CN116008754A - A zinc oxide arrester multiple lightning strike simulation test device and test method - Google Patents

Abstract

The invention relates to the technical field of lightning arrester tests, in particular to a multiple lightning stroke simulation test device and a test method for a zinc oxide lightning arrester.

Description

A zinc oxide arrester multiple lightning strike simulation test device and test method

technical field

The invention relates to the technical field of lightning arrester testing, in particular to a zinc oxide lightning arrester multiple lightning strike simulation test device and a test method.

Background technique

In real life, when lightning strikes the overhead power line or the ground near the line, overvoltage will be generated on the transmission line, and they will be transmitted along the line to the substation at the end of the line in the form of electromagnetic waves, endangering the equipment with weak insulation in the substation , In order to protect electrical equipment, an overvoltage protection device must also be installed. As an important lightning protection device, the arrester is responsible for absorbing and releasing the impact energy of lightning. At present, high-voltage electrical equipment in substations uses metal oxide arresters as the key equipment for lightning overvoltage protection and operating overvoltage protection equipment. This metal oxide arrester is generally a zinc oxide arrester, and the zinc oxide arrester uses zinc oxide resistors. The linear volt-ampere characteristic achieves the function of safe lightning protection, and is widely used in the overvoltage protection of high-voltage electrical equipment in substations. The zinc oxide arrester is connected in parallel between the high-voltage end of the high-voltage electrical equipment in the substation and the ground. When the high-voltage equipment in the substation operates under normal operating voltage, the arrester will not work. It can be regarded as an open circuit for the ground, and once it exceeds the normal operating voltage When the high voltage and the insulation of the protected equipment are endangered, the zinc oxide arrester will immediately act to guide the high-voltage surge current to the ground to limit the voltage amplitude, thereby protecting the high-voltage equipment in the substation. normal work.

Before the arrester leaves the factory or is put into operation on site, it needs to carry out the overall flow test of the arrester to ensure the stability and safety of its use. In the prior art, in order to simulate the waveform circuit formed by multiple lightning strikes, multiple lightning strike simulation tests are carried out on the arrester simultaneously or in batches to ensure that the withstand voltage performance of the arrester is intact. During the flow detection of the arrester, because it is unknown whether the arrester is intact or the performance is in the optimal state, it is necessary to manually carry, assemble and wire repeatedly, and when performing a large-scale arrester detection test, the operation and use efficiency is low. The change of the contact resistance of the loop also caused the deviation of the test. It can be seen that the development of an automatic zinc oxide arrester multiple lightning strike simulation test device has practical application value for improving the test accuracy and reducing the difficulty of the test personnel's operation.

Contents of the invention

The object of the present invention is to provide a zinc oxide arrester multiple lightning strike simulation test device and test method to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a zinc oxide arrester multiple lightning strike simulation test device, said zinc oxide arrester multiple lightning strike simulation test device includes:

A testing machine, the lower end of one side of the testing machine is provided with an installation area, and the upper end of the installation area is provided with a lifting chamber;

A movable base plate, the movable base plate is horizontally moved by the lifting assembly and is arranged at the lower end of the lifting chamber;

An installation assembly, the installation assembly is arranged at the lower end of the movable substrate, and the installation assembly includes a positioning ring and a shaft connection frame;

A safety component, the safety component includes six protective plates, and the six protective plates are respectively movable and symmetrically arranged on the shaft connection frame;

A control assembly, the control assembly is arranged on one side of the positioning ring, and the control assembly includes six rotating seats;

Lightning arrester, the lightning arrester is vertically arranged between the six protective plates through the electrical connection assembly, and the electrical connection assembly includes an electrical connection seat and an assembly seat, one end of the lightning arrester can be electrically connected to the electrical connection seat, and the other end is connected to the electrical connection seat The electrical connection of the assembly seat;

Each of the rotating seats can drive one or more of the six protective plates close to the arrester to close the electrical connection between the electrical connection seat and the arrester; the rotating seat can drive the six protective plates One or more of the protective plates are away from the lightning arrester, so as to disconnect the electrical connection between the electrical socket and the lightning arrester.

Preferably, the lifting assembly includes a lifting cylinder, the lifting cylinder is vertically arranged at the center of the upper end of the lifting chamber, the upper end of the lifting chamber is vertically and symmetrically provided with several guide rods, and the movable base plate is horizontally arranged at the lower end of the lifting cylinder and is movably socketed with several guide rods. .

Preferably, the positioning ring is vertically arranged at the center of the lower end of the movable base plate, and the lower end of the positioning ring is in conflict with a number of adjustment slots, and the upper and lower ends of the adjustment slots are respectively horizontally provided with a first shaft and a second shaft, and the rotating seat moves The first shaft is socketed, and the second shaft is movably socketed with a telescopic push rod. The two sides of the rotating seat are respectively horizontally equipped with a first boom and a second boom, and the distance between the first boom and the telescopic push rod are connected by pin shafts.

Preferably, the shaft coupling frame is horizontally arranged at the lower end of the positioning ring through several welding rods, the shaft coupling frame is a regular hexagonal frame structure, the six sides of the shaft coupling frame are symmetrically provided with sleeve grooves, and one side of the six protective plates is uniformly provided with Connecting lugs, the connecting ears of the six protective plates are respectively set in the six socket slots of the shaft coupling frame, and the upper ends of the six protective plates are vertically inserted and placed on the inner circumference side of the positioning ring, and the protective plates are all arc-shaped The structure is set, and the six protective plates are combined into a cylindrical structure when they are in a vertical state.

Preferably, rollers are movably inserted on one side of the second arm, rail grooves are provided on the side of the protective plate close to the rollers, one side of the rollers is inserted into the rail groove, and two adjacent protective plates are embedded A sealing strip is provided, and the sealing strip is a high-temperature corrosion-resistant rubber strip.

Preferably, one side of the upper end of the protective plate is provided with an arc rod, and one side of the arc rod is movable through one side of the positioning ring. The rod is located between the blocking plate and the positioning ring, and a spring is sleeved. The electric connection seat is horizontally arranged at the lower end of the center of the movable substrate. The upper sides of the six protective plates are respectively in close contact with the outer circumference of the electric connection seat. Push rods are arranged horizontally on one side of the electric connection seat, grooves are opened on one side of the electric connection seat located on the push rod, and the push rod is inserted into the groove.

Preferably, the assembly seat is located at the lower end of the installation area, an assembly groove is provided at the upper end of the assembly seat, and several electric connection grooves are arranged vertically and symmetrically at the lower end of the assembly groove, the electric connection grooves are electrically connected with the grounding wire, and the upper and lower ends of the lightning arrester Both are equipped with mounting bolts, and the two mounting bolts are respectively fixed and connected by nuts. There are divided electric connection bases and adaptive grounding bases. Directly plugged into the assembly slot, a number of second electric connection pins are respectively inserted into several electric connection slots, the outer circumference of the assembly seat is set in a tapered structure, and the side of the six protective plates close to the assembly seat is set in a slope structure. One side of the slope at the lower end of each protective plate is combined into a conical structure, and the upper end of the assembly seat is set in contact with one side of the conical structure composed of six protective plates, and a sealing ring is sleeved on the contacting side.

Preferably, a plurality of abutment grooves are symmetrically provided on the side close to the groove in the electrical connection seat, and electric shrapnels are inserted in the several abutment grooves, and several abutment grooves respectively pass through the lower end of the electrical connection seat, and the electrical connection seat The lower end is provided with a docking groove, and the upper end of the electric socket is distinguished by a number of first electric connecting feet vertically and symmetrically arranged, and several first electric connecting feet are respectively inserted through several docking grooves and placed in the abutting groove to abut against the electric connecting shrapnel. The upper ends of several abutting grooves respectively penetrate through the grooves to provide auxiliary grooves. In the auxiliary grooves, auxiliary blocks are vertically movably inserted through anti-sliding strips. contact, and the side of the auxiliary block in contact with the push rod is set as an inclined surface.

Preferably, one side of the protective plate is vertically provided with communication grooves, and the lower end of the protective plate is connected horizontally with a docking box close to the assembly seat, and an access slot is provided for the connecting card on one side of the lower end of the docking box, and the assembly seat is arranged vertically and symmetrically. There are several fire-fighting release pipes, and the upper ends of the several fire-fighting release pipes are arranged respectively through several sealing gaskets inserted into the access grooves, and the connecting grooves run through the protective plate and are symmetrically provided with release grooves.

A multiple lightning strike simulation test method for a lightning arrester, the multiple lightning strike simulation test method for a lightning arrester is applied to the multiple lightning strike simulation test device for a zinc oxide arrester, comprising the following steps:

Step 1: Fix a number of lightning arresters to be tested with nuts and install them on the upper part of the electrical connection base and the adaptive grounding base, and make the second electrical connection pin correspond to the first electrical connection pin, and the height of the adaptive grounding base depends on the length of the arrester Adaptive customization is carried out, and the outer sides of the electric connection base and the adaptive grounding base are all insulating structures;

Step 2: Insert the adapter grounding base into the assembly slot, insert the second power connection pin into the power connection slot, start the lifting cylinder to push the movable base plate to move vertically downward, so that the lower end of the protective plate is in contact with the lower end of the installation area;

Step 3: Then according to the detection requirements, when one of the power connection detection or multiple power connection detection is required, the rotating seat is pulled and rotated by the telescopic push rod, and the roller pushes the protective plate on the corresponding side along the shaft connecting frame and the arc rod carry out activities;

Step 4: Insert the push rod into the groove, push the auxiliary block to squeeze the electric connection shrapnel and contact the first electric connection pin inserted into the abutment groove, so as to complete the band electrification detection of the arrester;

Step 5: When multi-band multiple centralized detection is required, the six protective plates are controlled together at the same time, so that the arrester is in contact with multiple electric shrapnel at the same time, and multiple detection operations are performed;

Step 6: During the detection period, with the rotation of the protective plate, the assembly seat is connected to the docking boxes of the six protective plates through six fire release pipes. Fill with inert gas or dry powder;

Step 7: After all the inspections are completed, the telescopic push rod returns to its original position. Under the rebound of the spring, the protective plate returns to the tilted open state, and the entire positioning ring and the protective plate are retracted into the lifting chamber. Remove the lightning arrester after detection. Just put in a new lightning arrester for the next detection operation.

Adopting the embodiment of the present invention has the following beneficial effects:

Through the adaptive pre-assembly of the arrester, when the arrester needs to be tested, the arrester is directly connected to the testing machine for plugging and connection. The operation is simple and the detection efficiency is high, and then it is stabilized under the action of the lifting component. Clamping installation, the test structure is stable. When multiple experiments are required, the contact resistance remains constant to ensure the accuracy of the experimental results. Then, individual band intensity detection or multiple intensity detection can be performed according to requirements.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

in:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the schematic diagram of A part of Fig. 1 of the present invention;

Fig. 3 is a schematic diagram of part B of Fig. 1 of the present invention;

Fig. 4 is a schematic diagram of the main body structure of the testing machine of the present invention;

Fig. 5 is a schematic diagram of the connection structure of the installation assembly of the present invention;

Fig. 6 is a schematic diagram of the connection structure of the shaft coupling frame of the present invention;

Fig. 7 is a schematic diagram of the connection structure of the protective plate of the present invention;

Fig. 8 is a schematic diagram of the connection structure of the arrester of the present invention.

In the figure: 1. Testing machine; 2. Movable base plate; 3. Lifting cylinder; 4. Guide rod; 5. Locating ring; 6. Protective plate; 7. Adjusting slot; 1. First boom; 11. Second boom; 12. Roller; 13. Rail groove; 14. Arc rod; 15. Spring; 16. Electric connection seat; 17. Push rod; 18. Electric shrapnel; 19 , Auxiliary block; 20, Distinguished electrical connection base; 21, First electrical connection pin; 22, Shaft connection frame; 23, Adaptive grounding base; 24, Assembly base; 27. Connecting slot; 28. Release slot; 29. Fire release pipe; 30. Lightning arrester.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Referring to accompanying drawings 1-8, the present application provides the following five embodiments of preferred solutions.

Embodiment one

A multiple lightning strike simulation test device for a zinc oxide arrester. The multiple lightning strike simulation test device for a zinc oxide arrester includes: a testing machine 1 , a movable base plate 2 , an installation component, a safety component, a control component and a lightning arrester 30 .

The lower end of one side of the testing machine is provided with an installation area, and the upper end of the installation area is provided with a lifting chamber.

The movable base plate 2 is installed horizontally at the lower end of the lifting chamber through the lifting assembly. The lifting assembly includes a lifting cylinder 3, which is vertically arranged at the center of the upper end of the lifting chamber. It is arranged at the lower end of the lift cylinder 3 and is movably socketed with several guide rods 4.

The installation assembly is located at the lower end of the movable base plate 2, and the installation assembly includes a positioning ring 5 and a shaft coupling frame 22. The positioning ring 5 is vertically arranged at the center of the lower end of the movable base plate 2, and the lower end of the positioning ring 5 is in conflict with a number of adjustment slots 7, and a number of adjustment slots 7 The upper and lower ends of the interior are respectively provided with a first shaft and a second shaft horizontally. The rotating seat 8 is movably connected to the first shaft, and the second shaft is movably connected to a telescopic push rod 9. The two sides of the rotating seat 8 A first boom 10 and a second boom 11 are arranged horizontally respectively, and the first boom 10 and the telescopic push rod 9 are movably connected by pin shafts.

The safety component includes six protective plates 6, and the six protective plates 6 are respectively movable and symmetrically socketed on the shaft coupling frame 22. The shaft coupling frame 22 is horizontally arranged at the lower end of the positioning ring 5 through several welding rods, and the shaft coupling frame 22 is a regular hexagonal frame structure. , the six sides of the shaft coupling frame 22 are symmetrically provided with socket slots, and one side of the six protective plates 6 is uniformly provided with connecting ears, and the connecting ears of the six protective plates 6 are respectively movably socketed into the six socket slots of the shaft coupling frame 22 The upper ends of the six protective plates 6 are vertically inserted and placed on one side of the inner circumference of the positioning ring 5. The protective plates 6 are all arranged in an arc-shaped structure, and when the six protective plates 6 are in a vertical state, they are combined into a cylindrical structure. One side of the second boom 11 is movably plugged with a roller 12, and the side of the protective plate 6 close to the roller 12 is provided with a rail groove 13, and one side of the roller 12 is inserted into the rail groove 13 to set, and one side of the upper end of the protective plate 6 is provided with Arc rod 14, one side of the arc rod 14 is movable through one side of the positioning ring 5, and the side of the arc rod 14 exposed on the outer side of the protective plate 6 is provided with a baffle, and the arc rod 14 is located between the baffle and the locating ring. 5 are all socketed with springs 15, and the electric connection seat 16 is horizontally arranged at the lower end of the center of the movable substrate 2. The upper ends of the six protective plates 6 are in close contact with the outer circumference side of the electric connection seat 16 respectively, and the protective plates 6 are close to A push rod 17 is horizontally arranged on one side of the electric connection seat 16, and a groove is provided on one side of the electric connection seat 16 at the push rod 17, and the push rod 17 is inserted into the groove.

The control assembly is arranged on one side of the positioning ring 5 , and the control assembly includes six rotating seats 8 .

The arrester 30 is vertically arranged between the six protective plates 6 through the electrical connection assembly, and the electrical connection assembly includes the electrical connection seat 16 and the assembly seat 24. One end of the lightning arrester 30 can be electrically connected to the electrical connection seat 16, and the other end is connected to the assembly seat 24. electrical connection, so as to electrically connect the arrester 30 to the zinc oxide arrester multiple lightning strike simulation test device. The assembly seat 24 is located at the lower end of the installation area, and the upper end of the assembly seat 24 is provided with an assembly groove. The lower end of the assembly groove is vertically and symmetrically provided with a number of electric connection grooves, and the electric connection grooves are electrically connected with the grounding wire. Bolts, the two mounting bolts are respectively fixedly connected by nuts and are provided with a distinguishing grounding seat 20 and an adaptive grounding seat 23, and the lower end of the adaptive grounding seat 23 is vertically and symmetrically provided with a number of second electric connecting feet 25, and the adaptive grounding seat 23 Vertically inserted into the assembly groove, a number of second electric connection pins 25 are inserted into several electric connection grooves respectively, and one side of the outer circumference of the assembly seat 24 is provided with a tapered structure, and the side of the electric connection seat 16 near the groove is symmetrically provided with Several abutment grooves, all of which are plugged with electric shrapnel 18, several abutment grooves respectively run through the lower end of the electric connection seat 16, and the lower end of the electric connection seat 16 is provided with a docking groove, and the upper end of the electric connection seat 20 is vertically connected. A plurality of first power-connecting pins 21 are arranged symmetrically, and the plurality of first power-connecting pins 21 respectively penetrate through a plurality of docking grooves and are placed in the abutment grooves to abut against the power-connecting shrapnel 18 .

It can be understood that by assembling the lightning arrester 30 with the matching grounding base 23 and the distinguishing electrical connecting base 20, the second electrical connecting pin 25 is installed in the electrical connecting groove, and finally the first electrical connecting pin 25 is connected to the electrical connecting slot through the electrical connecting shrapnel 18. The electrical connection between the electrical pin 21 and the electrical connection seat 16 can complete the electrical connection between the arrester 30 and the zinc oxide arrester multiple lightning strike simulation test device, and then detect the arrester 30, thereby facilitating the detection of the arrester 30 by operators and improving the detection efficiency.

In this embodiment, each rotating seat 8 can drive one or more of the six protective plates 6 close to the arrester 30 to close the electrical connection between the electrical connection seat 16 and the arrester 30; the rotating seat 8 can drive the six protective plates 6 One or more of the plates 6 are remote from the arrester 30 to break the electrical connection between the electrical socket 16 and the arrester 30 .

It can be understood that, through the adaptive pre-assembly of the arrester 30, when the arrester 30 needs to be tested, the arrester 30 is directly connected to the testing machine 1 for plug-in connection, which is easy to operate and has high detection efficiency. Under the action of the lifting component, it is stably clamped and installed, and the test structure is stable. When multiple experiments are required, the contact resistance remains constant to ensure the accuracy of the experimental results. Then, individual band intensity detection or multiple intensity detection can be performed according to requirements.

A multiple lightning strike simulation test method for a lightning arrester, the multiple lightning strike simulation test method for a lightning arrester is applied to the multiple lightning strike simulation test device for a zinc oxide arrester, comprising the following steps:

Step 1: Fix a number of lightning arresters 30 to be tested with nuts and install them on the upper part of the electrical connection base 20 and the matching grounding base 23, and make the second electrical connection pin 25 correspond to the first electrical connection pin 21, and the matching grounding base 23 The height can be customized according to the length of the arrester 30, and the outer sides of the electrical connection base 20 and the matching grounding base 23 are insulating structures.

Step 2: Insert the grounding base 23 into the assembly groove, insert the second power connection pin 25 into the power connection groove, activate the lifting cylinder 3 to push the movable base plate 2 to move vertically downward, and make the lower end of the protective plate 6 contact with the lower end of the installation area.

Step 3: Then according to the detection requirements, when one or more power connection detections are required, the telescopic push rod 9 pulls and rotates the rotating seat 8, and the roller 12 pushes the corresponding side of the protective plate 6 along the axis to connect the frame 22 and arc bar 14 are moved.

Step 4: Insert the push rod 17 into the groove, and push the auxiliary block 19 to squeeze the power-connecting shrapnel 18 into abutting contact with the first power-connecting pin 21 inserted into the abutting groove, so as to complete the band electrification detection of the arrester 30 .

Step 5: When multi-band multiple centralized detection is required, the six protective plates 6 are simultaneously controlled so that the lightning arrester 30 is in contact with multiple electric shrapnel 18 at the same time to perform multiple detection operations.

Step 6: During the detection period, with the rotation of the protective plate 6, the assembly seat 24 is respectively connected to the docking boxes 26 of the six protective plates 6 through the six fire release pipes 29. When the arrester 30 is overwhelmed, the test detects spontaneous combustion or explosion During this time, inert gas or dry powder is filled into the communication tank 27 to realize rapid cooling and fire extinguishing operations, and under the protection of the six protective plates 6, it will not spread to the outside, so it is safe to use.

Step 7: After all the inspections are completed, the telescopic push rod 9 returns to the original position, and under the rebound action of the spring 15, the protective plate 6 returns to the tilted open state, and the entire positioning ring 5 and the protective plate 6 are retracted into the lifting chamber, and the Remove the lightning arrester 30 after detection, and put in a new lightning arrester 30 for the next detection operation.

It can be understood that by assembling the lightning arrester 30 with the matching grounding base 23 and the distinguishing electrical connecting base 20, the second electrical connecting pin 25 is installed in the electrical connecting groove, and finally the first electrical connecting pin 25 is connected to the electrical connecting slot through the electrical connecting shrapnel 18. The electrical connection between the electric pin 21 and the electrical connection seat 16 can complete the electrical connection between the arrester 30 and the multiple lightning strike simulation test device of the zinc oxide arrester, and then detect the arrester 30, thereby facilitating the detection of the arrester 30 by the operator. Carry out adaptive pre-assembly. When the arrester 30 needs to be tested, directly take the arrester 30 and connect it with the testing machine 1. The operation is simple and the detection efficiency is high, and then it is stabilized under the action of the lifting component. Clamping installation, the test structure is stable. When multiple experiments are required, the contact resistance remains constant to ensure the accuracy of the experimental results. Then, individual band intensity detection or multiple intensity detection can be performed according to requirements.

Embodiment two

On the basis of the first embodiment, a sealing strip is embedded between two adjacent protective plates 6 , and the sealing strip is a high-temperature corrosion-resistant rubber strip, which is sealed in a combined state.

Embodiment three

On the basis of Embodiment 2, the side of the six protective plates 6 close to the mounting seat 24 is provided with a slope structure, and the slope side of the lower end of the six protective plates 6 is combined into a tapered structure. The upper end of the assembly seat 24 is connected to the six protective plates One side of the conical structure composed of 6 is set in contact with each other, and a sealing ring is socketed on the contact side to seal off the environment during multiple detections, avoiding external environmental interference and preventing the failure of the lightning arrester 30 from affecting the external environment.

Embodiment four

On the basis of the third embodiment, the upper ends of several abutting grooves are provided with auxiliary grooves through the grooves respectively. In the auxiliary grooves, auxiliary blocks 19 are vertically movably inserted through the anti-sliding strips. The upper and lower ends of the auxiliary blocks 19 are respectively It is in contact with the push rod 17 and the power connection shrapnel 18, and the side of the auxiliary block 19 in contact with the push rod 17 is an inclined surface. When the protective plate 6 is in the vertical state, it controls the power connection of the arrester 30.

Embodiment five

On the basis of Embodiment 4, a connecting groove 27 is vertically opened on one side of the protective plate 6, and a docking box 26 is provided for horizontal communication at the lower end of the protective plate 6 close to the assembly seat 24, and a connecting card is provided on one side of the lower end of the docking box 26. Into the groove, the assembly seat 24 is vertically and symmetrically provided with several fire-fighting release pipes 29, and the upper ends of several fire-fighting release pipes 29 are respectively inserted into the access grooves through several sealing gaskets, and the communication groove 27 penetrates the protective plate 6 and is symmetrically provided with release grooves 28, Carry out fire protection, deal with sudden dangers in time, and avoid aggravated losses.

When in use, a number of arresters 30 to be detected are fixed with nuts and installed on the upper part of the electrical connection base 20 and the matching grounding base 23, and the second electrical connection pin 25 is set correspondingly to the first electrical connection pin 21, and the matching grounding base 23 The height can be customized according to the length of the lightning arrester 30, and the outer sides of the electrical connection base 20 and the adaptive grounding base 23 are insulating structures, the adaptive grounding base 23 is inserted into the assembly groove, and the second electrical connection pin 25 is inserted into the grounding base Electric tank, start the lifting cylinder 3 to push the movable base plate 2 to move vertically downward, so that the lower end of the protective plate 6 is in contact with the lower end of the installation area, and then according to the detection requirements, when one or more electric connection detections are required, the telescopic The push rod 9 pulls and rotates the rotating seat 8, the roller 12 pushes the protective plate 6 on the corresponding side to move along the shaft connection frame 22 and the arc rod 14, the push rod 17 is inserted into the groove, and the auxiliary block 19 is pushed to squeeze and connect the power supply. The shrapnel 18 abuts and contacts with the first electrical connection pin 21 inserted into the abutting groove, thereby completing the power-on detection of this band. A plurality of contact shrapnel 18 contacts to perform multiple detection operations. During the detection period, as the protection plate 6 rotates, the assembly seat 24 communicates with the docking boxes 26 of the six protection plates 6 through six fire-fighting release pipes 29 respectively. When the surge arrester 30 is overwhelmed and the test detects spontaneous combustion or explosion, the communication tank 27 is filled with inert gas or dry powder to realize rapid cooling and fire extinguishing operations, and under the protection of the six protective plates 6, it will not spread to the outside. It is safe to use. After all the inspections are completed, the telescopic push rod 9 returns to its original position. Under the rebound effect of the spring 15, the protective plate 6 returns to the tilted open state, and the entire positioning ring 5 and the protective plate 6 are retracted into the lifting chamber. Remove the lightning arrester 30 after detection, and put in a new lightning arrester 30 for the next detection operation.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. A zinc oxide arrester multiple lightning strike simulation test device is characterized in that: the zinc oxide arrester multiple lightning strike simulation test device comprises: A testing machine (1), the lower end of one side of the testing machine (1) is provided with an installation area, and the upper end of the installation area is provided with a lifting chamber; A movable base plate (2), the movable base plate (2) is arranged at the lower end of the lifting chamber through the horizontal movement of the lifting component; An installation assembly, the installation assembly is arranged at the lower end of the movable base plate (2), and the installation assembly includes a positioning ring (5) and a shaft connection frame (22); A safety component, the safety component includes six protective plates (6), and the six protective plates (6) are respectively movable and symmetrically arranged on the sleeve shaft connection frame (22); A control assembly, the control assembly is arranged on one side of the positioning ring (5), and the control assembly includes six rotating seats (8); A lightning arrester (30), the lightning arrester (30) is vertically arranged between six protective plates (6) through the electrical connection assembly, and the electrical connection assembly includes an electrical connection seat (16) and an assembly seat (24), the lightning arrester (30) One end can be electrically connected to the electrical connector (16), and the other end can be electrically connected to the assembly seat (24); Each of the rotating seats (8) can drive one or more of the six protective plates (6) close to the lightning arrester (30), so as to close the electric connection seat (16) and the lightning arrester (30) The electrical connection between; the rotating seat (8) can drive one or more of the six protective plates (6) away from the lightning arrester (30), so as to disconnect the electrical connection seat (16) from the Electrical connection between the lightning arresters (30). 2. A zinc oxide lightning arrester multiple lightning strike simulation test device according to claim 1, characterized in that: the lifting assembly includes a lifting cylinder (3), and the lifting cylinder (3) is vertically arranged at the center of the upper end of the lifting chamber, and the lifting A plurality of guide rods (4) are arranged vertically and symmetrically at the upper end of the room, and a movable base plate (2) is horizontally arranged at the lower end of the lifting cylinder (3) and is movably socketed with a plurality of guide rods (4). 3. A zinc oxide lightning arrester multiple lightning strike simulation test device according to claim 2, characterized in that: the positioning ring (5) is vertically arranged at the center of the lower end of the movable substrate (2), and the lower end of the positioning ring (5) interferes with A number of adjustment grooves (7) are provided, and the upper and lower ends of the number of adjustment grooves (7) are respectively horizontally provided with a first shaft and a second shaft. The rods are movably socketed with a telescopic push rod (9), and the two sides of the rotating seat (8) are respectively horizontally provided with a first boom (10) and a second boom (11), and the first boom (10) and The telescopic push rods (9) are flexibly connected by pin shafts. 4. a kind of zinc oxide lightning arrester multiple lightning strike simulation test device according to claim 3, is characterized in that: described shaft coupling frame (22) is horizontally arranged on the positioning ring (5) lower end by several welding rods, shaft coupling frame ( 22) is a regular hexagonal frame structure, and the six sides of the shaft coupling frame (22) are symmetrically provided with socket grooves, and one side of the six protective plates (6) is uniformly provided with connecting ears, and the connecting ears of the six protective plates (6) are respectively The six socket grooves of the movable sleeve shaft connection frame (22) are arranged, and the upper ends of the six protective plates (6) are respectively vertically plugged and placed on one side of the inner circumference of the positioning ring (5), and the protective plates (6) are all arcs. Shaped structure is arranged, and when six protective plates (6) vertical state are combined into cylindrical structure and set. 5. A zinc oxide lightning arrester multiple lightning strike simulation test device according to claim 4, characterized in that: one side of the second boom (11) is movably plugged with a roller (12), and the protective plate (6 ) is provided with a rail groove (13) on one side close to the roller (12), the side of the roller (12) is inserted into the rail groove (13), and a sealing strip is embedded between two adjacent protective plates (6). And the sealing strip is a high temperature corrosion resistant rubber strip. 6. A zinc oxide lightning arrester multiple lightning strike simulation test device according to claim 5, characterized in that: one side of the upper end of the protective plate (6) is provided with an arc rod (14), and the arc rod (14) One side is all movable and runs through the location ring (5) one side and is provided with, and the side that arc bar (14) exposes and is located at the outer side of protective plate (6) is provided with catch piece, and arc bar (14) is positioned at catch piece and location ring ( 5) Springs (15) are socketed between them, and the electric connection seat (16) is horizontally arranged at the lower end of the center of the movable base plate (2). One side of the outer circumference is in close contact, and the side of the protective plate (6) close to the electrical connection seat (16) is equipped with push rods (17) horizontally, and the electrical connection seat (16) is provided with grooves on the side of the push rod (17) , and the push rod (17) is inserted into the groove setting. 7. A zinc oxide lightning arrester multiple lightning strike simulation test device according to claim 6, characterized in that: the assembly seat (24) is located at the lower end of the installation area, and the upper end of the assembly seat (24) is provided with an assembly groove, and the assembly groove The inner lower end is vertically and symmetrically provided with a number of electric connection grooves, and the electric connection grooves are electrically connected with the grounding wire, and the upper and lower ends of the lightning arrester (30) are provided with mounting bolts, and the two mounting bolts are respectively fixed and connected by nuts. The electric base (20) and the adapted ground base (23), the lower end of the adapted ground base (23) is vertically and symmetrically provided with a number of second electric connection pins (25), and the adapted ground base (23) is vertically inserted into the assembly groove Inside, a number of second electrical connection pins (25) are respectively plugged into a plurality of electrical connection grooves, and the outer circumference side of the assembly seat (24) is provided with a tapered structure, and the six protective plates (6) are close to the side of the assembly seat (24) They are all provided with a slope structure, the slopes at the lower ends of the six protective plates (6) are combined to form a tapered structure, and the upper end of the assembly seat (24) is set in contact with one side of the tapered structure formed by the six protective plates (6), and The contacting side is sleeved with a sealing ring. 8. A zinc oxide lightning arrester multiple lightning strike simulation test device according to claim 7, characterized in that: a plurality of abutment grooves are symmetrically opened on the side close to the groove in the electrical connection seat (16), and a plurality of abutment grooves The electric connection shrapnel (18) is inserted in the inner part, and several abutment grooves respectively run through the lower end of the electric connection seat (16), and the lower end of the electric connection seat (16) is provided with a butt joint groove, and the upper end of the electric connection seat (20) is vertically symmetrical There are several first electric connection pins (21), and several first electric connection feet (21) are inserted through several docking grooves and placed in the abutment grooves to abut against the electric shrapnel (18), and the several abutment grooves Auxiliary grooves are provided on the upper ends respectively through the grooves, and auxiliary blocks (19) are vertically movably inserted in the auxiliary grooves through the anti-sliding strips. The upper and lower ends of the auxiliary blocks (19) are respectively connected with the push rod (17) and the power One side of the shrapnel (18) is in contact, and the side of the auxiliary block (19) in contact with the push rod (17) is an inclined surface. 9. A zinc oxide lightning arrester multiple lightning strike simulation test device according to claim 8, characterized in that: one side of the protective plate (6) is vertically provided with communicating grooves (27), and the protective plate (6) A docking box (26) is provided at the lower end close to the assembly seat (24) for horizontal communication, and an access slot is provided on one side of the lower end of the docking box (26). , the upper ends of several fire-fighting release pipes (29) are arranged through several sealing pads inserted into the access grooves, and the communication grooves (27) run through the protective plate (6) and are symmetrically provided with release grooves (28). 10. A lightning arrester multiple lightning strike simulation test method, the lightning arrester multiple lightning strike simulation test method is applied to the zinc oxide arrester multiple lightning strike simulation test device described in any one of claims 1-9, comprising the following steps: Step 1: Fix several lightning arresters (30) to be tested with nuts and install the upper part of the electrical connection base (20) and the matching grounding base (23), and make the second electrical connection pin (25) and the first electrical connection pin ( 21) Corresponding settings, the height of the adaptive grounding seat (23) is customized according to the length of the arrester (30), and the outer sides of the electric connection seat (20) and the adaptive grounding seat (23) are all insulating structures; Step 2: Insert the grounding base (23) into the assembly groove, insert the second power connection pin (25) into the power connection groove, start the lifting cylinder (3) to push the movable base plate (2) to move vertically downward, so that the protective plate ( 6) The lower end is in contact with the lower end of the installation area; Step 3: Then according to the detection requirements, when one or more power connection detections are required, the rotating seat (8) is pulled and rotated by the telescopic push rod (9), and the roller (12) pushes the protective plate on the corresponding side (6) move along the shaft coupling frame (22) and the arc bar (14); Step 4: Insert the push rod (17) into the groove, push the auxiliary block (19) to squeeze the electric connection shrapnel (18) and make contact with the first electric connection pin (21) inserted into the abutment groove, thus completing the lightning arrester (30) power-on detection; Step 5: When multi-band multiple centralized detection is required, simultaneously control the six protective plates (6) so that the lightning arrester (30) contacts with multiple shrapnels (18) at the same time to perform multiple detection operations; Step 6: During the detection period, with the rotation of the protective plate (6), the assembly seat (24) is respectively connected to the docking boxes (26) of the six protective plates (6) through the six fire release pipes (29). When the surge arrester (30) is overwhelmed and the test detects spontaneous combustion or explosion, inert gas or dry powder is filled in the communication groove (27); Step 7: After all the inspections are completed, the telescopic push rod (9) returns to its original position, and under the rebound action of the spring (15), the protective plate (6) returns to the tilted open state, and the entire positioning ring (5) and the protective The plate (6) is retracted into the lifting chamber, the lightning arrester (30) after detection is taken off, and a new lightning arrester (30) is put into it for the next detection operation.

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