CN218782362U - Electrode test device for insulator - Google Patents
Electrode test device for insulator Download PDFInfo
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- CN218782362U CN218782362U CN202222852970.7U CN202222852970U CN218782362U CN 218782362 U CN218782362 U CN 218782362U CN 202222852970 U CN202222852970 U CN 202222852970U CN 218782362 U CN218782362 U CN 218782362U
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Abstract
The utility model discloses an electrode test device for insulator, including the insulator, the both sides of insulator are connected with upper electrode and bottom electrode respectively, and upper electrode and bottom electrode are installed on fixed establishment and fixed establishment is used for adjusting the interval of upper electrode and bottom electrode, upper electrode and bottom electrode and oscilloscope communication connection. The utility model discloses, through last electrode and bottom electrode centre gripping insulator and applys voltage simulation engineering actual conditions, make the test data more have the referential meaning.
Description
Technical Field
The utility model relates to an insulator detection area, concretely relates to an electrode test device for insulator.
Background
An insulator is a device that can withstand the action of voltage and mechanical stress, mounted between conductors of different electrical potentials or between a conductor and a grounded member. Insulators are various in types and shapes. Although the structures and the shapes of different types of insulators are greatly different, the insulators are composed of two parts, namely an insulating part and a connecting hardware fitting.
The insulator is a special insulating control and plays an important role in overhead transmission lines. Early-age insulators are mostly used for telegraph poles, and a plurality of disc-shaped insulators are hung at one end of a high-voltage wire connecting tower which is gradually developed, are used for increasing creepage distance and are usually made of glass or ceramics. The main function of the insulator is to achieve electrical insulation and mechanical fixation, for which various electrical and mechanical properties are specified. Under the action of specified operating voltage, lightning overvoltage and internal overvoltage, breakdown or flashover along the surface does not occur; under the action of specified long-term and short-term mechanical load, no damage and damage are generated; no obvious deterioration after long-term operation under the specified mechanical and electrical loads and various environmental conditions; the insulator hardware does not generate obvious corona discharge phenomenon under the running voltage so as to avoid the interference on the reception of radio or television. Since the insulator is a device used in large numbers, interchangeability is also required for its link fitting. For example, when a flashover voltage test is performed by using a pulse power device, in order to simulate the actual conditions of engineering, test data can have reference significance, an insulator needs to be subjected to an impact test to detect the flashover voltage of the insulator, and the existing test equipment has poor compatibility and is inconvenient to detect insulators of various types.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the problem that engineering actual conditions need to be simulated at present so that test data have reference significance, the electrode test device for the insulator is provided, the engineering actual conditions can be simulated, and the test data have reference significance.
The technical scheme of the utility model as follows: the device comprises an insulator, wherein an upper electrode and a lower electrode are connected to two sides of the insulator respectively, the upper electrode and the lower electrode are mounted on a fixing mechanism, the fixing mechanism is used for adjusting the distance between the upper electrode and the lower electrode, the upper electrode and the lower electrode are in communication connection with an oscilloscope, and the insulator is clamped by the upper electrode and the lower end and voltage is applied to simulate the actual situation of an engineering, so that test data have reference significance.
Furthermore, the present solution does not only limit the specific structure of the fixing mechanism, and one possible solution is: the fixing mechanism comprises an upper cover plate and a lower cover plate, the upper electrode is installed on the upper cover plate, the lower electrode is installed on the lower cover plate, the upper cover plate is connected with the lower cover plate through a fastening piece, and the distance between the upper cover plate and the lower cover plate is adjusted through the fastening piece, so that the distance between the upper electrode and the lower electrode is changed, insulators of different models are clamped, and the insulator clamping device has better compatibility.
Preferably, the upper cover plate and the lower cover plate are both made of epoxy resin, and the epoxy resin has many unique advantages of excellent physical mechanical and electrical insulation performance, adhesion performance with various materials, high insulation performance, large structural strength, good sealing performance and the like, and is widely applied to insulation and packaging of high and low voltage electric appliances, motors and electronic components.
Furthermore, the present solution is not limited to the specific structure of the upper electrode and the lower electrode, and one possible solution is: the upper electrode and the lower electrode both comprise a conductive plate and the conductive plate are arranged in parallel, the conductive plate is used for fixing the insulator, and specifically, the conductive plate is processed by stainless steel and polishes the surface of the conductive plate.
Furthermore, in order to limit the conductive plate, one possible solution is: the current-conducting plate is connected with the guide post and the guide post penetrates through the upper cover plate or the lower cover plate, specifically, the guide post of the upper electrode penetrates through the upper cover plate, the guide post of the lower electrode penetrates through the lower cover plate, and the current-conducting plate and the guide post synchronously move along the axis direction of the guide post; in some other schemes, the current-conducting plate is installed on the upper cover plate or the lower cover plate through a screw, specifically, the upper electrode is installed on the upper cover plate, and the lower electrode is installed on the lower cover plate, and the above schemes can realize that the current-conducting plate does not displace after clamping the insulator.
Furthermore, in order to make the upper cover plate and the lower cover plate have interchangeability, the upper cover plate and the lower cover plate are both square or round, and can be conveniently and quickly disassembled and replaced when the upper cover plate or the lower cover plate needs to be replaced.
Still further, the fastener includes fixing bolts and the fixing bolts are distributed along the circumference of the upper cover plate.
Preferably, the fixing bolt is made of epoxy resin, and the epoxy resin has many unique advantages of excellent physical mechanical and electrical insulation performance, good adhesion performance with various materials, high insulation performance, large structural strength, good sealing performance and the like, and is widely applied to insulation and packaging of high and low voltage electric appliances, motors and electronic components.
Furthermore, the insulator is provided with an adjusting block for changing the flashover path of the insulator, the adjusting block and the insulator are combined into the insulating part, the appearance of the insulating part is changed by installing the adjusting blocks with different shapes, so that the flashover path is changed, and the relation between the shape of the insulating part and the flashover voltage is researched.
Furthermore, the size of the cover plate is phi 200 +/-10 mm, the size of the conductive plate is phi 90 +/-10 mm, and the size is taken as one of the preferable ranges and can clamp most types of insulators.
Compared with the prior art, the beneficial effects of the utility model are that:
the insulator is clamped by the upper electrode and the lower electrode, and the voltage is applied to simulate the actual condition of the engineering, so that the test data has reference significance.
Drawings
Fig. 1 is a sectional view of the present invention.
Reference numerals:
1. an upper electrode; 101. a conductive plate; 102. a guide post; 2. a lower electrode; 3. an insulator; 301. an adjusting block; 4. a fixing mechanism; 401. an upper cover plate; 402. a lower cover plate; 403. a fastener.
Detailed Description
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention will be described in further detail with reference to the following examples.
Referring to fig. 1, the test device comprises an insulator 3, wherein an upper electrode 1 and a lower electrode 2 are respectively connected to two sides of the insulator 3, the upper electrode 1 and the lower electrode 2 are mounted on a fixing mechanism 4, the fixing mechanism 4 is used for adjusting the distance between the upper electrode 1 and the lower electrode 2, the upper electrode 1 and the lower electrode 2 are in communication connection with an oscilloscope, the insulator 3 is clamped by the upper electrode 1 and the lower electrode 2, and voltage is applied to simulate the actual engineering condition, so that the test data have reference significance;
the present solution does not only limit the specific structure of the fixing mechanism 4, and one possible solution is: the fixing mechanism 4 comprises an upper cover plate 401 and a lower cover plate 402, the upper electrode 1 is installed on the upper cover plate 401, the lower electrode 2 is installed on the lower cover plate 402, the upper cover plate 401 is connected with the lower cover plate 402 through a fastener 403, and the distance between the upper cover plate 401 and the lower cover plate 402 is adjusted through the fastener, so that the distance between the upper electrode 1 and the lower electrode 2 is changed, insulators 3 of different types are clamped, and the better compatibility is achieved.
Preferably, the upper cover plate 401 and the lower cover plate 402 are both made of epoxy resin, and the epoxy resin has many unique advantages of excellent physical mechanical and electrical insulation performance, adhesion performance with various materials, high insulation performance, large structural strength, good sealing performance and the like, and is widely applied to insulation and packaging of high and low voltage electric appliances, motors and electronic components.
The present solution is not limited to the specific structure of the upper electrode 1 and the lower electrode 2, and one possible solution is: the upper electrode 1 and the lower electrode 2 each include a conductive plate 101 and the conductive plates 101 are arranged in parallel with each other, the conductive plates 101 are used to fix the insulator 3, and specifically, the conductive plates 101 are machined from stainless steel and polish the surfaces of the conductive plates 101.
In order to limit the conductive plate 101, one possible solution is: the conductive plate 101 is connected with the guide post 102 and the guide post 102 penetrates the upper cover plate 401 or the lower cover plate 402, specifically, the guide post 102 of the upper electrode 1 penetrates the upper cover plate 401, the guide post 102 of the lower electrode 2 penetrates the lower cover plate 402, and the conductive plate 101 and the guide post 102 move synchronously along the axial direction of the guide post 102; in other embodiments, the conductive plate 101 is mounted on the upper cover plate 401 or the lower cover plate 402 by screws, specifically, the upper electrode 1 is mounted on the upper cover plate 401, and the lower electrode 2 is mounted on the lower cover plate 402, which all can achieve that the conductive plate does not displace after clamping the insulator, specifically, in this embodiment, the guide pillar 102 penetrates through the geometric center of the upper cover plate 401 or the lower cover plate 402, and the guide pillar 102 and the conductive plate 101 form a moving part.
In order to make the upper cover plate 401 and the lower cover plate 402 interchangeable, the upper cover plate 401 and the lower cover plate 402 are both square or round, and when the upper cover plate 401 or the lower cover plate 402 needs to be replaced, they can be conveniently and quickly detached and replaced, specifically, the upper cover plate 401 and the lower cover plate 402 are both round in this embodiment.
The fastening members 403 include fixing bolts distributed along the circumference of the upper cover plate 401, and specifically, four sets of fixing bolts are used in the present embodiment.
Preferably, the length of the guide post 102 is greater than or equal to the length of the fixing bolt, so that the moving part can be prevented from falling off from the fixing mechanism 4 after the insulator 3 is disassembled, and the parts can be cleaned conveniently and quickly due to the mobility of the moving part.
Preferably, the fixing bolt is made of epoxy resin, and the epoxy resin has many unique advantages of excellent physical mechanical and electrical insulation performance, good adhesion performance with various materials, high insulation performance, large structural strength, good sealing performance and the like, and is widely applied to insulation and packaging of high and low voltage electric appliances, motors and electronic components.
The insulator 3 is provided with an adjusting block 301 for changing a flashover path of the insulator 3, the adjusting block 301 and the insulator 3 form an insulating part, the appearance of the insulating part is changed by installing the adjusting block 301 with different shapes, so that the flashover path is changed, and the relation between the shape of the insulating part and the flashover voltage is studied.
The dimensions of the upper cover plate 401 and the lower cover plate 402 are Φ 200 ± 10mm, the dimensions of the conductive plates 101 are Φ 90 ± 10mm, and these dimensions are a preferable range, and can hold most types of insulators 3.
The measurement method of the present embodiment:
the insulator 3 is mounted between the upper electrode 1 and the lower electrode 2, and the impact test is performed by adjusting the fasteners 403 so that the conductive plates 101 sandwich both ends of the insulator 3.
Because the peak value of the output voltage in the impact test is up to more than 100kV, and the measuring range of the high-voltage probe is limited, the waveform of the impact voltage is measured by using the impact voltage divider, in the embodiment, the voltage divider with the voltage division ratio of 1200 is adopted, and the voltage value led out from the voltage divider is still larger, so the voltage is connected into an oscilloscope after passing through two attenuators of 40 dB.
In the test, a dual-channel oscilloscope is adopted for measurement, the two channels respectively measure the voltage of the sample before and after the gap, the waveform change after the flashover is compared, if the voltage of the two channels is the same and the waveform of the two channels is the same, if the flashover occurs, the voltage of an acquisition channel of the oscilloscope loaded on the sample is obviously reduced, and the other channel is basically kept unchanged.
Compared with the prior art, the beneficial effects of this embodiment are:
the insulator 3 is clamped by the upper electrode 1 and the lower electrode 2, and the voltage is applied to simulate the actual conditions of engineering, so that the test data have reference significance, and the distance between the upper cover plate 401 and the lower cover plate 402 is adjusted by the fastener 403, so that the distance between the upper electrode 1 and the lower electrode 2 is changed, the insulators 3 of different types are clamped, and the compatibility is better; because the upper cover plate 401, the lower cover plate 402 and the fastener 403 are all made of epoxy resin, the defect that the traditional metal material is easy to rust is avoided; the guide post 102 and the conductive plate 101 form a moving part, and the moving part can move relative to the upper cover plate 401 or the lower cover plate 402 along the axial direction of the guide post 102.
The above examples only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (7)
1. The utility model provides an electrode test device for insulator, includes insulator (3), its characterized in that, the both sides of insulator (3) are connected with upper electrode (1) and bottom electrode (2) respectively, upper electrode (1) and bottom electrode (2) are installed on fixed establishment (4) and fixed establishment (4) are used for adjusting the interval of upper electrode (1) and bottom electrode (2), upper electrode (1) and bottom electrode (2) all with oscilloscope communication connection.
2. The electrode testing device for the insulator according to the claim 1 is characterized in that the fixing mechanism (4) comprises an upper cover plate (401) and a lower cover plate (402), the upper electrode (1) is installed on the upper cover plate (401), the lower electrode (2) is installed on the lower cover plate (402), and the upper cover plate (401) and the lower cover plate (402) are connected through a fastener (403).
3. The electrode testing apparatus for insulators according to claim 2, wherein the upper electrode (1) and the lower electrode (2) each include a conductive plate (101) and the conductive plates (101) are arranged in parallel with each other, and the conductive plates (101) are used for fixing the insulator (3).
4. The electrode testing apparatus for an insulator according to claim 3, wherein the conductive plate (101) is connected to a guide post (102) and the guide post (102) penetrates the upper cover plate (401) or the lower cover plate (402).
5. The electrode testing device for the insulator according to claim 2, wherein the upper cover plate (401) and the lower cover plate (402) are square or circular.
6. The electrode testing device for the insulator according to claim 2 or 5, wherein the fastening member (403) comprises a fixing bolt and the fixing bolt is distributed along the circumference of the upper cover plate (401).
7. The electrode testing device for the insulator according to claim 1, characterized in that an adjusting block (301) for changing a flashover path of the insulator (3) is installed on the insulator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222852970.7U CN218782362U (en) | 2022-10-27 | 2022-10-27 | Electrode test device for insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222852970.7U CN218782362U (en) | 2022-10-27 | 2022-10-27 | Electrode test device for insulator |
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| Publication Number | Publication Date |
|---|---|
| CN218782362U true CN218782362U (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222852970.7U Active CN218782362U (en) | 2022-10-27 | 2022-10-27 | Electrode test device for insulator |
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| CN (1) | CN218782362U (en) |
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2022
- 2022-10-27 CN CN202222852970.7U patent/CN218782362U/en active Active
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