CN114924173A - Transformer oil arc discharge observation and gas collection device - Google Patents
Transformer oil arc discharge observation and gas collection device Download PDFInfo
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- CN114924173A CN114924173A CN202210039871.9A CN202210039871A CN114924173A CN 114924173 A CN114924173 A CN 114924173A CN 202210039871 A CN202210039871 A CN 202210039871A CN 114924173 A CN114924173 A CN 114924173A
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- 238000010891 electric arc Methods 0.000 title claims abstract description 23
- 238000005259 measurement Methods 0.000 claims description 48
- 238000012360 testing method Methods 0.000 description 29
- 229910052751 metal Inorganic materials 0.000 description 19
- 239000002184 metal Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 13
- 238000007599 discharging Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000004200 deflagration Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/16—Construction of testing vessels; Electrodes therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
Abstract
The utility model discloses a transformer oil arc discharge is surveyd and gas collecting device includes: the high-voltage measuring device comprises a discharge tank body, wherein a high-voltage measuring lead sleeve and a low-voltage measuring lead sleeve are arranged on one side of the discharge tank body, a high-voltage measuring lead is arranged in the high-voltage measuring lead sleeve, and a low-voltage measuring lead is arranged in the low-voltage measuring lead sleeve; the top end of the discharge tank body is provided with a high-voltage wire inlet sleeve, and the bottom end of the discharge tank body is provided with a low-voltage wire outlet sleeve; a discharge electrode is arranged in the discharge tank body and comprises a high-voltage electrode and a low-voltage electrode; the discharge tank is characterized in that a gas outlet is further formed in the discharge tank body, and the gas outlet is connected with a gas collecting device for collecting gas generated by discharge of the discharge tank body.
Description
Technical Field
The utility model belongs to insulating medium discharge characteristic test research field, concretely relates to transformer oil arc discharge is surveyd and gas collecting device.
Background
When high-energy arc discharge occurs in large-sized oil-filled power equipment serving as an important part in high-voltage electrical equipment, gas is decomposed along with the degradation of transformer oil, the pressure in a closed space rises, and then deflagration occurs in a transformer oil tank or a sleeve lifting seat area, so that the safe and stable operation of the power equipment is greatly threatened, and therefore, the arc discharge characteristic in the transformer oil is worthy of deep research. At present, a method of a true verification test is mostly adopted for a deflagration test of transformer oil, high-energy discharge is carried out in a true transformer oil tank or a sleeve pipe lifting seat, and physical quantities such as pressure change, deformation, acceleration and the like of the oil tank or the lifting seat are measured. Although the method can intuitively verify the mechanical strength performance of the lifting seat, the method has the following defects: 1. the test needs to use a true oil tank or a lifting seat to carry out MJ-level energy discharge, has large test scale and high cost, is mostly a verification test, has limited test times, further causes insufficient effective data, and cannot deeply explore the mechanism and the discharge rule of electric arc in oil; 2. in the prior true test, for the measurement of the arc voltage, because a measurement point cannot be close to the root of an arc, and the stray inductance in a loop causes great errors in the measurement of the arc voltage in oil, the accuracy of the arc voltage data measured in the test is questioned, and the calculation of the arc energy is further influenced; 3. generally, in the true type test, due to the consideration of structural mechanical strength, an observation window is not generally arranged, and the process of increasing the pressure in the oil tank due to oil gasification decomposition and bubble movement caused by electric arcs cannot be observed; 4. the gas collecting steel cylinder is generally adopted to collect gas generated in the test, the pressure and the temperature in the gas collecting steel cylinder are measured through the sensor, and the measurement error can be caused due to the non-uniformity of the temperature and the accuracy problem of the sensor.
Therefore, it is necessary to provide an in-oil arc discharge test platform and a gas collecting device, which are convenient for test development, controllable in cost, simple in operation and capable of realizing accurate measurement and clear observation.
Disclosure of Invention
To the deficiency among the prior art, this disclosed aim at provides a transformer oil arc discharge is surveyd and gas collection device, through the device, can carry out more directly perceived, effectively collection and volume measurement to the gas that produces.
In order to achieve the above purpose, the present disclosure provides the following technical solutions:
a transformer oil arc discharge observation and gas collection device comprises:
a discharge tank body is arranged on the bottom of the tank body,
a high-voltage measuring lead sleeve and a low-voltage measuring lead sleeve are arranged on one side of the discharge tank body, a high-voltage measuring lead is arranged in the high-voltage measuring lead sleeve, and a low-voltage measuring lead is arranged in the low-voltage measuring lead sleeve;
the top end of the discharge tank body is provided with a high-voltage wire inlet sleeve, and the bottom end of the discharge tank body is provided with a low-voltage wire outlet sleeve;
a discharge electrode is arranged in the discharge tank body and comprises a high-voltage electrode and a low-voltage electrode;
the discharge tank is also provided with a gas outlet, and the gas outlet is connected with a gas collecting device for collecting gas generated by discharge of the discharge tank.
Preferably, the axial center of the high-voltage electrode is provided with a first arc striking metal wire guide groove.
Preferably, the axial center of the low-voltage electrode is provided with a second arc striking wire guide groove.
Preferably, a high-voltage incoming line is arranged in the high-voltage incoming line sleeve, and the high-voltage electrode is connected with the high-voltage incoming line.
Preferably, a low-voltage outlet wire is arranged in the low-voltage outlet bushing, and the low-voltage electrode is connected with the low-voltage outlet wire.
Preferably, the distance between the high-voltage electrode and the low-voltage electrode is 20mm-80 mm.
Preferably, the high voltage measurement lead is connected to the high voltage electrode by a high voltage measurement lead bushing.
Preferably, the low voltage measuring lead is connected to the low voltage electrode by a low voltage measuring lead bushing.
Preferably, an observation window is further arranged on one side, adjacent to the mounting flange of the pressure sensor, of the discharge tank body.
Preferably, the gas collecting device comprises a needle valve, a buffer gas cylinder, a trace gas pump and a drainage gas collecting tank which are connected in sequence.
Compared with the prior art, the beneficial effect that this disclosure brought does:
according to the arc discharge is surveyd and gas collecting device in oil that this disclosure provided, can realize making things convenient for experimental operation, the purpose of being convenient for observe can be direct-viewing, effectual collection and measurement volume to the gas that produces.
Drawings
Fig. 1 is a schematic structural diagram of a transformer oil arc discharge observation and gas collection device according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of the structure of the discharge vessel of FIG. 1;
FIG. 3 is a schematic view of the wire gripping electrode of FIG. 2;
FIG. 4 is a circuit diagram of a microcavity spray plasma process for striking an arc in oil;
the reference numerals in the drawings are as follows:
1. a needle valve; 2. a buffer gas cylinder; 3. a micro air pump; 4. a drainage gas-collecting tank; 5. discharging the tank body; 6. high-voltage wire inlet; 7. a low-voltage outlet wire; 8. a high voltage service bushing; 9. a low pressure outlet bushing; 10. an observation window; 11. a high voltage measurement lead bushing; 12. a high voltage measurement lead; 13. a low voltage measurement lead sleeve; 14. a low voltage measurement lead; 15-1 parts of high-voltage electrode (15-1-1 parts of mounting thread; 15-1-2 parts of arc striking metal wire tightening screw hole; 15-1-3 parts of first arc striking metal wire guide groove; 15-1-4 parts of fastening ring); 15-2 low voltage electrodes; 16. a pressure sensor mounting flange; 17. a high voltage needle electrode; 18. a ground electrode; 19. a polytetrafluoroethylene sleeve; 20. the needle electrode is triggered.
Detailed Description
Specific embodiments of the present disclosure will be described in detail below with reference to fig. 1 to 4. While specific embodiments of the disclosure are shown in the drawings, it should be understood that the disclosure can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It should be noted that certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, various names may be used to refer to a component. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description which follows is a preferred embodiment of the present disclosure, but is made for the purpose of illustrating the general principles of the disclosure and not for the purpose of limiting the scope of the disclosure. The scope of the present disclosure is to be determined by the terms of the appended claims.
To facilitate an understanding of the embodiments of the present disclosure, the following detailed description is to be considered in conjunction with the accompanying drawings, and the drawings are not to be construed as limiting the embodiments of the present disclosure.
In one embodiment, as shown in fig. 1 and 2, an apparatus for observing arc discharge and collecting gas in transformer oil comprises:
a discharge tank body (5) is arranged on the upper part of the discharge tank body,
a high-voltage measurement lead sleeve 11 and a low-voltage measurement lead sleeve 13 are arranged on one side of the discharge tank body 5, a high-voltage measurement lead 12 is arranged in the high-voltage measurement lead sleeve 11, and a low-voltage measurement lead 14 is arranged in the low-voltage measurement lead sleeve 13;
a high-voltage wire inlet sleeve 8 is arranged at the top end of the discharge tank body 5, and a low-voltage wire outlet sleeve 9 is arranged at the bottom end of the discharge tank body;
a discharge electrode is arranged in the discharge tank body 5 and comprises a high-voltage electrode 15-1 and a low-voltage electrode 15-2;
still be provided with the gas outlet on the discharge tank body 5, the gas outlet is connected with the gas collecting device who is used for discharging the gas that produces to the discharge tank body 5 and collects.
In this embodiment, there are two arc initiation methods: (1) the high-voltage electrode and the low-voltage electrode are in short circuit connection by using a metal wire, when a high-voltage switch outside a discharge tank body in a loop is switched on, the metal wire is heated and fused by large current, a conductive small bridge consisting of metal steam and plasma is formed in oil, the electrodes are switched on, and arc discharge in the oil is generated; (2) a trigger pulse is introduced to initiate an arc using a microcavity plasma jet. The method comprises the following specific steps: as shown in fig. 4, the high voltage electrode is set as a high voltage needle electrode 17, and the high voltage needle electrode 17 is made of copper-tungsten alloy material, is used for a distorted electric field, and is easy to continuously develop discharge. The ground electrode 18 is provided in a structure with a small hole at the center. The needle point of the high-voltage needle electrode 17 is over against the small hole of the ground electrode 18, the distance from the high-voltage needle electrode 17 to the small hole of the ground electrode 18 is 5mm, and the diameter of the small hole of the ground electrode 18 is 2 mm. The trigger pin electrode 20 is opposite to the small hole on the ground electrode 18 through the polytetrafluoroethylene sleeve 19, and the distance from the trigger pin electrode 20 to the ground electrode 18 is 2 mm. When an instantaneous overvoltage is loaded on the trigger pin electrode 20, a small gap between the trigger pin electrode 20 and the ground electrode 18 breaks down, surface discharge occurs on the surface of the polytetrafluoroethylene sleeve 19, plasma is sprayed in a small hole in the center of the ground electrode 18, the plasma penetrates through the ground electrode 18 and the high-voltage pin electrode 17, an electric field between the ground electrode 18 and the pin electrode 17 is distorted, and main gap breakdown is caused. The mode of using the arc striking metal wire is more stable and reliable; the micro-cavity spraying mode is used, so that the step of replacing the metal wire is omitted, and the test operation is more convenient.
In addition, since the gas generated by the discharge of the discharge tank 5 needs to be collected, the present embodiment further provides a gas collecting device on one side of the discharge tank, so that the gas generated by the discharge is collected and processed. It should be noted that, when the discharge tank is designed and the gas collection method is selected, the following contents are considered: firstly, according to the preliminary test data and the results of relevant documents, the energy of arc discharge in oil which is suitable for being carried out under the condition of a test room is determined to be in the hundred kJ grade, the possible maximum pressure value is calculated to be about 1.5MPa according to the discharge power, and the gas quantity is within about 10L. The wall thickness of the discharge tank body is designed to be 10mm according to the data, the material is Q235-B carbon steel, and the wall thickness of the flange is 50 mm.
The embodiment is different from a true test, and adopts a small-model and small-energy discharge test, so that the safety of the test is ensured, the test cost is controlled, the test can be repeatedly carried out for many times, the test conditions are changed for many times, and the test data volume is ensured to be sufficient.
In another embodiment, as shown in fig. 3, the high voltage electrode is provided with a first ignition wire guide groove 15-1-3 at the axial center.
In this embodiment, the top end of the high voltage electrode is provided with a mounting thread 15-1-1, through which the high voltage electrode is fixedly connected in the high voltage incoming line 6. When the arc striking metal wire is used for striking the electric arc, the arc striking metal wire is wound on the bolt and is screwed into the arc striking metal wire tightening screw hole 15-1-2, so that the arc striking metal wire achieves the tightening effect. A first arc striking metal wire guide groove 15-1-3 is arranged in the high-voltage electrode, so that the arc striking metal wire is fixed in the high-voltage electrode 15-1, and the position of the arc striking metal wire is ensured to be fixed during each test. The fastening ring 15-1-4 is arranged outside the high-voltage electrode 15-1 and can be used for ensuring that the high-voltage electrode is in close contact with the arc striking metal wire and ensuring that the root of the electric arc is positioned on the bottom surface of the high-voltage electrode 15-1. Through the clamping action of the high-voltage electrode 15-1, the arc striking metal wire can achieve the effect of vertically tightening the arc striking metal wire in the middle, so that the influence of the difference of the electric arcs caused by the arc striking metal wire on the test result can be avoided, and the repeatability of the test is ensured.
In another embodiment, the low voltage electrode 15-2 is provided with a second arc wire guide groove (not shown) at the axial center.
In this embodiment, the structures of the low voltage electrode and the high voltage electrode are the same, and are not described herein again.
In another embodiment, a high-voltage incoming line 6 is arranged in the high-voltage incoming line sleeve, and the high-voltage electrode 15-1 is vertically connected to the high-voltage incoming line 6 through threads.
In this embodiment, the high-voltage electrode and the arc-striking wire are vertically arranged, so that the arc generated by the discharge develops in a vertical direction, and a pressure wave caused by the arc in the oil is centered on the arc, is approximately cylindrical at a near field, and propagates in an approximately spherical wave form at a far field. Because two opposite observation windows and at least one pressure sensor mounting flange need to be arranged on the side face of the tank body, if the high-voltage electrode and the arc striking wire are horizontally arranged, the pressure measurement result is necessarily blocked by the electrode, so that the high-voltage electrode is not selected to be horizontally arranged.
It should be noted that by adjusting the length of the high-voltage incoming line and the length of the high-voltage electrode, the shortest distance between the high-voltage electrode and the low-voltage electrode is 20mm, and the longest distance between the high-voltage electrode and the low-voltage electrode is 80mm, namely, the length of the electric arc in the oil is continuously adjustable between 20mm and 80 mm. By adjusting the gap length, the arc characteristics in oil of different lengths can be studied.
In another embodiment, a low-voltage outlet 7 is arranged in the low-voltage outlet sleeve, and the low-voltage electrode 15-2 is vertically connected to the low-voltage outlet 7 through threads.
In this embodiment, the low voltage electrode 15-2 is vertically connected to the low voltage outgoing line 7, and the principle thereof is the same as that of the high voltage electrode 15-1, which is not described herein again.
In another embodiment, the high voltage measurement lead 12 is connected to the root of the high voltage electrode 15-1 by a high voltage measurement lead bushing 11.
In this embodiment, the high voltage measurement lead 12 is directly connected to the root of the high voltage electrode 15-1, so that the arc voltage measurement point is directly connected to the arc root, and the measurement point can be led out to the outside of the discharge tank 5 through the high voltage measurement lead 12 and the high voltage measurement lead bushing 11, thereby directly obtaining the voltage variation condition at two ends of the arc, and avoiding the influence of the resistance and inductance contained on the longer lead between the high voltage probes on the measurement result.
In another embodiment, the low voltage measurement lead 14 is connected to the root of the low voltage electrode 15-2 by a low voltage measurement lead bushing 13.
In this embodiment, similarly, the low-voltage measurement lead 14 is connected to the root of the low-voltage electrode 15-2 through the low-voltage measurement lead bushing 13, so that the measurement point can be led out to the outside of the discharge tank 5 through the low-voltage measurement lead 14 and the low-voltage measurement lead bushing 13, the voltage variation conditions at both ends of the arc can be directly obtained, and the influence of the resistance and the inductance on the long lead wire included between the high-voltage probes on the measurement result is avoided.
In another embodiment, a pressure sensor mounting flange 16 is further arranged on the side, opposite to the high-voltage measurement lead sleeve 11 and the low-voltage measurement lead sleeve 13, of the discharge tank body 5, and a pressure sensor is mounted on the pressure sensor mounting flange 16.
In this embodiment, when the pressure wave reaches the sensor, the pressure waveform is obtained more realistically without being obstructed by the electrode or the sensor mounting bracket. According to the demand of measuring the position, pressure sensor's mounting means has two kinds: (1) the sensor is fixed on the flange through threads on the sensor; (2) the sensor flange is provided with a dynamic sealing structure, an adjusting rod is arranged in the dynamic sealing structure, and the distance from the pressure sensing surface of the sensor to the center of the electric arc can be adjusted through the adjusting rod. In addition, the pressure measurement points are arranged in two ways: (1) a single sensor is arranged in one-time discharge, and the method can be used for researching the pressure change condition at a fixed position under different discharge parameters; (2) the method can obtain pressure data at different positions in the same discharging process, and can study the pressure distribution rule and the pressure attenuation rule at different distances.
In another embodiment, the gas collecting device comprises a needle valve 1, a buffer gas cylinder 2, a micro gas pump 3 and a drainage gas collecting tank 4 which are connected in sequence.
In the embodiment, gas generated by discharging electricity in the discharge tank body is discharged through the gas outlet, is conveyed to the buffer gas bottle 2 with the volume of 1L through the needle valve and the gas pipe with the inner diameter of 6.5mm, and is then discharged into the water discharge gas collecting tank 4 through the micro gas pump 3 with the flow rate of 2L/min. The volume of the measuring cylinder in the drainage gas-collecting tank 4 can be selected in advance according to the discharge energy, the interior of the measuring cylinder is filled with water, and the gas generated by the discharge of the discharge tank body is collected by using a drainage gas-collecting method.
Because the gas generated by the transformer oil is insoluble in water and the gas production rate is in a proper range, the gas generated by discharge is collected by the measuring cylinder through the drainage gas collection method, the gas production volume is obtained according to the reading of the measuring cylinder, and the accuracy and intuitiveness of gas volume measurement can be greatly improved compared with the gas collection steel cylinder.
In another embodiment, the side of the discharge tank 5 adjacent to the pressure sensor mounting flange 16 is further provided with an observation window 10.
In this embodiment, the diameter of observation window 10 is 220mm, and it is fixed on the discharge tank body 5 through the flange, and the flange passes through the bolt and realizes fixing and sealing, and after once discharge, the observation window flange can act as the hand hole, conveniently changes the striking wire.
The utility model discloses drawback according to arc discharge test platform in present oil provides the test platform of being convenient for experimental operation, can carry out the optics and observe, and the gas collection platform has simple structure, the audio-visual advantage of effect. The invention can be used for researching the electric arc mechanism in oil and the electric arc decomposition gas, saves the test cost, is simple and easy to implement and is convenient to popularize and use.
The description and applications of the present disclosure are illustrative and are not intended to limit the scope of the present disclosure to the embodiments described above. Variations and modifications of the embodiments disclosed herein are possible, and alternative and equivalent various components of the embodiments are known to those of ordinary skill in the art. It will be clear to one skilled in the art that the present disclosure may be embodied in other forms, structures, arrangements, proportions, and with other components, materials, and parts, without departing from the spirit or essential characteristics thereof. Other variations and modifications of the embodiments disclosed herein may be made without departing from the scope and spirit of the disclosure.
Claims (10)
1. A transformer oil arc discharge observation and gas collection device comprises:
a discharge tank body is arranged on the upper portion of the discharge tank body,
a high-voltage measurement lead sleeve and a low-voltage measurement lead sleeve are arranged on one side of the discharge tank body, a high-voltage measurement lead is arranged in the high-voltage measurement lead sleeve, and a low-voltage measurement lead is arranged in the low-voltage measurement lead sleeve;
the top end of the discharge tank body is provided with a high-voltage wire inlet sleeve, and the bottom end of the discharge tank body is provided with a low-voltage wire outlet sleeve;
a discharge electrode is arranged in the discharge tank body and comprises a high-voltage electrode and a low-voltage electrode;
the discharge tank is also provided with a gas outlet, and the gas outlet is connected with a gas collecting device for collecting gas generated by discharge of the discharge tank.
2. The device according to claim 1, wherein preferably the high voltage electrode is provided with a first ignition wire guide groove in the axial center.
3. The apparatus of claim 1 wherein said low voltage electrode is provided with a second arc wire guide slot axially centered.
4. The device of claim 1, wherein a high voltage inlet is arranged in the high voltage inlet bushing, and the high voltage electrode is connected with the high voltage inlet.
5. The device of claim 1, wherein the low voltage outlet bushing has a low voltage outlet disposed therein, and the low voltage electrode is connected to the low voltage outlet.
6. The device of claim 1, wherein the high voltage electrode and the low voltage electrode are spaced apart by 20mm to 80 mm.
7. The device of claim 1, wherein the high voltage measurement lead is connected to the high voltage electrode by a high voltage measurement lead bushing.
8. The device of claim 1, wherein the low voltage measurement lead is connected to a low voltage electrode by a low voltage measurement lead bushing.
9. The apparatus of claim 1, wherein the discharge can body is further provided with a viewing window on a side thereof adjacent to the pressure sensor mounting flange.
10. The device of claim 1, wherein the gas collection device comprises a needle valve, a buffer gas cylinder, a trace gas pump and a drainage gas collection tank connected in sequence.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349422 | 2021-11-15 | ||
| CN2021113494226 | 2021-11-15 |
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| CN114924173A true CN114924173A (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210039871.9A Pending CN114924173A (en) | 2021-11-15 | 2022-01-10 | Transformer oil arc discharge observation and gas collection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116907725A (en) * | 2023-09-13 | 2023-10-20 | 合肥工业大学 | Method for measuring discharge pressure in liquid in closed environment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518823A (en) * | 2008-12-11 | 2009-09-02 | 兰州理工大学 | Non-contact segmented metal wire electrical explosion method ultra fine powder preparing device |
| CN203851355U (en) * | 2014-04-14 | 2014-09-24 | 中国科学院工程热物理研究所 | Gas discharge plasma generating device with pressure and temperature adjustable |
| CN207318592U (en) * | 2017-08-17 | 2018-05-04 | 哈尔滨理工大学 | One kind is based on the adjustable solid insulating material high field intensity resistivity test system of Paschen's Law air pressure |
| CN207924076U (en) * | 2018-03-21 | 2018-09-28 | 广东电网有限责任公司电力科学研究院 | A kind of detection SF6The device of insulation defect |
| CN111712030A (en) * | 2020-05-15 | 2020-09-25 | 西安交通大学 | Capillary system for generating repeated-frequency high-heat-load plasma jet |
| CN111999613A (en) * | 2020-08-17 | 2020-11-27 | 国家电网有限公司 | Device and system for simulating arc discharge in oil by using transformer and test method thereof |
-
2022
- 2022-01-10 CN CN202210039871.9A patent/CN114924173A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518823A (en) * | 2008-12-11 | 2009-09-02 | 兰州理工大学 | Non-contact segmented metal wire electrical explosion method ultra fine powder preparing device |
| CN203851355U (en) * | 2014-04-14 | 2014-09-24 | 中国科学院工程热物理研究所 | Gas discharge plasma generating device with pressure and temperature adjustable |
| CN207318592U (en) * | 2017-08-17 | 2018-05-04 | 哈尔滨理工大学 | One kind is based on the adjustable solid insulating material high field intensity resistivity test system of Paschen's Law air pressure |
| CN207924076U (en) * | 2018-03-21 | 2018-09-28 | 广东电网有限责任公司电力科学研究院 | A kind of detection SF6The device of insulation defect |
| CN111712030A (en) * | 2020-05-15 | 2020-09-25 | 西安交通大学 | Capillary system for generating repeated-frequency high-heat-load plasma jet |
| CN111999613A (en) * | 2020-08-17 | 2020-11-27 | 国家电网有限公司 | Device and system for simulating arc discharge in oil by using transformer and test method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116907725A (en) * | 2023-09-13 | 2023-10-20 | 合肥工业大学 | Method for measuring discharge pressure in liquid in closed environment |
| CN116907725B (en) * | 2023-09-13 | 2023-12-08 | 合肥工业大学 | Method for measuring discharge pressure in liquid in closed environment |
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