CN102856045A - Oil filtering structure for on-load tap-changers - Google Patents
Oil filtering structure for on-load tap-changers Download PDFInfo
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- CN102856045A CN102856045A CN2012102858450A CN201210285845A CN102856045A CN 102856045 A CN102856045 A CN 102856045A CN 2012102858450 A CN2012102858450 A CN 2012102858450A CN 201210285845 A CN201210285845 A CN 201210285845A CN 102856045 A CN102856045 A CN 102856045A
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- diversion box
- load tap
- water conservancy
- conservancy diversion
- oil
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Abstract
The invention provides an oil filtering structure for on-load tap-changers, which comprises a moving contact and a fixed contact, wherein the moving contact is arranged on a driving shaft, the fixed contact is fixed on the inner wall of an on-load tap-changer, a diversion box is arranged around the moving contact, the diversion box is arranged on the driving shaft, an assistant diversion box matched with the a box opening of the diversion box is arranged around the fixed contact, the assistant diversion box is arranged on the inner wall of the on-load tap-changer, the diversion box is provided with an oil suction port, and the oil suction port is connected with an oil filter through a pipe. The oil filtering structure disclosed by the invention can rapidly carry out filtering on insulating oil and save energy consumption at the same time.
Description
Technical field
The present invention relates to the oil filtering unit field, especially, is a kind of oil filtering structure on load tap changer.
Background technology
On load tap changer is a kind of switching device that constant voltage is provided when the load variations for transformer.Its basic principle is exactly in the situation that guarantee not interrupt load electric current, realizes the switching between the tap in the Transformer Winding, thereby changes the number of turn of winding, i.e. the voltage ratio of transformer finally realizes the purpose of pressure regulation.On-load tap changers of transformers online oil filtration machine is to switch in the grease chamber in order to solve on-load voltage regulating switch, because arcing, insulating oil very easily decomposes, wears out and produces a large amount of free carbons and metal fragment etc., cause insulating oil breakdown voltage to reduce, the product of dielectric property variation the problems referred to above research and development.It is mainly used in the filtration of transformer on-load tap changer insulating oil.Equipment can be in the situation that the normal operation of transformer, switch instances automatic on-line oil strain according to tap changer, effectively remove free carbon, moisture, cracking impurity and acid in the oil, recover dielectric strength and the performance of tap switch oil, improve on load tap changer Operation safety, reliability, greatly reduce the transformer frequency of power cut, improve power supply reliability.
After on load tap changer switches operation, because free carbon, moisture, cracking impurity and acid that electric arc produces are scattered in the whole grease chamber, the insulating oil that the online oil filtration machine will start in will minute oil receiving chamber thoroughly filters, and whole filter process expends considerable time, so efficient is lower.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of on load tap changer oil filtering structure, this oil filtering structure can filter insulating oil fast, energy efficient.
The technical solution adopted for the present invention to solve the technical problems is:
This on load tap changer oil filtering structure comprises the contact of deciding that is arranged on the moving contact on the driving shaft and is fixed on the on load tap changer inwall, be provided with the water conservancy diversion box around the described moving contact, described water conservancy diversion box is arranged on the described driving shaft, describedly decide to be provided with around the contact the secondary water conservancy diversion box that cooperates with described water conservancy diversion box box mouth, described secondary water conservancy diversion box is arranged on the on load tap changer inwall, be provided with inlet port on the described water conservancy diversion box, described inlet port is connected with an oil filter by pipeline.
As preferably, the box mouth of described secondary water conservancy diversion box is greater than described water conservancy diversion box box mouth.
As preferably, described inlet port and the coaxial setting of described driving shaft are provided with connecting mechanism for rotating on the described pipeline.
The invention has the advantages that:
When the impurity that electric arc is produced enters insulating oil around the contact, in time siphoned away by described inlet port and carry out the oil strain processing, because impurity by very first time filtering, therefore need not the insulating oil in the switching grease chamber of whole on load tap changer is all filtered, a large amount of electric energy have therefore been saved.
Description of drawings
Fig. 1 is the axle geodesic structure schematic diagram of an embodiment of this on load tap changer oil filtering structure;
Fig. 2 is the plan structure schematic diagram of this on load tap changer oil filtering structure Fig. 1 embodiment.
Among the figure: 100, water conservancy diversion box; 110, pipeline; 111, connecting mechanism for rotating; 150, moving contact; 200, secondary water conservancy diversion box; 250, decide contact; 300, driving shaft.
Embodiment
The present invention is further described below in conjunction with drawings and Examples:
Figure 1 shows that the axle geodesic structure shape schematic diagram of an embodiment of this on load tap changer oil filtering structure.Fig. 2 is the plan structure schematic diagram of this on load tap changer oil filtering structure Fig. 1 embodiment.Problem is now set forth as same embodiment Fig. 1, Fig. 2 to the present invention for convenience of explanation.
In the present embodiment, what this on load tap changer oil filtering structure comprised the moving contact 150 that is arranged on the driving shaft 300 and was fixed on the on load tap changer inwall decides contact 250, be provided with water conservancy diversion box 100 around the described moving contact 150, described water conservancy diversion box 100 is arranged on the described driving shaft 300, describedly decide to be provided with the secondary water conservancy diversion box 200 that cooperates with described water conservancy diversion box 100 box mouths around the contact 250, described secondary water conservancy diversion box 200 is arranged on the on load tap changer inwall, be provided with inlet port on the described water conservancy diversion box 100, described inlet port is connected with an oil filter by pipeline 110, and described oil filter is provided with return duct and is connected with on-load shunting switch.
Described oil filter carries out the oil strain operation until cut out after the remaining oily filtering that contains impurity in described pipeline after the finishing switching before change action is opened.
Above-mentioned on load tap changer oil filtering structure, the box mouth of described secondary water conservancy diversion box 200 is greater than described water conservancy diversion box 100 box mouths, because insulating oil flows to water conservancy diversion box 100 from secondary water conservancy diversion box 200, therefore only diffusion in water conservancy diversion box 100 of impurity, less water conservancy diversion box 100, better to the iris action of the diffusion of impurity.
Above-mentioned on load tap changer oil filtering structure, described inlet port and described driving shaft 300 coaxial settings are provided with connecting mechanism for rotating 111 on the described pipeline 110, prevent that described pipeline 110 from blocking because corner is excessive.
The principle of above-mentioned on load tap changer oil filtering structure:
As described in Fig. 2 arrow, during on load tap changer work, oil filter is started working, the insulating oil of cleaning enters water conservancy diversion box 100 through secondary water conservancy diversion box 200, contact is taken away because of the impurity that electric arc produces, the insulating oil that contains impurity enters oil filter and filters, until after on load tap changer finishes change action, oil filter will cut out after the remaining oily filtering that contains impurity in the described pipeline 110.Because whole process is only with the fraction insulation oil filter, and reach identical filtration purpose, therefore greatly saved the energy.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. on load tap changer oil filtering structure, what comprise the moving contact (150) that is arranged on the driving shaft (300) and be fixed on the on load tap changer inwall decides contact (250), it is characterized in that:
Described moving contact (150) is provided with water conservancy diversion box (100) on every side, described water conservancy diversion box (100) is arranged on the described driving shaft (300), describedly decide contact (250) and be provided with the secondary water conservancy diversion box (200) that cooperates with described water conservancy diversion box (100) box mouth on every side, described secondary water conservancy diversion box (200) is arranged on the on load tap changer inwall, be provided with inlet port on the described water conservancy diversion box (100), described inlet port is connected with an oil filter by pipeline (110), and described oil filter is provided with return duct and is connected with on-load shunting switch.
2. on load tap changer oil filtering structure according to claim 1, it is characterized in that: the box mouth of described secondary water conservancy diversion box (200) is greater than described water conservancy diversion box (100) box mouth.
3. on load tap changer oil filtering structure according to claim 1, it is characterized in that: described inlet port and the coaxial setting of described driving shaft (300) are provided with connecting mechanism for rotating (111) on the described pipeline (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285845.0A CN102856045B (en) | 2012-08-13 | 2012-08-13 | A kind of oil filtering structure on load tap changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285845.0A CN102856045B (en) | 2012-08-13 | 2012-08-13 | A kind of oil filtering structure on load tap changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102856045A true CN102856045A (en) | 2013-01-02 |
| CN102856045B CN102856045B (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210285845.0A Expired - Fee Related CN102856045B (en) | 2012-08-13 | 2012-08-13 | A kind of oil filtering structure on load tap changer |
Country Status (1)
| Country | Link |
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| CN (1) | CN102856045B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000077240A (en) * | 1998-08-27 | 2000-03-14 | Tajima Seisakusho:Kk | Tap selector of tap switcher when loaded |
| CN202796327U (en) * | 2012-08-13 | 2013-03-13 | 吴江市东泰电力特种开关有限公司 | Load tap changer oil filter structure |
-
2012
- 2012-08-13 CN CN201210285845.0A patent/CN102856045B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000077240A (en) * | 1998-08-27 | 2000-03-14 | Tajima Seisakusho:Kk | Tap selector of tap switcher when loaded |
| CN202796327U (en) * | 2012-08-13 | 2013-03-13 | 吴江市东泰电力特种开关有限公司 | Load tap changer oil filter structure |
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| Publication number | Publication date |
|---|---|
| CN102856045B (en) | 2016-02-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Zhongquan Inventor after: Wang Yong Inventor after: Yang Min Inventor after: Zhao Haibing Inventor after: Sun Haitao Inventor after: Gao Wenhao Inventor after: Tian Huaiyuan Inventor after: Ge Yang Inventor before: Li Ziwei |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151214 Address after: 253000 Dongfeng East Road, Dezhou, Shandong, No. 41 Applicant after: DEZHOU POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER Co. Applicant after: State Grid Corporation of China Address before: Wujiang City, Suzhou City, Jiangsu province 215212 Lili town nine South Street No. 15 Applicant before: Wujiang Dongtai Electric Power Special Switch Co.,Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 |