving the anti-interference ability of the equipment under working state.

Description

Technical Field

[0001] The invention belongs to the field of cable accessory detection, and in particular relates to a 500kV cable accessory factory test detection platform. Background Art

[0002] Cable accessories are the general term for cable terminals and connectors, which are essential components of cable lines. Cable terminals are installed at the end of cable lines to connect cables to other electrical equipment; cable connectors are installed between cables to connect two or more cables to achieve power transmission.

[0003] In the prior art, when conducting a withstand voltage test on cable accessories, the stress cone and the cable connector can be tested simultaneously. For example, the patent with announcement number: CN209327503U mainly fixes the input end side GIS stress cone through the input end side clamping cone cylinder assembly, the input end side top cone cylinder assembly and the input end side cone support cylinder, and then fixes the tail end side GIS stress cone and the insulating connector in turn, and finally uses the two middle section cylinder assemblies to move relative to each other to achieve the connection between the input end side cable and the tail end side cable. The installation method of the stress cone in the above scheme is cumbersome, and the stress cone is inconvenient to maintain due to the large number of cylinders. Secondly, during the inspection of the stress cone and the connector, the transformer will generate vibration when working, and the vibration may be transmitted to the detection equipment through the high-voltage lead conductor connecting rod, thereby affecting the connection between the cables, which is easy to cause the cable connector to separate, resulting in equipment failure and shutdown, and problems with the detection data. Summary of the invention

[0004] The purpose of the present invention is to provide a 500kV cable accessories factory test and detection platform to solve the technical problems in the prior art in view of the shortcomings of the prior art.

[0005] The object of the present invention can be achieved by the following technical scheme: a 500kV cable accessory factory test and detection platform, which includes two damping devices and an intermediate connecting busbar, the two damping devices are respectively connected to the gas transformer and the capacitor voltage divider, the damping device is connected to the disconnector through the intermediate connecting busbar, a fixed GIS terminal is installed on the disconnector, and a sliding rod is provided at one end close to the fixed GIS terminal detection port, and an accessory installation assembly is slidably installed on the sliding rod;

[0006] Slide plate 4, slide plate 3, slide plate 2 and slide plate 1 are slidably installed in sequence on one end of the slide bar close to the fixed GIS terminal detection port, a movable sliding GIS terminal is installed on slide plate 1, and accessory installation components are installed on slide plate 4, slide plate 3 and slide plate 2. Two isolation plates are installed at the bottom of slide plate 4, slide plate 3, slide plate 2 and slide plate 1, and a rotatable strong magnet is installed between the two isolation plates.

[0007] As a further optimization or improvement of the present solution, the accessory mounting assembly includes two cable bodies and an arc plate, a cable body is mounted on the slide plate two, another cable body is mounted on the slide plate four, and the arc plate is mounted on the slide plate three, and the two ends of the cable body are respectively provided with detection contacts and connecting contacts, and the connecting contacts on the two cable bodies are mounted close to the arc plate.

[0008] As a further optimization or improvement of this solution, limit plates are installed at both ends of the arc plate, and the limit plates are opened. A cable connector is placed on the arc plate, and the limit plates abut against both ends of the cable connector, and the cable connector is connected to the through hole.

[0009] As a further optimization or improvement of this solution, an annular groove is provided on the detection port of the fixed GIS terminal and the sliding GIS terminal, a special-shaped ring is rotatably installed in the annular groove, a pull rod is installed on the outer circle of the special-shaped ring, a stop block is slidably installed in the annular groove, the stop block and the inner wall of the annular groove are connected by a spring, and the inner circle of the special-shaped ring abuts the stop block.

[0010] As a further optimization or improvement of this solution, the detection ports of the fixed GIS terminal and the sliding GIS terminal are installed with stress cones and epoxy sleeves in sequence, and a pressing cone mechanism is installed on the detection contact, which squeezes the epoxy sleeve, and the detection contacts on the two cable bodies are respectively inserted into the detection ports of the fixed GIS terminal and the sliding GIS terminal.

[0011] As a further optimization or improvement of this solution, the slide bar is installed on a mounting frame, a motor is installed on the mounting frame, the output end of the motor is coaxially connected to the lead screw, and the slide plate is transmission-connected to the lead screw.

[0012] As a further optimization or improvement of the present solution, mounting plates are respectively installed on the side walls of the mounting frame, a plurality of telescopic heads are installed on the mounting plates, and the slide plate two, slide plate three and slide plate four are respectively abutted against the telescopic heads.

[0013] As a further optimization or improvement of the present solution, support frames are installed on the slide plate 2 and the slide plate 4, the cable bodies are fixedly installed on the support frames, and the two cable bodies are connected to the gas transformer.

[0014] Beneficial effects of the present invention:

[0015] (1) During the detection process of the present invention, the strong magnets at the bottom of the slide plate 1, the slide plate 2, the slide plate 3 and the slide plate 4 attract each other, so that the slide plate 1, the slide plate 2, the slide plate 3 and the slide plate 4 are temporarily connected into a whole, thereby ensuring the connection stability between the two cable bodies and improving the anti-interference ability of the equipment in the working state.

[0016] (2) When the present invention installs the cable accessories, when the slide plate 1 moves and approaches the slide plate 2, the strong magnets at the bottom of the slide plate 1 and the slide plate 2 attract each other, so that the slide plate 2 drives the cable body thereon to move toward the slide plate 1. At this time, the slide plate 1 and the slide plate 2 move toward each other, so that the cable body on the slide plate 2 can move toward the sliding GIS terminal with a certain initial velocity, so that the pressing cone mechanism on the cable body can press the stress cone tightly through the epoxy sleeve. When the slide plate 1 and the slide plate 2 are connected by the strong magnet, the connectivity between the detection contact and the stress cone is high, and the influence of the vibration generated by the external gas transformer during operation on the connection between the detection contact and the stress cone is reduced.

[0017] (3) After the cable accessory detection is completed, the motor drives the slide plate 1 to move, and the slide plate 1 drives the slide plate 2, the slide plate 3 and the slide plate 4 to move synchronously, so that one end of the detection contact of the cable body on the slide plate 4 is separated from the test port of the fixed GIS terminal. When the slide plate 1 drives the slide plate 2, the slide plate 3 and the slide plate 4 to pass through the first telescopic head, the first telescopic head is pressed. When the tail end of the slide plate 4 passes through the first telescopic head, the steering motor at the bottom of the slide plate 4 drives the strong magnet to rotate, so that the original state of opposite attraction between the slide plate 3 and the slide plate 4 is changed to the state of like repulsion, so that the slide plate 4 is separated from the slide plate 3. At the same time, the connection contact on the slide plate 4 is separated from the through hole. In the process of the slide plate 4 sliding away from the slide plate 3, the first telescopic head limits the slide plate 4. In the above manner, the slide plate 3 and the slide plate 2, and the slide plate 2 and the slide plate 1 are separated respectively. The present invention drives the strong magnet to rotate by the steering motor, so that the original state of opposite attraction between the two adjacent slide plates is changed to the state of like repulsion, so that the two adjacent slide plates move in opposite directions respectively, accelerates the separation of the components on the adjacent slide plates, improves the separation efficiency of each component, and thus improves the overall working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a top view of the overall structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the structures of skateboard two, skateboard three and skateboard four.

[0022] Figure 4 It is a schematic diagram of the bottom structure of skateboard two, skateboard three and skateboard four.

[0023] Figure 5 Schematic diagram of stress cone installation.

[0024] Figure 6 This is a cross-sectional view of the detection port of the sliding GIS terminal.

[0025] Figure 7 Schematic diagram of the installation position of two stress cones and cable connector.

[0026] The following are marked in the figure: 1. gas transformer; 2. damping device; 3. capacitor voltage divider; 4. intermediate connecting busbar; 5. isolating switch; 6. fixed GIS terminal; 7. accessory installation assembly; 71. support frame; 72. cable body; 73. detection contact; 74. connecting contact; 75. cone pressing mechanism; 76. limit plate; 77. arc plate; 78. through hole; 8. sliding GIS terminal; 9. mounting frame; 10. motor; 11. slide rod; 12. screw rod; 13. slide plate one; 14. slide plate two; 15. slide plate three; 16. slide plate four; 17. mounting plate; 18. telescopic head; 19. isolation plate; 20. strong magnet; 21. steering motor; 22. pull rod; 23. stress cone; 24. epoxy sleeve; 25. annular groove; 26. special-shaped ring; 27. stop block; 28. spring; 29. ​​cable connector. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 7 A 500kV cable accessory factory test and detection platform, comprising two damping devices 2 and an intermediate connecting busbar 4, wherein the two damping devices 2 are respectively connected to a gas transformer 1 and a capacitive voltage divider 3, and the damping device 2 is connected to an isolating switch 5 through the intermediate connecting busbar 4, and a fixed GIS terminal 6 is installed on the isolating switch 5, and a sliding rod 11 is provided at one end close to a detection port of the fixed GIS terminal 6, and an accessory installation assembly 7 is slidably installed on the sliding rod 11;

[0029] A slide plate 4 16, a slide plate 3 15, a slide plate 2 14 and a slide plate 13 are slidably installed in sequence on one end of the slide bar 11 near the detection port of the fixed GIS terminal 6. A movable sliding GIS terminal 8 is installed on the slide plate 13. An accessory installation component 7 is installed on the slide plate 4 16, the slide plate 3 15 and the slide plate 2 14. Two isolation plates 19 are installed at the bottom of the slide plate 4 16, the slide plate 3 15, the slide plate 2 14 and the slide plate 13, and a rotatable strong magnet 20 is installed between the two isolation plates 19.

[0030] It should be noted that the present invention adopts SF6 insulated armored metal sealed combined electrical structure to replace the traditional oil-immersed high-voltage test equipment, miniaturizes and integrates the components such as gas transformer 1, damping device 2, capacitor voltage divider 3, disconnector 5, etc., and uses fixed GIS terminal 6 and sliding GIS terminal 8 to dock with accessory installation assembly 7, saving assembly time and reducing equipment footprint, thereby forming a fully enclosed and fully insulated test and detection platform; gas transformer 1, damping device 2, capacitor voltage divider 3, intermediate connecting bus 4 and disconnector 5 are assembled and connected through pot insulators. The function of capacitor voltage divider 3 is mainly used to measure AC high voltage, and can divide the voltage into different parts in the circuit, thereby realizing simultaneous measurement of multiple groups of cable accessories; the gas transformer 1 is connected to two cable bodies 72 and provides working voltage for the cable bodies 72; the function of damping device 2 is mainly to reduce resonance and improve the overall stability and reliability of the high-voltage device.

[0031] It should be noted that due to the large bottom area of ​​skateboard three 15, isolation plates 19, strong magnets 20 and steering motors 21 are provided at both ends of the bottom of skateboard three 15, and the isolation plates 19 are provided on three sides to block the interference of the two strong magnets 20 at the bottom of skateboard three 15, ensuring that the two strong magnets 20 on the bottom of skateboard three 15 can only interact with the strong magnets 20 on skateboard two 14 and skateboard four 16; the isolation plates 19 at the bottom of skateboard two 14, skateboard four 16 and skateboard one 13 are all provided on two sides, and the isolation plates 19 on both sides can isolate the influence of the strong magnets 20 on the detection equipment.

[0032] Specifically, the slide bar 11 is installed on the mounting frame 9, and the motor 10 is installed on the mounting frame 9. The output end of the motor 10 is coaxially connected to the screw rod 12, and the slide plate 13 is transmission-connected to the screw rod 12.

[0033] See also Figure 3-Figure 4 The slide plate 2 14 and the slide plate 4 16 are both installed with a support frame 71, and the cable body 72 is fixedly installed on the support frame 71, and the two cable bodies 72 are connected to the gas transformer 1.

[0034] In actual use, it is necessary to first place the two stress cones 23 to be tested in the test ports of the fixed GIS terminal 6 and the sliding GIS terminal 8, respectively, and fix the stress cones 23 in the test ports with the epoxy sleeve 24, then place the cable connector 29 on the arc plate 77, align the cable connector 29 with the through hole 78, and install the cable connector 29 between the limit plates 76, which can limit the cable connector 29;

[0035] Start the motor 10, and drive the sliding GIS terminal 8 on the slide plate 1 13 to move through the screw rod 12. When the slide plate 13 moves and approaches the slide plate 2 14, the strong magnets 20 at the bottom of the slide plate 13 and the slide plate 2 14 attract each other, so that the slide plate 2 14 drives the cable body 72 thereon to move toward the slide plate 1 13. When the slide plate 1 13 contacts the slide plate 2 14, the strong magnets 20 on the slide plate 13 and the slide plate 2 14 attract each other, and at this time, the pressing cone mechanism 75 presses the sliding GIS terminal through the epoxy sleeve 24. 8 is pressed, and the detection contact 73 is inserted into the test port of the sliding GIS terminal 8 and contacts the stress cone 23. At this time, one of the stress cones 23 is installed; as the slide plate 13 moves, the slide plate 13 drives the slide plate 2 14 to move synchronously. When the slide plate 2 14 gradually approaches the slide plate 3 15, the slide plate 2 14 contacts the slide plate 3 15, and the strong magnets 20 on the slide plate 2 14 and the slide plate 3 15 attract each other. At this time, the connection contact 74 on the cable body 72 is inserted into the cable connector through the through hole 78. 29, as the slide plate 13 moves, the slide plate 13 drives the slide plate 2 14 and the slide plate 3 15 to move synchronously. When the slide plate 3 15 approaches the slide plate 4 16, the strong magnets 20 on the slide plate 3 15 and the slide plate 4 16 attract each other, and the cable body 72 on the slide plate 4 16 approaches the slide plate 3 15. The connecting contact 74 on the cable body 72 penetrates the through hole 78 and is inserted into the cable connector 29, so that the connecting contacts 74 on the two cable bodies 72 are connected. At this time, the installation of the cable connector 29 is completed; as the slide plate 13 continues to move, the slide plate 13 drives the slide plate 2 14, the slide plate 3 15 and the slide plate 4 16 to move synchronously, so that the cable body 72 on the slide plate 4 16 moves close to the fixed GIS terminal 6, and the detection contact 73 on the cable body 72 presses the stress cone 23 through the epoxy sleeve 24 in the fixed GIS terminal 6. At the same time, the detection contact 73 on the cable body 72 is inserted into the test port of the fixed GIS terminal 6 and connected to the cable body 72. At this time, the installation of another stress cone 23 is completed, and the cable accessories are installed;

[0036] The gas transformer 1 is started, and connected to the two cable bodies 72 through the gas transformer 1. The gas transformer 1 transmits high voltage electricity to the two cable bodies 72, and then the pressure resistance of the cable accessories is tested. During the test, the strong magnets 20 at the bottom of the slide plate 13, the slide plate 214, the slide plate 315 and the slide plate 416 attract each other with opposite sexes, so that the slide plate 13, the slide plate 214, the slide plate 315 and the slide plate 416 are temporarily connected into a whole, thereby ensuring the connection stability between the two cable bodies 72 and improving the anti-interference ability of the equipment under working state.

[0037] See also Figure 3-Figure 4The accessory mounting assembly 7 includes two cable bodies 72 and an arc plate 77. A cable body 72 is mounted on the slide plate 2 14 , another cable body 72 is mounted on the slide plate 4 16 , and an arc plate 77 is mounted on the slide plate 3 15 . The two ends of the cable body 72 are respectively provided with a detection contact 73 and a connecting contact 74 . The connecting contacts 74 on the two cable bodies 72 are mounted close to the arc plate 77 .

[0038] Specifically, the arc plate 77 is installed with limit plates 76 at both ends, and the limit plates 76 are provided with through holes 78 . The cable connector 29 is placed on the arc plate 77 , and the limit plates 76 abut against both ends of the cable connector 29 , and the cable connector 29 is connected to the through holes 78 .

[0039] It should be noted that, during the inspection of the two cable bodies 72 , the sliding GIS terminal 8 and the fixed GIS terminal 6 are filled with SF6 protective gas.

[0040] See also Figure 6 An annular groove 25 is provided on the detection port of the fixed GIS terminal 6 and the sliding GIS terminal 8, a special-shaped ring 26 is rotatably installed in the annular groove 25, a pull rod 22 is installed on the outer circle of the special-shaped ring 26, a stop block 27 is slidably installed in the annular groove 25, the stop block 27 and the inner wall of the annular groove 25 are connected by a spring 28, and the inner circle of the special-shaped ring 26 abuts against the stop block 27.

[0041] Specifically, the detection ports of the fixed GIS terminal 6 and the sliding GIS terminal 8 are installed with stress cones 23 and epoxy sleeves 24 respectively, and the detection contact 73 is installed with a cone pressing mechanism 75, which squeezes the epoxy sleeve 24, and the detection contacts 73 on the two cable bodies 72 are respectively inserted into the detection ports of the fixed GIS terminal 6 and the sliding GIS terminal 8.

[0042] It should be noted that when the two stress cones 23 and the epoxy sleeve 24 are respectively installed on the test ports of the sliding GIS terminal 8 and the fixed GIS terminal 6, it is necessary to rotate the pull rod 22, and the pull rod 22 drives the special-shaped ring 26 to rotate. When the special-shaped ring 26 rotates, the inner circle of the special-shaped ring 26 will gradually press the block 27, so that the block 27 passes through the annular groove 25 to limit the epoxy sleeve 24, thereby achieving the purpose of fixing the epoxy sleeve 24 and the stress cone 23; similarly, when the pull rod 22 is rotated in the opposite direction, the spring 28 rebounds and drives the block 27 to move into the annular groove 25, so that the limit of the epoxy sleeve 24 by the block 27 is released.

[0043] See also Figure 3-Figure 4The side walls of the mounting frame 9 are respectively mounted with mounting plates 17, and a plurality of telescopic heads 18 are mounted on the mounting plates 17. The second slide plate 14, the third slide plate 15 and the fourth slide plate 16 are respectively abutted against the telescopic heads 18. The telescopic heads 18 that are first close to the fixed GIS terminal 6 are named first, second and third telescopic heads 18, respectively.

[0044] It should be noted that the telescopic head 18 can limit the position of the second slide 14, the third slide 15 and the fourth slide 16 respectively. In the process of installing the cable accessories, the motor 10 starts to drive the first slide 13 to move toward the fixed GIS terminal 6. When the first slide 13, the second slide 14, the third slide 15 and the fourth slide 16 are adjacent to each other through the strong magnet 20, the second slide 14, the third slide 15 and the fourth slide 16 are pushed by the first slide 13 to press the corresponding telescopic head 18, so that the telescopic head 18 is separated from the limit of the second slide 14, the third slide 15 and the fourth slide 16, thereby realizing the installation of the cable accessories. When the cable accessory detection is completed, the motor 10 drives the slide plate 13 to move, and the slide plate 13 drives the slide plate 2 14, the slide plate 3 15 and the slide plate 4 16 to move synchronously, so that one end of the detection contact 73 of the cable body 72 on the slide plate 4 16 is separated from the test port of the fixed GIS terminal 6. When the slide plate 13 drives the slide plate 2 14, the slide plate 3 15 and the slide plate 4 16 to pass through the first telescopic head 18, the first telescopic head 18 is pressed. When the slide plate 4 16 at the tail end passes through the first telescopic head 18, the steering motor 21 at the bottom of the slide plate 4 16 drives the strong magnet 20 to rotate 180°, so that the original state of opposite attraction between the slide plate 3 15 and the slide plate 4 16 changes to the state of like repulsion, so that the slide plate 4 16 is separated from the slide plate 3 15, and at the same time, the connection contact 74 on the slide plate 4 16 is separated from the through hole 78. When the slide plate 4 16 slides away from the slide plate 3 15, the first telescopic head 18 limits the slide plate 4 16.

[0045] As the slide plate 13 moves, when the slide plate 3 15 passes the second telescopic head 18, since the slide plate 3 15, the slide plate 2 14 and the slide plate 1 13 are in a connected state, the slide plate 3 15 can press the second telescopic head 18 down. When the slide plate 3 15 passes the second telescopic head 18, the steering motor 21 at the bottom of the slide plate 3 15 drives the strong magnet 20 to rotate, so that the original relationship between the opposite poles repelling each other between the slide plate 2 14 and the slide plate 3 15 is changed into the same poles repelling each other. Then the slide plate 3 15 slides away from the slide plate 2 14, and at the same time, the slide plate 2 The connecting contact 74 on the first slide 14 is disengaged from the through hole 78, and when the third slide 15 slides to the position of the second telescopic head 18, the third slide 15 stops sliding; as the first slide 13 moves, the first slide 13 drives the second slide 14 to cross the third telescopic head 18, and the steering motor 21 at the bottom of the second slide 14 drives the strong magnet 20 to rotate, so that the first slide 13 and the second slide 14 are repelled by the same sex, so that the detection contact 73 on the second slide 14 is disengaged from the sliding GIS terminal 8, and at this time, the two stress cones 23 and the cable connector 29 can be removed. The present invention drives the strong magnet 20 to rotate by the steering motor 21, so that the state of opposite sex attraction between the two adjacent slides is transformed into the state of like sex repulsion, so that the two adjacent slides move in opposite directions respectively, accelerate the separation of the components on the adjacent slides, improve the separation efficiency of each component, and thus improve the overall working efficiency of the equipment.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A 500kV cable accessories factory test and detection platform, characterized by: It comprises two damping devices (2) and an intermediate connecting busbar (4), the two damping devices (2) being connected to a gas transformer (1) and a capacitive voltage divider (3) respectively, the damping device (2) being connected to an isolating switch (5) via the intermediate connecting busbar (4), a fixed GIS terminal (6) being installed on the isolating switch (5), a sliding rod (11) being provided at one end close to a detection port of the fixed GIS terminal (6), and an accessory mounting assembly (7) being slidably mounted on the sliding rod (11); A slide plate 4 (16), a slide plate 3 (15), a slide plate 2 (14) and a slide plate 1 (13) are slidably mounted in sequence on one end of the slide bar (11) near the detection port of the fixed GIS terminal (6); a movable sliding GIS terminal (8) is mounted on the slide plate 1 (13); an accessory mounting assembly (7) is mounted on the slide plate 4 (16), the slide plate 3 (15) and the slide plate 2 (14); two isolation plates (19) are mounted on the bottom of the slide plate 4 (16), the slide plate 3 (15), the slide plate 2 (14) and the slide plate 1 (13); a rotatable strong magnet (20) is mounted between the two isolation plates (19); The accessory installation assembly (7) comprises two cable bodies (72) and an arc plate (77), one cable body (72) is installed on the second slide plate (14), another cable body (72) is installed on the fourth slide plate (16), and the arc plate (77) is installed on the third slide plate (15), the two ends of the cable body (72) are respectively a detection contact (73) and a connection contact (74), and the connection contacts (74) on the two cable bodies (72) are installed close to the arc plate (77); The detection ports of the fixed GIS terminal (6) and the sliding GIS terminal (8) are respectively installed with a stress cone (23) and an epoxy sleeve (24); the detection contact (73) is installed with a cone pressing mechanism (75); the cone pressing mechanism (75) presses the epoxy sleeve (24); and the detection contacts (73) on the two cable bodies (72) are respectively inserted into the detection ports of the fixed GIS terminal (6) and the sliding GIS terminal (8).

2. A 500kV cable accessories factory test and detection platform according to claim 1, characterized in that: Limiting plates (76) are installed at both ends of the arc plate (77), and through holes (78) are provided on the limiting plates (76). A cable connector (29) is placed on the arc plate (77), and the limiting plates (76) abut against both ends of the cable connector (29), and the cable connector (29) is connected to the through holes (78).

3. A 500kV cable accessories factory test and detection platform according to claim 1, characterized in that: An annular groove (25) is provided on the detection ports of the fixed GIS terminal (6) and the sliding GIS terminal (8), a special-shaped ring (26) is rotatably installed in the annular groove (25), a pull rod (22) is installed on the outer circle of the special-shaped ring (26), a stopper (27) is slidably installed in the annular groove (25), the stopper (27) and the inner wall of the annular groove (25) are connected by a spring (28), and the inner circle of the special-shaped ring (26) abuts against the stopper (27).

4. A 500kV cable accessories factory test and detection platform according to claim 1, characterized in that: The slide bar (11) is mounted on a mounting frame (9), a motor (10) is mounted on the mounting frame (9), an output end of the motor (10) is coaxially connected to a screw rod (12), and a slide plate (13) is transmission-connected to the screw rod (12).

5. A 500kV cable accessories factory test and detection platform according to claim 4, characterized in that: Mounting plates (17) are respectively mounted on the side walls of the mounting frame (9), a plurality of telescopic heads (18) are mounted on the mounting plates (17), and the second slide plate (14), the third slide plate (15) and the fourth slide plate (16) respectively abut against the telescopic heads (18).

6. A 500kV cable accessories factory test and detection platform according to claim 1, characterized in that: The second slide plate (14) and the fourth slide plate (16) are both mounted with a support frame (71), the cable body (72) is fixedly mounted on the support frame (71), the two cable bodies (72) are connected to the gas transformer (1), and the strong magnet (20) is connected to the steering motor (21).

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