CN207924076U - A kind of detection SF6The device of insulation defect - Google Patents
A kind of detection SF6The device of insulation defect Download PDFInfo
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- CN207924076U CN207924076U CN201820382958.5U CN201820382958U CN207924076U CN 207924076 U CN207924076 U CN 207924076U CN 201820382958 U CN201820382958 U CN 201820382958U CN 207924076 U CN207924076 U CN 207924076U
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Abstract
The utility model embodiment discloses detection SF6The device of insulation defect includes：Testing transformer, tank body, high-field electrode and low-field electrode；Testing transformer is connected with the high-field electrode on the top for being set to tank body；The bottom end of tank body is provided with low-field electrode；High-field electrode and low-field electrode are opposite；Tank body offers thief hatch；Tank body is for placing SF6Insulation defect model, high-field electrode are used to introduce the high voltage of testing transformer generation.In the present embodiment, SF is pre-set in tank interior6Insulation defect model applies high voltage by testing transformer to the high-field electrode in tank body so that defect model shelf depreciation, and then take SF in thief hatch6Feature decomposition object can be realized and carry out comprehensive study to a variety of shelf depreciation affecting parameters.
Description
Technical field
The utility model is related to detect SF6Insulation defect field more particularly to a kind of detection SF6The device of insulation defect.
Background technology
The SF such as gas insulated combined electrical equipment (gas insulated switchgear, GIS)6(sulfur hexafluoride) electrical equipment
Because the advantages that its floor space is small, reliability is high and the time between overhauls(TBO) is long, is used widely in the power system[1-3].It is same with this
When, with SF6The increase of the electric equipment operation time limit and manufacturer the equipment event caused by design, the defect of manufacture view
Barrier is also more and more.
In order to ensure the safe and reliable operation of electric system, to SF such as GIS6The latency defects detection of inside electric appliance
It is particularly important.Sulfur dioxide (SO2), hydrogen sulfide (H2S), carbon tetrafluoride (CF4), vikane (SO2F2), thionyl fluoride (SOF2) and
Carbon monoxide (CO) etc. is the SF for more commonly judging equipment fault6Feature decomposition object utilizes hydrogen fluoride (HF), carbon disulfide
(CS2), ten fluorine one aoxidize two sulphur (S2OF10) and SOF4Judge that the possibility of equipment fault is also increasing etc. other decomposition products.
But up to the present still without a kind of very perfect sulfur hexafluoride electrical equipment Defect Modes based on physical change
The experimental provision of quasi- test.
Utility model content
The utility model discloses a kind of detection SF6The device of insulation defect, solve does not have also a kind of experiment to fill at present
The technical issues of setting the sulfur hexafluoride electrical equipment defects simulation test that can be implemented in physical change.
The utility model provides a kind of detection SF6The device of insulation defect, including：Testing transformer, tank body, high-voltage electricity
Pole and low-field electrode；
The testing transformer is connected with the high-field electrode on the top for being set to the tank body；
The bottom end of the tank body is provided with the low-field electrode；
The high-field electrode and the low-field electrode are opposite；
The tank body offers thief hatch；
The tank body is for placing SF6Insulation defect model, the high-field electrode is for introducing the testing transformer production
Raw high voltage.
Preferably, the tank body is convex architecture.
Preferably, a kind of detection SF that the utility model embodiment provides6The device of insulation defect further includes：First high pressure
Casing and the second bushing；
The output end of the testing transformer is connected with one end of first bushing；
The other end of first bushing is connected by current-limiting resistance with one end of second bushing；
The other end of second bushing is connected with the top of the tank body of convex architecture.
Preferably, the top of the tank body of the high-field electrode and convex architecture is detachably connected.
Preferably, the bottom end of the tank body offers outlet, and the outlet is used for the low-field electrode from described
It draws the bottom end of tank body.
Preferably, the low-field electrode is connect by epoxy resin with the outlet.
Preferably, the tank body is provided with watch window, the watch window and the low-field electrode, the high-field electrode
Relatively.
Preferably, the tank body offers air inlet, and the air inlet is used to be filled with SF to the tank body6Gas.
Preferably, the thief hatch is for connecting sampling conduit.
Preferably, a kind of detection SF that the utility model embodiment provides6The device of insulation defect further includes：Vacuum pump and
Pressure gauge；
The vacuum pump and the pressure gauge are connected on the sampling conduit.
As can be seen from the above technical solutions, the utility model embodiment has the following advantages：
The utility model provides a kind of detection SF6The device of insulation defect includes：Testing transformer, tank body, high-voltage electricity
Pole and low-field electrode；Testing transformer is connected with the high-field electrode on the top for being set to tank body；The bottom end of tank body is provided with low pressure
Electrode；High-field electrode and low-field electrode are opposite；Tank body offers thief hatch；Tank body is for placing SF6Insulation defect model, high pressure
Electrode is used to introduce the high voltage of testing transformer generation.In the present embodiment, SF is pre-set in tank interior6Insulation defect mould
Type applies high voltage by testing transformer to the high-field electrode in tank body so that defect model shelf depreciation, and then sampling
Mouth takes SF6Feature decomposition object can be realized and carry out comprehensive study to a variety of shelf depreciation affecting parameters.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of detection SF provided in the utility model embodiment6The structural schematic diagram of the device of insulation defect；
Wherein, it is marked in figure as follows：
1. 2. tank body of testing transformer, 3. high-field electrode, 4. low-field electrode, 5. first bushing, 6. second high pressing sleeve
12. vacuum pump of pipe 7. outlet, 8. watch window, 9. air inlet, 10. thief hatch, 11. sampling conduit, 13. pressure gauge 14.
First 15. second detection mouth of detection mouth, 16. current-limiting resistance
Specific implementation mode
The utility model embodiment discloses a kind of device of detection SF6 insulation defects, and solve does not have one kind also at present
Experimental provision can be implemented in the technical issues of sulfur hexafluoride electrical equipment defects simulation test of physical change.
Referring to Fig. 1, an a kind of implementation of the device of the detection SF6 insulation defects provided in the utility model embodiment
Example include：Testing transformer 1, tank body 2, high-field electrode 3 and low-field electrode 4.
Testing transformer 1 and the high-field electrode 3 on the top for being set to tank body 2 connect, and the bottom end of tank body 2 is provided with low tension
Pole 4, high-field electrode 3 and low-field electrode 4 are opposite, and tank body 2 offers thief hatch 10.
Wherein, tank body 2 is convex architecture, for placing SF6Insulation defect model, high-field electrode 3 become for introducing experiment
The high voltage that depressor 1 generates.
It should be noted that the testing transformer 1 in the present embodiment is the halo-free transformer of YDTW-30kVA/150kV power frequencies
(rated voltage partial discharge is less than 5pC), high pressure rated voltage 150kV, low-voltage rated voltage 400V, rated capacity 5kVA, short circuit
Voltage percentage is 6.5%.
Tank body 2 is made of stainless steel material, inflatable to 1MPa, meets the requirement of practical electrical equipment rated pressure.Tank
Body volume is 70L, in the SF for being filled with 0.4MPa6Multiple gas sampling is carried out after gas, in experiment will not be to tank interior SF6
Pressure environment causes to significantly affect.The defect of pre-production can be positioned in the tank body, by the voltage for adjusting testing transformer 1
So that rejected region is generated shelf depreciation, and then detects the type and content for decomposing gas.
In the present embodiment, detection SF6The device of insulation defect further includes：First bushing 5 and the second high pressing sleeve
Pipe 6.
One end of the output end of testing transformer and the first bushing 5 connects, and the other end of the first bushing 5 passes through
Current-limiting resistance 16 is connected with one end of the second bushing 6, the other end of the second bushing 6 and the tank body 2 of convex architecture
Top connects.
The High voltage output of testing transformer 1 terminates current-limiting resistance R=10k Ω, ensures the whole system in test product flashover
Safety.In the present embodiment, testing transformer 1 generates high voltage, and high voltage is applied on the second bushing 6, the
Two bushings again will be on high voltage induction to high-field electrode.
In the present embodiment, high-field electrode 3 and the top of the tank body 2 of convex architecture are detachably connected, and the bottom end of tank body 2 is opened
Equipped with outlet 7, outlet 7 is used to draw low-field electrode 4 from the bottom end of tank body 2, low-field electrode 4 by epoxy resin with draw
7 connection of outlet.
It should be noted that low voltage motor 4 has part low-field electrode to expose tank body by outlet through outlet 7.
And in the present embodiment, high-field electrode, low-field electrode are to be detachably connected, therefore may be implemented to two electrodes with tank body
Distance regulation and control, test equipped with pin electrode, ball electrode, plate electrode, stick electrode etc., can carry out a variety of electrode types as needed
Experiment.
In the present embodiment, tank body 2 is provided with watch window 8, and watch window 8 is opposite with low-field electrode 3, high-field electrode 4.
It is installed with suprasil observation panel before and after tank body 2, the discharged condition of tank interior can be observed by ultraviolet device.
In the present embodiment, tank body 2 offers air inlet 9, and air inlet 9 is used to be filled with SF to tank body6It gas and can realize
To SF6The adjusting of gas, thief hatch 10 are connected with vacuum pump 12 and pressure gauge for connecting sampling conduit 11 on sampling conduit 11
13.The first detection mouth 14 and the second detection mouth 15 are offered on sampling conduit 11, wherein the first detection mouth 14 is for carrying out HF inspections
It surveys, the second detection mouth is analyzed for remaining characteristic component.
The specific operation process of device that the utility model embodiment provides is：Adjust test voltage, electrode distance and SF6
(pour SF from air inlet6Gas number) air pressure, make insulation defect model discharge, from the sampling conduit of right end test six
Sulfur fluoride (SF6) generate characteristic component.
It is a variety of that needle point, needle plate, free metal particle and insulator creeping discharge etc. can be arranged in the utility model embodiment
Simulated defect type can continuously adjust test voltage, electrode distance and SF6Air pressure allows to a variety of shelf depreciation affecting parameters
Carry out comprehensive study.
Above to a kind of detection SF provided by the utility model6The device of insulation defect is described in detail, for
Those of ordinary skill in the art, based on the idea of the embodiment of the present invention, in specific embodiments and applications
It will change, in conclusion the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of detection SF6The device of insulation defect, which is characterized in that including：Testing transformer, tank body, high-field electrode and low pressure
Electrode；
The testing transformer is connected with the high-field electrode on the top for being set to the tank body；
The bottom end of the tank body is provided with the low-field electrode；
The high-field electrode and the low-field electrode are opposite；
The tank body offers thief hatch；
The tank body is for placing SF6Insulation defect model, the high-field electrode are used to introduce the height that the testing transformer generates
Voltage.
2. detection SF according to claim 16The device of insulation defect, which is characterized in that the tank body is convex architecture.
3. detection SF according to claim 26The device of insulation defect, which is characterized in that further include：First bushing
With the second bushing；
The output end of the testing transformer is connected with one end of first bushing；
The other end of first bushing is connected by current-limiting resistance with one end of second bushing；
The other end of second bushing is connected with the top of the tank body of convex architecture.
4. detection SF according to claim 36The device of insulation defect, which is characterized in that the high-field electrode and convex knot
The top of the tank body of structure is detachably connected.
5. detection SF according to claim 46The device of insulation defect, which is characterized in that the bottom end of the tank body offers
Outlet, the outlet are used to draw the low-field electrode from the bottom end of the tank body.
6. detection SF according to claim 56The device of insulation defect, which is characterized in that the low-field electrode passes through epoxy
Resin is connect with the outlet.
7. detection SF according to claim 16The device of insulation defect, which is characterized in that the tank body is provided with observation window
Mouthful, the watch window is opposite with the low-field electrode, the high-field electrode.
8. detection SF according to claim 16The device of insulation defect, which is characterized in that the tank body offers air inlet
Mouthful, the air inlet is used to be filled with SF to the tank body6Gas.
9. detection SF according to claim 86The device of insulation defect, which is characterized in that the thief hatch is adopted for connecting
Sample pipeline.
10. detection SF according to claim 96The device of insulation defect, which is characterized in that further include：Vacuum pump and pressure
Table；
The vacuum pump and the pressure gauge are connected on the sampling conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820382958.5U CN207924076U (en) | 2018-03-21 | 2018-03-21 | A kind of detection SF6The device of insulation defect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820382958.5U CN207924076U (en) | 2018-03-21 | 2018-03-21 | A kind of detection SF6The device of insulation defect |
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| Publication Number | Publication Date |
|---|---|
| CN207924076U true CN207924076U (en) | 2018-09-28 |
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ID=63595922
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820382958.5U Active CN207924076U (en) | 2018-03-21 | 2018-03-21 | A kind of detection SF6The device of insulation defect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114924173A (en) * | 2021-11-15 | 2022-08-19 | 合肥工业大学 | Transformer oil arc discharge observation and gas collection device |
| CN115308553A (en) * | 2022-09-14 | 2022-11-08 | 常州博瑞电力自动化设备有限公司 | Gas insulation test equipment |
-
2018
- 2018-03-21 CN CN201820382958.5U patent/CN207924076U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114924173A (en) * | 2021-11-15 | 2022-08-19 | 合肥工业大学 | Transformer oil arc discharge observation and gas collection device |
| CN115308553A (en) * | 2022-09-14 | 2022-11-08 | 常州博瑞电力自动化设备有限公司 | Gas insulation test equipment |
| CN115308553B (en) * | 2022-09-14 | 2023-08-04 | 常州博瑞电力自动化设备有限公司 | Gas insulation test equipment |
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