CN110793762A - Bending resistance test system for single-column leg of three-column insulator of GIL equipment - Google Patents
Bending resistance test system for single-column leg of three-column insulator of GIL equipment Download PDFInfo
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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
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0038—Force sensors associated with force applying means applying a pushing force
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The invention discloses a bending resistance test system for a single-column leg of a three-column insulator of GIL equipment, which comprises a three-column insulator tool, a thrust test mechanism and a terminal mechanism which are sequentially connected; the three-post insulator tool is used for fixing the three-post insulator to be tested; the thrust testing mechanism comprises a motor, a thrust sensor, a displacement sensor and a strain gauge; the terminal mechanism comprises a terminal machine and an oscilloscope; the terminal mechanism comprises a terminal machine and an oscilloscope. The bending resistance testing system for the single column leg of the three-column insulator of the GIL equipment provided by the embodiment of the invention has the advantages that the frame is reasonable, simple, clear and visual, the bending resistance of the three-column insulator in actual GIL application can be accurately measured, the use is convenient, and the collection and the acquisition of performance information by technical personnel are greatly facilitated.
Description
Technical Field
The invention relates to the technical field of high-voltage electric tests, in particular to a bending resistance testing system for a single-column leg of a three-column insulator of GIL equipment.
Background
Gas-insulated Metal-enclosed transmission line (GIL) is a transmission bus, which has a wide development prospect and is widely used in large nuclear power plants and hydropower stations. The GIL is constructed as a metal pipe filled with sulfur hexafluoride (SF6) gas under pressure as an insulating medium, with a centrally located conductor for electrical energy. In practical applications, the three-post insulator serves as a main insulator for supporting and insulating the central conductor. It can be seen that the three post insulator plays a very important role in the GIL field.
Under different complex working conditions, the three-post insulator can be influenced by different factors such as thermal expansion and cold contraction of the conductor/shell, ground settlement, assembly errors and the like, so that the structure and the electrical performance of the three-post insulator are changed, and the three-post insulator can damage power transmission equipment. In the three-post insulator, the post legs of the three-post insulator are easily subjected to a large bending moment load, the three-post insulator with insufficient bending resistance of a single post leg can form an internal air gap defect under complex stress conditions of transportation, installation, operation and the like, and finally insulation failure and insulator cracking accidents are caused along with the long-term operation and development of equipment, so that personnel and property losses to a certain degree are caused.
At present, aiming at the detection of the three-post insulator, only the mechanical properties of the three-post insulator such as conductor gravity bearing and mechanical load property caused by axial displacement are concerned, the problem of column leg bending resistance which is necessary to face in practical application of the three-post insulator is not hunted, and the stress condition of the three-post insulator under the actual working condition is very complex, so that the difficulty of stress simulation of the three-post insulator is higher; and a test system with a large difference from the actual situation cannot truly and effectively reflect the stress information and the stress information of the three-post insulator, so that accurate relevant information of the bending resistance of the three-post insulator leg insert cannot be obtained.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a bending resistance test system for a single column leg of a three-column insulator of a GIL device, which can accurately reflect bending resistance information of a column leg insert of the three-column insulator under actual conditions.
In order to achieve the purpose, the bending resistance testing system for the single-column leg of the three-column insulator of the GIL equipment comprises a three-column insulator tool, a thrust testing mechanism and a terminal mechanism which are sequentially connected.
The three-post insulator tool is used for fixing the three-post insulator to be tested.
The thrust testing mechanism comprises a motor, a thrust sensor, a displacement sensor and a strain gauge; the terminal mechanism comprises a terminal machine and an oscilloscope.
The motor is used for providing thrust load and keeping the thrust load; the thrust sensor is used for detecting the numerical value of the thrust load and sending the numerical value to the terminal machine; the displacement sensor is used for detecting the displacement of the force application point of the motor and sending the displacement to the terminal machine; the strain gauge is arranged on the surface of the to-be-tested column leg insert of the to-be-tested three-column insulator, and is used for detecting strain information of the to-be-tested column leg insert of the to-be-tested three-column insulator and sending the strain information to the oscilloscope for displaying.
The terminal mechanism is used for calculating at least one of the following parameters according to the received data detected by the thrust testing mechanism: and the tensile strength, the yield strength and the bending moment load information of the to-be-tested column leg insert of the to-be-tested three-column insulator.
As the improvement of above-mentioned scheme, three post insulator frocks, thrust accredited testing organization and the terminal mechanism that connect gradually specifically include:
the direction of the to-be-tested column leg insert of the to-be-tested three-column insulator is perpendicular to the direction of the thrust load provided by the motor.
As an improvement of the scheme, the three-post insulator tool comprises a post leg fixing bolt.
As an improvement of the above scheme, the leg fixing bolt is arranged at an end of the to-be-tested leg insert of the to-be-tested three-post insulator and is fixedly connected with the to-be-tested leg insert of the to-be-tested three-post insulator.
As an improvement of the scheme, the strain gauge is attached to a high-stress area of the surface of the to-be-tested column leg insert of the to-be-tested three-column insulator.
As an improvement of the above scheme, the oscilloscope is connected to the terminal machine and is configured to send the strain information to the terminal machine.
As an improvement of the scheme, the strain gauge is a high-precision strain gauge with 0.5 micro strain.
According to the bending resistance test system for the single-column leg of the three-column insulator of the GIL equipment, the three-column insulator tool is adopted for fixing, so that the test accuracy is ensured; the method comprises the steps that a thrust load is applied to a to-be-tested column leg of a tested three-column insulator by a motor, and the stress condition of equipment under the actual working condition is accurately simulated by adjusting the thrust load application form, such as linear rising until the thrust is damaged, linear rising of the thrust until a tolerance value is stopped or linear rising of the thrust to the tolerance value is maintained; the method comprises the steps that a plurality of test devices with specific functions are adopted to detect to-be-tested column leg inserts of the to-be-tested three-column insulator, so that thrust information, displacement information and stress information of the to-be-tested column leg inserts under different stress conditions are obtained, and further, according to the calculation of a terminal, the information of the tensile strength, the yield strength, the bending moment load and the like of the to-be-tested column leg inserts of the to-be-tested three-column insulator is obtained, and therefore the detection of the bending resistance of the single column leg of the three-column insulator; meanwhile, the terminal equipment is adopted to count the data collected by the plurality of test equipment, so that technical personnel can conveniently and visually and comprehensively know the bending resistance information of the three-post insulator. Each part mechanism of the whole test system is effectively matched, the frame is reasonable and simple, clear and visual, the bending resistance of the leg insert of the three-post insulator in actual GIL application can be accurately measured, and meanwhile, the three-post insulator testing system is convenient to use and brings great convenience to collection and acquisition of performance information by technical personnel.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description 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 the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bending resistance testing system for a single-column leg of a three-column insulator of a GIL device according to an embodiment of the present invention;
fig. 2 is a schematic top view of a three-post insulator of a GIL device according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a single-leg stress structure of a three-post insulator of a GIL device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 protection scope of the present invention.
In describing embodiments of the present invention, it should be noted that the invention may be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In addition, the invention is operational with numerous general purpose or special purpose computing device environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multi-processor apparatus, distributed computing environments that include any of the above devices or equipment, and the like.
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "disposed on," "end," and the like as used herein are for illustrative purposes only. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The embodiment of the invention provides a bending resistance test system for a single-column leg of a three-column insulator of GIL equipment, which comprises a three-column insulator tool, a thrust test mechanism and a terminal mechanism which are sequentially connected. Specifically, please refer to fig. 1, which is a schematic structural diagram of a bending resistance testing system for a single-post leg of a three-post insulator of a GIL device according to an embodiment of the present invention, wherein the three-post insulator tool is used for fixing the three-post insulator to be tested. The thrust testing mechanism comprises a motor, a thrust sensor, a displacement sensor and a strain gauge. The terminal mechanism comprises a terminal machine and an oscilloscope.
Specifically, referring to fig. 2, which is a schematic top view of a three-post insulator of a GIL device according to an embodiment of the present invention, as shown in the figure, the three-post insulator includes a central embedded cylinder 2 and an external embedded part, the central embedded cylinder 2 is located at the center of the three-post insulator, and is made of a metal material. The external insert comprises three legs 1, 3 and 6 which are distributed with a phase difference of 120 degrees in a plane and embedded into the central embedded cylinder 2, and an optimized electric field at the leg is provided for the whole three-post insulator.
The three-post insulator tool is an auxiliary tool used in factory test detection of the three-post insulator. In this embodiment, the three-post insulator fixture is mainly used for fixing the three-post insulator to be tested, so that the whole testing system can effectively simulate the stress condition of the three-post insulator during testing.
It should be noted that, in this embodiment, the motor is used to provide a thrust load and maintain the thrust load; in an actual test, the leg direction of the to-be-tested leg insert of the to-be-tested three-post insulator is kept perpendicular to the direction of the thrust applied by the motor, please refer to fig. 3, which is a schematic diagram of a single-post-leg stress structure of the three-post insulator of the GIL device provided by the embodiment of the present invention, wherein the direction of the leg 3 is kept perpendicular to the direction of the thrust F. While the other two legs 1 and 6 (not shown in fig. 3) of the three-post insulator under test are not fixed. The thrust load is applied to the to-be-tested column leg insert of the to-be-tested three-column insulator through the motor, the thrust load application form can be that the thrust linearly rises until the to-be-tested three-column insulator is damaged, the thrust linearly rises to a tolerance value and stops or the thrust linearly rises to the tolerance value to keep the load, and other damage experiments or tolerance experiments can be carried out according to requirements.
The thrust sensor is used for detecting the numerical value of the thrust load and sending the numerical value to the terminal machine; the displacement sensor is used for detecting the displacement of the force application point of the motor and sending the displacement to the terminal machine; the strain gauge 4 is arranged on the surface of the to-be-tested leg insert 3 of the to-be-tested three-post insulator, as shown in fig. 3, and is used for detecting strain information of the to-be-tested leg insert of the to-be-tested three-post insulator and sending the strain information to the oscilloscope for displaying.
The terminal mechanism is used for calculating at least one of the following parameters according to the received data detected by the thrust testing mechanism: and the tensile strength, the yield strength and the bending moment load information of the to-be-tested column leg insert of the to-be-tested three-column insulator. And calculating parameters reflecting strength performance, such as bending load bearing, compression load or torsion load bearing and the like, by receiving data detected by the thrust testing mechanism to obtain the information of the tensile strength, the yield strength and the bending moment load of the column leg insert to be tested, and further obtain the relevant information of the bending resistance performance of the single column leg of the three-column insulator. Specifically, the terminal may be any terminal device in the prior art, such as a notebook computer, a mobile phone, a tablet computer, and the like, and a plurality of terminals may be provided as required, and professional intensity information processing software is provided on the terminal to obtain the best test effect.
According to the bending resistance test system for the single-column leg of the three-column insulator of the GIL equipment, which is provided by the embodiment of the invention, the three-column insulator tool is adopted for fixing, so that the test accuracy is ensured; the method comprises the steps that a thrust load is applied to a to-be-tested column leg of a tested three-column insulator by a motor, and the stress condition of equipment under the actual working condition is accurately simulated by adjusting the thrust load application form, such as linear rising until the thrust is damaged, linear rising of the thrust until a tolerance value is stopped or linear rising of the thrust to the tolerance value is maintained; the method comprises the steps that a plurality of test devices with specific functions are adopted to detect to-be-tested column leg inserts of the to-be-tested three-column insulator, so that thrust information, displacement information and stress information of the to-be-tested column leg inserts under different stress conditions are obtained, and further, according to the calculation of a terminal, the information of the tensile strength, the yield strength, the bending moment load and the like of the to-be-tested column leg inserts of the to-be-tested three-column insulator is obtained, and therefore the detection of the bending resistance of the single column leg of the three-column insulator; meanwhile, the terminal equipment is adopted to count the data collected by the plurality of test equipment, so that technical personnel can conveniently and visually and comprehensively know the bending resistance information of the three-post insulator. Each part mechanism of the whole test system is effectively matched, the frame is reasonable and simple, clear and visual, the bending resistance of the leg insert of the three-post insulator in actual GIL application can be accurately measured, and meanwhile, the three-post insulator testing system is convenient to use and brings great convenience to collection and acquisition of performance information by technical personnel.
Preferably, in the above embodiment, the three-post insulator tool, the thrust testing mechanism, and the terminal mechanism, which are connected in sequence, specifically include:
the direction of the to-be-tested column leg insert of the to-be-tested three-column insulator is perpendicular to the direction of the thrust load provided by the motor.
Preferably, in the above embodiment, referring to fig. 3, the three-post insulator tooling includes a leg fixing bolt 5.
Preferably, in the above embodiment, the leg fixing bolt 5 is disposed at an end of the to-be-tested leg insert 3 of the to-be-tested three-post insulator, and is used to ensure that the positions of the three-post insulator are relatively fixed and do not shake, the other two legs 1 and 6 (not shown in fig. 3) of the to-be-tested three-post insulator may be fixed according to actual requirements or not fixed, and after the bending resistance of a single leg is tested, the same bending resistance test may be performed on the other two subsequent legs.
Preferably, in the above embodiment, the strain gauge 4 is attached to a high stress area on the surface of the to-be-tested leg insert 3 of the to-be-tested three-post insulator. When the strain gauge deforms, deformation signals are measured or recorded through various sensors, and an oscilloscope is adopted to detect the signals in the embodiment of the invention so as to obtain accurate waveforms of the signals.
Preferably, in the above embodiment, the oscilloscope is connected to the terminal machine, and is configured to send the strain information to the terminal machine, and the terminal machine may be equipped with a corresponding database function, and analyze data detected by the entire test system, and record data information of the three-post insulators with different signal specifications, so as to facilitate comparison between the horizontal direction and the vertical direction by a technician. The waveform information of the oscilloscope is also sent to the terminal machine for analysis and storage, so that the comprehensive management of data is realized.
Preferably, in the above embodiment, the number of the strain gauges 5 may be set to a specific number according to actual test requirements, and the model specification of the strain gauges is preferably 0.5 micro-strain high-precision strain gauges. Strain is the ratio of the amount of deformation to the original dimension; the micro strain is also used for representing the change degree of deformation and is only used for describing extremely tiny deformation, generally speaking, the micro strain is millionth of strain, and the high-precision strain gauge with 0.5 micro strain is adopted, so that the leg insert stress information of the three-pillar insulator can be detected more accurately, and the measurement accuracy is greatly improved.
According to the bending resistance test system for the single-column leg of the three-column insulator of the GIL equipment, which is provided by the embodiment of the invention, the three-column insulator tool is adopted for fixing, so that the test accuracy is ensured; the method comprises the steps that a thrust load is applied to a to-be-tested column leg of a tested three-column insulator by a motor, and the stress condition of equipment under the actual working condition is accurately simulated by adjusting the thrust load application form, such as linear rising until the thrust is damaged, linear rising of the thrust until a tolerance value is stopped or linear rising of the thrust to the tolerance value is maintained; the method comprises the steps that a plurality of test devices with specific functions are adopted to detect to-be-tested column leg inserts of the to-be-tested three-column insulator, so that thrust information, displacement information and stress information of the to-be-tested column leg inserts under different stress conditions are obtained, and further, according to the calculation of a terminal, the information of the tensile strength, the yield strength, the bending moment load and the like of the to-be-tested column leg inserts of the to-be-tested three-column insulator is obtained, and therefore the detection of the bending resistance of the single column leg of the three-column insulator; meanwhile, the terminal equipment is adopted to count the data collected by the plurality of test equipment, so that technical personnel can conveniently and visually and comprehensively know the bending resistance information of the three-post insulator. Each part mechanism of the whole test system is effectively matched, the frame is reasonable and simple, clear and visual, the bending resistance of the leg insert of the three-post insulator in actual GIL application can be accurately measured, and meanwhile, the three-post insulator testing system is convenient to use and brings great convenience to collection and acquisition of performance information by technical personnel.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Claims (7)
1. A bending resistance test system for a single-column leg of a three-column insulator of GIL equipment is characterized by comprising a three-column insulator tool, a thrust test mechanism and a terminal mechanism which are sequentially connected;
the three-post insulator tool is used for fixing the three-post insulator to be tested;
the thrust testing mechanism comprises a motor, a thrust sensor, a displacement sensor and a strain gauge; the terminal mechanism comprises a terminal machine and an oscilloscope;
the motor is used for providing thrust load and keeping the thrust load; the thrust sensor is used for detecting the numerical value of the thrust load and sending the numerical value to the terminal machine; the displacement sensor is used for detecting the displacement of the force application point of the motor and sending the displacement to the terminal machine; the strain gauge is arranged on the surface of the to-be-tested column leg insert of the to-be-tested three-column insulator, and is used for detecting strain information of the to-be-tested column leg insert of the to-be-tested three-column insulator and sending the strain information to the oscilloscope for displaying;
the terminal mechanism is used for calculating at least one of the following parameters according to the received data detected by the thrust testing mechanism: and the tensile strength, the yield strength and the bending moment load information of the to-be-tested column leg insert of the to-be-tested three-column insulator.
2. The bending resistance testing system for the single-column leg of the three-column insulator of the GIL equipment as claimed in claim 1, wherein the three-column insulator tool, the thrust testing mechanism and the terminal mechanism which are sequentially connected specifically comprise:
the direction of the to-be-tested column leg insert of the to-be-tested three-column insulator is perpendicular to the direction of the thrust load provided by the motor.
3. The GIL apparatus three-post insulator single-post-leg bending resistance testing system according to claim 1, wherein said three-post insulator tooling comprises a post-leg fixing bolt.
4. The GIL device three-post insulator single-post-leg bending resistance testing system according to claim 3, wherein the post-leg fixing bolt is provided at an end portion of a post-leg insert to be tested of the three-post insulator to be tested and is fixedly connected with the post-leg insert to be tested of the three-post insulator to be tested.
5. The GIL device three post insulator single leg buckling strength testing system of claim 1, wherein said strain gage is applied to a high stress area of a surface of a post leg insert to be tested of said three post insulator under test.
6. The bending resistance testing system for the single-column leg of the three-column insulator of the GIL device according to claim 1, wherein the oscilloscope is connected to the terminal machine and is configured to send the strain information to the terminal machine.
7. The GIL apparatus three-post insulator single-post-leg bending resistance testing system according to claim 1, wherein said strain gauge is a 0.5 micro-strain high precision strain gauge.
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| CN201911058832.8A CN110793762A (en) | 2019-10-31 | 2019-10-31 | Bending resistance test system for single-column leg of three-column insulator of GIL equipment |
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| CN201911058832.8A CN110793762A (en) | 2019-10-31 | 2019-10-31 | Bending resistance test system for single-column leg of three-column insulator of GIL equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426412A (en) * | 2020-04-26 | 2020-07-17 | 华南理工大学 | Annular stress sensing device suitable for GI L three-post insulator and detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897479A (en) * | 2014-12-12 | 2015-09-09 | 国家电网公司 | Comprehensive detection system for mechanical properties of composite post insulator |
| CN106124151A (en) * | 2016-07-12 | 2016-11-16 | 南方电网科学研究院有限责任公司 | Extra-high voltage direct current single-column composite post insulator anti-seismic test device and test method thereof |
| CN110006637A (en) * | 2019-03-18 | 2019-07-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Three support insulator Mechanical Reliability test platform of GIL equipment and test method |
-
2019
- 2019-10-31 CN CN201911058832.8A patent/CN110793762A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897479A (en) * | 2014-12-12 | 2015-09-09 | 国家电网公司 | Comprehensive detection system for mechanical properties of composite post insulator |
| CN106124151A (en) * | 2016-07-12 | 2016-11-16 | 南方电网科学研究院有限责任公司 | Extra-high voltage direct current single-column composite post insulator anti-seismic test device and test method thereof |
| CN110006637A (en) * | 2019-03-18 | 2019-07-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Three support insulator Mechanical Reliability test platform of GIL equipment and test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111426412A (en) * | 2020-04-26 | 2020-07-17 | 华南理工大学 | Annular stress sensing device suitable for GI L three-post insulator and detection method |
| CN111426412B (en) * | 2020-04-26 | 2021-05-14 | 华南理工大学 | Annular stress sensing device for GIL three-post insulator and detection method |
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