CN204085816U - A kind of device for monitoring bushing shell for transformer sealing condition - Google Patents
A kind of device for monitoring bushing shell for transformer sealing condition Download PDFInfo
- Publication number
- CN204085816U CN204085816U CN201420516191.2U CN201420516191U CN204085816U CN 204085816 U CN204085816 U CN 204085816U CN 201420516191 U CN201420516191 U CN 201420516191U CN 204085816 U CN204085816 U CN 204085816U
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- CN
- China
- Prior art keywords
- valve
- monitoring
- gas
- bushing shell
- transformer
- 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.)
- Expired - Fee Related
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 title claims abstract description 18
- 230000008676 import Effects 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000009736 wetting Methods 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 abstract description 2
- 230000001771 impaired effect Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a kind of device for monitoring bushing shell for transformer sealing condition, and the SF with T-valve is installed at the pouring orifice place on described bushing shell for transformer conservator
6air density meter, the outlet of described T-valve is connected with pouring orifice by adapter, and an import of described T-valve is connected with the vacuum pump extracted out by the air in sleeve pipe, and another import of described T-valve is connected with and is filled with SF in sleeve pipe
6the SF of gas
6gas cylinder.This apparatus design is novel, structure is simple and easy to operate, can by introducing SF in sleeve pipe
6gas, by monitoring SF
6gas density carrys out the sealing situation of monitoring sleeve, thus realizes the real-time monitoring to bobbin seal; In bobbin seal impaired initial stage Timeliness coverage problem, effectively can prevent the large-scale power grid accident that set off an explosion because of inside pipe casing watered and wetting, to electric power netting safe running, there is high economic benefit.
Description
Technical field
The utility model relates to a kind of device for monitoring bushing shell for transformer sealing condition, belongs to electric system power transmission and transforming equipment on-line monitoring field.
Background technology
By adverse weather conditions, bushing shell for transformer causes internal discharge even to explode fault because of watered and wetting is increasing, causes harmful effect to the safe and stable operation of grid equipment.At present, the research temporarily not relevant for the sealing condition of inside pipe casing and counter-measure, existing test method and on-Line Monitor Device all cannot to be made moist to sleeve pipe in the very first time and be provided alert.
Utility model content
In order to the problem of Timeliness coverage bushing shell for transformer poor sealing, the purpose of this utility model is to provide a kind of device for monitoring bushing shell for transformer sealing condition, and this device is convenient to be filled with SF toward bushing shell for transformer inside
6gas, and by monitoring SF
6gas density monitors the real-time status of bobbin seal.
To achieve these goals, the technical solution of the utility model is: a kind of device for monitoring bushing shell for transformer sealing condition, and the SF with T-valve is installed at the pouring orifice place on described bushing shell for transformer conservator
6air density meter, the outlet of described T-valve is connected with pouring orifice by adapter, and an import of described T-valve is connected with the vacuum pump extracted out by the air in sleeve pipe, and another import of described T-valve is connected with and is filled with SF in sleeve pipe
6the SF of gas
6gas cylinder.
Further, described vacuum pump and SF
6the pipeline of gas cylinder is provided with valve.
Further, described SF
6liquid is filled with in air density meter.
The utility model has following beneficial effect: this apparatus design is novel, structure is simple and easy to operate, can by introducing SF in sleeve pipe
6gas, by monitoring SF
6gas density carrys out the sealing situation of monitoring sleeve, thus realizes the real-time monitoring to bobbin seal; In bobbin seal impaired initial stage Timeliness coverage problem, effectively can prevent the large-scale power grid accident that set off an explosion because of inside pipe casing watered and wetting, to electric power netting safe running, there is high economic benefit.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
In figure: 1-bushing shell for transformer conservator, 2-pouring orifice, 3-adapter, 4-T-valve, 5-SF
6air density meter, 6-vacuum pump, 7-SF
6gas cylinder.
Embodiment
As shown in Figure 1 and 2, a kind of device for monitoring bushing shell for transformer sealing condition, the SF with T-valve 4 is installed at pouring orifice 2 place on described bushing shell for transformer conservator 1
6air density meter 5, the outlet of described T-valve is connected with pouring orifice 2 by adapter 3, and an import of described T-valve 4 is connected with the vacuum pump 6 extracted out by the air in sleeve pipe, and another import of described T-valve 4 is connected with and is filled with SF in sleeve pipe
6the SF of gas
6gas cylinder 5.
In the present embodiment, conveniently vacuumize and gas injection, described vacuum pump 6 and SF
6the pipeline of gas cylinder 7 is provided with valve.In order to weaken the impact of the vibrations in transformer operational process on pointer, described SF
6be filled with certain liquid in air density meter 5 and carry out damping, avoid SF
6air density meter 5 produces error.
This is used for the device of monitoring bushing shell for transformer sealing condition, and its installation and application is as follows:
(1) SF with T-valve 4 is installed at pouring orifice 2 place on bushing shell for transformer conservator 1
6air density meter 5, the outlet of T-valve 4 is connected with pouring orifice 2 by adapter 3; Adapter 3 one end of the present utility model is connected with pouring orifice 2, the other end and SF
6air density meter 5 connects, with the SF of T-valve 4
6air density meter 5 meets inflation/deflation needs; Adapter 3 size is according to the pouring orifice 2 on sleeve pipe conservator 1 and SF
6the size design of density meter 5 connector.
(2) pipeline of vacuum pump 6 is connected with an import of T-valve 4, the air in sleeve pipe is extracted out, when the pressure in sleeve pipe vacuumizes close to stopping time vacuum (such as when the pressure in sleeve pipe reaches 200Pa); During actual installation, first sleeve pipe should be vacuumized, then be filled with SF
6gas.
(3) by SF
6the pipeline of gas cylinder 7 is connected with another import of T-valve 4, in sleeve pipe, be filled with SF
6gas, stops gas injection when the gaseous tension in sleeve pipe reaches 0.05MPa, two imports of good seal T-valve 4; The utility model is by SF
6gas is filled with from the pouring orifice 2 sleeve pipe conservator 1, SF
6gas-insulated is functional, has been widely used in the built-in electrical insulation of isolating switch at present, can meet the requirement of high-voltage operation, and its relative molecular weight is greater than air, is slightly soluble in transformer oil.
(4) SF is passed through
6the SF of air density meter 5 pairs of inside pipe casings
6gas density carries out Real-Time Monitoring, when bobbin seal is good, and SF
6the density value of gas can not change; When bobbin seal is bad, not only SF
6gas can be revealed, and the moisture in air also can penetrate into inside pipe casing by bobbin seal weakness, now SF
6air density meter 5 shows SF
6the density of gas drops to outside normal range; Therefore, SF can be passed through
6the change of gas density value judges that whether the sealing of bushing shell for transformer is good.
In transformer actual motion, when bushing shell for transformer good seal, due to the influence of temperature change by Transformer, the insulating oil of inside pipe casing can expand with heat and contract with cold, thus causes SF
6gas density can change within the specific limits, therefore can preset a warning value.In the present embodiment, the method also can comprise step (5), works as SF
6when the density of gas drops to predetermined warning value, illustrate that bobbin seal goes wrong, the test that should have a power failure, to check.
The utility model is convenient injects SF in sleeve pipe
6gas, then by monitoring SF
6the change of gas density value judges bushing shell for transformer whether poor sealing; Can by Real-Time Monitoring to bobbin seal, to go forward side by side row relax in initial stage Timeliness coverage defect of making moist, avoid inside pipe casing to insulate deterioration further cause power grid accident, guarantee electric power netting safe running.The utility model introduces first in the monitoring field of bushing shell for transformer and use SF widely in isolating switch kind equipment
6gas, creatively utilizes SF
6gas monitors bushing shell for transformer sealing condition, solves a difficult problem for bobbin seal monitoring.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (3)
1. for monitoring a device for bushing shell for transformer sealing condition, it is characterized in that: the SF with T-valve is installed at the pouring orifice place on described bushing shell for transformer conservator
6air density meter, the outlet of described T-valve is connected with pouring orifice by adapter, and an import of described T-valve is connected with the vacuum pump extracted out by the air in sleeve pipe, and another import of described T-valve is connected with and is filled with SF in sleeve pipe
6the SF of gas
6gas cylinder.
2. the device for monitoring bushing shell for transformer sealing condition according to claim 1, is characterized in that: described vacuum pump and SF
6the pipeline of gas cylinder is provided with valve.
3. the device for monitoring bushing shell for transformer sealing condition according to claim 1, is characterized in that: described SF
6liquid is filled with in air density meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420516191.2U CN204085816U (en) | 2014-09-10 | 2014-09-10 | A kind of device for monitoring bushing shell for transformer sealing condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420516191.2U CN204085816U (en) | 2014-09-10 | 2014-09-10 | A kind of device for monitoring bushing shell for transformer sealing condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204085816U true CN204085816U (en) | 2015-01-07 |
Family
ID=52178518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420516191.2U Expired - Fee Related CN204085816U (en) | 2014-09-10 | 2014-09-10 | A kind of device for monitoring bushing shell for transformer sealing condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204085816U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706226A (en) * | 2015-07-20 | 2017-05-24 | 深圳先进技术研究院 | Sealing performance detection system |
| CN106733724A (en) * | 2017-03-21 | 2017-05-31 | 道真自治县金林科技有限公司 | A kind of screening plant for high frequency transformer |
-
2014
- 2014-09-10 CN CN201420516191.2U patent/CN204085816U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706226A (en) * | 2015-07-20 | 2017-05-24 | 深圳先进技术研究院 | Sealing performance detection system |
| CN106733724A (en) * | 2017-03-21 | 2017-05-31 | 道真自治县金林科技有限公司 | A kind of screening plant for high frequency transformer |
| CN106733724B (en) * | 2017-03-21 | 2019-01-18 | 道真自治县金林科技有限公司 | A kind of screening plant for high frequency transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID FUJIAN ELECTRIC POWER CO., LTD. INSTITU Free format text: FORMER OWNER: STATE GRID FUJIAN ELECTRIC POWER CO., LTD. ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID FUJIAN ELECTRIC POWER CO., LTD. Effective date: 20150113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150113 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: STATE GRID FUJIAN ELECTRIC POWER Co.,Ltd. Patentee after: STATE GRID SMART GRID Research Institute Patentee after: STATE GRID FUJIAN ELECTRIC POWER Research Institute Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: STATE GRID FUJIAN ELECTRIC POWER Co.,Ltd. Patentee before: STATE GRID FUJIAN ELECTRIC POWER Research Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20210910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |