CN104535372A - Automatic vacuum oil sampling device for electric high-voltage oil-filled mutual inductor and using method thereof - Google Patents
Automatic vacuum oil sampling device for electric high-voltage oil-filled mutual inductor and using method thereof Download PDFInfo
- Publication number
- CN104535372A CN104535372A CN201510002843.XA CN201510002843A CN104535372A CN 104535372 A CN104535372 A CN 104535372A CN 201510002843 A CN201510002843 A CN 201510002843A CN 104535372 A CN104535372 A CN 104535372A
- Authority
- CN
- China
- Prior art keywords
- oil
- mutual inductor
- solenoid valve
- high voltage
- power high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 20
- 210000004907 gland Anatomy 0.000 claims abstract description 37
- 239000000523 sample Substances 0.000 claims description 92
- 239000000446 fuel Substances 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 6
- 230000009545 invasion Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to an automatic vacuum oil sampling device for an electric high-voltage oil-filled mutual inductor and a using method thereof. The automatic vacuum oil sampling device comprises the electric high-voltage oil-filled mutual inductor, a minitype vacuum pump, a vacuum pumping electromagnetic valve, an oil sample feeding electromagnetic valve, an oil level sensor controller, a sampling bottle and the like. The oil sample feeding electromagnetic valve, the vacuum pumping electromagnetic valve and the oil level sensor controller are arranged on a sampling bottle gland. An oil sampling connecting tube is connected with a mutual inductor oil drain valve and the oil sample feeding electromagnetic valve. A vacuum pumping connecting tube is connected with the minitype vacuum pump and the vacuum pumping electromagnetic valve. The oil level sensor controller is electrically connected with the minitype vacuum pump, the oil sample feeding electromagnetic valve and the vacuum pumping electromagnetic valve. The automatic vacuum oil sampling device completes the vacuum sealing oil sampling work of the whole process of the electric high-voltage oil-filled mutual inductor, and can automatically control the closing of a vacuum pumping device and the valves after oil sampling is completed, invasion of outside moisture, air and impurities to the electric high-voltage oil-filled mutual inductor in the oil sampling process is avoided, and the safe operation of the electric high-voltage oil-filled mutual inductor is powerfully guaranteed.
Description
Technical field
The vacuum that the present invention relates to power high voltage oil-filled mutual inductor draws oil sample field, particularly a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device and using method.
Background technology
The long-term power high voltage oil-filled mutual inductor run under high electric field, it is inner as produced as the fault characteristic gases of methane, ethane, ethene, acetylene, hydrogen, carbon monoxide, carbon dioxide etc. when there is overheated, discharging fault and hidden danger, these fault characteristic gases can be dissolved in oil, therefore need regularly to draw oil sample and carry out stratographic analysis test, whether normal to judge the power high voltage oil-filled mutual inductor run.Due to power high voltage oil-filled mutual inductor manufacture and installation process in for ensuring the quality of products, vacuumize degassing need be carried out, dehumidify and vacuumize the work such as oiling, make it be in operation and can keep certain vacuum tightness.Traditional oil sealed sampling device of power high voltage oil-filled mutual inductor and the mode that draws oil sample, adopt glass syringe or sampling vial, use connecting tube, work of drawing oil sample is carried out by the fuel outlet valve of turns on power high pressure oil-filled mutual inductor, but keep certain vacuum tightness because many power high voltage oil-filled mutual inductors are in operation, now need artificial being outwarded winding by power high voltage oil-filled mutual inductor top air relief cock, after destroying the vacuum state of power high voltage oil-filled mutual inductor inside, just can draw oil sample, if do not destroyed sealing, even adopt syringe to extract, due to people for draft is not enough, also usually cannot sample.To outward winding power high voltage oil-filled mutual inductor top air relief cock, extraneous moisture, air and floating impurity can suck by its inner vacuum, power high voltage oil-filled mutual inductor is run and produces harm, even cause the accident, destroy vacuum state also unfavorable to the operation of power high voltage oil-filled mutual inductor.
Summary of the invention
In view of this, the object of this invention is to provide a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device and using method, can ensure that vacuum seal is carried out drawing oil sample in whole process.
Device of the present invention adopts following scheme to realize: a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device, comprise a power high voltage oil-filled mutual inductor, also comprise a minipump, and vacuumize solenoid valve, an oil-feed sample solenoid valve, an oil level sensing controler, a sampling jar, the connecting leg and that draws oil sample vacuumizes connecting leg; Described oil-feed sample solenoid valve, vacuumize solenoid valve and described oil level sensing controler is all arranged on the gland of described sampling jar; One end of the described connecting leg that draws oil sample is connected to the fuel outlet valve of described power high voltage oil-filled mutual inductor, described in the draw oil sample other end of connecting leg be connected to described oil-feed sample solenoid valve; Described one end vacuumizing connecting leg is connected to described minipump, and the described other end vacuumizing connecting leg is connected to and described vacuumizes solenoid valve; Described oil level sensing controler is electrically connected with described minipump, described oil-feed sample solenoid valve and the described solenoid valve that vacuumizes respectively, and minipump, oil-feed sample solenoid valve described in controlling and vacuumize the action of solenoid valve.
Further, described minipump, oil-feed sample solenoid valve, solenoid valve and oil level sensing controler is vacuumized by rechargeable battery powered.
Further, described sampling jar comprises bottle and described gland, and described gland and bottle are tightly connected by thread and airtight and watertight padding.
Further, one end that described oil-feed sample solenoid valve is connected with described gland is connected to an oil-feed skirt, and described oil-feed skirt penetrates described gland, and extends certain length in described sampling jar.
Preferably, sampling jar comprises gland by stainless steel or teflon, or other material be applicable to makes, and its thickness and rigidity should be able to ensure to bear required vacuum tightness.
Further, the probe of described oil level sensing controler stretches into a predetermined depth in described sampling jar through described gland, and this certain predetermined depth can set.Preferably, oil level sensing controler is electrically connected at minipump, oil-feed sample solenoid valve and vacuumizes solenoid valve, when oil level in sampling jar rise to touch oil level sensing controler probe time, the action of oil level sensing controler, controls close minipump, oil-feed sample solenoid valve and vacuumize solenoid valve automatically.
Implementation method of the present invention adopts following scheme to realize: a kind of using method as above-mentioned apparatus of the present invention, comprises the following steps:
Step S1: be connected to one end of the described connecting leg that draws oil sample on the fuel outlet valve of described power high voltage oil-filled mutual inductor, is connected to the other end of the described connecting leg that draws oil sample on described oil-feed sample solenoid valve;
Step S2: described one end vacuumizing connecting leg is connected to described minipump, the other end vacuumizing connecting leg is just connected to and described vacuumizes on solenoid valve;
Step S3: open described minipump in order successively, described vacuumize solenoid valve and described oil-feed sample solenoid valve;
Step S4: the fuel outlet valve opening described power high voltage oil-filled mutual inductor, the oil in described power high voltage oil-filled mutual inductor is pumped down to described sampling jar due to the effect of vacuum;
Step S5: when the oil level in described sampling jar rises to the probe of described oil level sensing controler, the action of described oil level sensing controler, automatically controls the minipump described in closing, described oil-feed sample solenoid valve and described vacuumizes solenoid valve;
Step S6: the fuel outlet valve of closing described power high voltage oil-filled mutual inductor;
Step S7: unload the described connecting leg and described vacuumize connecting leg of drawing oil sample in order successively, draw oil sample end-of-job.
Further, described minipump, oil-feed sample solenoid valve, solenoid valve and oil level sensing controler is vacuumized by rechargeable battery powered.
Further, described sampling jar comprises bottle and described gland, and described gland and bottle are tightly connected by thread and airtight and watertight padding.
Further, one end that described oil-feed sample solenoid valve is connected with described gland is connected to an oil-feed skirt, and described oil-feed skirt penetrates described gland, and extends certain length in described sampling jar.
Further, the probe of described oil level sensing controler stretches into a predetermined depth in described sampling jar through described gland.
The present invention to draw oil sample work to the vacuum seal of power high voltage oil-filled mutual inductor overall process owing to achieving, and can after having drawn oil sample, the closedown of automatic control vacuum extractor and valve, avoid power high voltage oil-filled mutual inductor in the process of drawing oil sample, the intrusion of extraneous moisture, air and impurity, the safe operation of powerful guarantee power high voltage oil-filled mutual inductor, compares with the procedural mode that draws oil sample the advantage having and can not intend ratio with conventional electric power high pressure oil-filled mutual inductor oil sealed sampling device.
Accompanying drawing explanation
Fig. 1 is power high voltage oil-filled mutual inductor schematic diagram of the present invention.
Fig. 2 is sampling jar schematic diagram of the present invention.
Fig. 3 is that power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device of the present invention is connected operating diagram with power high voltage oil-filled mutual inductor.
Fig. 4 is the operating diagram of sampling jar of the present invention when carrying out vacuum and drawing oil sample.
To be sampling jar of the present invention draw oil sample and stop vacuumizing and oil-feed schematic diagram to oil level sensing controler setting oil level probe carrying out vacuum Fig. 5.
Fig. 6 is the sampling jar oil level set-point control loop schematic diagram of oil level sensing controler of the present invention.
Fig. 7 is the sampling bottle height oil level point control main wiring diagram of oil level sensing controler of the present invention.
Fig. 8 is oil level sensing controler principle of work block scheme of the present invention.
primary clustering symbol description]
In figure: 1 is minipump, and 2 for vacuumizing connecting leg, and 3 for vacuumizing solenoid valve, 4 is sampling jar gland, and 5 is sampling jar, and 6 is oil-feed sample solenoid valve, 7 is the connecting leg that draws oil sample, and 8 is fuel outlet valve, and 9 is power high voltage oil-filled mutual inductor, 10 is transformer oil in power high voltage oil-filled mutual inductor, and 11 is power high voltage oil-filled mutual inductor oil level view monitor, and 12 is power high voltage oil-filled mutual inductor air relief cock, 13 is oil level sensing controler, 14 is oil-feed skirt, and 15 is oil level sensing controler probe, and 16 is oil sample.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the present embodiment provides a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device, comprise a power high voltage oil-filled mutual inductor 9, also comprise a minipump 1, to vacuumize solenoid valve 3, oil-feed sample solenoid valve 6, oil level sensing controler 13, sampling jar 5, connecting leg 7 and that draws oil sample and vacuumize connecting leg 2; Described oil-feed sample solenoid valve 6, vacuumize solenoid valve 3 and described oil level sensing controler 13 is all arranged on the gland 4 of described sampling jar 5; One end of the described connecting leg 7 that draws oil sample is connected to the fuel outlet valve 8 of described power high voltage oil-filled mutual inductor, described in the draw oil sample other end of connecting leg 7 be connected to described oil-feed sample solenoid valve 6; Described one end vacuumizing connecting leg 2 is connected to described minipump 1, and the described other end vacuumizing connecting leg 2 is connected to and described vacuumizes solenoid valve 3; Described oil level sensing controler 13 is electrically connected with described minipump 1, described oil-feed sample solenoid valve 6 and the described solenoid valve 3 that vacuumizes respectively, and minipump 1, oil-feed sample solenoid valve 6 described in controlling and vacuumize the action of solenoid valve 3.
In the present embodiment, described minipump 1, oil-feed sample solenoid valve 6, solenoid valve 3 and oil level sensing controler 13 is vacuumized by rechargeable battery powered.
In the present embodiment, described sampling jar 5 comprises bottle and described gland 4, and described gland 4 and bottle are tightly connected by thread and airtight and watertight padding.
In the present embodiment, one end that described oil-feed sample solenoid valve 6 is connected with described gland 4 is connected to an oil-feed skirt 14, and described oil-feed skirt 14 penetrates described gland 4, and extends certain length in described sampling jar 5.
Preferably, sampling jar 5 comprises gland 4 by stainless steel or teflon in the present embodiment, or other material be applicable to makes, and its thickness and rigidity should be able to ensure to bear required vacuum tightness.
In the present embodiment, the probe of described oil level sensing controler 13 stretches into a predetermined depth in described sampling jar 5 through described gland, and this certain predetermined depth can set.
Preferably, as shown in Fig. 6, Fig. 7 and Fig. 8, oil level sensing controler 13 is electrically connected at minipump 1, oil-feed sample solenoid valve 6 and vacuumizes solenoid valve 3, when oil level in sampling jar 5 rise to touch oil level sensing controler pop one's head in 15 time, oil level sensing controler 13 action, controls close minipump 1, oil-feed sample solenoid valve 6 and vacuumize solenoid valve 3 automatically.Wherein, DJ1 is that oil level sensing controler oil level arranges electric contact relay, and C1 is control contactor, and N is zero line.
The present embodiment additionally provides a kind of using method as above-mentioned apparatus of the present invention, comprises the following steps:
Step S1: be connected to described one end of drawing oil sample connecting leg 7 on the fuel outlet valve 8 of described power high voltage oil-filled mutual inductor 9, is connected to the described other end drawing oil sample connecting leg 7 on described oil-feed sample solenoid valve 6;
Step S2: described one end vacuumizing connecting leg 2 is connected to described minipump 1, the other end vacuumizing connecting leg 2 is just connected to and described vacuumizes on solenoid valve 3;
Step S3: open described minipump 1 in order successively, described vacuumize solenoid valve 3 and described oil-feed sample solenoid valve 6;
Step S4: the fuel outlet valve 8 opening described power high voltage oil-filled mutual inductor 9, in described power high voltage oil-filled mutual inductor, the oil 10 of 9 is pumped down to described sampling jar 5 due to the effect of vacuum;
Step S5: when the oil level in described sampling jar 5 rises to the probe 15 of described oil level sensing controler, the action of described oil level sensing controler 13, automatically controls the minipump 1 described in closing, described oil-feed sample solenoid valve 6 and described vacuumizes solenoid valve 3;
Step S6: the fuel outlet valve 8 of closing described power high voltage oil-filled mutual inductor 9;
Step S7: unload the described connecting leg 7 and described vacuumize connecting leg 2 of drawing oil sample in order successively, draw oil sample end-of-job.
In the present embodiment, described minipump 1, oil-feed sample solenoid valve 6, solenoid valve 3 and oil level sensing controler 13 is vacuumized by rechargeable battery powered.
In the present embodiment, described sampling jar 5 comprises bottle and described gland 4, and described gland 4 and bottle are tightly connected by thread and airtight and watertight padding.
Further, one end that oil-feed sample solenoid valve 6 described is in the present embodiment connected with described gland 4 is connected to an oil-feed skirt 14, and described oil-feed skirt 14 penetrates described gland 4, and extends certain length in described sampling jar 5.
In the present embodiment, the probe 15 of described oil level sensing controler stretches into a predetermined depth in described sampling jar 5 through described gland 4.
In sum, the present invention to draw oil sample work to the vacuum seal of power high voltage oil-filled mutual inductor overall process owing to achieving, and can after having drawn oil sample, the closedown of automatic control vacuum extractor and valve, avoid power high voltage oil-filled mutual inductor in the process of drawing oil sample, the intrusion of extraneous moisture, air and impurity, the safe operation of powerful guarantee power high voltage oil-filled mutual inductor, compares with the procedural mode that draws oil sample the advantage having and can not intend ratio with conventional electric power high pressure oil-filled mutual inductor oil sealed sampling device.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. a power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device, comprise a power high voltage oil-filled mutual inductor, it is characterized in that: also comprise a minipump, and vacuumize solenoid valve, an oil-feed sample solenoid valve, an oil level sensing controler, a sampling jar, the connecting leg and that draws oil sample vacuumizes connecting leg; Described oil-feed sample solenoid valve, vacuumize solenoid valve and described oil level sensing controler is all arranged on the gland of described sampling jar; One end of the described connecting leg that draws oil sample is connected to the fuel outlet valve of described power high voltage oil-filled mutual inductor, described in the draw oil sample other end of connecting leg be connected to described oil-feed sample solenoid valve; Described one end vacuumizing connecting leg is connected to described minipump, and the described other end vacuumizing connecting leg is connected to and described vacuumizes solenoid valve; Described oil level sensing controler is electrically connected with described minipump, described oil-feed sample solenoid valve and the described solenoid valve that vacuumizes respectively.
2. a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device according to claim 1, is characterized in that: described minipump, oil-feed sample solenoid valve, vacuumize solenoid valve and oil level sensing controler by rechargeable battery powered.
3. a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device according to claim 1, is characterized in that: described sampling jar comprises bottle and described gland, and described gland and bottle are tightly connected by thread and airtight and watertight padding.
4. a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device according to claim 1, it is characterized in that: one end that described oil-feed sample solenoid valve is connected with described gland is connected to an oil-feed skirt, described oil-feed skirt penetrates described gland, and extends certain length in described sampling jar.
5. a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device according to claim 1, is characterized in that: the probe of described oil level sensing controler stretches into a predetermined depth in described sampling jar through described gland.
6. a using method for power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device as claimed in claim 1, is characterized in that comprising the following steps:
Step S1: be connected to one end of the described connecting leg that draws oil sample on the fuel outlet valve of described power high voltage oil-filled mutual inductor, is connected to the other end of the described connecting leg that draws oil sample on described oil-feed sample solenoid valve;
Step S2: described one end vacuumizing connecting leg is connected to described minipump, the other end vacuumizing connecting leg is just connected to and described vacuumizes on solenoid valve;
Step S3: open described minipump in order successively, described vacuumize solenoid valve and described oil-feed sample solenoid valve;
Step S4: the fuel outlet valve opening described power high voltage oil-filled mutual inductor, the oil in described power high voltage oil-filled mutual inductor is pumped down to described sampling jar due to the effect of vacuum;
Step S5: when the oil level in described sampling jar rises to the probe of described oil level sensing controler, the action of described oil level sensing controler, automatically controls the minipump described in closing, described oil-feed sample solenoid valve and described vacuumizes solenoid valve;
Step S6: the fuel outlet valve of closing described power high voltage oil-filled mutual inductor;
Step S7: unload the described connecting leg and described vacuumize connecting leg of drawing oil sample in order successively, draw oil sample end-of-job.
7. the using method of a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device according to claim 6, is characterized in that: described minipump, oil-feed sample solenoid valve, vacuumize solenoid valve and oil level sensing controler by rechargeable battery powered.
8. the using method of a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device according to claim 6, is characterized in that: described sampling jar comprises bottle and described gland, and described gland and bottle are tightly connected by thread and airtight and watertight padding.
9. the using method of a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device according to claim 6, it is characterized in that: one end that described oil-feed sample solenoid valve is connected with described gland is connected to an oil-feed skirt, described oil-feed skirt penetrates described gland, and extends certain length in described sampling jar.
10. the using method of a kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device according to claim 6, is characterized in that: the probe of described oil level sensing controler stretches into a predetermined depth in described sampling jar through described gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002843.XA CN104535372A (en) | 2015-01-06 | 2015-01-06 | Automatic vacuum oil sampling device for electric high-voltage oil-filled mutual inductor and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002843.XA CN104535372A (en) | 2015-01-06 | 2015-01-06 | Automatic vacuum oil sampling device for electric high-voltage oil-filled mutual inductor and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104535372A true CN104535372A (en) | 2015-04-22 |
Family
ID=52850946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510002843.XA Pending CN104535372A (en) | 2015-01-06 | 2015-01-06 | Automatic vacuum oil sampling device for electric high-voltage oil-filled mutual inductor and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104535372A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195627A (en) * | 2018-03-08 | 2018-06-22 | 云南电网有限责任公司电力科学研究院 | The hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer |
| CN110459384A (en) * | 2019-09-11 | 2019-11-15 | 国网福建省电力有限公司检修分公司 | Capacitance type potential transformer electromagnetic unit takes oil and recharging oil device and working method |
| CN117124296A (en) * | 2023-10-12 | 2023-11-28 | 国网山西省电力公司电力科学研究院 | Butt joint device for sampling extra-high voltage oil filling equipment |
-
2015
- 2015-01-06 CN CN201510002843.XA patent/CN104535372A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195627A (en) * | 2018-03-08 | 2018-06-22 | 云南电网有限责任公司电力科学研究院 | The hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer |
| CN110459384A (en) * | 2019-09-11 | 2019-11-15 | 国网福建省电力有限公司检修分公司 | Capacitance type potential transformer electromagnetic unit takes oil and recharging oil device and working method |
| CN117124296A (en) * | 2023-10-12 | 2023-11-28 | 国网山西省电力公司电力科学研究院 | Butt joint device for sampling extra-high voltage oil filling equipment |
| CN117124296B (en) * | 2023-10-12 | 2024-03-12 | 国网山西省电力公司电力科学研究院 | Butt joint device for sampling extra-high voltage oil filling equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104535372A (en) | Automatic vacuum oil sampling device for electric high-voltage oil-filled mutual inductor and using method thereof | |
| CN102034591B (en) | Device and method for injecting oil into transformer under vacuum condition | |
| CN104764632A (en) | Non-contact type full-automatic gas sample retention device | |
| CN104157406A (en) | Capsule type oil storage cabinet of transformer | |
| CN103523405A (en) | Intelligent dynamic sealing liquid storage tank with flexible capsule and using method thereof | |
| CN103824680A (en) | On-line intelligent oil recharging device and method for electric oil-charged transformer | |
| CN105691970A (en) | Sealed liquid storage tank with elastic inner container compensation device and using method thereof | |
| CN204314104U (en) | A kind of power high voltage oil-filled mutual inductor automatic vacuum oil sealed sampling device | |
| CN205569833U (en) | Electric desalination device that utmost point gas safety was discharged | |
| CN204188340U (en) | Product waterproof detection device | |
| CN103076206A (en) | Transformer oil taking apparatus and use method thereof | |
| CN103523387A (en) | Intelligent dynamic sealed liquid storage tank with flexible diaphragm and using method thereof | |
| CN215983941U (en) | High-temperature vacuum furnace with heat insulation structure for special graphite processing | |
| CN206852007U (en) | A kind of expanded cut tobacco exhaust apparatus | |
| CN202869761U (en) | Automatic aluminum pot leak detector | |
| CN202599717U (en) | Transformer oil extracting device | |
| CN109669111A (en) | A kind of transformer oil degassing dehydration device | |
| CN103738616B (en) | A kind of using method of electric ultra-high pressure oil intelligent vacuum storage device | |
| CN203512404U (en) | Intelligent dynamic hermetic liquid storage tank with flexible capsule | |
| CN210120328U (en) | Control room and monitored control system for it is underground or under water | |
| CN202133571U (en) | Interface device used in electrified humidity test of sulfur hexafluoride gas of electrical equipment | |
| CN203132781U (en) | Sealing plug used for on-line detection of vacuum facilities | |
| KR101875551B1 (en) | Equipment opening and shutting superhigh pressure compressed gas | |
| CN204964146U (en) | Sample valve leak hunting device | |
| CN204614645U (en) | A kind of power high voltage oil-filled mutual inductor SF 6hermetically sealed can protective device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |