CN113687203B - Insulation test equipment for insulation product and accident protection structure - Google Patents
Insulation test equipment for insulation product and accident protection structure Download PDFInfo
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- CN113687203B CN113687203B CN202111245638.8A CN202111245638A CN113687203B CN 113687203 B CN113687203 B CN 113687203B CN 202111245638 A CN202111245638 A CN 202111245638A CN 113687203 B CN113687203 B CN 113687203B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/36—Overload-protection arrangements or circuits for electric measuring instruments
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Abstract
The invention discloses an insulation test device and an accidental protection structure for an insulation product, which comprise: arc test base, motion feeler lever and drive connect the pole, and the top surface fixed mounting of arc test base has the electric arc to survey the translucent cover and be located the inside mounting bracket of electric arc observation translucent cover, and the articulated top that is fixed in the mounting bracket of one end of motion feeler lever, quiet terminal contact row and mounting bracket are symmetrical arrangement in the top surface of arc test base, and the inside of arc test base is equipped with the control terminal who is connected with motion feeler lever, quiet terminal contact row tip electricity. According to the invention, a sealed vacuum arc observing chamber structure is constructed, the arc test base is used for vacuumizing to carry out an arc observation experiment on the insulating product, and after the critical point of the insulating product insulation breakdown is reached in the process of gradually increasing the passing current, the insulation breakdown is sensed in an arc observation mode so as to read the insulation critical value, so that the operation is convenient and fast, and the safety is high.
Description
Technical Field
The invention relates to the technical field of circuit testing, in particular to an insulation testing device and an accident protection structure for an insulation product.
Background
The trend of electric power development is spread all over, the electric power is provided for people's life and brings great convenient enjoyment on working, the electric power brings convenience to people and simultaneously can cause injury and trouble to people's life under the condition of improper use, therefore, the relevant electric power equipment production and working field in China not only places the gravity center on the research and development and popularization of products, but also places a great part of the gravity center on the use safety of electric power equipment, in the detection process of the electric power equipment, the detection tool of the electric power equipment is a non-neglectable device, not only can quickly detect the electric power safety condition of the electric power equipment, but also has higher safety in the electric power safety detection process, wherein the safety comes from the excellent insulation property of the casing of the detection tool of the electric power equipment, but in the existing news report, the electric power detection accident also happens occasionally, some reasons are insulation failure of the power equipment detection tool itself, and a great part of reasons are that after the power equipment detection tool leaves a factory, a merchant has an improper insulation detection method for the power equipment detection tool.
With the rapid development of the electric power industry in China, the preventive experiment of electrical equipment is an important link in ensuring the safe operation and maintenance work of an electric power system, insulation diagnosis is an important means for detecting insulation defects or faults of the electrical equipment, leakage and aging of a porcelain insulator on a power transmission pole can cause electric leakage, the pole can become a conductor at the moment, current flows to the ground along the pole, a large amount of electric energy is wasted, and the safety of electric power workers is directly related, while the existing insulation test equipment mainly adopts contact insulation test, the input control of gradual current cannot be carried out in the test, the critical breakdown current of an insulation material is obtained by continuously increasing the current through current detection so as to judge the insulation performance, no effective protection structure exists when the current breaks down, and safety accidents such as explosion and the like due to circuit short circuit can not be effectively protected, there are certain drawbacks.
Disclosure of Invention
The present invention is directed to solving one of the technical problems of the prior art or the related art.
Therefore, the technical scheme adopted by the invention is as follows: insulation testing apparatus and accidental protection structures for insulation articles comprising: the electric arc testing device comprises an electric arc testing base, a moving contact rod, a static terminal contact row and a driving connecting rod, wherein an electric arc observation transparent cover and a mounting frame positioned inside the electric arc observation transparent cover are fixedly installed on the top surface of the electric arc testing base, one end of the moving contact rod is hinged and fixed to the top end of the mounting frame, the driving connecting rod is fixed to the top surface of the electric arc testing base, one end of the driving connecting rod is movably connected with the bottom surface of the moving contact rod, the static terminal contact row and the mounting frame are symmetrically arranged on the top surface of the electric arc testing base, a control terminal electrically connected with the end portions of the moving contact rod and the static terminal contact row is arranged inside the electric arc testing base, and a display panel is arranged on the surface of the electric arc testing base; the motion contact rod comprises a large-current contact rod, a counterweight contact rod, an electrode connecting contact and a large-current power connection assembly, wherein the large-current contact rod, the counterweight contact rod and the electrode connecting contact are mutually connected, the large-current power connection assembly is positioned in the large-current contact rod, an instantaneous power connection control cavity is arranged in the large-current contact rod, the large-current contact rod is of an insulating ceramic tube structure, electrode contacts are fixedly installed at two ends of the instantaneous power connection control cavity, and a ceramic sheath is fixedly sleeved on the outer side of the counterweight contact rod; the high-current power connection assembly comprises a piston rod cylinder, a moving piston and a moving electrode rod, a resistance guide plate is fixedly mounted on one side of the piston rod cylinder, two ends of the resistance guide plate are electrically connected with the electrode contacts, and a metal sodium block located inside the piston rod cylinder is fixedly adhered to one side of the resistance guide plate.
The present invention in a preferred example may be further configured to: the arc observation penetrating cover is of a transparent glass cover structure, one side of the arc observation penetrating cover is fixedly communicated with a vacuum pump, the moving contact rod, the static terminal contact row and the driving connecting rod are hermetically wrapped by the arc observation penetrating cover to form a vacuum arc observation chamber structure, and the arc observation penetrating cover is arranged on one side of the arc test base.
By adopting the technical scheme, the arc test base is sealed and pumped into a vacuum state, the test is started, the connection voltage of the moving contact rod and the end part of the static terminal contact bar is gradually increased, the arc test base is utilized for vacuumizing to carry out an arc observation experiment of an insulating product, and the insulating breakdown is sensed in an arc observation mode after the critical point of the insulating product is reached in the process of gradually increasing the passing current, so that the insulating critical value is read.
The present invention in a preferred example may be further configured to: the inside of the instantaneous electric control cavity is filled with sulfur hexafluoride gas, and the gas pressure is 0.4-0.7 MPa.
By adopting the technical scheme, the movable electrode and the static electrode connecting contact cannot form obvious large electric arc through sulfur hexafluoride gas connected with the inside of the electric control cavity instantly, the electric arc is quickly lapped, the accidents that the electrode contact and the moving electrode rod are easy to generate thermal breakdown and electric arc combustion when being lapped are avoided, arc extinguishing protection is carried out instantly by utilizing the sulfur hexafluoride gas to carry out electric connection between the electrode contact and the moving electrode rod, and the generation of high-voltage electric arc is inhibited.
The present invention in a preferred example may be further configured to: the moving electrode rods are symmetrically distributed at two ends of the piston rod cylinder, the piston rod cylinder is of a metal copper pipe structure, and the moving electrode rods and electrode contacts at the two ends are arranged in an opposite manner; the motion piston is symmetrically distributed on the inner wall of the piston rod cylinder and is in sliding fit with the inner wall of the piston rod cylinder, and one end of the motion electrode rod is fixedly connected with the surface of the motion piston.
Through adopting above-mentioned technical scheme, make it generate heat rapidly and produce a large amount of sodium steam through heating metal sodium piece when electric current passes through resistance guide plate electric current, promote the piston switch-on electrode fast, realize the switch-on of heavy current, improve electric conduction efficiency, avoid the electric current breakdown that contact failure produced.
The present invention in a preferred example may be further configured to: the moving contact rods and the static terminal contact rows are the same in number and correspond to one another, the static terminal contact rows are located on the motion path of the end heads of the moving contact rods, and the end heads of the moving contact rods and the end heads of the static terminal contact rows are communicated through electrodes of insulating products.
Through adopting above-mentioned technical scheme, will await measuring insulating goods and place in quiet terminal contact row end and carry out the electrode intercommunication through the overlap joint of motion feeler lever tip and insulating goods surface, when insulating goods puncture critical value, produce the electric arc intercommunication.
The present invention in a preferred example may be further configured to: the counter weight contact pole is the high temperature ceramic material component, the fixed outside of cup jointing in electrode connection contact of counter weight contact pole, the drive connects the tie point that pole and motion feeler lever to be located the surface of heavy current contact pole, and the focus of motion feeler lever is kept away from the drive and is connected the tie point of pole and motion feeler lever and be partial to the one end of counter weight contact pole.
By adopting the technical scheme, when an accident happens, the moving contact rod can be quickly away from the insulating product due to the drooping deflection of gravity, and the isolation electrode is connected, so that the safety accident is avoided.
The present invention in a preferred example may be further configured to: the driving connecting rod is of a gas driving rod structure, the driving connecting rod is an insulating material component, and the bottom end of the driving connecting rod is movably connected with the surface of the arc testing base.
Through adopting above-mentioned technical scheme, through the overlap joint of pneumatic promotion motion feeler lever and quiet terminal contact row, guarantee the circuit isolation between motion feeler lever and the electric arc test base, avoid the emergence of electric leakage accident.
The beneficial effects obtained by the invention are as follows:
1. according to the invention, a sealed vacuum arc observing chamber structure is constructed, the arc test base is used for vacuumizing to carry out an arc observation experiment on the insulating product, and after the critical point of the insulating product insulation breakdown is reached in the process of gradually increasing the passing current, the insulation breakdown is sensed in an arc observation mode so as to read the insulation critical value, so that the operation is convenient and fast, and the safety is high.
2. According to the invention, the secondary power-on type high-current contact rod structure is arranged, so that the electrode connecting contact unit has the functions of connecting current and isolating a power supply, the lapping speed of the electrode contact and the moving electrode rod reaches the maximum value through the promotion of sodium block steam and the thermal expansion effect when the current is connected, sulfur hexafluoride gas in the electric control cavity is connected instantaneously, so that the movable and static electrode connecting contact cannot form obvious high electric arc, the electric arc is quickly closed, the high current is passed through the test, the connecting effect is improved, the current breakdown in the contact rod is avoided, and the equipment safety is improved.
3. According to the invention, the secondary power connection control is carried out by utilizing the current thermal effect and the thermal expansion effect, when the current passes through the resistance guide plate, the metal sodium block is heated rapidly by the heating current to generate a large amount of sodium vapor, the piston is pushed to be connected with the electrode rapidly, the conductor is used for conducting self-heating to continuously keep the circuit connection in work, the sodium vapor is cooled and recovered to be a soft solid state after short-time heat dissipation during the brake disconnection, and the negative pressure recovery ensures the repeated and stable use of the on-off structure.
Drawings
FIG. 1 is a schematic overall structure diagram of one embodiment of the present invention;
FIG. 2 is a schematic view of an arc observation through-shield mounting structure according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a kinematic contact bar, a stationary terminal contact row, and a drive link bar according to one embodiment of the present invention;
FIG. 4 is a schematic diagram of a kinematic feeler lever according to one embodiment of the present invention;
FIG. 5 is a cross-sectional structural diagram of a kinematic feeler lever according to one embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a high-current power connection assembly according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a power-on operation according to an embodiment of the present invention.
Reference numerals:
100. an arc test base; 110. an arc observation transparent cover; 120. a mounting frame; 130. a display panel;
200. a motion feeler lever; 210. a high current contact bar; 220. a counterweight contact rod; 230. an electrode connection contact; 240. a high-current power connection assembly; 211. connecting an instant electric control cavity; 212. an electrode contact; 241. a piston rod cylinder; 242. a resistance guide plate; 243. a moving piston; 244. a moving electrode rod; 245. a metallic sodium block;
300. a stationary terminal contact bank;
400. the connecting rod is driven.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
It is to be understood that this description is made only by way of example and not as a limitation on the scope of the invention.
Insulation test equipment for insulation articles and an accident protection structure provided by some embodiments of the present invention are described below with reference to the accompanying drawings.
As shown in fig. 1 to 7, the present invention provides an insulation test apparatus for an insulation product and an accident protection structure, including: the electric arc testing device comprises an electric arc testing base 100, a moving contact rod 200, a static terminal contact row 300 and a driving connecting rod 400, wherein the top surface of the electric arc testing base 100 is fixedly provided with an electric arc observation through cover 110 and a mounting frame 120 positioned in the electric arc observation through cover 110, one end of the moving contact rod 200 is hinged and fixed to the top end of the mounting frame 120, the driving connecting rod 400 is fixed to the top surface of the electric arc testing base 100, one end of the driving connecting rod is movably connected with the bottom surface of the moving contact rod 200, the static terminal contact row 300 and the mounting frame 120 are symmetrically arranged on the top surface of the electric arc testing base 100, a control terminal electrically connected with the ends of the moving contact rod 200 and the static terminal contact row 300 is arranged in the electric arc testing base 100, and the surface of the electric arc testing base 100 is provided with a display panel 130; the moving contact rod 200 comprises a large-current contact rod 210, a counterweight contact rod 220, an electrode connecting contact 230 and a large-current power connection assembly 240 positioned in the large-current contact rod 210, wherein the large-current contact rod 210, the counterweight contact rod 220 and the electrode connecting contact are mutually connected, an instantaneous power connection control cavity 211 is arranged in the large-current contact rod 210, the large-current contact rod 210 is of an insulating ceramic tube structure, electrode contacts 212 are fixedly installed at two ends of the instantaneous power connection control cavity 211, and a ceramic sheath is fixedly sleeved on the outer side of the counterweight contact rod 220; the high-current power connection assembly 240 comprises a piston rod cylinder 241, a moving piston 243 and a moving electrode rod 244, wherein a resistance guide plate 242 is fixedly mounted on one side of the piston rod cylinder 241, two ends of the resistance guide plate 242 are electrically connected with the electrode contact 212, and a metal sodium block 245 positioned in the piston rod cylinder 241 is fixedly adhered on one side of the resistance guide plate 242.
In this embodiment, the arc observation transparent cover 110 is a transparent glass cover structure, a vacuum pump is fixedly communicated with one side of the arc observation transparent cover 110, and the moving contact rod 200, the stationary terminal contact row 300 and the driving connection rod 400 are hermetically wrapped by the arc observation transparent cover 110 to form a vacuum arc observation chamber structure.
Specifically, the arc test base 100 is sealed and evacuated to a vacuum state, a test is started, the connection voltage of the moving contact rod 200 and the end of the static terminal contact bank 300 is gradually increased, the arc test base 100 is evacuated to perform an arc observation experiment on the insulation product, and the insulation breakdown is sensed in an arc observation mode after the current passing through the arc test base reaches the insulation breakdown critical point of the insulation product in the process of gradually increasing the passing current, so that the insulation critical value is read.
In this embodiment, the transient electronic control cavity 211 is filled with sulfur hexafluoride gas, and the gas pressure is 0.4-0.7 MPa.
Specifically, sulfur hexafluoride gas in the instantaneous electric control cavity 211 enables the movable electrode and the static electrode to be connected with the contact terminals and cannot form obvious large electric arcs, the contact terminals are quickly lapped, accidents that thermal breakdown and electric arc combustion are prone to happening when the electrode contacts 212 are lapped with the moving electrode rods 244 due to electric shock are avoided, arc extinguishing protection is conducted instantaneously when the electrode contacts 212 are electrically connected with the moving electrode rods 244 through the sulfur hexafluoride gas, and generation of high-voltage electric arcs is restrained.
In this embodiment, the moving electrode rods 244 are symmetrically distributed at two ends of the piston rod cylinder 241, the piston rod cylinder 241 is a metal copper tube structure, and the moving electrode rods 244 are arranged opposite to the electrode contacts 212 at the two ends; the moving piston 243 is symmetrically distributed on the inner wall of the piston rod cylinder 241 and is in sliding fit with the inner wall of the piston rod cylinder 241, and one end of the moving electrode rod 244 is fixedly connected with the surface of the moving piston 243.
Specifically, when current passes through the resistance guide plate 242, the current is heated rapidly by heating the metal sodium block 245 to generate a large amount of sodium vapor, the piston is pushed rapidly to be connected with the electrode, the large current is connected, the electric conduction efficiency is improved, and the current breakdown caused by poor contact is avoided.
In this embodiment, the moving contact rods 200 and the static terminal contact rows 300 are equal in number and correspond to each other one by one, the static terminal contact rows 300 are located on the moving path of the tips of the moving contact rods 200, and the tips of the moving contact rods 200 and the static terminal contact rows 300 are in electrode communication through the insulation product.
Specifically, the insulating product to be tested is placed at the end of the static terminal contact row 300 and is in electrode communication through the lapping of the end of the moving contact rod 200 and the surface of the insulating product, and when the insulating product breaks down to a critical value, arc communication is generated.
In this embodiment, the weight contact rod 220 is a high temperature ceramic member, the weight contact rod 220 is fixedly sleeved outside the electrode connecting contact 230, the connection point of the driving link rod 400 and the moving contact rod 200 is located on the surface of the high current contact rod 210, and the center of gravity of the moving contact rod 200 is far away from the connection point of the driving link rod 400 and the moving contact rod 200 and is biased to one end of the weight contact rod 220.
Specifically, when an accident occurs, the moving contact rod 200 may be sagged and deflected by gravity to be away from the insulation product, and the contact of the electrodes is isolated, thereby avoiding a safety accident.
In this embodiment, the driving link rod 400 is a pneumatic driving rod structure, the driving link rod 400 is an insulating member, and the bottom end of the driving link rod 400 is movably connected to the surface of the arc test base 100.
Specifically, the moving contact rod 200 and the static terminal contact row 300 are pneumatically pushed to be overlapped, so that circuit isolation between the moving contact rod 200 and the arc test base 100 is guaranteed, and electric leakage accidents are avoided.
The working principle and the using process of the invention are as follows:
fixing an insulation product to be detected on the surface of a static terminal contact row 300, starting a driving connecting rod 400 to lift a moving contact rod 200, enabling the end part of an electrode connecting contact 230 to be abutted against the surface of the insulation product, sealing and vacuumizing an arc test base 100, starting a test, gradually increasing the connection voltage of the moving contact rod 200 and the end part of the static terminal contact row 300, after the breakdown voltage of the insulation product is reached, sequentially connecting the current through the static terminal contact row 300, the electrode connecting contact 230, a counterweight contact rod 220, an electrode contact 212 and a resistance guide plate 242 to the electrode contact 212 at the other end, when the current passes through the resistance guide plate 242, converting most of the current into the internal energy of the resistance guide plate 242 by electric energy, heating the resistance guide plate 242 and a metal sodium block 245, heating and vaporizing the metal sodium block 245, pushing moving pistons 243 at two ends to slide and be in contact and communicated with the electrode contact 212, and then the current is completely communicated through the electrode contact 212, the moving electrode rod 244 and the piston rod cylinder 241, so that the current passing through the surface of the insulating product is instantly increased to generate a high-voltage arc, and the arc sensing observation of the insulating product and the end of the electrode connecting contact 230 can be conveniently obtained by observing in the arc testing base 100.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "fixed," and the like are used broadly and encompass, for example, a fixed connection, a removable connection, or an integral connection, and a connection may be a direct connection or an indirect connection via intermediate media. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be understood that when an element is referred to as being "mounted to," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (8)
1. Insulation test apparatus and accidental protection structure for insulation articles, comprising: an arc test base (100), a moving contact bar (200), a static terminal contact row (300) and a driving connection bar (400), the top surface of the arc test base (100) is fixedly provided with an arc observation transparent cover (110) and a mounting rack (120) positioned in the arc observation transparent cover (110), one end of the moving feeler lever (200) is hinged and fixed at the top end of the mounting rack (120), the driving connecting rod (400) is fixed on the top surface of the arc test base (100) and one end of the driving connecting rod is movably connected with the bottom surface of the moving contact rod (200), the static terminal contact row (300) and the mounting rack (120) are symmetrically arranged on the top surface of the arc test base (100), the inner part of the arc test base (100) is provided with a control terminal which is electrically connected with the moving contact rod (200) and the end part of the static terminal contact row (300), a display panel (130) is arranged on the surface of the arc test base (100);
the moving contact rod (200) comprises a large-current contact rod (210), a counterweight contact rod (220), an electrode connecting contact (230) and a large-current power connection assembly (240) which is positioned inside the large-current contact rod (210), wherein the large-current contact rod (210) is internally provided with an instantaneous power connection control cavity (211), the large-current contact rod (210) is of an insulating ceramic tube structure, electrode contacts (212) are fixedly installed at two ends of the instantaneous power connection control cavity (211), and a ceramic sheath is fixedly sleeved on the outer side of the counterweight contact rod (220);
heavy current connects electric subassembly (240) including piston rod section of thick bamboo (241), motion piston (243) and motion electrode pole (244), one side fixed mounting of piston rod section of thick bamboo (241) has resistance guide plate (242), the both ends and the electrode contact (212) electricity of resistance guide plate (242) are connected, one side fixed the pasting of resistance guide plate (242) is located the inside metal sodium piece (245) of piston rod section of thick bamboo (241).
2. The insulation test equipment and the accident protection structure for the insulation product according to claim 1, wherein the arc observation transparent cover (110) is a transparent glass cover structure, a vacuum pump is fixedly communicated with one side of the arc observation transparent cover (110), and the moving contact rod (200), the static terminal contact row (300) and the driving connecting rod (400) are hermetically wrapped by the arc observation transparent cover (110) to form a vacuum arc observation chamber structure.
3. The insulation test equipment and the accident protection structure for the insulation product according to claim 1, wherein the transient electric control chamber (211) is filled with sulfur hexafluoride gas, and the gas pressure is 0.4-0.7 MPa.
4. The insulation test equipment and the accident protection structure for the insulation product according to claim 1, wherein the moving electrode rods (244) are symmetrically distributed at two ends of the piston rod cylinder (241), the piston rod cylinder (241) is of a metal copper pipe structure, and the moving electrode rods (244) are arranged opposite to the electrode contacts (212) at the two ends.
5. The insulation testing equipment and the accident protection structure for the insulation product according to claim 1, wherein the moving piston (243) is symmetrically distributed on the inner wall of the piston rod cylinder (241) and is in sliding fit with the inner wall of the piston rod cylinder (241), and one end of the moving electrode rod (244) is fixedly connected with the surface of the moving piston (243).
6. The insulation test equipment and the accident protection structure for the insulation product according to claim 1, wherein the number of the moving contact rods (200) and the static terminal contact rows (300) is the same and corresponds to one another, the static terminal contact rows (300) are located on the movement path of the ends of the moving contact rods (200), and the ends of the moving contact rods (200) and the static terminal contact rows (300) are communicated through the electrodes of the insulation product.
7. The insulation test equipment and the accident protection structure for the insulation product according to claim 1, wherein the weight contact rod (220) is a high temperature ceramic material member, the weight contact rod (220) is fixedly sleeved outside the electrode connection contact (230), a connection point of the driving connection rod (400) and the moving contact rod (200) is located on a surface of the high current contact rod (210), and a center of gravity of the moving contact rod (200) is far away from the connection point of the driving connection rod (400) and the moving contact rod (200) and is biased toward one end of the weight contact rod (220).
8. The insulation test equipment and the accident protection structure for the insulation product according to claim 1, wherein the driving connection rod (400) is a pneumatic driving rod structure, the driving connection rod (400) is an insulation material member, and the bottom end of the driving connection rod (400) is movably connected with the surface of the arc test base (100).
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| CN115389887B (en) * | 2022-10-26 | 2022-12-30 | 张家港市华申工业橡塑制品有限公司 | Breakdown voltage and withstand voltage test system and test method for rubber product |
| CN117130352B (en) * | 2023-10-26 | 2024-01-30 | 深圳多为智联科技有限公司 | Electric vehicle controller testing device and testing method thereof |
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| CN102520328B (en) * | 2011-12-26 | 2014-02-05 | 大连理工大学 | Vacuum arc observation apparatus capable of being operated with adjustable speed |
| CN104576173A (en) * | 2014-12-24 | 2015-04-29 | 黑龙江宏宇电站设备有限公司 | AC high voltage protective device with vacuum arc-extinguishing chamber and protection method |
| CN106501710A (en) * | 2016-10-14 | 2017-03-15 | 南方电网科学研究院有限责任公司 | Switch arc experimental device suitable for multiple gas media |
| CN107144747B (en) * | 2017-05-18 | 2020-08-21 | 艾迪迪电气（苏州）有限公司 | Comprehensive test bench for arc fault protector |
| CN209542765U (en) * | 2018-12-18 | 2019-10-25 | 洛阳广通汽车有限公司 | A kind of insulation detection device |
| CN110308388A (en) * | 2019-06-26 | 2019-10-08 | 中国电力科学研究院有限公司 | It is a kind of for testing the device and test method of the electric property of GIS insulated pull rod |
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