Test device for the insulation performance of a lightning rod resistance disc

Abstract

A testing device for the insulation performance of a lightning arrester resistance disk, comprising a housing (1), a module placement cover (2), and an insulation testing device, characterized in that the insulation testing device comprises a high-voltage electrode common end tool plate (4), a channel signal switching plate (5), and a low-voltage electrode end tool plate (6), the high-voltage electrode common end tool plate (4), the channel signal switching plate (5), and the low-voltage electrode end tool plate (6) being sequentially distributed from top to bottom inside the housing (1);and wherein the front of the housing (1) is provided with an insertion slot (8), and wherein a resistor disk mounting bracket (9) comprising a pull-out frame (12) is movably inserted into the inner wall of the insertion slot (8), and wherein a resistor disk receiving plate (11) is movably inserted into the inner wall of the pull-out frame (12), and wherein a resistor disk placing groove (17) is provided on the upper surface of the resistor disk receiving plate (11), and wherein the resistor disk mounting bracket (9) is located between the tool plate of the common end of the high-voltage electrode (4) and the channel signal circuit board (5);

Description

TECHNICAL FIELDThe present invention relates to the technical field of monitoring the insulation performance of a lightning arrester, and more particularly to a monitoring device for the insulation performance of a lightning arrester resistance disk.PRIOR ARTIn the high voltage line equipment, a lightning arrester is often arranged. In order to check whether the lightning arrester can normally function in practical application, its insulation performance must be taken off by a previous simulation check. In the lightning arrester, a plurality of resistance disks are connected in series, and the insulation performance of the entire lightning arrester can be determined by checking the insulation performance of each individual resistance disk. In recent years, failures have increasingly occurred in 10 kV metal oxide lightning arresters, so that it is necessary to test and test the lightning arrester before it is used in high voltage line equipment. At present, the method of testing the insulating performance of lightning arrester resistor disks is cumbersome, requires more labour and material resources, and is inefficient.The related art develops a Chinese patent application number CN211577320U to solve the above-mentioned technical problems, and the technical solution disclosed in the patent document is as follows: a lightning arrester resistance disk insulation performance testing apparatus including a housing and an insulation testing device disposed in the housing, a control module, a display module, and an output module, wherein the insulation testing device, the display module, and the output module are electrically connected to the control module, respectively. The present invention can improve the inspection efficiency of the insulation performance of the lightning arrester resistance disk and prevent the resistance disk from deteriorating and the leakage current from increasing, and prevent the internal discharge of the device, which leads to safety risks of the high voltage line equipment.However, in the test process in the related art, the resistance disks 5 must be arranged one-to-one, respectively, and taken out one after another after the test, which is too complex and deteriorates the efficiency of the test.CONTENT OF THE PRESENT INVENTIONIt is a purpose of the present invention to provide a lightning arrester resistance disc insulation performance testing apparatus to solve the problems of the prior art.In order to solve the above technical problems, the present invention uses the following technical solution:a lightning arrester resistance disc insulation performance testing apparatus comprising a housing, a module placement cover, and an insulation testing apparatus, wherein the insulation testing apparatus comprises a high voltage electrode common end die plate, a channel signal circuit plate, and a low voltage electrode end die plate, and wherein the high voltage electrode common end die plate, the channel signal circuit plate, and the low voltage electrode end die plate are sequentially distributed inside the housing from top to bottom;and wherein the front side of the housing is provided with an insertion slot, and wherein a resistance plate mounting bracket comprising a pull-out frame is movably inserted into the inner wall of the insertion slot, and wherein a resistance plate receiving plate is movably inserted into the inner wall of the pull-out frame, and wherein a resistance plate placement groove is provided on the upper surface of the resistance plate receiving plate, and wherein the resistance plate mounting bracket is located between the tool plate of the common end of the high voltage electrode and the channel signal circuit plate.A further improvement of the technical solution of the present invention consists in that a handle is fixedly connected to the front side of the pull-out frame, wherein a cross bar is fixedly connected to the inner wall of the pull-out frame, and wherein a receiving slot adapted to the cross bar is provided on the underside of the resistance plate receiving plate.A further improvement of the technical solution of the present invention consists in the inner wall of the receiving slot being latched to the outer wall of the cross bar.Another improvement of the technical solution of the present invention is that a needle assembly corresponding to the resistance plate placement groove is disposed on the lower surface of the hot electrode common end die plate, a spring contact fixedly connected to the upper surface of the channel signal die plate is disposed below the resistance plate placement groove, and the lower surface of the channel signal die plate is fixedly connected to the upper surface of the low voltage electrode end die plate through a support frame.A further improvement of the technical solution of the present invention consists in that a side slider is fixedly connected to the outer wall of the pull-out frame, wherein a spring-loaded resistance plate is fixedly connected to the upper surface of the side slider.A further improvement of the technical solution of the present invention consists in that a transparent, closed cover is movably mounted on the upper part of the housing.Using the above technical solution, the present utility model has achieved the following technical advancements as compared with existing technologies: 1. the present utility model provides a test apparatus for the insulation performance of a lightning arrester resistance disk, by the design of the unique resistance disk mounting bracket, the operator can place the resistance disk in advance in the resistance disk placement groove of the resistance disk receiving plate, then dock the pull-out frame with the insertion slot of the housing, and push it to the end to quickly complete a circuit connection between the resistance disk and the test apparatus without having to install the resistance disks one by one in the housing, thereby greatly improving the efficiency of test preparation; Moreover, the resistance plate receiving plate can be taken out of the pull-out frame to be easily replaced with various specifications, which is conformable to various sizes of the resistance plate and meets diversified test needs to improve the convenience and efficiency of the entire test work; 2. the present invention provides a lightning arrester resistance plate insulation performance testing apparatus, the side slider installed on a side edge of the pull-out frame plays an accurate guide roller for its movement, and in combination with the spring-loaded resistance plate, the pull-out frame can be stably clamped in the inner wall of the insertion slot to ensure that the resistance plate mounting bracket does not shake in the test operation, thereby ensuring the stability of the test environment; At the same time, the spring contact is composed of a blade body and a spring on the lower part, and it can always abut on the lower part of the resistance disk under the action of the elastic force of the spring to ensure good electrical contact and avoid the imprecision of the test data due to the poor contact, to provide reliable hardware support for the test of the insulation performance and to ensure the accuracy and reliability of the test results.BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a schematic diagram showing the structure of the present invention; FIG. 2 is a schematic diagram showing the structural details of a housing of the present invention; FIG. 3 is a schematic diagram showing the structure of a resistance plate mounting bracket of the present invention; FIG. 4 is a schematic diagram showing the structure of a resistance disk receiving plate of the present invention as viewed from below.List of reference characters1 Housing 2 Module placement cover 3 Transparent closed cover 4 Common-end die plate of high voltage electrode 5 Channel signal circuit board 6 Low voltage electrode end die plate 7 Support frame 8 Insertion slot 9 Resistance plate mounting bracket 10 Needle assembly 11 Resistance plate receiving plate 12 Pull-out frame 13 Handle 14 Cross bar 15 Side slider 16 Spring-loaded resistance plate 17 Resistance plate placement groove 18 Receiving slot 19 Spring contactDETAILED DESCRIPTIONIt should be noted that the terms "arranged", "installed", "coupled", and "connected" should be understood broadly in the explanation of the present utility model unless there are any unique rules and regulations. For example, it may be both a fixed connection and a removable connection, or an integrated connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection via a medium; it may also be a connection between the insides of two elements. Those skilled in the art can understand the concrete meanings of the above terms in the present utility model from the concrete situations.In connection with exemplary embodiments, the present utility model is explained in more detail below.Embodiment 1As shown in FIGS. 1 to 4, the present invention provides a lightning arrester resistance disk insulation performance inspection apparatus comprising a housing 1, a module placement cover 2, and an insulation inspection apparatus, wherein the insulation inspection apparatus comprises a high voltage electrode common end jig plate 4, a channel signal circuit plate 5, and a low voltage electrode end jig plate 6, and wherein the high voltage electrode common end jig plate 4, the channel signal circuit plate 5, and the low voltage electrode end jig plate 6 are sequentially distributed from top to bottom inside the housing 1; and wherein the front side of the housing 1 is provided with an insertion slot 8, and wherein a resistance plate mounting bracket 9 comprising a pull-out frame 12 is movably inserted into the inner wall of the insertion slot 8, and wherein a resistance plate receiving plate 11 is movably inserted into the inner wall of the pull-out frame 12, and wherein a resistance plate placement groove 17 is provided on the upper surface of the resistance plate receiving plate 11, and wherein the resistance plate mounting bracket 9 is located between the die plate of the common end of the high voltage electrode 4 and the channel signal circuit plate 5.Embodiment 2As shown in Figs. 1 to 4, the present invention provides a technical solution based on Embodiment 1: preferably, a handle 13 is fixedly connected to the front side of the pull-out frame 12, a cross bar 14 is fixedly connected to the inner wall of the pull-out frame 12, and a receiving slot 18 fitted to the cross bar 14 is provided on the lower side of the resistance plate receiving plate 11.The inner wall of the receiving slot 18 is latched to the outer wall of the cross bar 14.On the lower surface of the die plate of the common end of the high voltage electrode 4, a needle assembly 10 corresponding to the resistance disk placement groove 17 is disposed, the needle assembly 10 assumes a spring-piston structure, and a single needle is composed of a tungsten carbide alloy needle (diameter 1.5 mm), a compression spring (elasticity coefficient 20 N / m), and an insulating sleeve. The needles are arranged in a matrix on the die plate 4, the distance of the resistance disk placement groove 17 corresponding one-to-one.Below the resistance disk placement groove 17 is disposed a spring contact 19 fixedly connected to the upper surface of the channel signal circuit board 5, and the lower surface of the channel signal circuit board 5 is fixedly connected to the upper surface of the die plate of the low voltage electrode end 6 through a support frame 7.A side slide 15 is fixedly connected to the outer wall of the pull-out frame 12, and a spring-loaded resistance plate 16 is fixedly connected to the upper surface of the side slide 15.On the top of the housing 1 a transparent, closed cover 3 is movably placed.The functional principle of the test device for the insulating performance of a lightning arrester resistance disk is explained in more detail below.In use, as shown in Figs. 1 to 4, the resistance disk is placed in the resistance disk placement groove 17, now the top of the resistance disk terminates flush with the top surface of the resistance disk receiving plate 11. After several groups of resistance disks have been placed one-to-one, respectively, the pull-out frame 12 is docked with the insertion slot 8 and then slid inside the housing 1 to the end, now the top surface of the resistance disk comes into contact with the bottom end of the needle of the needle assembly 10, while the bottom surface of the resistance disk comes into contact with the top of the spring contact 19 to form a circuit connection.When the power supply is activated at this time, it is possible to test the insulation performance of the resistance disk and obtain the resistance value and the current value of the resistance disk.The resistance plate receiving plate 11 can be taken out of the pull-out frame 12 and replaced with another specification, which can facilitate the inspection of the resistance plates of various specifications.A side slider 15 is installed on one side edge of the pull-out frame 12 to guide its movement, and at the same time, the spring-loaded resistance plate 16 is used so that it can be clamped in the inner wall of the insertion slot 8 to ensure the stability of the subsequent checking operation.The spring contact 19 is composed of a blade body and a spring on the bottom part so as to closely abut on the bottom part of the resistance disk under the action of the elastic force of the spring.When the resistance plate mounting bracket 9 is docked with the housing 1, the operator can hold the handle 13 to slide the pull-out frame 2 to slide on the inner wall of the insertion slot 8. When the side edge of the pull-out frame 12 comes into contact with the needle assembly 10, it will squeeze its needle so that the needle compresses the spring with which its outer wall is wrapped to move upwards and the needle comes into contact with the top surface of the resistance disk when the resistance disk receiving plate 11 is mounted in place.To avoid excessive friction, first, the top of the needle assembly 10 may be connected to a lift plate, and when the resistance plate mounting bracket 9 is placed and installed, the needle is pulled up by the lift plate.The module placement cover 2 is provided with a display module and an output module.The above general description of the present invention is exhaustive, but on the basis of the present invention, some changes or improvements may be made thereto, as will be apparent to those skilled in the art. Therefore, any change or improvement that does not depart from the spirit of the concept of the present invention falls within the scope of the present invention.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedCN 211573320U

[0003]

Claims

An insulation performance test apparatus of a lightning arrester resistance disc comprising a casing (1), a module placement cover (2) and an insulation test device, characterized in that the insulation test device comprises a common end die plate of the high voltage electrode (4), a channel signal circuit plate (5) and a low voltage electrode end die plate (6), wherein the common end die plate of the high voltage electrode (4), the channel signal circuit plate (5) and the low voltage electrode end die plate (6) are sequentially distributed from top to bottom inside the casing (1); and wherein the front side of the housing (1) is provided with an insertion slot (8), and wherein a resistance plate mounting bracket (9) comprising a pull-out frame (12) is movably inserted into the inner wall of the insertion slot (8), and wherein a resistance plate receiving plate (11) is movably inserted into the inner wall of the pull-out frame (12), and wherein a resistance plate placement groove (17) is provided on the upper surface of the resistance plate receiving plate (11), and wherein the resistance plate mounting bracket (9) is located between the die plate of the common end of the high voltage electrode (4) and the channel signal circuit plate (5).Test device for the insulating performance of a lightning arrester resistance panel according to Claim 1, characterized in that a handle (13) is fixedly connected to the front side of the pull-out frame (12), wherein a cross rod (14) is fixedly connected to the inner wall of the pull-out frame (12), and wherein a receiving slot (18) matched to the cross rod (14) is provided on the underside of the resistance panel receiving plate (11).Test device for the insulating performance of a lightning arrester resistance disc according to Claim 2, characterized in that the inner wall of the receiving slot (18) is latched to the outer wall of the transverse rod (14).The lightning conductor resistance plate insulation performance inspection device according to claim 1, characterized in that a needle assembly (10) corresponding to the resistance plate placement groove (17) is disposed on the lower surface of the common end die plate of the high voltage electrode (4), wherein a spring contact (19) fixedly connected to the upper surface of the channel signal circuit plate (5) is disposed below the resistance plate placement groove (17), and wherein the lower surface of the channel signal circuit plate (5) is fixedly connected to the upper surface of the low voltage electrode end die plate (6) through a support frame (7).Test device for the insulating performance of a lightning arrester resistance pane according to Claim 1, characterized in that a side slide (15) is fixedly connected to the outer wall of the pull-out frame (12), wherein a spring-loaded resistance plate (16) is fixedly connected to the upper surface of the side slide (15).Test device for the insulating performance of a lightning arrester resistance pane according to Claim 1, characterized in that a transparent, closed cover (3) is movably mounted on the upper part of the housing (1).

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