CN108469581A - Multi-electrode observation system and its observation procedure for measurement of partial discharge - Google Patents
Multi-electrode observation system and its observation procedure for measurement of partial discharge Download PDFInfo
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- CN108469581A CN108469581A CN201810240816.XA CN201810240816A CN108469581A CN 108469581 A CN108469581 A CN 108469581A CN 201810240816 A CN201810240816 A CN 201810240816A CN 108469581 A CN108469581 A CN 108469581A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/16—Construction of testing vessels; Electrodes therefor
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Abstract
For the multi-electrode observation system and its observation procedure of measurement of partial discharge, belong to technical field of electric equipment.Technical essential：Electrode system includes rotating disk, insulating telescopic pipe, three top electrodes.Control system realizes the selection of electrode, the control of electrode spacing, the debugging of high-speed camera and high pressure access in host computer terminal.Top electrode has cylinder electrode, needlepoint electrode, spheric electrode.On the rotating pan by the installation of cylinder electrode, needlepoint electrode and spheric electrode, according to experiment needs, by control system choose needed for the electrode that uses, then adjustment electrode spacing, telescopic rod drives the downward electrode movement of top electrode, infrared range-measurement system measuring electrode spacing, when electrode spacing reaches setting spacing, control system stops the movement of insulated telescopic rods, fixed top electrode.The startup of high-speed camera is equally controlled by control system, and control system can realize the function of the focusing to high-speed camera, calibration and video recording, then applied voltage test.The present invention is used for measurement of partial discharge.
Description
Technical field
The present invention relates to a kind of observation systems and its observation procedure for measurement of partial discharge, and in particular to one kind is used for
The multi-electrode observation system and its observation procedure of measurement of partial discharge, belong to technical field of electric equipment.
Background technology
As the core equipment in electric system, power transformer can safely and steadily run the weight as power industry
In it is weight.The service life of power transformer and the dielectric strength of the paper oil insulation of inside transformer are of close concern to each other.When oilpaper is exhausted
After the disabler of edge, transformer will be unable to normal operation.Influence the i.e. internal office of one of principal element of paper oil insulation performance
It discharges in portion.Inside insulating board when existing defects, compared to cardboard, other bear higher voltage, electric field collection to fault location everywhere
In fault location cause the part occur shelf depreciation, with the extension of pressing time, shelf depreciation will continuous development finally lead
The breakdown of insulating board is caused to cause failure of insulation.In order to preferably study the experimental phenomena and the rule of development of shelf depreciation, it would be highly desirable to
A kind of multi-electrode observation system and observation procedure for measurement of partial discharge is devised, to improve the peace that traditional partial discharge measures
Full property and stability, improve the ornamental of partial discharge phenomenon, and the research to analyze paper oil insulation shelf depreciation mechanism, which provides, more to be added
Kind testing equipment.
Invention content
The brief overview about the present invention is given below, in order to provide about the basic of certain aspects of the invention
Understand.It should be appreciated that this general introduction is not the exhaustive general introduction about the present invention.It is not intended to determine the pass of the present invention
Key or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides certain concepts in simplified form,
In this, as the preamble in greater detail discussed later.
In consideration of it, to solve the above-mentioned problems, the present invention devises a kind of multi-electrode observation for measurement of partial discharge
System and its observation procedure improve the ornamental of partial discharge phenomenon, are to improve the safety and stability that traditional partial discharge measures
The research for analyzing paper oil insulation shelf depreciation mechanism provides more perfect testing equipment.
Scheme one：The present invention provides the multi-electrode observation systems for measurement of partial discharge, including electrode system, observation
System and range-measurement system；The electrode system includes rotating disk, electronic insulated telescopic rods, cylinder electrode, needlepoint electrode, spherical electricity
Pole, grounding electrode, test chamber, bottom plate and holder；The observation system is high-speed camera, and the range-measurement system is infrared ray
Rangefinder；
The test chamber is placed on bottom plate, and rotating disk, which is placed in the surface of test chamber and is rotated with the top of holder, pacifies
Dress, rotating disk are established by holder and bottom plate and are connected, and rotating disk driving motor drives rotating disk rotation, the cylinder electrode, needle
Sharp electrode and spheric electrode are established a connection by electronic insulated telescopic rods with rotating disk, and electronic insulated telescopic rods are mounted on
In rotating disk, cylinder electrode, needlepoint electrode and spheric electrode connect high pressure end and high-voltage electricity by being placed in above rotating disk
Source connects, and the grounding electrode is placed in test chamber；The high-speed camera and infrared ambulator are mounted on the perpendicular of holder
On straight part.
Further：The multi-electrode observation system for measurement of partial discharge further includes control system, the control
System includes host computer, controller, angular transducer, high voltage power supply control circuit, high-speed camera control circuit, rotating disk biography
Dynamic circuit for controlling motor and telescopic rod driving motor control circuit；The host computer is connect with controller, and controller is passed with angle
Sensor, infrared ambulator, high voltage power supply control circuit, high-speed camera control circuit, rotating disk driving motor control circuit,
Telescopic rod driving motor control circuit connects；The angular transducer, rotating disk driving motor control circuit and telescopic rod transmission
Circuit for controlling motor is placed in the inside of rotating disk.
Further：The bottom of the test chamber is provided with bleeder plug.So set, being convenient for test operation.
Wherein, the rotating disk installs three kinds of measurement top electrodes, respectively cylinder electrode, needlepoint electrode and spheric electrode,
Each measuring electrode is connected with an electronic insulated telescopic rods inside rotating disk, and electronic insulated telescopic rods can drive top electrode
It moves up and down, to control the spacing between top electrode and lower electrode (i.e. grounding electrode).
Wherein, setting angle sensor, rotating disk driving motor control circuit and telescopic rod transmission electricity in the rotating disk
Machine control circuit.When using different top electrodes, rotating disk turns over different angles.Rotating disk driving motor control circuit controls
The rotation of rotating disk.When top electrode is located at right over lower electrode, telescopic rod driving motor control circuit drives driving motor fortune
Row, telescopic rod drive the downward electrode movement of top electrode.
Wherein, the high-speed camera captures partial discharge phenomenon, the signal that controller spreads out of host computer into
Row processing, and high-speed camera control circuit is driven to run, high-speed camera carries out focusing and recording function and will take
Picture is back to host computer.
Wherein, after the host computer setting electrode spacing, infrared range-measurement system measures the spacing of upper/lower electrode, works as electrode spacing
After reaching setting value, the power-off of telescopic rod driving motor control circuit, telescopic rod stop motion, to realize the control to electrode spacing
System.
Wherein, the control system can realize control to system entirety by host computer, including top electrode selects, is electric
Interpolar away from control, high-speed camera focusing and video recording setting, subsequent controller drives high voltage power supply control circuit, to be measured
Sample carries out pressurization measurement, is measured rear control system decompression, and reset to single unit system, restores to before testing
Idle state, in case using next time.
Scheme two：The present invention provides the observation procedures of the multi-electrode observation system for measurement of partial discharge, rely on
It is realized for the multi-electrode observation system of measurement of partial discharge described in scheme one, specially：
Preparation stage：The electrode spacing used needed for setting in host computer, sample is placed at lower electrode, in host computer
After the selected electrode spacing of setting, controller receives the signal from host computer, driving angle sensor, rotating disk driving motor control
Circuit and telescopic rod driving motor control circuit processed, rotating disk are driven electrode and rotating disk rotation, angular transducer are driven to measure rotation
Turntable rotation angle, after elected fixed electrode moves to right over lower electrode, i.e., angular transducer measures angle and required electricity
Extremely corresponding angle is identical, and controller cuts off rotating disk driving motor control circuit, and rotating disk driving motor is stopped, electrode
It is fixed；Subsequent controller drives telescopic rod driving motor control circuit, telescopic rod driving motor to drive telescopic rod elongation, telescopic rod
Drive the downward electrode movement of top electrode；Infrared range-measurement system measures the spacing of upper/lower electrode, when the electrode spacing number of stadia surveying
According to it is identical as host computer setting value when, controller cuts off telescopic rod driving motor control circuit, and telescopic rod stop motion is electric at this time
Interpolar is away from the electrode spacing set for host computer；Then host computer is configured the focal length and recording function of high-speed camera,
Controller drives the work of high-speed camera control circuit, high-speed camera that can be focused and be recorded a video according to the setting of host computer work(
Can, so far, the preparation stage terminates；
Measuring phases：Upper computer selecting high pressure accesses, and signal is reached controller, and controller drives high voltage power supply control
Circuit works, and carries out pressurized treatments to interelectrode sample, starts to test；It is depressured after measurement, upper computer selecting resets work(
Can, testing equipment is integrally restored to the state to before testing by controller, in case next time, experiment used；If experimental enviroment is transformation
Device oil, after the test releases the transformer oil inside test chamber.
Advantageous effect：
The required electrode used may be selected in control system in the present invention, and utilizes rotating disk by required electrode rotary to under
The corresponding position of electrode.Insulating telescopic pipe pushes the downward electrode movement of top electrode, infrared distance measurement system after setting electrode spacing
Unified test amount upper/lower electrode spacing, after electrode spacing reaches setting, control system stops the movement of telescopic rod, at this time top electrode
It is fixed on setting position.Subsequent control system carries out high-speed camera the adjusting of focal length, so that host computer is showed clearly electric
The image of pole.It can start pressurization after preparation is ready to measure.After measurement, system is depressured.Control system is logical
Reset function is crossed to restore integral device to idle state.The safety and stability that traditional partial discharge measures is improved, is more improved
The ornamental of partial discharge phenomenon, the present invention provide more perfect experiment to analyze the research of paper oil insulation shelf depreciation mechanism
Equipment and test method.
Description of the drawings
Fig. 1 is the overall construction drawing of the multi-electrode observation system for measurement of partial discharge；
Fig. 2 is the multi-electrode observation system control structure figure for measurement of partial discharge；
Fig. 3 is rotary disk structure figure；
Fig. 4 is electrode and rotating disk installation relation schematic diagram.
In figure：1- rotating disks；The electronic insulated telescopic rods of 2-；3- cylinder electrodes；4- needlepoint electrodes；5- spheric electrodes；6- connects
Ground electrode；7- test chambers；8- bottom plates；9- holders；10- high-speed cameras；11- infrared ambulators；12- connects high pressure end；
13- bleeder plugs.
Specific implementation mode
The exemplary embodiment of the present invention is described hereinafter in connection with attached drawing.For clarity and conciseness,
All features of actual implementation mode are not described in the description.It should be understood, however, that developing any this actual implementation
Much decisions specific to embodiment must be made during example, to realize the objectives of developer, for example, symbol
Restrictive condition those of related to system and business is closed, and these restrictive conditions may have with the difference of embodiment
Changed.In addition, it will also be appreciated that although development is likely to be extremely complex and time-consuming, to having benefited from the present invention
For those skilled in the art of disclosure, this development is only routine task.
Herein, it is also necessary to which explanation is a bit, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings
The apparatus structure closely related with scheme according to the present invention and/or processing step are illustrate only, and is omitted and the present invention
The little other details of relationship.
Embodiment 1：As Figure 1-Figure 4, the multi-electrode observation system for measurement of partial discharge of the present embodiment, including
Electrode system, control system, observation system and range-measurement system；The electrode system include rotating disk 1, electronic insulated telescopic rods 2,
Cylinder electrode 3, needlepoint electrode 4, spheric electrode 5, grounding electrode 6, test chamber 7, bottom plate 8 and holder 9；The observation system is
High-speed camera 10, the range-measurement system are infrared ambulator 11；The control system includes host computer, controller, angle
Sensor, high voltage power supply control circuit, high-speed camera control circuit, rotating disk driving motor control circuit and telescopic rod transmission
Circuit for controlling motor；
The test chamber 7 is placed on bottom plate 8, rotating disk 1 be placed in the surface of test chamber 7 and with the top of holder 9
Rotational installation, rotating disk 1 are established by holder 9 and bottom plate 8 and are connected, and rotating disk driving motor drives rotating disk 1 to rotate, the circle
Column electrode 3, needlepoint electrode 4 and spheric electrode 5 are established a connection by electronic insulated telescopic rods 2 and rotating disk 1, electronic exhausted
Edge telescopic rod 2 is mounted in rotating disk 1, and cylinder electrode 3, needlepoint electrode 4 and spheric electrode 5 are by being placed in above rotating disk 1
The high pressure end 12 that connects connect with high voltage power supply, the grounding electrode 6 is placed in test chamber 7；10 He of the high-speed camera
Infrared ambulator 11 is mounted in the vertical portion of holder 9；The host computer is connect with controller, controller and angle sensor
Device, high voltage power supply control circuit, high-speed camera control circuit, rotating disk driving motor control circuit, is stretched infrared ambulator
Contracting bar driving motor control circuit connects；The angular transducer, rotating disk driving motor control circuit and telescopic rod transmission electricity
Machine control circuit is placed in the inside of rotating disk 1；The bottom of the test chamber 7 is provided with bleeder plug 13.
Embodiment 2：The observation procedure of the multi-electrode observation system for measurement of partial discharge of the present embodiment, specially：
Preparation stage：The electrode spacing used needed for setting in host computer, sample is placed at lower electrode, in host computer
After the selected electrode spacing of setting, controller receives the signal from host computer, driving angle sensor, rotating disk driving motor control
Circuit and telescopic rod driving motor control circuit processed, rotating disk are driven electrode and rotating disk rotation, angular transducer are driven to measure rotation
Turntable rotation angle, after elected fixed electrode moves to right over lower electrode, i.e., angular transducer measures angle and required electricity
Extremely corresponding angle is identical, and controller cuts off rotating disk driving motor control circuit, and rotating disk driving motor is stopped, electrode
It is fixed；Subsequent controller drives telescopic rod driving motor control circuit, telescopic rod driving motor to drive telescopic rod elongation, telescopic rod
Drive the downward electrode movement of top electrode；Infrared range-measurement system measures the spacing of upper/lower electrode, when the electrode spacing number of stadia surveying
According to it is identical as host computer setting value when, controller cuts off telescopic rod driving motor control circuit, and telescopic rod stop motion is electric at this time
Interpolar is away from the electrode spacing set for host computer；Then host computer is configured the focal length and recording function of high-speed camera,
Controller drives the work of high-speed camera control circuit, high-speed camera that can be focused and be recorded a video according to the setting of host computer work(
Can, so far, the preparation stage terminates；
Measuring phases：Upper computer selecting high pressure accesses, and signal is reached controller, and controller drives high voltage power supply control
Circuit works, and carries out pressurized treatments to interelectrode sample, starts to test；It is depressured after measurement, upper computer selecting resets work(
Can, testing equipment is integrally restored to the state to before testing by controller, in case next time, experiment used；If experimental enviroment is transformation
Device oil, after the test releases the transformer oil inside test chamber.
Although disclosed embodiment is as above, its content is only to facilitate understand the technical side of the present invention
Case and the embodiment used, are not intended to limit the present invention.Any those skilled in the art to which this invention pertains, not
Under the premise of being detached from disclosed core technology scheme, any modification and change can be made in form and details in implementation
Change, but protection domain defined by the present invention, the range that the appended claims that must still be subject to limits.
Claims (4)
1. the multi-electrode observation system for measurement of partial discharge, which is characterized in that including electrode system, observation system and ranging
System；The electrode system includes rotating disk (1), electronic insulated telescopic rods (2), cylinder electrode (3), needlepoint electrode (4), spherical shape
Electrode (5), grounding electrode (6), test chamber (7), bottom plate (8) and holder (9)；The observation system is high-speed camera
(10), the range-measurement system is infrared ambulator (11)；
The test chamber (7) is placed on bottom plate (8), rotating disk (1) be placed in the surface of test chamber (7) and with holder (9)
Top rotational installation, rotating disk (1), which passes through holder (9) and bottom plate (8), to be established and connects, and rotating disk driving motor drives rotating disk
(1) it rotates, the cylinder electrode (3), needlepoint electrode (4) and spheric electrode (5) pass through electronic insulated telescopic rods (2) and rotation
Disk (1) establishes a connection, and electronic insulated telescopic rods (2) are mounted in rotating disk (1), cylinder electrode (3), needlepoint electrode (4)
It is connect with high voltage power supply by being placed in the high pressure end (12) that connects of rotating disk (1) above with spheric electrode (5), the ground connection electricity
Pole (6) is placed in test chamber (7)；The high-speed camera (10) and infrared ambulator (11) are mounted on the perpendicular of holder (9)
On straight part.
2. the multi-electrode observation system according to claim 1 for measurement of partial discharge, which is characterized in that multi-electrode is seen
Examining system further includes control system, and the control system includes host computer, controller, angular transducer, high voltage power supply control electricity
Road, high-speed camera control circuit, rotating disk driving motor control circuit and telescopic rod driving motor control circuit；It is described upper
Machine is connect with controller, controller and angular transducer, infrared ambulator, high voltage power supply control circuit, high-speed camera control
Circuit processed, rotating disk driving motor control circuit, the connection of telescopic rod driving motor control circuit；The angular transducer, rotation
Disk driving motor control circuit and telescopic rod driving motor control circuit are placed in the inside of rotating disk (1).
3. the multi-electrode observation system according to claim 1 or 2 for measurement of partial discharge, which is characterized in that described
The bottom of test chamber (7) is provided with bleeder plug (13).
4. the observation procedure of the multi-electrode observation system for measurement of partial discharge, which is characterized in that be specially：
Preparation stage：The electrode spacing used needed for setting in host computer, sample is placed at lower electrode, is arranged in host computer
After selected electrode spacing, controller receives the signal from host computer, driving angle sensor, rotating disk driving motor control electricity
Road and telescopic rod driving motor control circuit, rotating disk are driven electrode and rotating disk rotation, angular transducer are driven to measure rotating disk
Rotation angle, after elected fixed electrode moves to right over lower electrode, i.e., angular transducer measures angle and required electrode pair
The angle answered is identical, and controller cuts off rotating disk driving motor control circuit, and rotating disk driving motor is stopped, and electrode is solid
It is fixed；Subsequent controller drives telescopic rod driving motor control circuit, telescopic rod driving motor to drive telescopic rod elongation, telescopic rod band
The downward electrode movement of dynamic top electrode；Infrared range-measurement system measures the spacing of upper/lower electrode, when the electrode spacing data of stadia surveying
When identical as host computer setting value, controller cuts off telescopic rod driving motor control circuit, telescopic rod stop motion, at this time electrode
Spacing is the electrode spacing of host computer setting；Then host computer is configured the focal length and recording function of high-speed camera, control
Device processed driving high-speed camera control circuit work, high-speed camera can be focused and be recorded a video according to the setting of host computer work(
Can, so far, the preparation stage terminates；
Measuring phases：Upper computer selecting high pressure accesses, and signal is reached controller, and controller drives high voltage power supply control circuit
Work carries out pressurized treatments to interelectrode sample, starts to test；It is depressured, upper computer selecting reset function, leads to after measurement
It crosses controller and testing equipment is integrally restored to the state to before testing, in case next time, experiment used；If experimental enviroment is transformer oil,
The transformer oil inside test chamber is released after the test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810240816.XA CN108469581A (en) | 2018-03-22 | 2018-03-22 | Multi-electrode observation system and its observation procedure for measurement of partial discharge |
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| CN201810240816.XA CN108469581A (en) | 2018-03-22 | 2018-03-22 | Multi-electrode observation system and its observation procedure for measurement of partial discharge |
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| CN108469581A true CN108469581A (en) | 2018-08-31 |
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| CN201810240816.XA Pending CN108469581A (en) | 2018-03-22 | 2018-03-22 | Multi-electrode observation system and its observation procedure for measurement of partial discharge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109342895A (en) * | 2018-10-26 | 2019-02-15 | 许继（厦门）智能电力设备股份有限公司 | A kind of gas-insulated characteristic test device |
| CN111462599A (en) * | 2020-03-10 | 2020-07-28 | 合肥工业大学 | Gas discharge tube discharge experiment simulation device |
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