CN212321765U - Distribution lines insulated conductor rainwater is to experimental testing arrangement of discharge influence - Google Patents
Distribution lines insulated conductor rainwater is to experimental testing arrangement of discharge influence Download PDFInfo
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- CN212321765U CN212321765U CN201921550900.8U CN201921550900U CN212321765U CN 212321765 U CN212321765 U CN 212321765U CN 201921550900 U CN201921550900 U CN 201921550900U CN 212321765 U CN212321765 U CN 212321765U
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- resistor
- horn
- rainwater
- measuring instrument
- wire
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- 239000004020 conductor Substances 0.000 title claims abstract description 22
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 9
- 239000012188 paraffin wax Substances 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Testing Relating To Insulation (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model belongs to the technical field of the power equipment is experimental, especially, relate to distribution lines insulated conductor rainwater is to experimental testing arrangement of discharge influence. An insulated wire passes through a horn, and paraffin is arranged in the horn; one end of the horn is wound and connected through a binding wire; the insulated wire at the other end of the horn is respectively connected with the first protective resistor and the second protective resistor; the other end of the first protection resistor is connected with the impact generator; the other end of the second protection resistor is connected with a volt-ampere meter or a voltage measuring instrument, and the other end of the volt-ampere meter or the voltage measuring instrument is connected with the second resistor; the other end of the second resistor is connected with an impact generator, and the impact generator and the voltage measuring instrument form a parallel loop and are grounded; an insulated wire at one end of the horn is grounded with a series loop of the first resistor and the capacitor; the binding wire is connected with a volt-ampere meter or a current measuring instrument, and the other end of the volt-ampere meter or the current measuring instrument is connected with a third resistor in series and is grounded. The utility model has the characteristics of simple structure has the cost of manufacture low, is convenient for observe.
Description
Technical Field
The utility model belongs to the technical field of the power equipment is experimental, especially, relate to a distribution lines insulated conductor rainwater is to experimental testing arrangement of discharge influence.
Background
At present, insulated wires used for distribution lines are mainly fixed with binding wires through insulators. The insulation system here consists of a wire, a wire insulation, an insulator and a binding wire. When the first line is struck by lightning, flashover of the insulator can be caused. At this time, the creeping discharge generated by the flashover will extend to the surface of the insulated wire along the binding wire, and affect the insulated wire. In addition, in daily operation, due to factors such as natural environment and insulation aging, the surface of the insulated wire is also affected, and weak points are generated on the surface of the insulated wire, so that in severe weather, such as rainy days, leakage current generated from the weak points of the insulation extends to the insulator along with rainwater, and the insulation system at the position is affected even single-phase grounding is caused for a long time. Therefore, it is necessary to grasp the influence of rainwater on the discharge of the insulated wire.
Disclosure of Invention
To the problem that exists among the above-mentioned prior art, the utility model provides a distribution lines insulated conductor rainwater is to experimental testing arrangement of influence that discharges, and its purpose is in order to provide a simple structure, and it is low to have the cost of manufacture to and be convenient for observe, can realize developing rainwater or raindrop in the laboratory and discharge the influence experiment to insulated conductor, master its mechanism of discharging, and be favorable to summarizing the testing arrangement of safeguard measure.
In order to realize the purpose of the utility model, the utility model discloses a realize through following technical scheme:
the distribution line insulated wire rainwater influence on discharge test device comprises a loudspeaker, wherein the insulated wire passes through the loudspeaker, and paraffin is arranged in a space in the loudspeaker; the small opening side of one end of the horn is wound by a binding wire, so that the insulation measuring lead is connected with the horn; the insulated wires at the large opening side of the horn are respectively connected with the first protective resistor and the second protective resistor; the other end of the first protection resistor is connected with the impact generator; the other end of the second protection resistor is connected with a volt-ampere meter or a voltage measuring instrument through a lead, and the other end of the volt-ampere meter or the voltage measuring instrument is connected with the second resistor; the other end of the second resistor is connected with the impulse generator through a lead, so that the impulse generator and the voltage measuring instrument form a parallel loop and are grounded; the insulated wire at the small opening side of the horn is connected with a first resistor, and the other end of the first resistor is grounded with a capacitor series circuit; the binding wire is connected with a volt-ampere meter or a current measuring instrument, and the other end of the volt-ampere meter or the current measuring instrument is connected with a third resistor in series and is grounded.
The horn is a copper horn.
The small opening at one end of the horn is slightly larger than the diameter of the insulated wire, so that the insulated wire just penetrates through the small opening of the horn.
The value range of the first protection resistor is any value between 100 and 200 ohms; the value range of the second protection resistor is any value between 10k and 20k ohms; the value range of the second resistance is any value between 50 and 100 ohms; the value range of the first resistor is any value between 1k and 2k ohms; the value range of the capacitor can be any value between 500 and 800 pF.
The first protection resistance takes 100 ohms; the second protection resistance takes 10k ohm; the second resistance takes 50 ohms; the first resistance takes a value of 1k ohm; the capacitance takes the value of 500 pF.
The binding wire is an aluminum binding wire and can also be a copper binding wire.
The binding wire is wound on the small opening side of one end of the horn, has different winding forms, and can be wound into various shapes including a spiral shape and a cross superposition shape.
The horn can also be made of aluminum material.
The utility model has the advantages and beneficial effects that:
the device of the utility model has the characteristics of simple structure, it is low to have the cost of manufacture to and be convenient for survey. Can realize that laboratory small-scale distribution lines insulated wire rainwater is experimental to the influence of discharging, the utility model discloses can master the distribution lines insulated wire rainwater to the experimental mechanism of discharging of influence of discharging, be favorable to summarizing to the better safeguard measure that carries on.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, but it should be understood that the scope of the present invention is not limited by the specific embodiments. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic diagram of the circuit connection of the present invention.
In the figure: the device comprises an insulated wire 1, a loudspeaker 2, paraffin 3, a binding wire 4, a first protective resistor 5, a second protective resistor 6, a first resistor 7, a second resistor 8, a capacitor 9, a voltage measuring instrument 10, a current measuring instrument 11, an impulse generator 12, a high-speed camera 13 and a third resistor 14.
Detailed Description
The utility model discloses a distribution lines insulated conductor rainwater is to the experimental testing arrangement of discharge influence, as shown in figure 1, figure 1 is the utility model discloses the circuit connection schematic diagram.
Example 1:
the utility model discloses distribution lines insulated wire rainwater is to experimental testing arrangement of influence that discharges, including copper loudspeaker 2, the diameter of the little opening of loudspeaker 2 one end than insulated wire 1 is slightly big, satisfies insulated wire 1 and just in time passes loudspeaker 2's osculum. The insulated wire 1 penetrates through the horn 2 and then penetrates out from the large opening at the other end of the horn 2, and paraffin 3 is arranged in the space in the horn 2. The small opening side of one end of the horn 2 is wound by the binding wire 4, so that the insulation measuring lead 1 is fixedly connected with the horn 2.
The conductor wire core exposed at the other end of the insulated wire 1 at the large opening side of the horn 2 is respectively connected with a first protective resistor 5 and a second protective resistor 6 through wires; the other end of the first protective resistor 5 is connected with the impulse generator 12 through a lead; the other end of the second protection resistor 6 is connected with a volt-ampere meter or a voltage measuring instrument 10 through a lead, and the other end of the volt-ampere meter or the voltage measuring instrument 10 is connected with a second resistor 8 through a lead; the other end of the second resistor 8 is connected with the impulse generator 12 through a lead, so that the impulse generator 12 and the voltage measuring instrument 10 form a parallel loop and are grounded.
The conductor core of the insulated conductor 1 on the small opening side of the horn 2 is connected with a first resistor 7 through a conductor, the other end of the first resistor 7 is connected with a capacitor 9 in series through a conductor, and the loop is grounded.
The value range of the first protection resistor 5 can be any value between 100 and 200 ohms.
The value range of the second protection resistor 6 can be any value between 10k and 20k ohms.
The value range of the second resistor 8 can be any value between 50 and 100 ohms.
The value range of the first resistor 7 can be any value between 1k ohm and 2k ohm.
The value of the capacitor 9 can be any value between 500 and 800 pF.
The binding wire 4 is connected with a volt-ampere meter or a current measuring instrument 11, and the other end of the volt-ampere meter or the current measuring instrument 11 is connected with a third resistor 14 in series and is grounded.
The binding wire 4 is made of aluminum or copper.
The binding wire 4 is wound around the small opening side of one end of the horn 2, and the winding forms are different, and the binding wire can be wound into various shapes, including a spiral shape, a cross-superposition shape and the like.
Utilize the utility model relates to a distribution lines insulated conductor rainwater is experimental to the experimental testing arrangement of influence that discharges when experimental, and its process includes following step:
firstly, a copper horn 2 is manufactured, and the small opening of the horn 2 is slightly larger than the diameter of the insulated wire 1, so that the insulated wire 1 can just penetrate through the small opening of the horn 2. After passing through the horn 2, the insulated wire 1 to be tested is filled and fixed from the large opening of the horn 2 by the reusable paraffin 3. The aluminum wire is wound on the small opening side of the horn 2 as the binding wire 4, and the aluminum binding wire 4 can be wound in different winding forms to take into account the influence of different shapes on the discharge. The lead wires at the large opening side of the horn 2, with the conductor wire cores exposed at the two sides of the insulated lead wire 1, are connected with an impulse generator 12 through a first protection resistor 5 of 100 ohms, and are connected with a volt-ampere meter or a voltage measuring instrument 10 and a second resistor 8 of 50 ohms through a second protection resistor 6 of 10k ohms or more, and the impulse generator 12 and the voltage measuring instrument 10 form a parallel loop and are grounded. The insulated conductor 1 on the small opening side of the horn 2 is connected in series with a first resistor 7 of 1k ohms and a capacitor 9 of 500pF and is connected to ground.
In addition, the aluminum binding wire 4 is connected in series with a voltammeter or current meter 11 and a second resistor 8 and grounded for testing leakage current.
A high-speed camera 13 is used for aiming at the small-opening-side part of the insulated wire 1 of the horn 2, and water is sprayed to the device in a raindrop-like manner so as to observe the discharge condition of the insulated wire 1 in rain.
Example 2:
the horn 2 of the present invention may be made of aluminum material.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. Distribution lines insulated wire rainwater is to experimental testing arrangement of discharge influence, characterized by: comprises a loudspeaker, wherein an insulated wire penetrates through the loudspeaker, and paraffin is arranged in the space in the loudspeaker; the small opening side of one end of the horn is wound by a binding wire, so that the insulation measuring lead is connected with the horn; the insulated wires at the large opening side of the horn are respectively connected with the first protective resistor and the second protective resistor; the other end of the first protection resistor is connected with the impact generator; the other end of the second protection resistor is connected with a volt-ampere meter or a voltage measuring instrument through a lead, and the other end of the volt-ampere meter or the voltage measuring instrument is connected with the second resistor; the other end of the second resistor is connected with the impulse generator through a lead, so that the impulse generator and the voltage measuring instrument form a parallel loop and are grounded; the insulated wire at the small opening side of the horn is connected with a first resistor, and the other end of the first resistor is grounded with a capacitor series circuit; the binding wire is connected with a volt-ampere meter or a current measuring instrument, and the other end of the volt-ampere meter or the current measuring instrument is connected with a third resistor in series and is grounded.
2. The distribution line insulated conductor rainwater on discharge influence test device according to claim 1, characterized in that: the horn is a copper horn.
3. The distribution line insulated conductor rainwater on discharge influence test device according to claim 1, characterized in that: the small opening at one end of the horn is slightly larger than the diameter of the insulated wire, so that the insulated wire just penetrates through the small opening of the horn.
4. The distribution line insulated conductor rainwater on discharge influence test device according to claim 1, characterized in that: the value range of the first protection resistor is any value between 100 and 200 ohms; the value range of the second protection resistor is any value between 10k and 20k ohms; the value range of the second resistance is any value between 50 and 100 ohms; the value range of the first resistor is any value between 1k and 2k ohms; the value range of the capacitor can be any value between 500 and 800 pF.
5. The distribution line insulated conductor rainwater on discharge influence test device according to claim 1, characterized in that: the first protection resistance takes 100 ohms; the second protection resistance takes 10k ohm; the second resistance takes 50 ohms; the first resistance takes a value of 1k ohm; the capacitance takes the value of 500 pF.
6. The distribution line insulated conductor rainwater on discharge influence test device according to claim 1, characterized in that: the binding wire is an aluminum binding wire or a copper binding wire.
7. The distribution line insulated conductor rainwater on discharge influence test device according to claim 1, characterized in that: the winding form of the binding wire is different at the small opening side of one end of the horn, and the binding wire comprises a spiral shape or a cross overlapping shape.
8. The distribution line insulated conductor rainwater on discharge influence test device according to claim 1, characterized in that: the horn is made of an aluminum material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550900.8U CN212321765U (en) | 2019-09-18 | 2019-09-18 | Distribution lines insulated conductor rainwater is to experimental testing arrangement of discharge influence |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550900.8U CN212321765U (en) | 2019-09-18 | 2019-09-18 | Distribution lines insulated conductor rainwater is to experimental testing arrangement of discharge influence |
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| Publication Number | Publication Date |
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| CN212321765U true CN212321765U (en) | 2021-01-08 |
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| CN201921550900.8U Active CN212321765U (en) | 2019-09-18 | 2019-09-18 | Distribution lines insulated conductor rainwater is to experimental testing arrangement of discharge influence |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618357A (en) * | 2019-09-18 | 2019-12-27 | 国网辽宁省电力有限公司电力科学研究院 | Distribution line insulated conductor rainwater on discharge influence test device and method |
| CN116771325A (en) * | 2023-06-25 | 2023-09-19 | 宁波市电力设计院有限公司 | Stratum conductivity measuring instrument |
-
2019
- 2019-09-18 CN CN201921550900.8U patent/CN212321765U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618357A (en) * | 2019-09-18 | 2019-12-27 | 国网辽宁省电力有限公司电力科学研究院 | Distribution line insulated conductor rainwater on discharge influence test device and method |
| CN116771325A (en) * | 2023-06-25 | 2023-09-19 | 宁波市电力设计院有限公司 | Stratum conductivity measuring instrument |
| CN116771325B (en) * | 2023-06-25 | 2024-04-19 | 宁波市电力设计院有限公司 | Stratum conductivity measuring instrument |
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