CN215641412U - Arrester high-voltage test auxiliary device based on electric field optimization - Google Patents
Arrester high-voltage test auxiliary device based on electric field optimization Download PDFInfo
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- CN215641412U CN215641412U CN202122243949.2U CN202122243949U CN215641412U CN 215641412 U CN215641412 U CN 215641412U CN 202122243949 U CN202122243949 U CN 202122243949U CN 215641412 U CN215641412 U CN 215641412U
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- aluminum plate
- polyethylene
- electric field
- insulator spindle
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- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 230000005684 electric field Effects 0.000 title claims abstract description 21
- 238000005457 optimization Methods 0.000 title claims abstract description 15
- 239000004698 Polyethylene Substances 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 31
- 229920000573 polyethylene Polymers 0.000 claims abstract description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- -1 polyethylene Polymers 0.000 claims abstract description 29
- 239000012212 insulator Substances 0.000 claims description 17
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 125000003003 spiro group Chemical group 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007935 neutral effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an arrester high-voltage test auxiliary device based on electric field optimization in the technical field of insulating shielding safety appliances, which comprises a polyethylene plate and an aluminum plate, wherein the polyethylene plate and the aluminum plate are mutually attached, a polyethylene binding post is fixedly connected onto the aluminum plate, the bottom of the polyethylene binding post is connected with an insulating rod with adjustable length, the lower end of the outer wall of the insulating rod is fixedly connected with an installation frame through a buckle, and the aluminum plate is in conduction connection with a wire.
Description
Technical Field
The utility model relates to an insulating shielding safety appliance, in particular to an arrester high-voltage test auxiliary device based on electric field optimization.
Background
In long-term operation, the lightning arrester often causes short circuit due to aging, moisture and the like, and insulation damage is caused. Therefore, the neutral point arrester of the transformer is periodically subjected to a direct current leakage test to check whether the arrester has an insulation defect. When developing the direct current and revealing the experiment, in order to avoid the breakdown with the parallelly connected discharge gap of transformer neutral point arrester, need operating personnel to ascend a height and demolish the equipment lead wire. When the lightning arrester on the 220kV transformer is subjected to a direct current leakage test, a voltage of 211kV needs to be applied, and when the lightning arrester of 110kV is subjected to the direct current leakage test, the voltage needs to be applied to be about 113 kV. According to the standard, the gap distance of the neutral point of the transformer is related to the grade of the transformer, the discharge gap of the neutral point of the 220kV transformer is generally 28cm, and the discharge gap of the neutral point of the 110kV transformer is 13 cm. When a dc leakage test is performed, the discharge gap is broken down because the breakdown field strength of the rod-rod air gap is much smaller than the applied test voltage.
In order to avoid the gap from being broken down, the current methods adopted in the test field mainly include the following two methods: firstly, dismantling a lead or a discharge gap of the lightning arrester, and then directly pressurizing the lightning arrester; secondly, an insulating barrier is additionally arranged on the rod electrode of the discharge gap, and the lightning arrester is pressurized after the insulating barrier is commonly provided with insulating gloves and the like. Both of the above methods require an operator to work at an elevated height. Because the arrester has certain height usually liftoff, and the position is narrow and small on the arrester foundation structure, and operating personnel no matter stand or hang the safety belt and all have certain degree of difficulty and danger coefficient. In the whole test process of the lightning arrester, an operator needs to ascend twice at least and respectively remove and restore the device. Therefore, the existing treatment method has the problems of complicated operation steps, safety hazard of operators and the like.
In order to reduce discharge of a discharge gap, avoid the gap from being broken down and realize that test work can be carried out without ascending a height, the utility model provides a main transformer neutral point arrester high-voltage test auxiliary device based on electric field distribution optimization and provided with an insulating rod. The device can be used for effectively optimizing the electric field distribution of the discharge gap, simultaneously effectively guaranteeing the safety of operators and equipment due to no need of ascending operation, improving the test efficiency and having wide application prospect in an electric power system.
Based on the technical scheme, the utility model designs the arrester high-voltage test auxiliary device based on electric field optimization to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an arrester high-voltage testing auxiliary device based on electric field optimization to solve above-mentioned technical problem.
In order to realize the purpose, the utility model provides the following technical scheme: the utility model provides a lightning arrester high-voltage testing auxiliary device based on electric field optimization, is including the polyethylene board and the aluminum plate that laminate the setting each other, fixedly connected with polyethylene terminal on the aluminum plate, polyethylene terminal bottom is connected with length adjustable insulator spindle, the outer wall lower extreme of insulator spindle passes through buckle fixedly connected with mounting bracket, the last turn-on connection of aluminum plate has the wire.
Preferably, a terminal channel is formed in an inner cavity of the polyethylene terminal, an insulating rod channel is formed in an inner cavity of the insulating rod, the upper end of the insulating rod channel is communicated with the terminal channel, and a conducting end of the wire sequentially passes through the terminal channel and the insulating rod channel and extends to the lower end of the insulating rod.
Preferably, the insulating rod is formed by connecting multiple sections of hollow pipes, and two adjacent sections of hollow pipes are connected through threads.
Preferably, the mounting bracket includes the frame of falling the U-shaped, the outer wall lower extreme of insulator spindle is fixed in the outer wall of frame one side of falling the U-shaped through the buckle, the screw joint is run through to the frame opposite side outer wall of falling the U-shaped has fastening screw, fastening screw stretches into the frame inner chamber one end of falling the U-shaped is connected with the butt joint board.
Preferably, the polyethylene plate and the aluminum plate are circular plates, and the central axis of the insulating rod is intersected with and perpendicular to the central axes of the polyethylene plate and the aluminum plate.
Compared with the prior art, utility model's beneficial effect does:
the lightning arrester high-voltage test auxiliary device based on electric field optimization is characterized in that a composite plate aluminum plate and a polyethylene plate which optimize electric field distribution are arranged at a discharge electrode on the side of a lightning arrester, the aluminum plate is connected with the side of the lightning arrester to improve the electric field distribution, the polyethylene plate is used for bearing a high electric field, the length of an insulating rod and the width of a mounting opening are adjustable, and the requirements of on-site actual operation are met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the mounting bracket of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
the novel plastic cable comprises a 1-polyethylene plate, a 2-aluminum plate, a 3-polyethylene binding post, a 31-binding post channel, a 4-insulating rod, a 41-insulating rod channel, a 5-conducting wire, a 6-mounting frame, a 61-inverted U-shaped frame, a 62-fastening screw, a 63-abutting plate and a 7-buckle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-2, the utility model provides a technical solution: an arrester high-voltage test auxiliary device based on electric field optimization comprises a polyethylene plate 1 and an aluminum plate 2 which are mutually attached, wherein the diameter of the polyethylene plate 1 is 200-350 mm, the thickness of the polyethylene plate is 3-6 mm, and the aluminum plate 2 changes along with the change of the polyethylene plate and is 3 mm; the aluminum plate 2 is fixedly connected with a polyethylene binding post 3, the bottom of the polyethylene binding post 3 is connected with an insulating rod 4 with adjustable length, the insulating rod 4 is formed by connecting a plurality of sections of hollow pipes, the adjacent two sections of hollow pipes are connected through threads, when the aluminum plate is used, the hollow pipes with different lengths can be formed by selecting the hollow pipes without the number of hollow pipes connected end to end according to the required installation height, and the hollow pipes are connected through threads, so that the aluminum plate is more favorable for quick disassembly; the lower end of the outer wall of the insulating rod 4 is fixedly connected with a mounting frame 6 through a buckle 7, the mounting frame 6 comprises an inverted U-shaped frame 61, the lower end of the outer wall of the insulating rod 4 is fixed on the outer wall of one side of the inverted U-shaped frame 61 through the buckle 7, a fastening screw 62 penetrates through the outer wall of the other side of the inverted U-shaped frame 61, one end, extending into the inner cavity of the inverted U-shaped frame 61, of the fastening screw 62 is connected with a butt plate 63, during installation, the outer side end of the fastening screw 62 is screwed to push the butt plate 63, so that the distance between the butt plate 63 and the inner cavity wall of the other side of the inverted U-shaped frame 61 is reduced, the lightning arrester base framework 10 with different thicknesses is clamped, the aluminum plate 2 is conductively connected with a lead 5, the polyethylene plate 1 and the aluminum plate 2 are circular plates, the central axis of the insulating rod 4 is intersected and perpendicular to the central axes of the polyethylene plate 1 and the aluminum plate 2, and the polyethylene plate 1 and the aluminum plate 2 are over against a discharge gap 8 after the insulating rod 4 is vertically installed, discharge gap 8 is parallelly connected with arrester 9, let aluminum plate 2 and discharge gap 8's electrode contact, terminal passageway 31 has been seted up to 3 inner chambers of polyethylene terminal, insulator spindle passageway 41 has been seted up to 4 inner chambers of insulator spindle, the upper end and the terminal passageway 31 intercommunication of insulator spindle passageway 41, 5 circular telegram ends of wire loop through terminal passageway 31 and insulator spindle passageway 41 and extend to 4 lower extremes of insulator spindle and connect DC power supply 11, form built-in the line of walking, more be favorable to protecting wire 5 and promote whole pleasing to the eye wholeness.
Working principle embodiment:
the connection is carried out as shown in figure 1, the discharge gap 8 is connected with the lightning arrester 9 in parallel, the aluminum plate 2 is supported and fixed by the insulating rod 5 which can be connected in multiple sections, the discharge end of the discharge gap 8 is connected with the aluminum plate, and the aluminum plate is fixedly arranged on the foundation of the lightning arrester through the mounting frame 6, so that the aluminum plate is reliably fixed. And the lightning arrester direct current leakage test can be realized by connecting the lead 5 with the direct current power supply 11. The discharge gap is not broken down because the polyethylene sheet 1 has a higher breakdown field strength than air and it is subjected to a high electric field in the gap. The device optimizes the electric field distribution in the main transformer neutral point arrester discharge gap effectively, reduces the gap electrode discharge and avoids the gap from being punctured. Meanwhile, due to the design of the insulating rod of the device, the ascending operation of operators is avoided, the safety of the operators and equipment is ensured, and the test efficiency is also improved.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a lightning arrester high-voltage test auxiliary device based on electric field optimization which characterized in that: polyethylene board (1) and aluminum plate (2) including laminating the setting each other, fixedly connected with polyethylene terminal (3) on aluminum plate (2), polyethylene terminal (3) bottom is connected with length adjustable insulator spindle (4), buckle (7) fixedly connected with mounting bracket (6) are passed through to the outer wall lower extreme of insulator spindle (4), on aluminum plate (2) turn-on connection has wire (5).
2. The arrester high-voltage test auxiliary device based on electric field optimization of claim 1 is characterized in that: terminal passageway (31) have been seted up to polyethylene terminal (3) inner chamber, insulator spindle passageway (41) have been seted up to insulator spindle (4) inner chamber, the upper end of insulator spindle passageway (41) with terminal passageway (31) intercommunication, wire (5) circular telegram end loops through terminal passageway (31) and insulator spindle passageway (41) and extends to insulator spindle (4) lower extreme.
3. The arrester high-voltage test auxiliary device based on electric field optimization of claim 1 is characterized in that: the insulating rod (4) is formed by connecting multiple sections of hollow pipes, and two adjacent sections of hollow pipes are connected through threads.
4. The arrester high-voltage test auxiliary device based on electric field optimization of claim 1 is characterized in that: mounting bracket (6) are including falling U-shaped frame (61), the outer wall lower extreme of insulator spindle (4) is fixed in the outer wall of falling U-shaped frame (61) one side through buckle (7), the spiro union has fastening screw (62) to run through the opposite side outer wall of falling U-shaped frame (61), fastening screw (62) stretch into it is connected with butt joint board (63) to fall U-shaped frame (61) inner chamber one end.
5. The arrester high-voltage test auxiliary device based on electric field optimization of claim 1 is characterized in that: polyethylene board (1) and aluminum plate (2) are circular plate, the central axis of insulator spindle (4) with the central axis of polyethylene board (1) and aluminum plate (2) is crossing and perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122243949.2U CN215641412U (en) | 2021-09-16 | 2021-09-16 | Arrester high-voltage test auxiliary device based on electric field optimization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122243949.2U CN215641412U (en) | 2021-09-16 | 2021-09-16 | Arrester high-voltage test auxiliary device based on electric field optimization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215641412U true CN215641412U (en) | 2022-01-25 |
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ID=79916659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122243949.2U Active CN215641412U (en) | 2021-09-16 | 2021-09-16 | Arrester high-voltage test auxiliary device based on electric field optimization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215641412U (en) |
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2021
- 2021-09-16 CN CN202122243949.2U patent/CN215641412U/en active Active
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