CN207965043U - A kind of insulating material structure overpressure resistance detecting device - Google Patents
A kind of insulating material structure overpressure resistance detecting device Download PDFInfo
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- CN207965043U CN207965043U CN201820494663.7U CN201820494663U CN207965043U CN 207965043 U CN207965043 U CN 207965043U CN 201820494663 U CN201820494663 U CN 201820494663U CN 207965043 U CN207965043 U CN 207965043U
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- 239000011810 insulating material Substances 0.000 title claims abstract description 62
- 239000004020 conductor Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 abstract description 13
- 238000000605 extraction Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 12
- 238000009413 insulation Methods 0.000 description 10
- 238000005507 spraying Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 9
- 238000007747 plating Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
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- 230000009466 transformation Effects 0.000 description 5
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
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- 239000012774 insulation material Substances 0.000 description 2
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- 238000004544 sputter deposition Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model is related to a kind of insulating material structure overpressure resistance detecting devices, including pressure regulator, adjustable step-up transformer, sound transducer, current sensor, the first sample resistance, the second sample resistance, standard capacitance, data collecting card and terminal；The collection terminal of data collecting card is connected between the standard capacitance and the first sample resistance；The ungrounded end of second sample resistance is connected to the collection terminal of data collecting card；The ground terminal in the second sample resistance is arranged in the current sensor, and the current sensor is connected to the collection terminal of data collecting card；On the insulating material, the sound transducer is connected to the collection terminal of data collecting card for the sound transducer setting；The output end of the data collecting card is connected to terminal.Know discharge magnitude and position by sound transducer, the electricity size of shelf depreciation is detected by current sensor, obtains the performance of the insulating materials of sample under different voltages grade.
Description
Technical field
The utility model is related to insulating materials detection technique field, more particularly to a kind of insulating material structure resistance test dress
It sets.
Background technology
Insulating materials is the non electrically conductive material in the case where allowing voltage, but is not absolute non electrically conductive material, is added centainly outer
Under electric field strength effect, the processes such as conductive, polarization, loss, breakdown can also occur, and be used for a long time it also occur that aging.Insulation
Material is the most important element of electrical equipment.The quality of insulation performance directly affects whether electrical equipment can work normally.Therefore,
Electrical equipment manufacturer generally requires to carry out piezoelectricity experiment to insulating materials, to detect insulation performance.Some uses dielectric loss
The means such as angle detection, but method is single, can not complete detection go out insulation system performance, interim can not detect during the test
Its performance.
Utility model content
For this reason, it may be necessary to provide a kind of insulating material structure overpressure resistance detecting device and method, solve it is existing can not complete detection
Go out the performance of insulating materials, and now can not interim the problem of detecting its performance during experiment.
To achieve the above object, inventor provide a kind of insulating material structure overpressure resistance detecting device, including pressure regulator, can
Pressure transformer, sound transducer, current sensor, the first sample resistance, the second sample resistance, standard capacitance, data are increased to adopt
Truck and terminal；
The input terminal of the pressure regulator connects external power supply, and the output end of the pressure regulator is connected to adjustable boosting transformation
One end of the side of device, the other side of the adjustable step-up transformer is connected to the conductor part in sample, and passes through standard
Capacitance and the first sample resistance ground connection, the other end of the adjustable step-up transformer other side are connected to the insulated part of sample,
And it is grounded by the second sample resistance；
The collection terminal of data collecting card is connected between the standard capacitance and the first sample resistance；
The ungrounded end of second sample resistance is connected to the collection terminal of data collecting card；
The ground terminal in the second sample resistance is arranged in the current sensor, and the current sensor is connected to data acquisition
The collection terminal of card；
On the insulating material, the sound transducer is connected to the acquisition of data collecting card for the sound transducer setting
End；
The output end of the data collecting card is connected to terminal.
It advanced optimizes, further includes o controller, the input terminal of the o controller is connected to terminal, institute
The output end for stating o controller is connected to the control terminal of pressure regulator.
It advanced optimizes, is put by the first WeChat ID adjuster and first between the standard capacitance and the first sample resistance
Big device is connected to the collection terminal of data collecting card；
The ungrounded end of second sample resistance is connected to data by the second WeChat ID adjuster and the second amplifier
The collection terminal of capture card；
The current sensor is connected to the acquisition of data collecting card by third WeChat ID adjuster and third amplifier
End；
The sound transducer is connected to the acquisition of data collecting card by the 4th WeChat ID adjuster and the 4th amplifier
End.
It advanced optimizes, further includes sample fixer, the sample fixer is for fixing sample.
Inventor additionally provides another technical solution：A kind of insulating material structure resistance test method, including following step
Suddenly：
Voltage provides step：By adjustable step-up transformer voltage is provided to sample；
Acoustical signal acquisition step：The insulating materials that sample is detected by sound transducer acquires shelf depreciation acoustical signal；
Acoustical signal judgment step：If there is shelf depreciation acoustical signal, discharge characteristic extraction step is executed；
Discharge characteristic extraction step：Local discharge characteristic extraction is carried out by current sensor；
Classification and Identification step：The discharge characteristic of extraction is classified and identified, obtains its proof voltage grade and feature refers to
Line.
It advanced optimizes, the acoustical signal judgment step further includes：
If without shelf depreciation acoustical signal, boosting step is executed：
By output controller controls pressure regulator boost to the voltage that adjustable boosting transformation provides, it is rear to continue
Acoustical signal acquisition step.
It advanced optimizes, further includes after the Classification and Identification step：
Voltage judgment step：Judge to be adjusted whether the voltage that step-up transformer provides reaches highest voltage level, if so,
Then terminate resistance test, if it is not, boosting step is then executed, until the voltage that adjustable step-up transformer provides reaches ceiling voltage
Grade；
Boosting step：By output controller controls pressure regulator rise the voltage that adjustable boosting transformation provides
Then pressure executes acoustical signal acquisition step.
It advanced optimizes, the acoustical signal judgment step further includes：
If there is shelf depreciation acoustical signal, Electronic Speculum characteristic extraction step is carried out；
Electronic Speculum characteristic extraction step includes：Spraying plating conductive surface layer is carried out to the insulating materials of sample, then by scanning electricity
Mirror obtains molecular structure microscopic appearance, power spectrum and composition transfer analysis record of the insulating materials of sample after pressure resistance, and divides
Minor structure is broken rigidity and stress-response performance.
It advanced optimizes, " the carrying out spraying plating conductive surface layer to the insulating materials of sample " specifically includes：
Spraying plating conduction is carried out to the insulating materials of sample by ion sputtering spraying process using TiO2 Al2O3 materials
Surface layer.
It advanced optimizes, the thickness of the ammeter layer is between 45-85 Ethylmercurichlorendimides.
It is different from the prior art, above-mentioned technical proposal, the output electricity of adjustable step-up transformer can be adjusted by pressure regulator
Pressure, and is applied on sample, and the insulating materials of sample is under the action of high pressure, and internal air gap or impurity are because being born
Proof voltage grade is different, will produce shelf depreciation, is generated along with physical phenomenons such as sound, light, heat, electricity, passes through sound sensor
Device detects shelf depreciation acoustical signal to know discharge magnitude and position, and detection shelf depreciation can be quantified by current sensor
Electricity size, by two the first sample resistances and the second sample resistance and standard capacitance obtain respectively standard loop electric current and
Sample loop current amplitude and its phase etc. calculate sample capacitance and Dielectric loss tangent value by terminal, and
The voltage that adjustable step-up transformer provides different voltages grade is adjusted by pressure regulator, different voltages are applied to sample, are obtained not
With the performance of the insulating materials of sample under voltage class.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of insulating material structure overpressure resistance detecting device described in specific implementation mode；
Fig. 2 is a kind of structural schematic diagram of stator bar described in specific implementation mode；
Fig. 3 is a kind of flow diagram of insulating material structure resistance test method described in specific implementation mode；
Fig. 4 is another structural schematic diagram of stator bar described in specific implementation mode.
Reference sign：
1, bar conductor,
2, major insulation part,
3, low-resistance paint,
4, bubble,
5, impurity,
6, gap,
7, electrical pickoff,
8, stator core,
9, ammeter layer.
Specific implementation mode
For the technology contents of technical solution, construction feature, the objects and the effects are described in detail, below in conjunction with specific reality
It applies example and attached drawing is coordinated to be explained in detail.
Referring to Fig. 1, insulating material structure overpressure resistance detecting device described in the present embodiment, including pressure regulator, adjustable boosting become
Depressor, sound transducer, current sensor, the first sample resistance R1, the second sample resistance R2, mark capacitance CN, data acquisition
Card and terminal；
The input terminal of the pressure regulator connects external power supply, and the output end of the pressure regulator is connected to adjustable boosting transformation
One end of the side of device, the other side of the adjustable step-up transformer is connected to the conductor part in sample, and passes through mark
Capacitance CN and the first sample resistance R1 ground connection, the other end of the adjustable step-up transformer other side are connected to the insulation division of sample
Point, and pass through the second sample resistance R2 ground connection；
The collection terminal of data collecting card is connected between the mark capacitance CN and the first sample resistance R1；
The ungrounded end of the second sample resistance R2 is connected to the collection terminal of data collecting card；
The ground terminal in the second sample resistance R2 is arranged in the current sensor, and the current sensor is connected to data and adopts
The collection terminal of truck；
On the insulating material, the sound transducer is connected to the acquisition of data collecting card for the sound transducer setting
End；
The output end of the data collecting card is connected to terminal.
Sample is placed into the device and the performance of the insulating materials of sample is detected, by by the exhausted of sample
The side of edge material is connected to one end of adjustable step-up transformer secondary, and the other side of the insulating materials of sample is connected to and can increase
The other end of pressure transformer secondary, sound transducer is arranged on the insulating materials of sample, is carried out to adjustable by pressure regulator
The output voltage of step-up transformer is adjusted, and gives insulating materials to provide a high pressure, and sample by adjustable step-up transformer
Insulating materials under the action of high pressure, air entrapment or impurity will produce because the proof voltage grade born is different
Shelf depreciation, along with the physical phenomenons such as sound, light, heat, electricity generate, by sound transducer detect shelf depreciation acoustical signal to
Know discharge magnitude and position, the electricity size for detecting shelf depreciation can be quantified by current sensor, is acquired by data
Card acquisition mark capacitance CN and the first sample resistance R1 between and the second sample resistance R2 ungrounded end electric current amplitude and
Phase etc. calculates sample capacitance and Dielectric loss tangent value by terminal, and can be increased by pressure regulator adjusting
Pressure transformer provides the voltage of different voltages grade, and to sample application different voltages, sample is exhausted under acquisition different voltages grade
The performance of edge material.Several signals are delivered to by data collecting card in terminal, tracked by terminal process,
It calculates, analyzing processing, local defect, central hot water supply system and Dielectric loss tangent value inside insulating materials can be detected simultaneously, effectively
It improves with test data comparison and analysis between primary experiment on ground.Classified and identified in combination with shelf depreciation acoustic signature,
Set up proof voltage grade and characteristic fingerprint library, the standard as other sample detections.
Referring to Fig. 2, when sample is stator bar, stator bar includes insulating materials and bar conductor 1, insulation material
Material includes major insulation part 2 and low-resistance paint 3, and major insulation part 2 is wrapped in bar conductor 1, and low-resistance paint 3 is arranged in major insulation part
The bar conductor 1 of stator bar is connected to secondary one end of adjustable step-up transformer by 2 surface, and is carried out to insulating materials
Ground connection, since the insulated part of electronics bar is connected to stator core 8, by the way that stator core 8 to be grounded, wherein electronics
The low-resistance paint 3 of bar insulation part is electrically connected to stator core 8 by electrical pickoff 7, and has between low-resistance paint 3 and electronics iron core
There is gap 6, due to depositing ability bubble 4 and impurity 5 etc. in the insulating materials of stator bar, after applying high pressure to it, will produce office
Portion discharges, and is generated along with physical phenomenons such as sound, light, heat, electricity, and then determined by sound transducer, current sensor etc.
Performance of the insulating materials of sub-line stick under different voltages grade.
In the present embodiment, further include output in order to the output voltage grade of the adjustable step-up transformer of adjust automatically
The input terminal of controller, the o controller is connected to terminal, and the output end of the o controller is connected to tune
The control terminal of depressor.Terminal to the several signals that are received by data collecting card into after line trace, calculating analyzing processing,
Voltage class according to experiment setting and detection anticipation, feedback output intelligent control output controller controls pressure regulator are adjusted
Test voltage, Real-time Feedback to output controller controls pressure regulator realize the output voltage of the adjustable step-up transformer of adjust automatically
Grade.
Since local discharge signal is fainter, these small-signals can be effectively obtained in order to obtain, the mark electricity
Data acquisition is connected to by the first WeChat ID adjuster SC1 and the first amplifier SA1 between appearance CN and the first sample resistance R1
The collection terminal of card；The ungrounded end of the second sample resistance R2 passes through the second WeChat ID adjuster SC2 and the second amplifier SA2
It is connected to the collection terminal of data collecting card；The current sensor passes through third WeChat ID adjuster SC3 and third amplifier SA3
It is connected to the collection terminal of data collecting card；The sound transducer passes through the 4th WeChat ID adjuster SC4 and the 4th amplifier SA4
It is connected to the collection terminal of data collecting card.Signal progress signal of not going the same way is highlighted by WeChat ID adjuster and amplifier defeated
Go out, to obtain useful signal.
In the present embodiment, for more preferably fixed sample, and be detected the insulating materials of sample, further include sample
Product fixator, the sample fixer is for fixing sample.Sample is fixed by sample fixer, enabling very well
Ground is monitored the insulating materials of sample, and sample fixer can be carried out with pedestal and two grip shanks by two grip shanks
Sample is clamped, wherein sample fixer can be clamp structure, yoke configurations or the buckle structure etc. of insulation.
Referring to Fig. 3, in another embodiment, a kind of insulating material structure resistance test method includes the following steps：
Voltage provides step S310：By adjustable step-up transformer voltage is provided to sample；
Acoustical signal acquisition step S320：The insulating materials that sample is detected by sound transducer acquires shelf depreciation sound letter
Number；
Acoustical signal judgment step S330：If there is shelf depreciation acoustical signal, discharge characteristic extraction step is executed；
Discharge characteristic extraction step S341：Local discharge characteristic extraction is carried out by current sensor；
Classification and Identification step S350：The discharge characteristic of extraction is classified and identified, its proof voltage grade and spy are obtained
Levy fingerprint.
Sample is placed into the device and the performance of the insulating materials of sample is detected, by by the exhausted of sample
The side of edge material is connected to one end of adjustable step-up transformer secondary, and the other side of the insulating materials of sample is connected to and can increase
The other end of pressure transformer secondary, sound transducer is arranged on the insulating materials of sample, is carried out to adjustable by pressure regulator
The output voltage of step-up transformer is adjusted, and gives insulating materials to provide a high pressure, and sample by adjustable step-up transformer
Insulating materials under the action of high pressure, internal air gap or impurity will produce because the proof voltage grade born is different
Shelf depreciation, along with the physical phenomenons such as sound, light, heat, electricity generate, by sound transducer detect shelf depreciation acoustical signal to
Know discharge magnitude and position, the electricity size for detecting shelf depreciation can be quantified by current sensor, is acquired by data
Card acquires between standard capacitance and the first sample resistance and the amplitude of the electric current at the ungrounded end of the second sample resistance and phase etc.,
Sample capacitance and Dielectric loss tangent value are calculated by terminal, and adjustable step-up transformer is adjusted by pressure regulator
The voltage for providing different voltages grade applies different voltages to sample, obtains the insulating materials of sample under different voltages grade
Performance.Several signals are delivered to by data collecting card in terminal, by terminal by tracking, calculating, divide
Analysis is handled, and can detect local defect, central hot water supply system and Dielectric loss tangent value inside insulating materials simultaneously, is effectively improved same
Test data is compared and is analyzed between primary experiment.Classified and identified in combination with shelf depreciation acoustic signature, it is established that is resistance to
Voltage class and characteristic fingerprint library, the standard as other sample detections.
In order to the output voltage grade of the adjustable step-up transformer of adjust automatically, the acoustical signal judgment step S330 is also
Including：If without shelf depreciation acoustical signal, boosting step S360 is executed：It is carried out to adjustable by output controller controls pressure regulator
The voltage that section boosting transformation provides boosts, rear to continue acoustical signal acquisition step.Or the Classification and Identification step S350 it
After further include：Voltage judgment step S370：Judge to be adjusted whether the voltage that step-up transformer provides reaches highest voltage level,
If so, terminating resistance test, if it is not, boosting step S360 is then executed, until the voltage that adjustable step-up transformer provides reaches
To highest voltage level；Terminal to the several signals that are received by data collecting card into line trace, calculate analyzing processing
Afterwards, according to the voltage class of experiment setting and detection anticipation, feedback output intelligent control output controller controls pressure regulator carries out
Test voltage is adjusted, Real-time Feedback to output controller controls pressure regulator realizes the output of the adjustable step-up transformer of adjust automatically
Voltage class.
In order to further analyze insulating materials through pressure test structure change, the acoustical signal judgment step further includes：If
There is shelf depreciation acoustical signal, then carries out Electronic Speculum characteristic extraction step S342；Electronic Speculum characteristic extraction step S342 includes：To sample
Insulating materials carries out spraying plating conductive surface layer, then obtains molecule knot of the insulating materials of sample after pressure resistance by scanning electron microscope
Structure microscopic appearance, power spectrum and composition transfer analysis record, and molecular structure fracture rigidity and stress-response performance.Wherein, it uses
TiO2 Al2O3 materials carry out spraying plating conductive surface layer by ion sputtering spraying process to the insulating materials of sample.The electricity
The thickness on surface layer is between 45-85 Ethylmercurichlorendimides, wherein can judge thickness by color.Due to insulating materials under scanning electron microscope nothing
Method is observed, and conductive spraying plating ammeter layer need to be carried out to its surface.
Fig. 2 and Fig. 4 is please referred to, carries out up voltage pressure test when carrying out the insulating materials to stator bar, computer is whole
End acquires shelf depreciation acoustical signal by sound transducer and carries out local electrical feature extraction if there is shelf depreciation acoustical signal, and
Spraying plating ammeter layer 9 is carried out to the insulating materials of stator bar, the insulating materials of the good stator bar of spraying plating is placed on scanning electricity
Extracted under mirror, carry out respectively molecular structure microscopic appearance to the insulating materials of stator bar after pressure resistance, power spectrum at
Part mutation analysis record and molecular structure are broken the performance evaluations such as rigidity and stress-strain, further combined with shelf depreciation sound
Feature is classified and is identified, finally sets up proof voltage grade and characteristic fingerprint library in this way, if completing, the stator bar
The resistance test of insulating materials terminates, and otherwise carries out boost cycle resistance test by pressure regulator.In this way or extraction is insulated
Shelf depreciation mechanism of the material under different voltages grade is formed, partial discharges fault type and insulating materials life appraisal provide
Analysis foundation.
It should be noted that although the various embodiments described above have been described herein, it is not intended to limit
The scope of patent protection of the utility model.Therefore, the innovative idea based on the utility model carries out embodiment described herein
Change and modification or equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly
Or above technical scheme is used in other related technical areas indirectly, it is included in the patent protection model of the utility model
Within enclosing.
Claims (4)
1. a kind of insulating material structure overpressure resistance detecting device, which is characterized in that including pressure regulator, adjustable step-up transformer, sound
Sensor, current sensor, the first sample resistance, the second sample resistance, standard capacitance, data collecting card and terminal；
The input terminal of the pressure regulator connects external power supply, and the output end of the pressure regulator is connected to adjustable step-up transformer
One end of side, the other side of the adjustable step-up transformer is connected to the conductor part in sample, and passes through standard capacitance
And first sample resistance ground connection, the other end of the adjustable step-up transformer other side is connected to the insulated part of sample, and leads to
Cross the second sample resistance ground connection；
The collection terminal of data collecting card is connected between the standard capacitance and the first sample resistance；
The ungrounded end of second sample resistance is connected to the collection terminal of data collecting card；
The ground terminal in the second sample resistance is arranged in the current sensor, and the current sensor is connected to data collecting card
Collection terminal；
On the insulating material, the sound transducer is connected to the collection terminal of data collecting card for the sound transducer setting；
The output end of the data collecting card is connected to terminal.
2. insulating material structure overpressure resistance detecting device according to claim 1, which is characterized in that further include o controller,
The input terminal of the o controller is connected to terminal, and the output end of the o controller is connected to the control of pressure regulator
End processed.
3. insulating material structure overpressure resistance detecting device according to claim 1, which is characterized in that the standard capacitance and first
The collection terminal of data collecting card is connected between sample resistance by the first WeChat ID adjuster and the first amplifier；
The ungrounded end of second sample resistance is connected to data acquisition by the second WeChat ID adjuster and the second amplifier
The collection terminal of card；
The current sensor is connected to the collection terminal of data collecting card by third WeChat ID adjuster and third amplifier；
The sound transducer is connected to the collection terminal of data collecting card by the 4th WeChat ID adjuster and the 4th amplifier.
4. insulating material structure overpressure resistance detecting device according to claim 1, which is characterized in that further include sample fixer,
The sample fixer is for fixing sample.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494663.7U CN207965043U (en) | 2018-04-09 | 2018-04-09 | A kind of insulating material structure overpressure resistance detecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494663.7U CN207965043U (en) | 2018-04-09 | 2018-04-09 | A kind of insulating material structure overpressure resistance detecting device |
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| Publication Number | Publication Date |
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| CN207965043U true CN207965043U (en) | 2018-10-12 |
Family
ID=63727526
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226732A (en) * | 2018-04-09 | 2018-06-29 | 莆田学院 | A kind of insulating material structure overpressure resistance detecting device and method |
-
2018
- 2018-04-09 CN CN201820494663.7U patent/CN207965043U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226732A (en) * | 2018-04-09 | 2018-06-29 | 莆田学院 | A kind of insulating material structure overpressure resistance detecting device and method |
| CN108226732B (en) * | 2018-04-09 | 2024-04-09 | 莆田学院 | Insulation material structure pressure-resistant detection device and method |
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