GIS tank-type lightning arrester core body and GIS tank-type lightning arrester

Abstract

The invention discloses a GIS tank-type lightning arrester core body and a GIS tank-type lightning arrestor, the GIS tank-type lightning arrester core body at least comprises two resistor column groups, each resistor column group at least comprises three resistor columns, each resistor column comprises n resistor layers, n is greater than 1, n is a positive integer, each resistor layer comprises a plurality of resistor discs which are arranged in a laminated manner, and the resistor discs are connected with the resistor columns. The number of the resistor discs on the same resistance layer of different resistance columns is the same; an insulation pad is further arranged between every two adjacent resistance layers, each insulation pad comprises an insulation pad body, an insulation part and a through hole, the resistance layers of the resistance columns arranged on the insulation parts and the resistance layers of the resistance columns penetrating through the through holes are connected through conductive connecting pieces, and the conductive connecting pieces are used for connecting the resistance columns in the direction from the upper ends to the lower ends of the resistance columns. And the resistor discs of the same group of different resistor columns are sequentially connected in series to form a spiral series electrical structure. According to the GIS tank-type lightning arrester core body, the height and the assembly difficulty of the core body are reduced, and the electrical performance of the GIS tank-type lightning arrester can be effectively ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of lightning arresters, and in particular relates to a GIS tank type lightning arrester core and a GIS tank type lightning arrester. Background Art

[0002] During the operation of the power system, the lightning arrester is one of the important protective devices. The main function of the lightning arrester is to limit overvoltage and prevent electrical equipment from being damaged.

[0003] GIS tank arrester is a type of arrester. The core of GIS tank arrester is usually encapsulated in a metal tank and is widely used in GIS combination electrical appliances. The core structure of the current GIS tank arrester usually adopts a single-column resistor structure, which makes the tank height of the GIS tank arrester too high, resulting in increased assembly difficulty. If the core height is reduced, the number of resistors will be reduced, thereby reducing the electrical performance of the entire GIS tank arrester.

[0004] Therefore, how to reduce the tank height of the GIS tank arrester while ensuring the electrical performance of the GIS tank arrester is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a GIS tank type lightning arrester core, which can not only reduce the tank height of the GIS tank type lightning arrester, but also effectively ensure the electrical performance of the GIS tank type lightning arrester.

[0006] Another object of the present invention is to provide a GIS tank type lightning arrester.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A GIS tank type lightning arrester core body comprises at least two groups of resistor column groups, and each group of the resistor column groups comprises at least three resistor columns, each of the resistor columns comprises n resistor layers, n>1, wherein n is a positive integer, each of the resistor layers comprises a plurality of resistor sheets arranged in a stacked manner, and the number of resistor sheets in the same resistor layer of different resistor columns is the same;

[0009] An insulating pad is also arranged between each two adjacent layers of the resistance layers, and the insulating pad comprises an insulating pad body, an insulating portion and a through hole, the insulating portion and the through hole are both arranged on the insulating pad body, the insulating portion enables the resistance layers of two adjacent layers of the resistance column to be electrically insulated, and the through hole is used for the resistance column to pass through, so that the resistance layers of two adjacent layers of the resistance column are electrically connected;

[0010] The resistance layer of the resistance column arranged in the insulating part and the resistance layer of the resistance column passing through the through hole are connected by a conductive connecting member, and the conductive connecting member is used to connect the resistance sheets of the same group of different resistance columns in series in sequence from the upper end to the lower end of the resistance column to form a spiral series electrical structure.

[0011] Optionally, the conductive connector includes an end conductive connecting piece and an intermediate conductive connecting piece, the end conductive connecting piece is arranged on the upper end surface and / or the lower end surface of the insulating pad, and the intermediate conductive connecting piece is connected between the two end conductive connecting pieces.

[0012] Optionally, the insulating portion is a first mounting groove provided on the upper end surface and / or the lower end surface of the insulating pad body for mounting the end conductive connecting piece, and a second mounting groove for mounting the middle conductive connecting piece.

[0013] Optionally, four groups of resistor column groups are included, each group of the resistor column groups includes a first resistor column, a second resistor column and a third resistor column, and the first resistor column, the second resistor column and the third resistor column are arranged in a triangle;

[0014] The insulating pads are arranged between the ath layer and the a+1th layer, between the a+1th layer and the a+2th layer, and between the a+2th layer and the a+3th layer of the first resistor column, the second resistor column and the third resistor column;

[0015] The through holes on the insulating pads at different positions are arranged in a staggered manner, 1<a≤n, and a and n are both positive integers.

[0016] Optionally, it further includes a current balancing plate, which is arranged on the resistor column along the length direction of the resistor column;

[0017] The current balancing plate includes a current balancing plate body and a current balancing portion arranged on the current balancing plate body, the current balancing portion is a current balancing groove capable of achieving electrical conduction, and at least one resistor column in each resistor column group is placed in the current balancing groove.

[0018] Optionally, an insulating rod is further included, wherein the insulating rod passes through the insulating pad and is fixedly connected to the insulating pad.

[0019] A GIS tank type lightning arrester, characterized in that it comprises a GIS tank type lightning arrester core as described in any one of the above items;

[0020] It also includes a shell, an upper cover plate, a pressure plate and a mounting base plate, wherein the GIS tank type lightning arrester core and the pressure plate are both arranged in the shell, the upper cover plate is arranged at the upper part of the shell, and the mounting base plate is arranged at the lower part of the shell;

[0021] The GIS tank type lightning arrester core is arranged between the pressing plate and the mounting base plate;

[0022] A first elastic member is further provided between the pressing plate and the top end surface of the core body of the GIS tank type lightning arrester, and a second elastic member is further provided between the mounting base plate and the bottom end surface of the core body of the GIS tank type lightning arrester.

[0023] Optionally, it also includes a voltage grading cover, a conductive rod, a first contact assembly and a high-voltage insulator, wherein the voltage grading cover is fixed on the pressure plate, the conductive rod is arranged on one side of the voltage grading cover, the high-voltage insulator is fixed on the shell, and one end of the first contact assembly is connected to the conductive rod, and the other end is connected to the high-voltage insulator.

[0024] Optionally, it also includes a first shielding cover, a second shielding cover, an insulating support frame and a conductor, the first shielding cover is fixed on the voltage equalizing cover, the second shielding cover is fixed on the upper cover plate, the conductor is arranged in the first shielding cover, one end of the insulating support frame is connected to the second shielding cover, and the other end passes through the first shielding cover to be connected to the conductor.

[0025] Optionally, also include:

[0026] a second contact assembly, the second contact assembly being arranged in the conductor and being slidably connected to the conductor; and / or

[0027] An explosion-proof component is arranged on one side of the shell.

[0028] It can be seen from the above technical scheme that during the operation of the GIS tank type lightning arrester core, the high voltage is connected from the upper end of each group of resistor columns 1, and then spirally passed through the series structure composed of the conductive connector 5 and the resistor sheet 2, and then reduced to a low voltage for extraction. Compared with the prior art, the GIS tank type lightning arrester core disclosed in the embodiment of the present invention adopts a spiral series electrical structure by connecting multiple resistor column groups in parallel and connecting the three resistor columns 1 of each group in series, which can not only greatly reduce the height of the GIS tank type lightning arrester core, effectively reduce the difficulty of assembly, but also effectively ensure the electrical performance of the GIS tank type lightning arrester. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0030] Figure 1A schematic diagram of the structure of the GIS tank type lightning arrester core provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the structure of a conductive connecting member provided by an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the structure of an insulating pad provided by an embodiment of the present invention;

[0033] Figure 4 for Figure 3 Cross-sectional view along AA direction;

[0034] Figure 5 for Figure 3 Cross-sectional view along direction BB;

[0035] Figure 6 A partial structural schematic diagram of the current flow direction of the core of the GIS tank type lightning arrester provided in an embodiment of the present invention;

[0036] Figure 7 A front view of a current equalizing plate provided in an embodiment of the present invention;

[0037] Figure 8 This is a front view of the GIS tank type lightning arrester provided in an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1. resistor column; 101. first resistor column; 102. second resistor column; 103. third resistor column; 2. resistor sheet; 3. insulating pad; 301. insulating pad body; 302-insulating part; 3021, first mounting slot; 3022, second mounting slot; 303, through hole; 4, current equalizing plate; 401, current equalizing plate body; 402, current equalizing slot; 403, conductive connecting plate slot; 5, conductive connecting piece; 501, end conductive connecting piece; 502, middle conductive connecting piece; 6, mounting hole; 7, shell; 8, pressure plate; 9, mounting base; 10, voltage equalizing cover; 11, conductive rod; 12, first contact assembly; 13, second contact assembly; 14, high-voltage insulator; 15, first shielding cover; 16, second shielding cover; 17, insulating support frame; 18, conductor; 19, upper cover; 20, first elastic member; 21-second elastic member; 22-explosion-proof component. DETAILED DESCRIPTION

[0040] In view of this, the core of the present invention is to provide a GIS tank type lightning arrester core, which can not only reduce the tank height of the GIS tank type lightning arrester, but also effectively ensure the electrical performance of the GIS tank type lightning arrester.

[0041] Another core of the present invention is to provide a GIS tank type lightning arrester.

[0042] 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. Please refer to Figures 1 to 8 .

[0043] Please refer to Figure 1 The GIS tank-type lightning arrester core disclosed in the embodiment of the present invention includes at least two groups of resistance column groups, and each group of resistance column groups includes at least three resistance columns 1, each resistance column 1 includes multiple resistance layers, each resistance layer includes multiple resistance sheets 2 arranged in a stacked manner, and the number of resistance sheets 2 in the same resistance layer of different resistance columns 1 is the same.

[0044] An insulating pad 3 is also arranged between each two adjacent resistance layers, and the insulating pad 3 includes an insulating pad body 301, an insulating portion 302 and a through hole 303. The insulating portion 302 and the through hole 303 are both arranged on the insulating pad body 301. The insulating portion 302 makes the resistance layers of the two adjacent layers of the resistance column 1 electrically insulated, and the through hole 302 is used for the resistance column 1 to pass through, so that the resistance layers of the two adjacent layers of the resistance column 1 are electrically connected.

[0045] The resistance layer of the resistance column 1 arranged in the insulating part 301 and the resistance layer of the resistance column 1 passing through the through hole 3032 are connected by a conductive connecting member 5. The conductive connecting member 5 is used to connect the resistance sheets 2 of the same group of different resistance columns 1 in series in sequence from the upper end to the lower end of the resistance column 1 to form a spiral series electrical structure.

[0046] During the operation of the GIS tank arrester core, high voltage is connected from the upper end of each group of resistor columns 1, and then spirally passed through the series structure composed of the conductive connector 5 and the resistor sheet 2, and then reduced to low voltage for extraction. Compared with the prior art, the GIS tank arrester core disclosed in the embodiment of the present invention adopts a spiral series electrical structure by connecting multiple resistor column groups in parallel and connecting three resistor columns 1 in each group in series, which can not only greatly reduce the height of the GIS tank arrester core, effectively reduce the difficulty of assembly, but also effectively ensure the electrical performance of the GIS tank arrester.

[0047] In addition, the structure of the GIS tank arrester core is simple, which is conducive to large-scale production and application. At the same time, this structural design is also conducive to improving the overvoltage limiting ability of the GIS tank arrester core, protecting the connected electrical equipment from damage and improving the safety of the power system.

[0048] Tests have shown that the repeated charge transfer using D105 resistors can reach 6C and the rated thermal energy can reach 60kJ / kV.

[0049] It should be noted that insulating gas is used to insulate the resistor columns 1 , and the insulating pads 3 are preferably made of polytetrafluoroethylene.

[0050] The embodiment of the present invention does not limit the specific structure of the conductive connector 5. As long as the structure meets the use requirements of the present invention, it is within the protection scope of the present invention.

[0051] As one example, please refer to Figure 2 The conductive connector 5 disclosed in the embodiment of the present invention includes an end conductive connecting piece 501 and an intermediate conductive connecting piece 502. The end conductive connecting piece 501 is arranged on the upper end surface and / or the lower end surface of the insulating pad 3, and the intermediate conductive connecting piece 502 is connected between the two end conductive connecting pieces 301.

[0052] It should be noted that in the GIS tank type lightning arrester core disclosed in the embodiment of the present invention, the insulating portion 302 is a first mounting groove 3021 for mounting the end conductive connecting piece 501, and a second mounting groove 3022 for mounting the middle conductive connecting piece 502, which is arranged on the upper end surface and / or the lower end surface of the insulating pad body 301. With such arrangement, when the GIS tank type lightning arrester core is installed, the end conductive connecting piece 501 and the middle conductive connecting piece 502 can be installed in the first mounting groove 3021 and the second mounting groove 3022 respectively, so as to realize the current conduction between different resistance columns 1.

[0053] As an example of this application, please refer to Figure 2-Figure 5 The end conductive connecting piece 501 is a circle that imitates the shape of the resistor 2, and accordingly, the first mounting groove 301 can be set to be a circle that imitates the shape of the end conductive connecting piece 501; the middle conductive connecting piece 502 is a strip, and accordingly, the second mounting groove 302 can be set to be a strip that imitates the shape of the middle conductive connecting piece 50. In this way, the resistor 2, the end conductive connecting piece 501 and the first mounting groove 301 and the second mounting groove 302 can be effectively matched, which is more convenient for current conduction.

[0054] The embodiment of the present invention does not limit the number and arrangement of specific resistor columns 1 in each resistor column group. As long as the structure meets the use requirements of the present invention, it is within the protection scope of the present invention.

[0055] The GIS tank type lightning arrester core disclosed in the embodiment of the present invention may include two groups of resistor column groups, three groups of resistor column groups, four groups of resistor column groups or more groups of resistor column groups, and each group of resistor column groups may include three resistor columns, four resistor columns, five resistor columns or more resistor columns. The technical personnel in this field do not limit this. As long as the arrangement quantity and structure of the GIS tank type lightning arrester core meet the use requirements of the present invention, they are within the protection scope of the present invention.

[0056] As a specific embodiment of the present invention, please refer to Figure 6 , Figure 6 The arrows in the figure indicate the direction of current flow.

[0057] The GIS tank arrester core disclosed in the embodiment of the present invention includes four groups of resistor columns, wherein each group of resistor columns includes a first resistor column 101, a first resistor column 102 and a third resistor column 103, wherein the first resistor column 101, the first resistor column 102 and the third resistor column 103 are arranged in a triangle.

[0058] Insulating pads 3 are arranged between the a-th layer and the a+1-th layer, between the a+1-th layer and the a+2-th layer, and between the a+2-th layer and the a+3-th layer of the first resistor column 101, the second resistor column 102 and the third resistor column 103, wherein the through holes on the insulating pads 3 arranged at different positions are arranged alternately, 1<a≤n, and a and n are both positive integers.

[0059] In the embodiment of the present invention, Figure 6 Take this as an example to explain it in detail. Figure 6 In the figure, the first resistor column 101, the second resistor column 102 and the third resistor column 103 are all in the ath layer, wherein the position of the insulating pad 3 where the first resistor column 101 is located is the through hole 303, and the ath layer and the a+1th layer of the third resistor column 103 both pass through the through hole 303. At this time, the current of the ath layer and the a+1th layer of the third resistor column 103 is conducted, the first resistor column 101 and the second resistor column 102 are both arranged on the insulating part 302, the lower end face of the ath layer of the first resistor column 101 and the lower end face of the ath layer of the second resistor column 102 are electrically connected through the conductive connector 500, and the upper end face of the second resistor column 102 is electrically connected to the upper end face of the third resistor column 103 through the conductive connector 500.

[0060] The current enters the lower end surface of the first resistor column 101 from the upper end surface of the a-th layer of the first resistor column 101, is conducted from the lower end surface of the first resistor column 101 to the lower end surface of the second resistor column 102 through the conductive connector 500 arranged between the first resistor column 101 and the second resistor column 102, is conducted from the lower end surface of the second resistor column 102 to the upper end surface of the second resistor column 102, is conducted from the upper end surface of the second resistor column 102 to the upper end surface of the third resistor column 103 through the conductive connector 500 between the second resistor column 102 and the third resistor column 103, and is then conducted to the lower end surface of the third resistor column 103 through the upper end surface of the third resistor column 103. Since the third resistor column 103 passes through the through hole 303 of the insulating plate 3 arranged between the a-th layer and the a+1-th layer, the a-th layer and the a+1-th layer of the third resistor column 103 are conductive, and thus the current is conducted from the a-th layer of the third resistor column 103 to the a+1-th layer.

[0061] In the a+1th layer, the current is conducted from the upper end surface of the a+1th layer of the third resistor column 103 to the lower end surface, and then conducted to the a+1 lower end surface of the first resistor column 101 through the a+1th lower end surface of the third resistor column 103, and then conducted from the a+1 lower end surface of the first resistor column 101 to the upper end surface of the a+1th layer of the first resistor column 101, and then conducted from the upper end surface of the a+1th layer of the first resistor column 101 to the upper end surface of the a+1th layer of the second resistor column 102, and finally conducted from the upper end surface of the a+1th layer of the second resistor column 102 to the upper end surface of the a+1th layer of the second resistor column 102. The end face is conducted to the lower end face of the a+1th layer of the second resistor column 102. At this time, the second resistor column 102 passes through the through hole 303 of the insulating plate 3 arranged between the a+1th layer and the a+2th layer, and the current of the a+1th layer and the a+2th layer of the second resistor column 102 is conducted, that is, the current is conducted to the a+2th layer, and so on. In the a+2th layer, the first resistor column 101 passes through the through hole 303 of the insulating plate 3 arranged between the a+2th layer and the a+3th layer, and the first resistor column 101 conducts the current to the a+3th layer.

[0062] In the a+3th layer, the third resistor column 103 passes through the through hole 303 of the insulating plate 3 arranged between the ath layer and the a+1th layer, and the circular arrangement is carried out to realize the spiral series connection of the current.

[0063] As a further example, please refer to Figure 7 The GIS tank type lightning arrester core disclosed in the embodiment of the present invention further includes a current equalizing plate 4, wherein the current equalizing plate 4 is arranged on the resistor column 1 along the length direction of the resistor column 1.

[0064] The current balancing plate 4 includes a current balancing plate body 401 and a current balancing part arranged on the current balancing plate body 401. Specifically, the current balancing part is a current balancing groove 402 capable of achieving electrical conduction, and at least one resistor column 1 of each resistor column group is placed in the current balancing groove 402. Through the arrangement of the current balancing plate 4, the current of each group of resistor columns can be evenly distributed.

[0065] When the number of resistor column groups is different, the shape of the current balancing groove 402 is also different. Those skilled in the art can adaptively set the shape of the current balancing groove 402 according to the number of resistor column groups.

[0066] As a specific embodiment of the present invention, the resistor column groups disclosed in the embodiment of the present invention are 4 groups, each group has 3 resistor columns 1.

[0067] Please continue to refer to Figure 7 The current balancing plate 4 is circular in shape, and the current balancing groove 402 is arranged at the center of the current balancing plate 4, wherein the current balancing groove 402 specifically includes four circular grooves that are shaped like the resistor sheet 2, and the four circular grooves are arranged opposite to each other in pairs, and each two oppositely arranged circular grooves are connected by a strip groove, and the two strip grooves intersect to form a cross structure.

[0068] Furthermore, conductive connecting plate grooves 403 are provided along the circumference of the current equalizing plate 4, wherein four groups of conductive connecting plate grooves 403 are made of insulating material, each group of conductive connecting plate grooves 403 has two, and conductive connecting plates are provided on the conductive connecting plate grooves 403, which can enable the two resistor columns in each group to achieve electrical conduction.

[0069] The embodiment of the present invention does not limit the number and location of the current equalizing plates 4. As long as the number and location meet the use requirements of the present invention, they are within the protection scope of the present invention.

[0070] As a specific embodiment of the present invention, the GIS tank type lightning arrester core disclosed in the embodiment of the present invention is provided with two current equalizing plates 4, one of which is provided at the 1 / 3 position of the resistor column 1, and the other is provided at the 2 / 3 position of the resistor column 1. In this way, after the current is equalized through the upper part of the resistor column 1, it is equalized again at the middle position of the resistor column 1, which can further improve the current equalization effect, thereby improving the electrical performance of the entire GIS tank type lightning arrester core.

[0071] In order to improve the entire mechanical support structure of the GIS tank arrester core, the GIS tank arrester core disclosed in the embodiment of the present invention further includes an insulating rod, wherein the insulating rod 6 passes through the mounting hole 6 of the insulating pad 3 and is fixedly connected to the insulating pad 3. Such an arrangement enhances the electrical contact and mechanical stability between different resistance columns 1, improves the mechanical strength of the GIS tank arrester core, prevents shaking during transportation and operation, and prolongs the stability and service life of the GIS tank arrester core.

[0072] An embodiment of the present invention further discloses a GIS tank-type lightning arrester, comprising a GIS tank-type lightning arrester core as disclosed in any one of the above embodiments.

[0073] Since the GIS tank type lightning arrester adopts the GIS tank type lightning arrester core disclosed in the embodiment of the present invention, the GIS tank type lightning arrester also has the technical advantages of the GIS tank type lightning arrester core disclosed in the embodiment of the present invention, and the embodiment of the present invention will not elaborate on this one by one.

[0074] Please refer to Figure 8 The GIS tank type lightning arrester disclosed in the embodiment of the present invention also includes a shell 7, an upper cover plate 19, a pressure plate 8 and an installation base plate 9, wherein the GIS tank type lightning arrester core and the pressure plate 8 are both arranged in the shell 7, the upper cover plate 19 is arranged at the upper part of the shell 7, and the installation base plate 9 is arranged at the lower part of the shell 7.

[0075] Specifically, the GIS tank type lightning arrester core is arranged between the pressure plate 8 and the installation base plate 9, a first elastic member 20 is also arranged between the pressure plate 8 and the top surface of the GIS tank type lightning arrester core, and a second elastic member 21 is also arranged between the installation base plate 9 and the bottom end surface of the GIS tank type lightning arrester core.

[0076] The embodiment of the present invention does not limit the specific structure of the first elastic member 20 and the second elastic member 21. As long as the structure meets the use requirements of the present invention, it is within the protection scope of the present invention.

[0077] As one embodiment, the first elastic member 20 and the second elastic member disclosed in the embodiment of the present invention are preferably disc springs.

[0078] It should be noted that the housing 7 is made of high-strength aluminum alloy plate. This configuration can enhance the mechanical strength of the GIS tank-type lightning arrester and increase the stability and safety of the product.

[0079] As a further embodiment, the GIS tank type lightning arrester disclosed in the embodiment of the present invention also includes a voltage grading cover 10, a conductive rod 11, a first contact assembly 12 and a high-voltage insulator 14. The voltage grading cover 10 is fixed on the pressure plate 8, the conductive rod 11 is arranged on one side of the voltage grading cover 10, the high-voltage insulator 14 is fixed on the shell 7, and one end of the first contact assembly 12 is connected to the conductive rod 11, and the other end is connected to the high-voltage insulator 14. It is easy to install and the connection is reliable. Such a setting can not only effectively control the voltage release and internal electric field distribution of the GIS tank type lightning arrester core, but also the side outlet structure can further reduce the height of the GIS tank type lightning arrester core, which is convenient for connection with the GIS combination electrical appliance.

[0080] As a further embodiment, the GIS tank-type lightning arrester disclosed in the embodiment of the present invention also includes a first shielding cover 15, a second shielding cover 16, an insulating support frame 17 and a conductor 18. The first shielding cover 15 is fixed on the voltage equalizing cover 10, the second shielding cover 16 is fixed on the upper cover plate 19, the conductor 18 is arranged in the first shielding cover 16, one end of the insulating support frame 17 is connected to the second shielding cover 16, and the other end passes through the first shielding cover 16 to be connected to the conductor 18.

[0081] As a further embodiment, the GIS tank-type lightning arrester disclosed in the embodiment of the present invention further includes a second contact assembly 13 , which is sleeved in the conductor 18 and slidably connected to the conductor 18 .

[0082] In addition, the GIS tank-type lightning arrester disclosed in the embodiment of the present invention further includes an explosion-proof component, wherein the explosion-proof component 22 is arranged on one side of the shell 7 .

[0083] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0084] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0085] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A GIS tank type lightning arrester core, characterized in that: At least two groups of resistor column groups are included, and each group of the resistor column groups includes at least three resistor columns, each of the resistor columns includes n resistor layers, n>1, where n is a positive integer, each of the resistor layers includes a plurality of resistor sheets arranged in a stacked manner, and the number of resistor sheets in the same resistor layer of different resistor columns is the same; An insulating pad is also arranged between each two adjacent layers of the resistance layers, and the insulating pad comprises an insulating pad body, an insulating portion and a through hole, the insulating portion and the through hole are both arranged on the insulating pad body, the insulating portion enables the resistance layers of two adjacent layers of the resistance column to be electrically insulated, and the through hole is used for the resistance column to pass through, so that the resistance layers of two adjacent layers of the resistance column are electrically connected; The resistance layer of the resistance column arranged in the insulating part and the resistance layer of the resistance column passing through the through hole are connected by a conductive connecting member, and the conductive connecting member is used to connect the resistance sheets of the same group of different resistance columns in series in sequence from the upper end to the lower end of the resistance column to form a spiral series electrical structure.

2. The GIS tank type lightning arrester core according to claim 1 is characterized in that: The conductive connector includes an end conductive connecting piece and an intermediate conductive connecting piece. The end conductive connecting piece is arranged on the upper end surface and / or the lower end surface of the insulating pad, and the intermediate conductive connecting piece is connected between the two end conductive connecting pieces.

3. The GIS tank type arrester core according to claim 2 is characterized in that: The insulating portion is a first mounting groove arranged on the upper end surface and / or the lower end surface of the insulating pad body for mounting the end conductive connecting piece, and a second mounting groove for mounting the middle conductive connecting piece.

4. The GIS tank type lightning arrester core according to claim 1 is characterized in that: It comprises four groups of resistor column groups, each group of the resistor column groups comprises a first resistor column, a second resistor column and a third resistor column, and the first resistor column, the second resistor column and the third resistor column are arranged in a triangle; The insulating pads are arranged between the ath layer and the a+1th layer, between the a+1th layer and the a+2th layer, and between the a+2th layer and the a+3th layer of the first resistor column, the second resistor column and the third resistor column; The through holes on the insulating pads at different positions are arranged in a staggered manner, 1<a≤n, and a and n are both positive integers.

5. The GIS tank type arrester core according to claim 1 is characterized in that: It also includes a current balancing plate, which is arranged on the resistor column along the length direction of the resistor column; The current balancing plate includes a current balancing plate body and a current balancing portion arranged on the current balancing plate body, the current balancing portion is a current balancing groove capable of achieving electrical conduction, and at least one resistor column in each resistor column group is placed in the current balancing groove.

6. The GIS tank type arrester according to claim 1, characterized in that: It also includes an insulating rod, which passes through the insulating pad and is fixedly connected to the insulating pad.

7. A GIS tank type arrester, characterized in that: Comprising a GIS tank type lightning arrester core as described in any one of claims 1 to 6; It also includes a shell, an upper cover plate, a pressure plate and a mounting base plate, wherein the GIS tank type lightning arrester core and the pressure plate are both arranged in the shell, the upper cover plate is arranged at the upper part of the shell, and the mounting base plate is arranged at the lower part of the shell; The GIS tank type lightning arrester core is arranged between the pressing plate and the mounting base plate; A first elastic member is further provided between the pressing plate and the top end surface of the core body of the GIS tank type lightning arrester, and a second elastic member is further provided between the mounting base plate and the bottom end surface of the core body of the GIS tank type lightning arrester.

8. The GIS tank type arrester according to claim 7, characterized in that: It also includes a voltage grading cover, a conductive rod, a first contact assembly and a high-voltage insulator, wherein the voltage grading cover is fixed on the pressure plate, the conductive rod is arranged on one side of the voltage grading cover, the high-voltage insulator is fixed on the shell, and one end of the first contact assembly is connected to the conductive rod, and the other end is connected to the high-voltage insulator.

9. The GIS tank type arrester according to claim 7, characterized in that: It also includes a first shielding cover, a second shielding cover, an insulating support frame and a conductor. The first shielding cover is fixed on the voltage-equalizing cover, the second shielding cover is fixed on the upper cover plate, the conductor is arranged in the first shielding cover, one end of the insulating support frame is connected to the second shielding cover, and the other end passes through the first shielding cover to be connected to the conductor.

10. The GIS tank type arrester according to claim 9, characterized in that: Also includes: a second contact assembly, the second contact assembly being arranged in the conductor and being slidably connected to the conductor; and / or An explosion-proof component is arranged on one side of the shell.

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