CN206321750U - It is a kind of to be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages - Google Patents
It is a kind of to be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages Download PDFInfo
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- CN206321750U CN206321750U CN201621249269.4U CN201621249269U CN206321750U CN 206321750 U CN206321750 U CN 206321750U CN 201621249269 U CN201621249269 U CN 201621249269U CN 206321750 U CN206321750 U CN 206321750U
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Abstract
It is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages the utility model discloses a kind of, negative electrode cover plate, tubular insulation cover and anode cover plate constitute a seal cavity, negative electrode is with negative electrode cover plate to be threadedly coupled, and anode is with anode cover plate to be threadedly coupled, and anode right-hand member is connected with electrical contact copper-base；The lubricating cup will form line voltage introducing as entirely through being threadedly secured on switch negative electrode on negative electrode cover plate；Anode realizes that contact is flexible coupling with switch anode by making electrical contact with copper-base, is convenient to mount and dismount.This experiment lubricating cup uses long gap broad-area electrode, directly it can be tested using the delicate level pulse voltage for forming line offer, voltage endurance capability is up to distance between 600kV, two electrodes and can easily be accommodated, and can carry out the test of the insulating oil voltage resistant under vacuum environment or high pressure gas environment.
Description
Technical field
The utility model belongs to technical field of pulse power, and being related to a kind of is used for the insulation oil test of hundred kilovolts of pulse voltages
Lubricating cup.
Background technology
In common capacitor type pulse power driving source, coaxial pulse formation line is the most frequently used high-voltage energy storage, pulse
Shaping unit part.Pulse-forming line widely uses transformer oil, glycerine, deionized water, capacitor oil, castor oil, ethylene glycol
Deng insulating oil filling to be insulated, energy storage or shaping pulse., it is necessary to according to insulating oil in the design process of pulse-forming line
Oil clearance puncture data obtain insulating oil disruptive field intensity, so as to carry out redundant safety design.
It is general that voltage-withstand test is carried out to insulating oil using standard oil cup.Reference picture 1, the insulation oil ga(u)ge commonly used in the market
Quasi- lubricating cup is using ceramic cup 1, and cup wall opposite ends are provided with copper electrode 3, and the guide rod of copper electrode 3 is polished rod, it is necessary to tightly
Determine screw 4 copper electrode 3 is fixed.Spacing is 2.5mm between a diameter of 25mm of copper electrode, electrode.Usual voltage-withstand test
Lubricating cup is mainly used in the industries such as high pressure, electric power electric, in experiment using exchange 50/60Hz or DC voltage to lubricating cup electrode
Gap carries out charging battery, so as to obtain the oily pressure voltage of experiment.Experiment is general to be carried out under atmospheric pressure environment, and ceiling voltage is general not
More than 80~100kV.
From unlike above test condition, the charging interval of current pulse-forming line is generally 10~100us magnitudes, electricity
Press as hundreds of kV~MV, insulation distance is also much larger than 2.5mm.
For liquid insulating medium, the formula approximate representation of breakdown field strength is：Wherein, Ebr
For disruptive field intensity, MV/cm；A is the part electrode area that its electric field is not more than 10% with the deviation of maximum field on electrode,
cm2；T is effective time, and μ s are defined as reaching the time of maximum field 63%, and k is constant.By formula it can be deduced that insulating oil
Oil clearance breakdown voltage it is related to the size of sample, electrode gap and charging modes (pulse charge pressure voltage is higher).Work as design
During bigger than test sample several magnitude of size, the deviation for data that its is pressure-resistant is larger.The electrode disk of existing voltage-withstand test lubricating cup is straight
Footpath and oil clearance spacing are too small, and the breakdown voltage value for testing acquisition is too low, with the actual size for forming line or actual pressure-resistant environment contracting
Than too greatly, therefore, existing voltage-withstand test lubricating cup can not provide effectively reliable data for the design of Large-scale High-Pressure pulse-forming line
Support.
Utility model content
The problem of the utility model is solved, which is that offer is a kind of, is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, should
Lubricating cup can be tested directly using the Microsecond grade pulse voltage for forming line offer, and voltage is up to hundreds of kV.
Technical solution of the present utility model be to provide it is a kind of be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages,
Including negative electrode, anode and cavity, it is particular in that：
The end face external diameter of above-mentioned negative electrode and anode is all higher than 100mm；The electric-field enhancing cylindrical in order to weaken electrode end surface, on
State negative electrode end face and anode end face is respectively provided with field intensity and homogenizes ring.
Above-mentioned cavity is seal cavity, including transparent tubular insulation cover, by removably is arranged on transparent tubular
The negative electrode cover plate and anode cover plate at insulation cover two ends, above-mentioned negative electrode are arranged on negative electrode cover plate；Above-mentioned anode is arranged on anode
On cover plate；Above-mentioned lubricating cup cavity is provided with valve.
It is preferred that, the ratio between above-mentioned negative electrode and anode end face external diameter and the distance between negative electrode and anode are 10~20.
In order to realize good coaxial of negative electrode and anode, above-mentioned negative electrode has negative electrode mating surface and perpendicular positioning ring, above-mentioned
Anode has an anode mating surface, and above-mentioned negative electrode cover plate has the first mating surface and the second mating surface, and above-mentioned anode cover plate has the
Three mating surfaces and the 4th mating surface, the screw thread at above-mentioned transparent tubular insulation cover two ends have outer cover mating surface one and outer cover respectively
Mating surface two；
First mating surface coaxial cooperation of above-mentioned negative electrode mating surface and negative electrode cover plate；Above-mentioned anode mating surface and anode cover plate
The 3rd mating surface coaxial cooperation；The second mating surface of above-mentioned outer cover mating surface one and outer cover mating surface two respectively with negative electrode cover plate
With the 4th mating surface coaxial cooperation of anode cover plate.
In order to adjust the distance between two electrodes, it is additionally provided between above-mentioned anode cover plate and anode and is available for anode axial direction
Mobile annular groove.
In order to which the utility model lubricating cup is directly connected with the switch segment electrode of driving source, above-mentioned anode and extraneous switch anode
Connection end provided with electrical contact copper-base.
Above-mentioned electrical contact copper-base is made of the thick red coppers of 0.2~0.5mm, and end is dome structure.
Above-mentioned negative electrode cover plate and the material of anode cover plate are stainless steel or other conductive materials.
For the ease of assembling, above-mentioned negative electrode and negative electrode cover plate is connected through a screw thread；Anode and the anode cover plate passes through spiral shell
Line is connected；The negative electrode cover plate, anode cover plate are connected by screw thread with transparent tubular insulation cover；The transparent tubular insulation
The material of outer cover is lucite.
The beneficial effects of the utility model are：
(1) what the utility model was provided is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, using the big face of long gap
Product electrode, voltage endurance capability may be up to 600kV, so as to reduce the test voltage of insulating oil and the contracting ratio of real work voltage, make
Voltage-withstand test data are relatively reliable effectively.
(2) what the utility model was provided is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, can be installed to electric capacity
The switch segments of type pulse power driving source are tested, because its directly application forms the Microsecond grade pulse voltage progress that line charges
Experiment, therefore obtained experimental result is higher for the insulating Design reference value of driving source.
(3) what the utility model was provided is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, and lubricating cup is sealing structure,
Pressure difference can be born inside and outside oil cover, lubricating cup can be vacuumized and reinject insulating oil, can also injected the insulating gas such as high pressure nitrogen, enter
Insulating oil voltage resistant test under horizontal high voltage gas.
(4) what the utility model was provided is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, negative electrode cover plate and anode
Cover plate is made using metal, and it is connected with the switch segment electrode of driving source, directly can introduce pulse voltage, eliminate electricity
The links such as the electric wire connection that pressure is introduced.
(5) what the utility model was provided is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, between negative electrode and anode
Distance can easily be accommodated, the test of various sizes of long gap insulating properties can be carried out, the experimental data under different gap is carried out
Amendment is compared, to obtain more accurate insulating oil voltage resistant value, the lubricating cup electrode gap adjustable range is 7~15mm.
(6) what the utility model was provided is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, in the insulation of transparent tubular
Outer cover two ends are designed with outer cover mating surface, are that negative electrode passes through the moon in order to which the high accuracy for realizing negative electrode cover plate and anode cover plate is coaxial
Pole mating surface and the realization of negative electrode cover plate are coaxial, and anode is coaxial by anode mating surface and the realization of anode cover plate, so as to finally realize
Negative electrode is good coaxial with anode, to avoid the influence of negative electrode and anode not coaxially to Electric Field Distribution, it is ensured that voltage-withstand test result
Accuracy.
(7) what the utility model was provided is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, anode and switch anode
Plate is convenient to mount and dismount by the way of contact is flexible coupling.
Brief description of the drawings
Fig. 1 is the structural representation of working standard lubricating cup in the prior art；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is installed to the structural representation of switch segments in driving source for the utility model；
Fig. 4 is the utility model negative electrode and the Local map at negative electrode cover plate mating surface；
Fig. 5 is the utility model anode and the Local map at anode cover plate mating surface；
Fig. 6 is the utility model negative electrode cover plate and the Local map at lucite outer cover mating surface.
Wherein, the ceramic cups of 1-, 2- electrode tip holders, 3- copper electrodes, 4- holding screws；5- negative electrode sealing rings, 6- negative electrode cover plates,
7- outer covers sealing ring one, 8- negative electrodes, 9- anodes, the transparent tubular insulation covers of 10-, 11- outer covers sealing ring two, 12- anode cover plates,
13- lower valves, 14- electrical contact copper-bases, 15- anode seal circles, the upper valves of 16-, 17- formation line outer barrels, 18- insulation support plates,
19- switch segments outer barrels, 20- supporting plates, 21- transmission line outer barrels, 22- switch negative electrodes, 23- switch anodes；The mating surfaces of 601- first,
The mating surfaces of 602- second；801- negative electrode mating surfaces, 802- perpendicular positioning rings, 803- negative electrode end faces, 804- field intensity homogenizes ring one；
901- anode mating surfaces, 902- anode screw threads, 903- anode end faces, 904- field intensity homogenizes ring two；1001- outer covers mating surface one,
1002- outer covers mating surface two；The mating surfaces of 1201- the 3rd, 1202- annular grooves, the mating surfaces of 1203- the 4th.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the utility model.
Referring to Fig. 2, the utility model lubricating cup, including negative electrode 8, anode 9, transparent tubular insulation cover 10, negative electrode cover plate 6,
Negative electrode sealing ring 5, outer cover sealing ring 1, outer cover sealing ring 2 11, anode cover plate 12, anode seal circle 15, electrical contact copper-base
14th, upper valve 16, lower valve 13.Transparent tubular insulation cover 10 is cylindrical shape, negative electrode cover plate 6, lucite outer cover 10 and sun
Polar cap plate 12 constitutes a closing lubricating cup cavity, and negative electrode cover plate 6 and anode cover plate 12 are threadedly secured to transparent tubular insulation
The two ends of outer cover 10, and entered respectively by outer cover sealing ring 1 and outer cover sealing ring 2 11 at the transparent two ends of tubular insulation cover 10
Row sealing.Negative electrode 8 is with negative electrode cover plate 6 to be threadedly coupled, and anode 9 is to be threadedly coupled with anode cover plate 12.Set on anode cover plate 12
There are upper valve 16 and lower valve 13, the effect of the two valves has at 2 points：One can be used for the injection and discharge of insulating oil, two
It is that gases at high pressure can be vacuumized or injected to lubricating cup.
Reference picture 2, the right-hand member of anode 9 is connected with electrical contact copper-base 14, and electrical contact copper-base 14 is using purple thick 0.2~0.5mm
Copper or other good conductive materials are made, and end is dome structure, with certain elasticity.
Reference picture 3, described lubricating cup is switched on negative electrode as entirely through the being threadedly secured in external world on negative electrode cover plate 6,
Line voltage introducing will be formed.When the switch segments outer barrel of pulse power driving source is taken apart, lubricating cup is arranged on switch negative electrode, anode
9 be hanging；When switch segments outer barrel is connected with transmission line portions closure, anode 9 is entered with switch anode by making electrical contact with copper-base 14
Row electrical connection, electrical contact copper-base 14 end can be compressed, and be flexible coupling with switch anode for contact, so that Convenient switch section outer barrel
Connection, and ensure that anode with switch anode excellent electric contact.
Specifically, reference picture 2 and Fig. 4, negative electrode 8 and negative electrode cover plate 6 using be threadedly coupled, and threaded connection can not realize compared with
High axiality, therefore, there is negative electrode mating surface 801 on negative electrode 8, it is with the first mating surface 601 on negative electrode cover plate 6 by high-precision
Spend matching relationship and carry out coaxial cooperation, to realize the good coaxial of negative electrode 8 and negative electrode cover plate 6；Sealed at two mating surfaces with negative electrode
Circle 5 is sealed；Negative electrode 8 is front and rear irremovable to be fixedly mounted；Perpendicular positioning ring 802 is additionally provided with negative electrode 8, its effect is
In order to ensure negative electrode draws bar good perpendicularity, the end that perpendicular positioning ring 802 is contacted with negative electrode cover plate 6 are kept with negative electrode cover plate 6
Face is concordant.
Reference picture 2 and Fig. 5, anode 9 are also used with anode cover plate 12 and are threadedly coupled, it is impossible to realize higher axiality.Cause
This, is also configured with anode mating surface 901 on anode 9, it is matched somebody with somebody with the 3rd mating surface 1201 on anode cover plate 12 by high accuracy
Conjunction relation carries out coaxial cooperation, to realize the good coaxial of anode 9 and anode cover plate 12；With anode seal circle 15 at two mating surfaces
Sealed；Anode 9 can be moved forward and backward by anode screw thread 902, spacing between two electrodes of regulation, in the lubricating cup between two electrodes
It is 7~15mm away from scope；There is annular groove 1202 on anode cover plate 12, to reserve mobile space to when being adjusted before and after anode 9.
Negative electrode 8 and anode 9 are broad-area electrode, and negative electrode end face 803 and the external diameter of anode end face 903 are in more than 100mm, category
In broad-area electrode.The ratio between electrode external diameter and electrode spacing are 10~20.There is field intensity to homogenize ring 1 on negative electrode end face 803, sun
There is field intensity to homogenize ring 2 904 on extreme face 903, to weaken the electric-field enhancing of electrode end surface.
Reference picture 2 and Fig. 6, described negative electrode cover plate 6 and anode cover plate 12 are threadedly secured to transparent tubular insulation
On outer cover 10, in order to which the high accuracy for realizing negative electrode cover plate 6 and anode cover plate 12 is coaxial, the spiral shell at the transparent two ends of tubular insulation cover 10
Line is respectively provided with outer cover mating surface 1 and outer cover mating surface 2 1002, outer cover mating surface 1 and negative electrode cover plate 6
Second mating surface 602 is connected, and outer cover mating surface 2 1002 is carried out with the 4th mating surface 1203 on anode cover plate 12
It is connected；In addition, negative electrode 8 is realized coaxial by negative electrode mating surface 801 and negative electrode cover plate 6, anode 9 passes through anode mating surface
901 realized with anode cover plate 12 it is coaxial, so as to finally realize the good coaxial of negative electrode 8 and anode 9；Pass through perpendicular positioning ring 802
Ensure the perpendicularity of negative electrode 8, the perpendicularity of anode 9 is ensured by longer mating surface, so as to finally realize negative electrode end face 803
With the depth of parallelism of anode end face 903.By high-precision mating surfaces at different levels and perpendicular positioning ring, negative electrode end face and anode end face are realized
It is good it is coaxial with it is parallel, to avoid the not coaxial or not parallel influence to Electric Field Distribution.
The material of negative electrode cover plate 6 and anode cover plate 12 is stainless steel or other conductive materials, i.e., as structural member and driving
The switch segment electrode in source is connected, and also serves as voltage lead-in and directly introduces pulse voltage, eliminates the electric wire of voltage introducing
The links such as connection.
Claims (8)
1. it is used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages a kind of, including negative electrode, anode, lubricating cup cavity, is arranged on oil
Insulating oil in cup cavity, it is characterised in that：
The end face external diameter of the negative electrode and anode is all higher than 100mm；The negative electrode end face and anode end face are respectively provided with field intensity and homogenized
Ring；
The cavity is seal cavity, including transparent tubular insulation cover, is arranged on transparent tubular by removably and insulate
The negative electrode cover plate and anode cover plate at outer cover two ends, the negative electrode are arranged on negative electrode cover plate, and the anode is arranged on anode cover plate
On；
The lubricating cup cavity is provided with valve.
2. according to claim 1 be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, it is characterised in that：Described the moon
The ratio between pole and anode end face external diameter and the distance between negative electrode and anode are 10~20.
3. according to any described insulation oil test lubricating cups for hundred kilovolts of pulse voltages of claim 1-2, it is characterised in that：
The negative electrode has a negative electrode mating surface and perpendicular positioning ring, and the anode has an anode mating surface, and the negative electrode cover plate has the
One mating surface and the second mating surface, the anode cover plate have the 3rd mating surface and the 4th mating surface, the transparent tubular insulation
The screw thread at outer cover two ends has outer cover mating surface one and outer cover mating surface two respectively；
First mating surface coaxial cooperation of the negative electrode mating surface and negative electrode cover plate；The of the anode mating surface and anode cover plate
Three mating surface coaxial cooperations；The second mating surface and sun of the outer cover mating surface one and outer cover mating surface two respectively with negative electrode cover plate
4th mating surface coaxial cooperation of polar cap plate.
4. according to claim 3 be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, it is characterised in that：The sun
The annular groove for being available for anode to move axially is additionally provided between polar cap plate and anode.
5. according to claim 3 be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, it is characterised in that：The sun
Pole and the connection end of extraneous switch anode are provided with electrical contact copper-base.
6. according to claim 5 be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, it is characterised in that：Described
Electrical contact copper-base is made of the thick red coppers of 0.2~0.5mm, and end is dome structure.
7. according to claim 1 be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, it is characterised in that：Described
The material of negative electrode cover plate and anode cover plate is stainless steel or other conductive materials.
8. according to claim 1 be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages, it is characterised in that：Described the moon
Pole and negative electrode cover plate are connected through a screw thread；Anode and the anode cover plate is connected through a screw thread；The negative electrode cover plate, anode cover plate
It is connected by screw thread with transparent tubular insulation cover；The material of the transparent tubular insulation cover is lucite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621249269.4U CN206321750U (en) | 2016-11-17 | 2016-11-17 | It is a kind of to be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621249269.4U CN206321750U (en) | 2016-11-17 | 2016-11-17 | It is a kind of to be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages |
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| Publication Number | Publication Date |
|---|---|
| CN206321750U true CN206321750U (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621249269.4U Active CN206321750U (en) | 2016-11-17 | 2016-11-17 | It is a kind of to be used for the insulation oil test lubricating cup of hundred kilovolts of pulse voltages |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108459215A (en) * | 2018-01-25 | 2018-08-28 | 广东中鹏电气有限公司 | Vacuum oil and the operating method of nitrogen is rushed during a kind of degradation |
| CN109453574A (en) * | 2018-12-24 | 2019-03-12 | 成都高脉电子产品有限公司 | A kind of electrovacuum super-pressure ageing gas and oil separating plant |
-
2016
- 2016-11-17 CN CN201621249269.4U patent/CN206321750U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108459215A (en) * | 2018-01-25 | 2018-08-28 | 广东中鹏电气有限公司 | Vacuum oil and the operating method of nitrogen is rushed during a kind of degradation |
| CN109453574A (en) * | 2018-12-24 | 2019-03-12 | 成都高脉电子产品有限公司 | A kind of electrovacuum super-pressure ageing gas and oil separating plant |
| CN109453574B (en) * | 2018-12-24 | 2023-11-28 | 成都凯赛尔光电有限公司 | Electric vacuum ultrahigh-pressure aging oil-gas separation device |
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