CN203572918U - Oil paper insulation breakdown intensity experiment device - Google Patents
Oil paper insulation breakdown intensity experiment device Download PDFInfo
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- CN203572918U CN203572918U CN201320744614.1U CN201320744614U CN203572918U CN 203572918 U CN203572918 U CN 203572918U CN 201320744614 U CN201320744614 U CN 201320744614U CN 203572918 U CN203572918 U CN 203572918U
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- 238000009413 insulation Methods 0.000 title claims abstract description 51
- 238000002474 experimental method Methods 0.000 title abstract description 7
- 230000015556 catabolic process Effects 0.000 title abstract description 5
- 239000000123 paper Substances 0.000 claims abstract description 52
- 230000001050 lubricating effect Effects 0.000 claims description 49
- 239000011521 glass Substances 0.000 claims description 25
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 37
- 230000005684 electric field Effects 0.000 abstract description 7
- 239000002131 composite material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011087 paperboard Substances 0.000 abstract 6
- 230000000052 comparative effect Effects 0.000 abstract 1
- 230000032683 aging Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model designs an oil paper insulation breakdown intensity experiment device. The oil paper insulation breakdown intensity experiment device comprises an oil cup, high voltage electrodes, low voltage electrodes, a fixing support and a paperboard platform, one terminals of the high voltage electrodes are used for connecting high voltage power supplies, the other terminals of the high voltage electrodes penetrate through a cup wall of the oil cup and are connected with one terminals of the low voltage electrodes arranged in the oil cup, the other terminals of the low voltage electrodes are connected to the ground, the high voltage electrodes and the low voltage electrodes are symmetrically arranged at two sides of the oil cup, the fixing supporting is arranged outside the cup wall of the oil cup, the fixing support above a cup opening of the oil cup is also provided with a paperboard adjusting device for fixing the paperboard platform, one end of the paperboard platform is connected with the paperboard adjusting device, and the other end of the paperboard platform is positioned in a gap of the two low voltage electrodes arranged in the oil cup. According to the oil paper insulation breakdown intensity experiment device, complicated steps for adjusting distances and proportions in conventional oil paper insulation tests are simplified, the width of oil clearance and the proportion of oil paper can be flexibly and conveniently adjusted, the device is applicable to withstand voltage comparative tests in a direct current electric field, an alternating current or an alternating current-direct current composite electric field, the innovative operation concept and good test foundation are provided for oil paper insulation experiments, the structure is simple, the operation is convenient, and test results indicate that good test effects can be obtained.
Description
Technical field
The utility model relates to insulation of electrical installation on-line monitoring and fault diagnosis field, is particularly a kind ofly convenient to oil clearance width and all experimental provisions of adjustable transformer oil paper insulation disruptive strength of oilpaper ratio under direct current, interchange and alternating current-direct current compound field.
Background technology
Power transformer, as the core of energy conversion in delivery of electrical energy and delivery process, is the equipment of most important in equipment safety operation and most critical.The major accident of transformer can cause the interruption of electric power supply, and causes huge economic loss.Research shows, the transformer fault that transformer is caused by interior Insulation Problems accounts for major part.Transformer Oil-Paper Insulation is the important component part of insulation in it, the distortion that paper oil insulation medium inside will cause internal electric field to distribute due to the accumulation of space charge, serious electric field distortion will cause the puncturing with aging of Oil-Paper Insulation, thereby threatens the safety and reliability of operating transformer.
And in DC transmission system, converter power transformer is as one of most important power equipment, the composite insulation structure that in it, insulation adopts transformer oil and insulating paper to form mostly, puncturing with aging of paper oil insulation material will directly affect the safety and reliability of insulation system; In addition, converter transformer valve-side major insulation had both been born whole electric field actions that AC transformer bears and the electric field action of trial voltage, also to bear DC electric field effect in normal work simultaneously, while having an accident or the effect of reversal of poles voltage, therefore its insulation system need bear alternating current-direct current compound field.Oil-paper combination insulation is typical laminated insulation structure, its breakdown characteristics depends on voltage distribution relation and the oilpaper distribution proportion relation of compound field in transformer oil and immersion oil cardboard, therefore for analogue transformer operating condition better, in test, should apply direct current, interchange and alternating current-direct current compound field, by change oil clearance width, oilpaper ratio, carry out disruptive strength test, for transformer actual motion provides technical foundation.
Utility model content
In view of this, technical problem to be solved in the utility model is to provide a kind of paper oil insulation disruptive strength experimental provision.
The purpose of this utility model is the experimental provision of the adjustable paper oil insulation disruptive strength test electrode of a kind of oil clearance width of proposition and oilpaper ratio.
The purpose of this utility model is achieved through the following technical solutions:
A kind of paper oil insulation disruptive strength experimental provision that the utility model provides, comprises lubricating cup, high-field electrode, low-field electrode, fixed support and cardboard platform;
Described high-field electrode one end is for being connected with high-voltage power supply, and the other end runs through lubricating cup wall of cup and is connected with the low-field electrode one end that is arranged at lubricating cup inside, the other end ground connection of described low-field electrode;
Described high-field electrode and low-field electrode are symmetricly set in the both sides of lubricating cup;
Described fixed support is arranged at lubricating cup wall of cup outside; Described fixed support is positioned at lubricating cup rim of a cup top and is also provided with the cardboard regulating device for fixing cardboard platform;
Described cardboard platform one end is connected with cardboard regulating device, and the other end is arranged at the gap of two low-field electrodes that are positioned at lubricating cup inside.
Further, described cardboard regulating device is the turn adjusting screw(rod) that is symmetricly set in fixed support both sides, and described turn adjusting screw(rod) is formed for the clamping end of fixing cardboard platform in lubricating cup inside.
Further, described cardboard platform comprises stator, lower stator and U-shaped pad;
Fixed sheet comprises two upper organic glass rectangular sheets that are formed by connecting through bolt, and described upper organic glass rectangular sheet outside is by clamping turn screw rod end, fits with U-shaped pad top in described upper organic glass rectangular sheet inner side;
Described lower stator comprises two lower organic glass rectangular sheets that are formed by connecting through nut, and described lower organic glass rectangular sheet inner side and the laminating of U-shaped pad bottom are unsettled outside described lower organic glass rectangular sheet;
Described U-shaped gasket shape is inverted U-shaped, opening down.
Further, described high-field electrode runs through lubricating cup wall of cup by axostylus axostyle, and described axostylus axostyle is placed oil-leakage-prevention rubber band through in the hole of wall of cup; Described low-field electrode runs through lubricating cup wall of cup by axostylus axostyle, and described axostylus axostyle is placed oil-leakage-prevention rubber band through in the hole of wall of cup.
Further, described fixed support internal diameter equates with lubricating cup external diameter, is placed on lubricating cup outer wall projection, higher than lubricating cup open height.
Further, the axostylus axostyle of described high-field electrode and low-field electrode arranges axostylus axostyle fixed screw near wall of cup side, described axostylus axostyle inner hollow place electrodes span scale; Described electrode span scale outboard end coupling nut, and screw by screw thread at axostylus axostyle outer openings place.
Further, described fixed support is being provided with bracket holes higher than lubricating cup open height place, and described bracket holes arranges internal thread;
The described turn adjusting screw(rod) body of rod arranges external thread and is closely connected with bracket holes, by turn screw rod, moves upper stator;
Fixed sheet center is provided with fixing film perforation, and described fixing film perforation is provided with internal thread, and is connected by screw threads for fastening with turn adjusting screw(rod).
Further, on the described turn adjusting screw(rod) body of rod, be carved with a millimeter scale strip; Described lubricating cup cup is fired and is formed by stupalith;
Described high-field electrode, low-field electrode, axostylus axostyle, turn adjusting screw(rod) are made by copper product;
Described fixed support, upper stator, lower stator and bolt are made by organic glass;
Described U-shaped pad is made by epoxide resin material.
The utility model has the advantage of: the utility model provides a kind of paper oil insulation disruptive strength experimental provision.This device has been simplified the loaded down with trivial details step of adjusting distance and ratio in paper oil insulation test in the past, for paper oil insulation experiment provides the realization approach of innovation and good experimental basis; This apparatus structure is simple, easy to operate, and test findings shows to obtain good test effect, and the advantage of this device is specific as follows:
1. can adjust flexibly and easily oil clearance width, for the contrast tests such as the disruptive strength of oil-paper combination insulation under different oil clearance width provide good experimental basis.
2. can regulate flexibly and easily oilpaper ratio, for the contrast tests such as the oil-paper combination insulation disruptive strength under different oilpaper ratios provide good experimental basis.
3. this device is applicable to the disruptive strength test under interchange, direct current and alternating current-direct current Composite Field, for the disruptive strength test under different alternating current-direct current composition electric fields provides good experimental basis.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is the adjustable paper oil insulation disruptive strength test electrode test unit of oil clearance width and oilpaper ratio;
Fig. 2 is the cardboard platform structure schematic diagram in test electrode test unit;
Fig. 3 is the adjustable paper oil insulation disruptive strength test electrode test method process flow diagram of oil clearance width and oilpaper ratio.
Wherein, 1, lubricating cup; 2, axostylus axostyle fixed screw; 3, fixed support; 4, turn adjusting screw(rod); 5, low-field electrode; 6, lower stator; 7, upper stator; 8, filling pad; 9, electrode span scale.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail; Should be appreciated that preferred embodiment is only for the utility model is described, rather than in order to limit protection domain of the present utility model.
Fig. 1 is the adjustable paper oil insulation disruptive strength test electrode test unit of oil clearance width and oilpaper ratio, and Fig. 2 is the cardboard platform structure schematic diagram in test electrode test unit, and wherein, 1 is lubricating cup, by dedicated ceramic, is built and is formed; 2 is the axostylus axostyle fixed screw of electrode, by copper product, is made; 3 is fixed support, by pmma material, is made, and its internal diameter equates with lubricating cup external diameter; 4 is turn adjusting screw(rod), by copper product, is made; 5 is low-field electrode, by copper product, is made, and structural parameters need meet GB requirement; 6 is lower stator, by two organic glass thin slices, through bolt (for organic glass material), is formed by connecting; 7 is upper stator, by two organic glass thin slices, through bolt (for organic glass material), is formed by connecting; 8 is " U " type pad, for epoxide resin material, machining precision need meet the specification requirement of standard component, as shown in the figure: the experimental provision of the paper oil insulation disruptive strength test electrode that the oil clearance width that the utility model provides and oilpaper ratio are adjustable, electrode assembly in use oil clearance width and oilpaper ratio adjustable, comprise lubricating cup, high-field electrode, low-field electrode, fixed support and cardboard platform;
Described high-field electrode one end is for being connected with high-voltage power supply, and the other end runs through lubricating cup wall of cup and is connected with the low-field electrode one end that is arranged at lubricating cup inside, the other end ground connection of described low-field electrode;
Described high-field electrode and low-field electrode are symmetricly set in the both sides of lubricating cup; Low-field electrode is high-field electrode to lateral electrode;
Described fixed support is arranged at lubricating cup wall of cup outside; Described fixed support is positioned at lubricating cup rim of a cup top and is also provided with the cardboard regulating device for fixing cardboard platform;
Described cardboard platform one end is connected with cardboard regulating device, and the other end is arranged at the gap of two low-field electrodes that are positioned at lubricating cup inside.
Described cardboard regulating device is the turn adjusting screw(rod) that is symmetricly set in fixed support both sides, and described turn adjusting screw(rod) is formed for the clamping end of fixing cardboard platform in lubricating cup inside.
Described cardboard platform comprises stator, lower stator and U-shaped pad;
Fixed sheet comprises two upper organic glass rectangular sheets that are formed by connecting through bolt, and described upper organic glass rectangular sheet outside is by clamping turn screw rod end, fits with U-shaped pad top in described upper organic glass rectangular sheet inner side;
Described lower stator comprises two lower organic glass rectangular sheets that are formed by connecting through nut, and described lower organic glass rectangular sheet inner side and the laminating of U-shaped pad bottom are unsettled outside described lower organic glass rectangular sheet;
Described U-shaped gasket shape is inverted U-shaped, opening down.
Described high-field electrode runs through lubricating cup wall of cup by axostylus axostyle, and described axostylus axostyle is placed oil-leakage-prevention rubber band through in the hole of wall of cup; Described low-field electrode runs through lubricating cup wall of cup by axostylus axostyle, and described axostylus axostyle is placed oil-leakage-prevention rubber band through in the hole of wall of cup.
Described fixed support internal diameter equates with lubricating cup external diameter, is placed on lubricating cup outer wall projection, higher than lubricating cup open height.
The axostylus axostyle of described high-field electrode and low-field electrode arranges axostylus axostyle fixed screw near wall of cup side, described axostylus axostyle inner hollow place electrodes span scale 9; Described electrode span scale outboard end coupling nut, and screw by screw thread at axostylus axostyle outer openings place.
Described fixed support is being provided with bracket holes higher than lubricating cup open height place, and described bracket holes arranges internal thread;
The described turn adjusting screw(rod) body of rod arranges external thread and is closely connected with bracket holes, by turn screw rod, moves upper stator;
Fixed sheet center is provided with fixing film perforation, and described fixing film perforation is provided with internal thread, and is connected by screw threads for fastening with turn adjusting screw(rod).
On the described turn adjusting screw(rod) body of rod, be carved with a millimeter scale strip; Described lubricating cup cup is fired and is formed by testing dedicated ceramic material;
Described high-field electrode, low-field electrode, axostylus axostyle, turn adjusting screw(rod) are made by copper product;
Described fixed support, upper stator, lower stator and bolt are made by organic glass;
Described U-shaped pad is made by epoxide resin material.
Fig. 3 is the adjustable paper oil insulation disruptive strength test electrode test method process flow diagram of oil clearance width and oilpaper ratio, as shown in the figure, the experimental technique of the paper oil insulation disruptive strength test electrode that the oil clearance width that the utility model embodiment provides and oilpaper ratio are adjustable, comprises the following steps:
S1: dried transformer oil and insulating paper are put into aging casing and carry out aging;
S2: from ageing oven, take out oil sample and pour in lubricating cup, standing after it is even, carry out the broad-adjustable oil-paper combination insulation disruptive strength test of oil clearance;
S3: insulating paper is fixedly inserted to cardboard platform, carry out the adjustable oil-paper combination insulation disruptive strength test of oil clearance width and oilpaper ratio.
In described step S1, transformer oil and insulating paper are dry and ageing process is specific as follows: first by insulating paper in 90 ℃/50Pa environment dry 48 hours, then insulating paper is put into transformer oil at 40 ℃/50Pa environment degassed 48 hours, then insulating paper is put into ageing oven and carry out aging; Required transformer oil is put into sealable tank, after extracting vacuum, put into ageing oven and carry out aging;
In described step S2, the broad-adjustable disruptive strength test process of oil clearance is specific as follows: the axostylus axostyle fixed screw of first outwarding winding changes low-field electrode clearance distance, described clearance distance is read by electrode span scale, with upper and lower stator fixed insulation paper top, bottom respectively, by the fixing upper stator in clamping end of turn adjusting screw(rod); Again whole device is put into high-pressure test platform, after connecting circuit, this device is applied to high pressure; Progressively improve and apply voltage, after device interior oil gap punctures, the magnitude of voltage that record now applied; Disconnecting circuit after off-test, the axostylus axostyle fixed screw of again outwarding winding, changes electrode distance, changes pattern, tests the oil-paper combination insulation disruptive strength under this oil clearance width;
In described step S3, the adjustable oil-paper combination insulation disruptive strength test process of oil clearance width and oilpaper ratio is specific as follows: get oil-immersed insulating paper, with upper and lower stator fixed insulation paper top, bottom respectively, by the fixing upper stator in clamping end of turn adjusting screw(rod), again whole device is put into high-pressure test platform, after connecting circuit, this device is applied to high pressure; Progressively improve and apply voltage, after device interior oil paper insulation punctures, the magnitude of voltage that record now applied; Disconnecting circuit after off-test, changes multilayer oil-immersed insulating paper, and uses U-shaped pad to adjust after the spacing of cardboard platform, and mobile turn adjusting screw(rod), by stepping up the fixing upper stator in end, is tested the oil-paper combination insulation disruptive strength under this oilpaper ratio.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (8)
1. a paper oil insulation disruptive strength experimental provision, is characterized in that: comprise lubricating cup, high-field electrode, low-field electrode, fixed support and cardboard platform;
Described high-field electrode one end is for being connected with high-voltage power supply, and the other end runs through lubricating cup wall of cup and is connected with the low-field electrode one end that is arranged at lubricating cup inside, the other end ground connection of described low-field electrode;
Described high-field electrode and low-field electrode are symmetricly set in the both sides of lubricating cup;
Described fixed support is arranged at lubricating cup wall of cup outside; Described fixed support is positioned at lubricating cup rim of a cup top and is also provided with the cardboard regulating device for fixing cardboard platform;
Described cardboard platform one end is connected with cardboard regulating device, and the other end is arranged at the gap of two low-field electrodes that are positioned at lubricating cup inside.
2. paper oil insulation disruptive strength experimental provision according to claim 1, it is characterized in that: described cardboard regulating device is the turn adjusting screw(rod) that is symmetricly set in fixed support both sides, described turn adjusting screw(rod) is formed for the clamping end of fixing cardboard platform in lubricating cup inside.
3. paper oil insulation disruptive strength experimental provision according to claim 1, is characterized in that: described cardboard platform comprises stator, lower stator and U-shaped pad;
Fixed sheet comprises two upper organic glass rectangular sheets that are formed by connecting through bolt, and described upper organic glass rectangular sheet outside is by clamping turn screw rod end, fits with U-shaped pad top in described upper organic glass rectangular sheet inner side;
Described lower stator comprises two lower organic glass rectangular sheets that are formed by connecting through nut, and described lower organic glass rectangular sheet inner side and the laminating of U-shaped pad bottom are unsettled outside described lower organic glass rectangular sheet;
Described U-shaped gasket shape is inverted U-shaped, opening down.
4. paper oil insulation disruptive strength experimental provision according to claim 1, is characterized in that: described high-field electrode runs through lubricating cup wall of cup by axostylus axostyle, and described axostylus axostyle is placed oil-leakage-prevention rubber band through in the hole of wall of cup; Described low-field electrode runs through lubricating cup wall of cup by axostylus axostyle, and described axostylus axostyle is placed oil-leakage-prevention rubber band through in the hole of wall of cup.
5. paper oil insulation disruptive strength experimental provision according to claim 1, is characterized in that: described fixed support internal diameter equates with lubricating cup external diameter, is placed on lubricating cup outer wall projection, higher than lubricating cup open height.
6. paper oil insulation disruptive strength experimental provision according to claim 1, is characterized in that: the axostylus axostyle of described high-field electrode and low-field electrode arranges axostylus axostyle fixed screw near wall of cup side, described axostylus axostyle inner hollow place electrodes span scale; Described electrode span scale outboard end coupling nut, and screw by screw thread at axostylus axostyle outer openings place.
7. paper oil insulation disruptive strength experimental provision according to claim 1, is characterized in that: described fixed support is being provided with bracket holes higher than lubricating cup open height place, and described bracket holes arranges internal thread;
The described turn adjusting screw(rod) body of rod arranges external thread and is closely connected with bracket holes, by turn screw rod, moves upper stator;
Fixed sheet center is provided with fixing film perforation, and described fixing film perforation is provided with internal thread, and is connected by screw threads for fastening with turn adjusting screw(rod).
8. paper oil insulation disruptive strength experimental provision according to claim 2, is characterized in that: on the described turn adjusting screw(rod) body of rod, be carved with a millimeter scale strip; Described lubricating cup cup is fired and is formed by stupalith;
Described high-field electrode, low-field electrode, axostylus axostyle and turn adjusting screw(rod) are made by copper product;
Described fixed support, upper stator, lower stator and bolt are made by organic glass;
Described U-shaped pad is made by epoxide resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744614.1U CN203572918U (en) | 2013-11-21 | 2013-11-21 | Oil paper insulation breakdown intensity experiment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744614.1U CN203572918U (en) | 2013-11-21 | 2013-11-21 | Oil paper insulation breakdown intensity experiment device |
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| CN203572918U true CN203572918U (en) | 2014-04-30 |
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| CN201320744614.1U Expired - Lifetime CN203572918U (en) | 2013-11-21 | 2013-11-21 | Oil paper insulation breakdown intensity experiment device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605057A (en) * | 2013-11-21 | 2014-02-26 | 国家电网公司 | Oil paper insulation breakdown intensity test apparatus and method |
| CN104101820A (en) * | 2014-07-17 | 2014-10-15 | 国网上海市电力公司 | Transformer oil/paper insulation aging experimental device and method |
| CN104698349A (en) * | 2015-01-16 | 2015-06-10 | 广东电网有限责任公司电力科学研究院 | Paper oil insulation partial discharge test device |
| CN106405359A (en) * | 2016-11-17 | 2017-02-15 | 西北核技术研究所 | Insulating oil test oil cup for 100 kV pulse voltage |
| CN106443397A (en) * | 2016-11-22 | 2017-02-22 | 桂林电力电容器有限责任公司 | Insulating liquid material tester and device |
| CN107957538A (en) * | 2018-01-03 | 2018-04-24 | 国网陕西省电力公司经济技术研究院 | The experimental method that compound field is formed inside a kind of simulation converter power transformer |
| CN108562802A (en) * | 2018-06-05 | 2018-09-21 | 重庆大学 | A method of emulation multilayer paper oil insulation mixed system space/interface charge distribution |
| CN108872817A (en) * | 2018-07-11 | 2018-11-23 | 云南电网有限责任公司电力科学研究院 | A kind of paper oil insulation bubble-discharge test device |
| CN109613405A (en) * | 2018-12-10 | 2019-04-12 | 国网山东省电力公司电力科学研究院 | A kind of oil-paper combination insulation dielectric response test device |
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2013
- 2013-11-21 CN CN201320744614.1U patent/CN203572918U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605057A (en) * | 2013-11-21 | 2014-02-26 | 国家电网公司 | Oil paper insulation breakdown intensity test apparatus and method |
| CN103605057B (en) * | 2013-11-21 | 2016-01-13 | 国家电网公司 | A kind of paper oil insulation disruptive strength experimental provision and method |
| CN104101820A (en) * | 2014-07-17 | 2014-10-15 | 国网上海市电力公司 | Transformer oil/paper insulation aging experimental device and method |
| CN104101820B (en) * | 2014-07-17 | 2016-09-21 | 国网上海市电力公司 | A kind of transformer oil/Aging of Oil-paper Insulation in Oil experimental provision and experimental technique |
| CN104698349A (en) * | 2015-01-16 | 2015-06-10 | 广东电网有限责任公司电力科学研究院 | Paper oil insulation partial discharge test device |
| CN104698349B (en) * | 2015-01-16 | 2017-04-12 | 广东电网有限责任公司电力科学研究院 | Paper oil insulation partial discharge test device |
| CN106405359A (en) * | 2016-11-17 | 2017-02-15 | 西北核技术研究所 | Insulating oil test oil cup for 100 kV pulse voltage |
| CN106443397A (en) * | 2016-11-22 | 2017-02-22 | 桂林电力电容器有限责任公司 | Insulating liquid material tester and device |
| CN107957538A (en) * | 2018-01-03 | 2018-04-24 | 国网陕西省电力公司经济技术研究院 | The experimental method that compound field is formed inside a kind of simulation converter power transformer |
| CN108562802A (en) * | 2018-06-05 | 2018-09-21 | 重庆大学 | A method of emulation multilayer paper oil insulation mixed system space/interface charge distribution |
| CN108872817A (en) * | 2018-07-11 | 2018-11-23 | 云南电网有限责任公司电力科学研究院 | A kind of paper oil insulation bubble-discharge test device |
| CN109613405A (en) * | 2018-12-10 | 2019-04-12 | 国网山东省电力公司电力科学研究院 | A kind of oil-paper combination insulation dielectric response test device |
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Granted publication date: 20140430 |