Bus socket electrical performance rapid test joint
Through the busbar socket electrical performance rapid test connector, the problems of inconvenience in operation and equipment damage in the existing technology are solved, and simple and efficient electrical performance tests are achieved, equipment integrity is protected, and various electrical performance test requirements are met.
Patent Information
- Application Number
- CN202420062196.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-01-11
AI Technical Summary
When conducting electrical performance tests of bus sockets, the prior art is inconvenient to operate, the equipment is large in size, inconvenient to carry, and it is easy to damage the equipment and cannot be used on site, or it is complicated to operate, has invisible damage to the equipment, and the fixing force is insufficient, so the experimental performance cannot be guaranteed.
A quick test connector for electrical performance of busbar sockets is designed, including test connectors, booster rods and stress control units. The gripping contacts are connected to the static contacts of busbar sockets, and the movement is restricted by limiting the movement, achieving simple and safe electrical performance tests.
It realizes simple and efficient electrical performance tests in the insulated ring cabinet production plant and on site, protects equipment integrity, meets various electrical performance test requirements, and improves operating speed and safety.
Smart Images
Figure CN223181411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to cable accessory technology and switchgear inspection technology used in power cable projects. Specifically, it relates to on-site or factory electrical performance testing technology for 35kV and below air-insulated ring main unit (RMU), SF6 gas-insulated RMU, environmentally friendly gas-insulated RMU, solid-insulated RMU, and atmospheric-sealed air-insulated RMU, with inner-cone structure side-expanded busbar sockets. Background Art
[0002] At present, when the insulating ring network cabinet (box) is subjected to various electrical performance tests by connecting the busbar socket (hereinafter referred to as the busbar socket) through the side expansion of the inner cone structure insulating ring network cabinet (box), the test method mainly uses an independent external fixed bracket to fix the test equipment connected with the power cable, power cable connector, and power cable connector to the inner cone structure busbar connector on the busbar socket for testing. The external bracket used may need to be additionally fixed with large equipment, which is inconvenient to operate and difficult to move. The equipment required for this test method is bulky and inconvenient to carry. It is only suitable for use in a small range in the factory laboratory and cannot be used on the insulating ring network cabinet (box) site; or when in use, it is necessary to partially remove the busbar socket fixing screws that have been installed on the insulating ring network cabinet (box) box during the production process, use the empty screw holes to fix the external bracket, and then use the bracket to fix the test equipment on the busbar socket for testing. After the test is completed, remove the bracket, reinstall the fixing screws and re-fix the busbar socket. This test method is complicated to operate, has low work efficiency, and has high technical requirements for operators. It also destroys the already assembled and sealed insulating ring network cabinet (box), which can easily cause invisible damage to the insulating ring network cabinet (box) and leave quality risks. Alternatively, when in use, the elastic contact is connected to the static contact inside the bus socket, and the elastic contact is used to squeeze the test equipment to generate friction to fix the test equipment. Although this operation method is simple to operate, the friction generated by the elastic contact squeezing the test equipment is too small to apply sufficient pressure to the test equipment to ensure better experimental performance.
[0003] Therefore, there is a need for a test equipment that is simple and efficient to operate and can safely and reliably perform various electrical performance tests on the side expansion connection busbar of the inner cone structure insulated ring network cabinet (box) both in the insulated ring network cabinet (box) production plant and on-site. Summary of the Invention
[0004] The purpose of the utility model is to provide a busbar socket electrical performance quick test connector to solve the technical problem of being able to use a simple and reasonable structure device in the production plant of the insulating ring network cabinet (box) and the use site to conduct electrical performance tests on the busbar socket connected to the side expansion of the inner cone structure insulating ring network cabinet (box) safely, reliably and easily operated.
[0005] To achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:
[0006] The quick test joint for the electrical performance of the busbar socket includes a test joint 1, a boosting rod 2, and a stress control unit 3. One end of the test joint 1 is formed into an insertion interface 14 that can be connected and matched with the inner conical surface 42 of the busbar socket for insulating and sealing the busbar socket, and the other end is provided with a stress control unit 3; the boosting rod 2 consists of a grasping moving contact 21, a conductive rod 23, and a limiter 22. The boosting rod 2 passes through the test joint, with one end processed into a grasping moving contact 21 that is connected to the static contact 41 of the busbar socket by shape grasping, and the other end processed into a limiter 22 that abuts and restricts the movement of the test joint 1. The grasping moving contact 21 and the limiter 22 are connected by the conductive rod 23 to form the whole boosting rod 2.
[0007] The test joint 1 is composed of a main insulation layer 12, or composed of a main insulation layer 12 and an inner grading layer 13, or further composed of an outer shielding layer 11, a main insulation layer 12, and an inner grading layer 13.
[0008] A support tube 15 is installed inside the test joint 1.
[0009] The test joint 1 and the stress control unit 3 can be an integral structure or a split structure.
[0010] The grasping moving contact 21 at one end of the boosting rod 2 is connected to the static contact 41 of the busbar socket by shape grasping, and the limiter 22 in the middle abuts against the test joint 1 to restrict the movement of the test joint 1. The conductive rod 23 connects the grasping moving contact 21 and the limiter 22 to form the whole boosting rod 2.
[0011] The shape of the grasping moving contact 21 is a shape that is firmly connected to the static contact 41 of the busbar socket by shape grasping.
[0012] The grasping moving contact 21 and the conductive rod 23 can be an integral structure or a split structure.
[0013] The limiter 22 and the conductive rod 23 can be an integral structure or a split structure. The shape of the limiter 22 is such that it can achieve the shape of abutting and restricting the test joint.
[0014] The position where the limiter 22 abuts against the test joint 1 can be either at the outer tail section of the test joint 1, i.e., at the stress control unit end, or in the middle section inside the test joint 1.
[0015] The stress control unit 3 consists of an insulation layer 31 and a stress cone 32. The shape of the stress cone 32 can be the stress cone and stress terminal commonly used in the power cable terminal, and the material is a semiconductor stress material.
[0016] The insulating umbrella skirt 33 on the stress control unit 3 is an integral or separate structure with the stress control unit 3. The number of insulating umbrella skirts 33 can be increased or decreased according to the test requirements.
[0017] After the utility model adopts the above structure, various electrical performance test items including withstand voltage, partial discharge, current-carrying, etc. can be realized for the side-expanded connection bus socket of the insulating ring main switchgear (box) with an inner cone structure of 35 kV (including) and below. Its advantages and positive effects are as follows:
[0018] 1. It can easily meet the test voltage requirements: A shielding device can be covered outside the test joint, and there is no need to consider the withstand voltage distance requirements between phases of the bus socket and between the bus socket and the ground.
[0019] 2. Simple and quick installation: The test joint, the boosting rod and the stress control unit can all be prefabricated in the factory, with high reliability. During use, only ensure clean lubrication and the boosting rod is installed and fixed in place. There are no complex technical requirements, which can greatly improve the test speed.
[0020] 3. Safe: During use, only need to fix the test joint with the boosting rod, and there is no need to perform additional disassembly and assembly operations on the insulating ring main switchgear equipment, which will not cause any impact on the equipment and effectively protects the equipment. Description of the Drawings
[0021] Figure 1-1 It is a schematic structural diagram of the test joint of the utility model;
[0022] Figure 1-2 It is Figure 1-1 A sectional view taken along the A-A direction of
[0023] Figure 2-1 It is a schematic structural diagram of the boosting rod of the utility model;
[0024] Figure 2-2 It is Figure 2-1 A sectional view taken along the A-A direction of
[0025] Figure 3-1 It is a schematic structural diagram of the stress control unit of the utility model;
[0026] Figure 3-2 It is Figure 3-1 The right view of
[0027] Figure 3-3 It is Figure 3-1 A sectional view taken along the A-A direction of
[0028] Figure 4-1 It is a schematic structural diagram of the side-expanded connection bus socket of the insulating ring main switchgear of the utility model;
[0029] Figure 4-2 It isFigure 4-1 Right view of
[0030] Figure 4-3 is Figure 4-1 Cross-sectional view of along the A-A direction.
[0031] Figure 5-1 Schematic structural diagram after combination of the present utility model;
[0032] Figure 5-2 is Figure 5-1 Cross-sectional view of along the A-A direction.
[0033] Figure 6-1 Schematic structural diagram after combined installation of the present utility model and the busbar socket.
[0034] Figure 6-2 is Figure 6-1 Cross-sectional view of along the A-A direction. Specific embodiments
[0035] The present utility model will be further described in detail below with reference to the accompanying drawings.
[0036] See Figure 1-1 、 Figure 1-2 、 Figure 2-1 、 Figure 2-2 、 Figure 3-1 、 Figure 3-2 、 Figure 3-3 、 Figure 5-1 、 Figure 5-2 As shown in , the utility model is composed of a test joint 1, a boosting rod 2 and a stress control unit 3.
[0037] The test joint 1 shown in Figure 1 is molded from rubber material, with a support tube 15 pre-installed inside. The outer shielding layer 11 and the inner grading layer 13 can be realized by prefabricating conductive rubber or spraying conductive paint. The main insulation layer 12 and the insertion interface 14 are molded from high-performance insulating rubber.
[0038] Refer to Figure 1-1 、 Figure 1-2 As shown in , the test joint 1 can be used alone without installing the support tube 15.
[0039] See Figure 2-1 、 Figure 2-2 As shown in , the boosting rod 2 is machined from metal material. One end is machined into a gripping moving contact 21 that is connected to the static contact 41 of the busbar socket by shape gripping, and the other end is machined into a stopper 22 that abuts against and restricts the movement of the test joint. The gripping moving contact 21 and the stopper 22 are connected as a whole by a conductive rod 23. The material requirements, diameter size, and overall length of the boosting rod 2 can be selected according to the test requirements.
[0040] SeeFigure 2-1 、 Figure 2-2 The gripping movable contact 21 of the boost rod 2 shown in the figure can be in any shape that can be gripped and fastened to the busbar socket static contact 41. The gripping movable contact 21 and the conductive rod 23 can be integral or separate.
[0041] See also Figure 2-1 、 Figure 2-2 The limiter 22 of the boost rod 2 shown can be made of any material, can be processed at any position on the boost rod 2, and can be shaped in any way that can tightly restrict the movement of the test joint.
[0042] See also Figure 3-1 、 Figure 3-2 、 Figure 3-3 The stress control unit 3 shown is composed of an insulating layer 31 and a stress cone 32. The stress cone 32 can be of various types. The insulating sheds 33 can be prefabricated with the stress terminal or with the test connector 1. The specific number of sheds can be increased or decreased according to the test voltage level.
[0043] The test joint 1, the stress control unit 3 and the insulating shed 33 can be pre-assembled together before leaving the factory or assembled on site. The test joint 1 can be used alone without installing the stress control unit 3.
[0044] See also Figure 6-1 Figure 6-2 As shown, when conducting an electrical performance test on a ring main unit (RMU) through a busbar socket, first clean and lubricate the outer conical surface of the test connector 1's plug-in interface 14 and the inner conical surface 42 of the busbar socket. Then, secure the end of the moving contact 21 of the boost rod 2 to the static contact 41 of the busbar socket. Insert the test connector 1's plug-in interface 14 into the busbar socket through the boost rod 2. Finally, tighten the upper limiter 22 on the boost rod 2 to restrict the test connector 1 from moving. The electrical performance test device is now installed. Simply connect the test power supply to the boost rod 2 to perform the required electrical performance test on the busbar socket.
[0045] Reference Figure 4- 、 、 As shown in FIG. 1 , a schematic diagram of the structure of a new type of insulating ring main unit side expansion connection bus socket is shown, in which 41 is a static contact and 42 is an inner cone surface.
[0046] The above-described implementation method is one of the implementation cases of the present invention and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. Quick test joint for electrical performance of busbar socket, comprising a test joint (1), a boosting rod (2) and a stress control unit (3), characterized in that, One end of the test joint (1) is formed into an insertion interface (14) that can be connected and mated with the inner conical surface (42) of the busbar socket for insulating and sealing the busbar socket, and a stress control unit (3) is provided at the other end; the boosting rod (2) consists of a gripping moving contact (21), a conductive rod (23), and a stopper (22). The boosting rod (2) passes through the test joint. One end is processed into a gripping moving contact (21) that is connected to the static contact (41) of the busbar socket by shape gripping, and one end is processed into a stopper (22) that abuts against and restricts the movement of the test joint (1). The gripping moving contact (21) and the stopper (22) are connected by the conductive rod (23) to form the boosting rod (2) as a whole.
2. The quick test joint for the electrical performance of the busbar socket according to claim 1, characterized in that The test joint (1) consists of a main insulation layer (12), or consists of a main insulation layer (12) and an inner grading layer (13), or consists of an outer shielding layer (11), a main insulation layer (12), and an inner grading layer (13).
3. The quick test joint for the electrical performance of the busbar socket according to claim 1, characterized in that, A support tube (15) is installed inside the test joint (1).
4. The quick test joint for the electrical performance of the busbar socket according to claim 1, characterized in that The test joint (1) and the stress control unit (3) can be an integral structure or a split structure.
5. The quick test joint for the electrical performance of the busbar socket according to claim 1, characterized in that, The gripping moving contact (21) at one end of the boosting rod (2) is connected to the static contact (41) of the busbar socket by shape gripping, and the stopper (22) at one end abuts against the test joint (1) to restrict the movement of the test joint (1). The conductive rod (23) connects the gripping moving contact (21) and the stopper (22) to form the boosting rod (2) as a whole.
6. The quick test joint for the electrical performance of the busbar socket according to claim 1, characterized in that The shape of the gripping moving contact (21) is a shape that is connected and fastened to the static contact (41) of the busbar socket by shape gripping; the gripping moving contact (21) and the conductive rod (23) can be an integral structure or a split structure.
7. The quick test joint for the electrical performance of the busbar socket according to claim 1, characterized in that, The stopper (22) and the conductive rod (23) can be an integral structure or a split structure; the shape of the stopper (22) is a shape that can achieve the purpose of abutting against and restricting the movement of the test joint.
8. The quick test joint for the electrical performance of the busbar socket according to claim 7, characterized in that, The position where the stopper (22) abuts against the test joint (1) can be in the middle section inside the test joint (1) or in the tail section outside the test joint (1), that is, at the stress control unit end.
9. The quick test joint for the electrical performance of the busbar socket according to claim 1, characterized in that The stress control unit (3) consists of an insulating layer (31) and a stress cone (32). The shape of the stress cone (32) can be the stress cone and stress terminal commonly used in the power cable terminal, and the material is a semiconductor stress electric material.
10. The quick test joint for the electrical performance of the busbar socket according to claim 1, characterized in that, The insulating umbrella skirt (33) on the stress control unit (3) and the stress control unit (3) can be an integral structure or a split structure. The number of insulating umbrella skirts (33) can be increased or decreased according to the test requirements.