CN113432860A - Ground wire insulator electrode performance simulation test device and method - Google Patents
Ground wire insulator electrode performance simulation test device and method Download PDFInfo
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- CN113432860A CN113432860A CN202110832461.5A CN202110832461A CN113432860A CN 113432860 A CN113432860 A CN 113432860A CN 202110832461 A CN202110832461 A CN 202110832461A CN 113432860 A CN113432860 A CN 113432860A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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Abstract
The application discloses ground wire insulator electrode performance simulation test device and method, the device includes: the insulator comprises an insulator main body, a tensioner and a tension simulator; the insulator main part includes: an iron cap, an iron cap electrode and a steel pin electrode; the iron cap electrode and the steel pin electrode are both arranged on the iron cap, and a gap is formed between the iron cap electrode and the steel pin electrode; the tensioner comprises a lead and a tightness adjuster; one end of the lead is connected with the bottom of the iron cap, and the other end of the lead is fixedly arranged; the tightness adjuster is arranged on the lead and used for adjusting the tightness of the lead; the tension simulator comprises an elastic piece and an elasticity adjuster; one end of the elastic piece is connected with the iron cap electrode, and the other end of the elastic piece is connected with the first end of the elastic regulator; the second end of the elastic force regulator is fixedly arranged and used for controlling the elastic piece to stretch and contract according to a preset stretching period. The whole device is easy and convenient to operate, has high automation degree, and can be used for simulating the test degradation condition after the iron cap electrode is installed to obtain the mechanical property of the ground wire insulator.
Description
Technical Field
The application relates to the technical field of insulator performance simulation, in particular to a device and a method for a ground insulator electrode performance simulation test.
Background
The ground wire insulator is composed of a common insulator and a discharge electrode, is used for connecting the overhead ground wire and the iron tower, and plays a role in mechanical support and electrical isolation. The existing standard for defining ground wire insulators is JB/T9680-2012 insulator for high-voltage overhead transmission line ground wires. In this standard, the shape and size parameters of the discharge electrode are specified, and therefore, in an experiment for detecting whether or not the ground insulator meets the standard, a simulation experiment for judging whether or not the performance of the discharge electrode meets the standard is not provided, and only the bolt torque for fixing the discharge electrode is often judged only for the insulator body and also in a sampling experiment.
Disclosure of Invention
In view of the above, an object of the present application is to provide a device and a method for a ground insulator electrode performance simulation test, which are used to solve the problem that a simulation experiment for determining whether the performance of a discharge electrode meets the standard is not available in the existing ground insulator detection standard.
In order to achieve the above technical object, a first aspect of the present application provides a performance simulation test device for an electrode of a ground insulator, including: the insulator comprises an insulator main body, a tensioner and a tension simulator;
the insulator main part includes: an iron cap, an iron cap electrode and a steel pin electrode;
the iron cap is horizontally and fixedly arranged;
the iron cap electrode and the steel pin electrode are both arranged on the iron cap, and a gap is formed between the iron cap electrode and the steel pin electrode;
the tensioner comprises a lead and a tightness adjuster;
one end of the lead is connected with the bottom of the iron cap, and the other end of the lead is fixedly arranged;
the tightness adjuster is arranged on the lead and used for adjusting the tightness of the lead;
the tension simulator comprises an elastic piece and an elasticity regulator;
the elastic piece is horizontally arranged, one end of the elastic piece is connected with the iron cap electrode, and the other end of the elastic piece is connected with the first end of the elastic regulator;
and the second end of the elastic force regulator is fixedly arranged and used for controlling the elastic piece to stretch and contract according to a preset stretching period.
Further, a moistener is also included;
the fogger is fixedly arranged, and the nozzle faces to the joint of the iron cap and the iron cap electrode and is used for storing reagent and spraying the reagent according to a preset spraying period.
Further, the reagent is a sodium chloride solution.
Further, the tensioner further comprises a tension meter;
the tension meter is arranged on the lead and used for displaying the tension of the lead.
Further, the elasticity adjuster is an electric turntable;
the other end of the elastic piece is arranged on the end face of the electric turntable;
the electric turntable is used for driving the elastic piece to stretch.
Further, the iron cap is hung on the support.
The second aspect of the present application provides a ground wire insulator electrode performance simulation test method, which is applied to any one of the ground wire insulator electrode performance simulation test apparatuses described above;
the method comprises the following adjusting steps and testing steps after the adjusting steps are completed:
the adjusting step comprises:
adjusting the tension of the wire to a preset tension value through the tightness adjuster;
the elastic piece is controlled by the elastic force regulator to stretch according to a preset stretching cycle;
the testing steps comprise:
and measuring the length value of the gap between the iron cap electrode and the steel foot electrode according to a preset time period, and generating a change curve of the length value of the gap.
Further, this ground wire insulator electrode performance analogue test device still includes: a dampener;
the adjusting step further comprises:
and spraying a reagent to the joint of the iron cap electrode and the iron cap according to a preset spraying period through the moistener.
Further, the preset pull force value is in a range of 8kN to 10 kN.
Further, in the preset stretching period, the maximum tension of the elastic member is 5N, and the minimum tension of the elastic member is 0N.
According to the technical scheme, the device and the method for simulating the electrode performance of the ground wire insulator can simulate the connection of the insulator main body and the ground wire by arranging the tensioner; the elastic piece in the tension simulator is connected with the iron cap electrode, so that the influence of wind force on the iron cap electrode can be simulated; the whole device is easy and convenient to operate, the automation degree is high, the mechanical performance is obtained by simulating the degradation degree of the test after the iron cap electrode is installed, and the problem that whether the performance of the discharge electrode meets the standard or not in the existing ground wire insulator detection standard is solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic overall structure diagram of a ground insulator electrode performance simulation test device provided in an embodiment of the present application;
FIG. 2 is a graph showing the variation of the tension of an elastic member in a simulation test device for testing the performance of an electrode of a ground insulator according to the present embodiment of the present application as a tension regulator rotates;
fig. 3 is a curve showing a change of a gap length value with test time in a simulation test method for testing performance of an electrode of a ground insulator according to an embodiment of the present disclosure;
in the figure: 1. an insulator main body; 11. an iron cap; 12. an iron cap electrode; 13. a steel pin electrode; 2. a tensioner; 21. a wire; 22. a slack adjuster; 23. a tension meter; 3. a tension simulator; 31. an elastic member; 32. a spring force adjuster; 4. a dampener; 5. and (4) a bracket.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection claimed herein.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses a device and a method for simulating and testing the performance of an electrode of a ground wire insulator.
Referring to fig. 1, an embodiment of the present application provides a performance simulation test apparatus for an electrode of a ground insulator, including: insulator main part 1, strainer 2 and pulling force simulator 3.
Wherein, insulator main part 1 includes: an iron cap 11, an iron cap electrode 12 and a steel pin electrode 13; the iron cap 11 is horizontally and fixedly arranged; the iron cap electrode 12 and the steel pin electrode 13 are both mounted on the iron cap 11, and a gap is formed between the iron cap electrode 12 and the steel pin electrode 13.
The tensioner 2 comprises a lead 21 and a tightness adjuster 22; one end of the lead 21 is connected with the bottom of the iron cap 11, and the other end is fixedly arranged; the slack adjuster 22 is disposed on the wire 21 and is configured to adjust the slack of the wire 21.
Specifically, the tensioner 2 is used for simulating the connection condition of the iron cap 11 and the ground wire; wherein, the bottom of wire 21 one end connection iron cap 11, for example can connect on steel foot electrode 13, and the other end of wire 21 is fixed to be set up, for example can connect ground or connect on the heavy object, later through the elasticity regulator 22 the elasticity of adjusting wire 21 to accord with the actual connection condition of insulator main part 1 can.
The tension simulator 3 comprises an elastic member 31 and an elasticity adjuster 32; the elastic piece 31 is horizontally arranged, one end of the elastic piece is connected with the iron cap electrode 12, and the other end of the elastic piece is connected with the first end of the elastic regulator 32; the second end of the elastic force adjuster 32 is fixedly arranged and used for controlling the elastic member 31 to stretch and contract according to a preset stretching and contracting period. The elastic member 31 may be a spring, a rope having elasticity, or the like, without limitation.
Specifically, the tension simulator 3 is used for simulating the deterioration condition of the insulator main body 1 under the action of wind force; in practical application, the iron cap 11 is generally horizontally installed, and in order to make the simulation data more accurate, the elastic member 31 is also horizontally installed. The elasticity adjuster 32 is used for driving the elastic part 31 to periodically stretch and contract so as to simulate the periodic change of wind power under the actual condition; wherein, the elasticity adjuster 32 can be an electric telescopic rod or the like.
It should be noted that, the actual wind conditions of the installation site of the insulator main body 1 may be collected in advance, and the elasticity adjusting period of the elasticity adjuster 32 may be adaptively adjusted.
Further, a dampener 4 is included; the moistener 4 is fixedly arranged, and the nozzle faces to the joint of the iron cap 11 and the iron cap electrode 12 and is used for storing the reagent and spraying the reagent according to a preset spraying period.
Specifically, the moistener 4 is provided for simulating the deterioration of the joint of the iron cap 11 and the iron cap electrode 12 after corrosion, and the reagent and the concentration of the reagent in the moistener 4 can be adjusted according to the actual site where the insulator body 1 is installed.
Further, in this embodiment, the reagent is a sodium chloride solution.
Further, the tensioner 2 further comprises a tension meter 23; the tension meter 23 is disposed on the wire 21 for displaying the tension of the wire 21.
Specifically, the tension value of the current wire 21 can be more conveniently judged by the tension meter 23.
Further, the elasticity adjuster 32 is an electric rotary disc; the other end of the elastic piece 31 is arranged on the end surface of the electric turntable; the electric turntable is used for driving the elastic piece 31 to stretch and retract. Wherein, the elastic member 31 is connected with one side of the electric turntable so that the rotation of the electric turntable does not interfere with the end of the elastic member 31.
Specifically, a graph of the rotation period and the tension variation of the spring force adjuster 32 can be seen in fig. 2. The other end of the elastic member 31 is connected to the end face of the electric turntable, so that when the electric turntable rotates circumferentially, the other end of the elastic member 31 moves circumferentially, and the elastic member 31 moves periodically in a stretching operation and a vertical swinging motion, thereby better simulating the wind force condition in the actual situation.
Further, the iron cap 11 is hung on the bracket 5, and the practical application condition that the iron cap 11 is installed on the bracket 5 is met.
The above is the first embodiment provided in the present application, and the following is the second embodiment provided in the present application.
The second embodiment of the present application provides a ground insulator electrode performance simulation test method, which is applied to the ground insulator electrode performance simulation test apparatus of any one of the first embodiment, and the ground insulator electrode performance simulation test apparatus includes: the insulator comprises an insulator main body 1, a tensioner 2 and a tension simulator 3; the insulator main body 1 includes: an iron cap 11, an iron cap electrode 12 and a steel pin electrode 13; the tensioner 2 comprises a lead 21 and a tightness adjuster 22; the tensile force simulator 3 includes an elastic member 31 and an elastic force adjuster 32.
The method comprises the following adjusting steps and testing steps after the adjusting steps are completed:
the adjusting step comprises:
s11, adjusting the tension of the lead 21 to a preset tension value through the slack adjuster 22;
specifically, the preset tension value may be in the range of 8kN to 10kN depending on the actual installation situation.
S12, controlling the elastic piece 31 to stretch and contract according to a preset stretching and contracting period through the elastic adjuster 32;
specifically, according to the actual installation situation, the maximum tension of the elastic member 31 may be 5N and the minimum tension may be 0N during the expansion and contraction cycle.
In case a dampener 4 is included, the adjusting step further comprises:
and S13, spraying the reagent to the joint of the iron cap electrode 12 and the iron cap 11 through the wetting device 4 according to a preset spraying period.
The testing steps comprise:
and S21, measuring the gap length value between the iron cap electrode and the steel foot electrode according to a preset time period, and generating a change curve of the gap length value.
The applicant finds that the main body of the ground wire insulator is less problematic in practical application, and the main problem is that of the iron cap electrode. The iron cap electrode fixed by the bolt can deviate, the electrode gap after deviation is increased or reduced, and the electrode is difficult to discharge under the action of lightning current or forms continuous discharge under power frequency induction voltage. The deviation of the iron cap electrode is not caused by insufficient bolt torque but caused by the combined action of the electrode and the corrosion of a zinc coating at the joint of the iron cap electrode and the insulator due to the superposition of the electrode and the tension of the ground wire under the action of wind power and electromagnetic force. The influence on the mechanical property of the ground wire insulator, especially the mechanical property of the insulator iron cap electrode under the combined action of multiple factors is not verified by a test method and a test device in the prior art.
Therefore, in the present application, by adjusting steps S11, S12, and S13, it is possible to simulate the deterioration of the iron cap 11 and the iron cap electrode 12 due to corrosion and wind, and draw a change curve of the gap length value in step S21, in a case where the actual insulator is mounted, and as shown in fig. 3, it is possible to effectively diagnose the deterioration of the mechanical properties of the ground insulator due to wind, ground tension, and corrosion.
Although the present invention has been described in detail with reference to examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (10)
1. The utility model provides a ground wire insulator electrode performance analogue test device which characterized in that includes: the insulator comprises an insulator main body, a tensioner and a tension simulator;
the insulator main part includes: an iron cap, an iron cap electrode and a steel pin electrode;
the iron cap is horizontally and fixedly arranged;
the iron cap electrode and the steel pin electrode are both arranged on the iron cap, and a gap is formed between the iron cap electrode and the steel pin electrode;
the tensioner comprises a lead and a tightness adjuster;
one end of the lead is connected with the bottom of the iron cap, and the other end of the lead is fixedly arranged;
the tightness adjuster is arranged on the lead and used for adjusting the tightness of the lead;
the tension simulator comprises an elastic piece and an elasticity regulator;
the elastic piece is horizontally arranged, one end of the elastic piece is connected with the iron cap electrode, and the other end of the elastic piece is connected with the first end of the elastic regulator;
and the second end of the elastic force regulator is fixedly arranged and used for controlling the elastic piece to stretch and contract according to a preset stretching period.
2. The ground insulator electrode performance simulation test device of claim 1, further comprising a dampener;
the fogger is fixedly arranged, and the nozzle faces to the joint of the iron cap and the iron cap electrode and is used for storing reagent and spraying the reagent according to a preset spraying period.
3. The ground insulator electrode performance simulation test device of claim 2, wherein the reagent is a sodium chloride solution.
4. The ground insulator electrode performance simulation test device of claim 1, wherein the tensioner further comprises a tension meter;
the tension meter is arranged on the lead and used for displaying the tension of the lead.
5. The ground insulator electrode performance simulation test device of claim 1, wherein the elasticity adjuster is an electric turntable;
the other end of the elastic piece is arranged on the end face of the electric turntable;
the electric turntable is used for driving the elastic piece to stretch.
6. The ground insulator electrode performance simulation test device of claim 1, wherein the iron cap is suspended from a bracket.
7. A ground wire insulator electrode performance simulation test method is characterized by being applied to the ground wire insulator electrode performance simulation test device of any one of claims 1 to 6;
the method comprises the following adjusting steps and testing steps after the adjusting steps are completed:
the adjusting step comprises:
adjusting the tension of the wire to a preset tension value through a slack adjuster;
the elastic piece is controlled by the elastic force regulator to stretch according to a preset stretching cycle;
the testing steps comprise:
and measuring the length value of the gap between the iron cap electrode and the steel foot electrode according to a preset time period, and generating a change curve of the length value of the gap.
8. The ground insulator electrode performance simulation test method of claim 7, wherein the ground insulator electrode performance simulation test apparatus further comprises: a dampener;
the adjusting step further comprises:
and spraying a reagent to the joint of the iron cap electrode and the iron cap according to a preset spraying period through the moistener.
9. The ground insulator electrode performance simulation test method of claim 7, wherein the preset pull force value is in a range of 8kN to 10 kN.
10. The ground insulator electrode performance simulation test method of claim 7, wherein in the preset expansion and contraction period, the maximum tension of the elastic member is 5N, and the minimum tension is 0N.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110832461.5A CN113432860B (en) | 2021-07-22 | 2021-07-22 | Ground wire insulator electrode performance simulation test device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110832461.5A CN113432860B (en) | 2021-07-22 | 2021-07-22 | Ground wire insulator electrode performance simulation test device and method |
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| CN113432860A true CN113432860A (en) | 2021-09-24 |
| CN113432860B CN113432860B (en) | 2023-05-16 |
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| JPH06215655A (en) * | 1993-01-13 | 1994-08-05 | Ngk Insulators Ltd | Gap adjustment in lightning arresting insulator device and gap gauge used in it |
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| CN212059669U (en) * | 2020-05-28 | 2020-12-01 | 大莲电瓷（福建）有限公司 | Iron cap tensile test device |
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2021
- 2021-07-22 CN CN202110832461.5A patent/CN113432860B/en active Active
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| JPH06215655A (en) * | 1993-01-13 | 1994-08-05 | Ngk Insulators Ltd | Gap adjustment in lightning arresting insulator device and gap gauge used in it |
| CN203587740U (en) * | 2013-09-18 | 2014-05-07 | 国家电网公司 | Insulator chain testing device |
| CN207396184U (en) * | 2017-09-20 | 2018-05-22 | 醴陵市高力特电瓷电器有限公司 | Insulator tension testing machine |
| CN110534264A (en) * | 2019-09-05 | 2019-12-03 | 广东电网有限责任公司江门供电局 | A kind of band fixed interval (FI) aerial earth wire hanging type glass insulator |
| CN212059669U (en) * | 2020-05-28 | 2020-12-01 | 大莲电瓷（福建）有限公司 | Iron cap tensile test device |
| CN112485619A (en) * | 2020-12-09 | 2021-03-12 | 国网辽宁省电力有限公司丹东供电公司 | Hierarchical multifunctional line insulator testing device and method |
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