CN102636697B - Device for dynamically measuring performance of insulating medium - Google Patents
Device for dynamically measuring performance of insulating medium Download PDFInfo
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- CN102636697B CN102636697B CN201210144890.4A CN201210144890A CN102636697B CN 102636697 B CN102636697 B CN 102636697B CN 201210144890 A CN201210144890 A CN 201210144890A CN 102636697 B CN102636697 B CN 102636697B
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- insulating medium
- medium performance
- kinetic measurement
- solidification process
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Abstract
The invention relates to a device for dynamically measuring performance of an insulating medium. The device for dynamically measuring the performance of the insulating medium comprises a positive electrode, a performance measurement instrument of the insulating medium, a metal utensil, a heater and a thermometer, wherein the metal utensil is used as a negative electrode, the heater is arranged at the bottom of the utensil, the thermometer is arranged at center inside the utensil, the distance between the positive electrode and the negative electrode is the thickness of the insulating medium to be tested, liquid insulating medium is filled between the positive electrode and the negative electrode, the insulating medium changes from liquid into solid in the heating process, in the whole curing phase, the parameters of the tested medium keep changing, and through the continuous testing and recording, dynamic variation curves can be obtained until the curves are constant.
Description
Technical field
The present invention relates to insulating medium performance test, particularly relate to a kind of device of kinetic measurement insulating medium performance.
Technical background
The insulating property such as insulation resistance and dielectric loss are the important parameters of insulating medium, are the important signs of insulating medium insulating property.All first fluid insulation resin-made is made solid-state standard model in the past---paint cake or coating agent which has to be dissolved in alcohol before use, finally again the paint cake after solidification completion or coating agent which has to be dissolved in alcohol before use are tested.During as measured its insulation resistance, normal electrode and megger is adopted to test.The insulation resistance measured is only the static insulating resistance of solid-state test sample, and can not measure the dynamic insulation resistance of this insulating medium.In addition, this proving installation is generally only limited to the insulation resistance of test insulating medium, when needs carry out other performance test as electric capacity, dielectric loss, exothermic heat of reaction peak etc. to insulating medium, other instruments must be adopted to test, and the result measured is the static insulating performance of solid-state test sample, like this, sample Parameters variation in the curing process cannot be measured and record.And these change parameters for judgement sample in extraneous factor as under the conditions such as temperature, time, pressure, the change of its state of cure, character and the technique for applying of insulating medium determine it is very important.
Summary of the invention
The object of the invention is to overcome above defect, provide a kind of dynamic to measure the device of insulating medium performance.
The technical scheme of the device of kinetic measurement insulating medium performance of the present invention is, a kind of dynamic measures the device of insulating medium performance, it comprises, positive electrode, negative electrode, insulating medium performance measurement instrument, also comprise vessel, well heater, thermometer, described well heater is placed in the bottom of vessel, thermometer is placed in centre in vessel, distance between positive electrode and negative electrode is the thickness of insulating medium to be measured, described liquid insulating medium injects between positive electrode and negative electrode, and liquid insulating medium is heating and curing as solid dielectric insulation by described well heater gradually.
In order to the insulation between vessel and measurement pole, fixing, the sizing of measuring pole, described vessel top is provided with fixed mount, and in order to be incubated, clean and preventing the material in course of reaction from volatilizing, fixed mount makes cover plate shape, for the ease of observation, described cover plate is transparence.
Described vessel are metalware, and described vessel are simultaneously as negative electrode.
In order to control temperature of reaction, be also provided with temperature control equipment, described temperature control equipment is for regulating the heating-up temperature of well heater.
In order to be beneficial to the measurement of the insulating medium of different-thickness, the distance energy up-down adjustment between described positive electrode and negative electrode.
In order to measure the dynamic insulation resistance of insulating medium, described insulating medium performance measurement instrument is megger.
In order to measure the dynamic capacity of insulating medium, described insulating medium performance measurement instrument is capacitance meter.
In order to measure the dynamic insulation dielectric loss of insulating medium, described insulating medium performance measurement instrument is electric bridge.
In order to measure the dynamic response exothermic peak of insulating medium, preset thermopair in insulating medium to be measured, records temperature curve during insulating medium reaction.
Described thermopair is Pt100 resistance.
The method of a kind of kinetic measurement insulating medium performance of the present invention is: insulating medium to be poured in metalware and covered positive electrode bottom surface 2 ~ 4mm by (1), starts well heater 10;
(2) be heated rapidly to the temperature that regulation requires, start writing time, temperature and resistance value, determine the test interval according to the speed of resistance change and carry out above record, until resistance value is stablized constant;
For the change of the dynamic insulation resistance or dielectric loss that realize insulating medium to be tested, the dynamic response exothermic peak of insulating medium can be recorded, preset Pt100 resistance simultaneously.
This device also can be applied indirectly to other field, if chemical field is for detecting in liquid material the moisture content and impurity that are difficult to be separated; In automation control area as on-line parameter harvester etc.
Technique effect of the present invention is, because insulating medium is liquid before heating, in heating process, insulating medium gradually becomes solid-state, before curing, the flowable state medium that crosses is had to flow between measurement pole, make medium all the time with measurement pole keep in touch, in whole cure stage, survey the performance of medium in continuous change, survey data also in continuous change, and be able to record.After completion of cure, the performance of insulating medium no longer changes, to survey performance parameter also just invariable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Embodiment 1, with reference to accompanying drawing, for measuring device during dynamic insulation resistance, comprising, positive electrode 3, metalware 8, megger 9, well heater 10, thermometer 5, insulation cover plate 7, metalware 8 is as negative electrode, well heater 10 is placed in the bottom of metalware 8, in order to control temperature of reaction, well heater 10 is also provided with temperature control equipment, thermometer 5 is placed in centre in metalware 8, distance between positive electrode 3 and metalware 8 inside surface is the thickness of insulating medium 11 to be measured, the upper flange of metalware 8 is provided with insulation cover plate 7, positive electrode 3 is fixed on the below of insulation cover plate 7 by screw II 2, positive pole exit 4 is provided with in the middle and upper part of positive electrode 3, positive pole exit 4 is connected with slotted line through the middle part of insulation cover plate 7, ring protection pole 6 (effect) is provided with at the cylindrical of positive electrode 3, insulation cover plate 7 is fixed on metalware 8 by screw I 1, for the ease of observing insulation cover plate 7 be transparence, insulation cover plate 7 has liquid insulating medium filling orifice, liquid insulating medium injects between positive electrode 3 and metalware 8 inside surface, by adjustment screw I 1, the depth of parallelism between the thickness of insulating medium 11 to be tested and insulating medium 11 can be adjusted.
During measurement, insulating medium 11 to be poured in metalware 8 and to cover positive electrode 3 bottom surface 2 ~ 4mm, start well heater 10, be heated rapidly to the temperature that regulation requires, start writing time, temperature and resistance value, determine the test interval according to the speed of resistance change and carry out above record, until resistance value is stablized constant.Like this, insulating medium 11 is just obtained by liquid state to the insulating resistance value in solid-state change procedure.
Embodiment 2, for measuring the device of dynamic response exothermic peak, by Pt100 resistance 12 preset in embodiment 1, can realize the dynamic insulation resistance of insulating medium 11 to be tested or the change of dielectric loss, can record the dynamic response exothermic peak of insulating medium 11 simultaneously.
Be more than two embodiments of the present invention, two preferred demonstration example.Protection scope of the present invention has more than and is limited to above-mentioned embodiment.All technical schemes with the present embodiment equivalence are used for measuring the dynamic capacity of insulating medium 11 as megger changed into capacitance meter; and megger changed into the dynamic media loss that electric bridge is used for measuring insulating medium 11; or this device is applied indirectly to other field; if chemical field is for detecting in some liquid materials the moisture content and impurity that are difficult to be separated; in automation control area as on-line parameter harvester etc., all belong to protection scope of the present invention.
Claims (12)
1. the device of insulating medium performance in a kinetic measurement solidification process, it comprises, positive electrode, negative electrode, insulating medium performance measurement instrument, it is characterized in that, also comprise vessel, well heater, thermometer, described well heater is placed in the bottom of vessel, thermometer is placed in centre in vessel, distance between positive electrode and negative electrode is the thickness of insulating medium to be measured, described insulating medium to be measured injects between positive electrode and negative electrode, and insulating medium to be measured is heating and curing as solid dielectric insulation by described well heater gradually.
2. the device of insulating medium performance in a kind of kinetic measurement solidification process according to claim 1, it is characterized in that, described vessel top is provided with fixed mount, and described fixed mount is transparent cover plate.
3. the device of insulating medium performance in a kind of kinetic measurement solidification process according to claim 2, it is characterized in that, described vessel are metalware, and described vessel are simultaneously as negative electrode.
4. the device of insulating medium performance in a kind of kinetic measurement solidification process according to claim 1, it is characterized in that, be also provided with temperature control equipment, described temperature control equipment is for regulating the heating-up temperature of well heater.
5. the device of insulating medium performance in a kind of kinetic measurement solidification process according to claim 1, is characterized in that, the distance energy up-down adjustment between described positive electrode and negative electrode.
6. the device of insulating medium performance in a kind of kinetic measurement solidification process according to any one of claim 1 to 5, it is characterized in that, described insulating medium performance measurement instrument is megger.
7. the device of insulating medium performance in a kind of kinetic measurement solidification process according to any one of claim 1 to 5, it is characterized in that, described insulating medium performance measurement instrument is capacitance meter.
8. the device of insulating medium performance in a kind of kinetic measurement solidification process according to any one of claim 1 to 5, it is characterized in that, described insulating medium performance measurement instrument is electric bridge.
9. the device of insulating medium performance in a kind of kinetic measurement solidification process according to any one of claim 1 to 5, is characterized in that, preset thermopair in insulating medium to be measured, records temperature curve during medium reaction.
10. the device of insulating medium performance in a kind of kinetic measurement solidification process according to claim 9, it is characterized in that, described thermopair is Pt100 resistance.
The method of insulating medium performance in 11. 1 kinds of kinetic measurement solidification processs, insulating medium to be poured in metalware and is covered positive electrode bottom surface 2 ~ 4mm by (1), starts well heater 10;
(2) be heated rapidly to the temperature that regulation requires, start writing time, temperature and resistance value, determine the test interval according to the speed of resistance change and carry out above record, until resistance value is stablized constant.
The method of insulating medium performance in 12. kinetic measurement solidification processs according to claim 11, is characterized in that: preset Pt100 resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210144890.4A CN102636697B (en) | 2012-05-11 | 2012-05-11 | Device for dynamically measuring performance of insulating medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210144890.4A CN102636697B (en) | 2012-05-11 | 2012-05-11 | Device for dynamically measuring performance of insulating medium |
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| CN102636697A CN102636697A (en) | 2012-08-15 |
| CN102636697B true CN102636697B (en) | 2015-02-04 |
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| CN201210144890.4A Active CN102636697B (en) | 2012-05-11 | 2012-05-11 | Device for dynamically measuring performance of insulating medium |
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| CN107907746B (en) * | 2017-10-25 | 2020-03-20 | 营口康辉石化有限公司 | Method for testing polymer melt resistivity |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2214609C2 (en) * | 2001-09-04 | 2003-10-20 | Федеральное государственное унитарное предприятие Научно-исследовательский институт электронно-механических приборов | Procedure measuring components of complex impedance of two-terminal network and voltage across it |
| CN201449420U (en) * | 2009-05-15 | 2010-05-05 | 中电电气集团有限公司 | Device for measuring dielectric loss of insulating material for transformer |
| CN202119744U (en) * | 2011-06-17 | 2012-01-18 | 上海沪光变压器有限公司 | Simple testing device for transformer oil medium wastage rate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04315062A (en) * | 1991-04-11 | 1992-11-06 | Rohm Co Ltd | Method for measuring resistance value of resistor |
| JP4113949B2 (en) * | 2003-08-11 | 2008-07-09 | 独立行政法人産業技術総合研究所 | Electrical conductivity measuring cell and measuring method thereof |
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- 2012-05-11 CN CN201210144890.4A patent/CN102636697B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2214609C2 (en) * | 2001-09-04 | 2003-10-20 | Федеральное государственное унитарное предприятие Научно-исследовательский институт электронно-механических приборов | Procedure measuring components of complex impedance of two-terminal network and voltage across it |
| CN201449420U (en) * | 2009-05-15 | 2010-05-05 | 中电电气集团有限公司 | Device for measuring dielectric loss of insulating material for transformer |
| CN202119744U (en) * | 2011-06-17 | 2012-01-18 | 上海沪光变压器有限公司 | Simple testing device for transformer oil medium wastage rate |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-61975A 2005.03.10 * |
| JP特开平4-315062A 1992.11.06 * |
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