Plug-in type test tool for lightning arrester

Abstract

The utility model discloses a plug-in type test tool for a lightning arrester. The plug-in type test tool comprises an external insulation conical cap, a limiting and fixing upper flange and a lower fixing flange plate, a high-voltage end electrode contact is arranged at the top end of the outer insulating conical cap; the limiting fixing upper flange is tightly connected with the bottom of the outer insulating conical cap; an electric hydraulic device is arranged on the lower fixed flange plate; the top end of the electric hydraulic device is connected with the insulating fixed top plate; the lightning arrester plug-in type test tool is reasonable in design, simple, convenient and rapid to disassemble and assemble, tight in contact and capable of effectively meeting the requirements of lightning arrester tests, the test efficiency is improved, and the lightning arrester plug-in type test tool can be widely applied to the field of lightning arresters and can be widely applied to the field of lightning arresters. And the safety and accuracy of the test process are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric high-voltage electrical appliances and relates to a plug-in test tool for a lightning arrester. Background Art

[0002] In today's growing power industry, the safety and stability of power generation systems are the key to ensuring the normal operation of the power grid. Among them, lightning arresters, as an indispensable component of the power system, have the main function of protecting electrical equipment from damage caused by lightning overvoltage and transient overvoltage. However, with the widespread use of power generation and the continuous expansion of the power grid, traditional plug-in lightning arresters have exposed some problems in practical applications, which have affected the safety and operation efficiency of the power system to a certain extent.

[0003] First of all, the test assembly process of plug-in arresters is relatively cumbersome. Due to the particularity of its design structure, it needs to meet higher sealing and insulation requirements during assembly, which not only increases the difficulty of assembly, but also increases the skill requirements for operators. In addition, frequent replacement and maintenance installation operations also bring a lot of workload, which brings certain troubles to the normal operation of the power system.

[0004] Secondly, lightning arresters are usually installed in open areas and are prone to lightning strikes. Since lightning arresters need to withstand frequent lightning strikes and voltage surges, they age quickly and therefore need to be replaced and tested regularly. This not only increases maintenance costs, but also affects the reliability of the power system.

[0005] Finally, in the on-site construction of power systems, the construction space is often limited, which makes the installation of lightning arresters more difficult. Traditional plug-in lightning arresters are often difficult to adapt to narrow construction spaces due to their large size and complex structure, thus affecting the construction progress and installation quality.

[0006] In summary, traditional plug-in lightning arresters have the problem of cumbersome installation in practical applications. These problems not only affect the safety and stability of the power system, but also increase maintenance costs and construction difficulty. Utility Model Content

[0007] The utility model provides a lightning arrester plug-in test tool to solve the problem of complicated installation of traditional plug-in lightning arresters in practical applications.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A plug-in test fixture for a lightning arrester comprises: an outer insulating cone cap, a limit fixing upper flange and a lower fixing flange; a high voltage terminal electrode contact is arranged on the top of the outer insulating cone cap; the limit fixing upper flange is tightly connected to the bottom of the outer insulating cone cap; an electric hydraulic device is arranged on the lower fixing flange, and the top of the electric hydraulic device is connected to an insulating fixing top plate; two insulating pull rods are connected to the radial edge of the lower fixing flange, and the other ends of the two insulating pull rods pass through the insulating fixing top plate and are connected to the limit fixing upper flange.

[0010] The insulating fixed top plate is connected with a lightning arrester, and the electric hydraulic device pushes the insulating fixed top plate to insert the lightning arrester into the outer insulating cone cap.

[0011] An electrode cone head is provided on the top of the arrester; after the electric hydraulic device pushes the insulating fixed top plate to insert the arrester into the outer insulating cone cap, the top of the electrode cone head is tightly connected with the high-voltage end electrode contact; the electrode cone head is a trapezoidal cylindrical structure; insulating silicone is provided on the side of the electrode cone head.

[0012] Furthermore, the outer insulating cone cap is a trapezoidal cylindrical structure.

[0013] Furthermore, the electric hydraulic device includes a push rod and a hydraulic control module, the push rod is fixedly connected to the insulating fixed top plate; the hydraulic control module controls the push rod to push the insulating fixed top plate to move; the hydraulic control module is arranged at the lower part of the push rod, and the hydraulic control module is fixedly connected to the lower fixed flange.

[0014] Furthermore, the insulating pull rods are symmetrically arranged on the lower fixed flange along the axial direction.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a lightning arrester plug-in test fixture, which forms a stable limit fixing structure through the close connection between the upper limit fixing flange and the bottom of the outer insulating cone cap, and the connection with the lower fixed flange through the insulating pull rod; the whole test fixture is made of insulating material, including the outer insulating cone cap, the insulating pull rod, and the insulating fixed top plate, which ensures the insulation during the test and the safety and stability of the power system; the electric hydraulic device arranged on the lower fixed flange can flexibly adjust the height and position of the insulating fixed top plate according to the test needs to adjust the height and position of the lightning arrester, complete the installation of the lightning arrester, and the disassembly and installation are simple and quick; it effectively solves the problems of time-consuming and labor-intensive installation and cumbersome installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a plug-in test fixture for a lightning arrester of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the lightning arrester of the utility model.

[0020] Among them: 1-external insulating cone cap; 2-high voltage end electrode contact; 3-limiting fixed upper flange; 4-insulating pull rod; 5-insulating fixed top plate; 6-electric hydraulic device; 7-lower fixed flange; 8-lightning arrester. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and marked in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] The utility model is further described in detail below with reference to the accompanying drawings:

[0028] See also Figure 1 The utility model discloses a plug-in test fixture for a lightning arrester, comprising an outer insulating cone cap 1, a limit fixing upper flange 3 and a lower fixing flange 7.

[0029] The outer insulating cone cap 1 is a trapezoidal cylindrical structure, and a high-voltage terminal electrode contact 2 is arranged on the top of the outer insulating cone cap 1; the limiting fixing upper flange 3 is tightly connected to the bottom of the outer insulating cone cap 1.

[0030] An electric hydraulic device 6 is arranged on the lower fixed flange 7, and the electric hydraulic device 6 includes a push rod and a hydraulic control module. The push rod is fixedly connected to the insulating fixed top plate 5; the hydraulic control module controls the push rod to push the insulating fixed top plate 5 to move; the hydraulic control module is arranged at the lower part of the push rod, and the hydraulic control module is fixedly connected to the lower fixed flange 7; two insulating pull rods 4 are connected to the radial edge position of the lower fixed flange 7, and the other ends of the two insulating pull rods 4 pass through the insulating fixed top plate 5 and are connected to the limit fixing upper flange 3; the insulating pull rods 4 are symmetrically arranged along the axial direction of the lower fixed flange 7.

[0031] The insulating fixed top plate 5 is connected to the arrester 8, and the electric hydraulic device 6 pushes the insulating fixed top plate 5 to insert the arrester 8 into the outer insulating cone cap 1; Figure 2 An electrode cone head is provided on the top of the arrester 8; after the electric hydraulic device 6 pushes the insulating fixed top plate 5 to insert the arrester 8 into the outer insulating cone cap 1, the top of the electrode cone head is tightly connected with the high-voltage end electrode contact 2; the electrode cone head is a trapezoidal cylindrical structure, and insulating silicone is provided on the side.

[0032] Furthermore, the lightning arrester 8 is a GIS lightning arrester.

[0033] When installing the arrester according to the utility model, it is only necessary to install the arrester to be tested on the insulating fixed top plate 5, turn on the upward control switch of the electric hydraulic device 6, and then push the arrester 8 together with the insulating fixed bottom plate 5 to rise until the electrode cone head of the arrester 8 contacts the high-voltage end electrode contact 2. At this time, the electrode cone head and the high-voltage end electrode contact 2 fit tightly, and the arrester 8 and the outer insulating cone cap 1 are combined with the cone surface. At the same time, the silicone layer on the side of the electrode cone head fits with the insulating outer cone wall of the outer insulating cone cap 1 to ensure insulation; this method has low access loss and avoids safety hazards such as sparking or arc burns due to poor contact. After the test is completed, turn on the downward hydraulic control switch, the arrester 8 and the insulating fixed bottom plate 5 are lowered together, and the electrode cone head of the arrester 8 can easily pull out the outer insulating cone cap, which is flexible and easy to operate, saving labor and time, and has high efficiency.

[0034] The utility model can realize plug-in installation of lightning arrester testing, which is convenient for connection construction. When the electrode cone head of the lightning arrester 8 to be tested is directly inserted into the outer insulating cone cap 1, the spring contact on the top of the electrode cone head is in close contact with the high-voltage end electrode contact 2, and the side of the electrode cone head is pressed against the outer insulating cone cap 1 to ensure sealing insulation and moisture influence; the utility model limit fixing upper flange 3 and the lower fixing flange plate 7 are provided with mounting holes, and it only needs to tighten the bolts during installation for convenient fixing; the utility model has a compact overall structure, and disassembly and installation are simple and quick, and it has a wide range of applications.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lightning arrester plug-in test tool, characterized in that: include: An outer insulating cone cap (1), a limiting fixing upper flange (3) and a lower fixing flange (7); A high-voltage terminal electrode contact (2) is provided at the top end of the outer insulating cone cap (1); the limiting fixing upper flange (3) is tightly connected to the bottom of the outer insulating cone cap (1); An electric hydraulic device (6) is provided on the lower fixed flange (7), and the top of the electric hydraulic device (6) is connected to the insulating fixed top plate (5); two insulating pull rods (4) are connected to the radial edge of the lower fixed flange (7), and the other ends of the two insulating pull rods (4) pass through the insulating fixed top plate (5) and are connected to the limit fixing upper flange (3).

2. The lightning arrester plug-in test fixture according to claim 1 is characterized in that: The insulating fixed top plate (5) is connected to a lightning arrester (8), and the electric hydraulic device (6) pushes the insulating fixed top plate (5) to insert the lightning arrester (8) into the outer insulating cone cap (1).

3. The lightning arrester plug-in test fixture according to claim 2 is characterized in that: The arrester (8) is provided with an electrode cone head at the top; after the electric hydraulic device (6) pushes the insulating fixed top plate (5) to insert the arrester (8) into the outer insulating cone cap (1), the top of the electrode cone head is tightly connected with the high-voltage end electrode contact (2).

4. The lightning arrester plug-in test fixture according to claim 3 is characterized in that: The electrode cone head is a trapezoidal cylindrical structure.

5. The lightning arrester plug-in test fixture according to claim 3 is characterized in that: Insulating silica gel is arranged on the side surface of the electrode cone head.

6. The lightning arrester plug-in test fixture according to claim 1, characterized in that: The outer insulating cone cap (1) is a trapezoidal cylindrical structure.

7. The lightning arrester plug-in test fixture according to claim 1 is characterized in that: The electric hydraulic device (6) comprises a push rod and a hydraulic control module; the push rod is fixedly connected to the insulating fixed top plate (5); and the hydraulic control module controls the push rod to push the insulating fixed top plate (5) to move.

8. The lightning arrester plug-in test fixture according to claim 7, characterized in that: The hydraulic control module is arranged at the lower part of the push rod, and the hydraulic control module is fixedly connected to the lower fixed flange (7).

9. The lightning arrester plug-in test fixture according to claim 1, characterized in that: The insulating pull rod (4) is arranged axially along the lower fixed flange (7).

10. The lightning arrester plug-in test fixture according to claim 1, characterized in that: The insulating pull rods (4) are symmetrically arranged on the lower fixed flange (7).

Images