CN102360890B - Current transformer with one-circle primary winding - Google Patents
Current transformer with one-circle primary winding Download PDFInfo
- Publication number
- CN102360890B CN102360890B CN 201110325816 CN201110325816A CN102360890B CN 102360890 B CN102360890 B CN 102360890B CN 201110325816 CN201110325816 CN 201110325816 CN 201110325816 A CN201110325816 A CN 201110325816A CN 102360890 B CN102360890 B CN 102360890B
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- Prior art keywords
- current transformer
- oil conservator
- primary winding
- insulator
- conductive rod
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Abstract
The invention relates to a current transformer with a one-circle primary winding, belonging to the technical field of a transformer. The technical scheme provided by the invention is as follows: the current transformer comprises an expander (1), a conductive rod (2), an oil conservator (3), an insulator (4) and an oil tank (5); the expander is arranged above the oil conservator; the insulator is arranged below the oil conservator; the conductive rod is arranged on the oil conservator; the insulator is arranged on the oil tank; the conductive rod is connected with the primary winding; the primary winding is provided with two semicircular tubes; wiring pieces (6) are welded at the upper ends of the two semicircular tubes, respectively; the two wiring pieces are commonly connected to the conductive rod; a nut is arranged between the two wiring pieces, and the two wiring pieces are arranged by means of being separated by the nut (7); and the two wiring pieces are fastened on the conductive rod. The current transformer provided by the invention is used for overcoming the problem that the unqualified temperature rise is easily caused when the traditional current transformer with the large current ratio takes the primary winding as one circle; meanwhile, the current transformer is simple in operation, and is economic and practical without increasing sizes of parts and expanding the space of the oil conservator.
Description
Technical field
The current transformer that to the present invention relates to an a kind of winding be a circle belongs to the instrument transformer technical field.
Background technology
At present, the large current ratio current transformer of background technology, when one time winding was a circle, once the conductive plate of lead-in wire was fastening with nut and conducting rod, and contact area is little, and primary current is very large, cause contact electricity herein close larger, the temperature rise limit value that is above standard easily, instrument transformer temperature rise, to have a strong impact on the performance of instrument transformer, even accident occurs.
Summary of the invention
The current transformer that to the purpose of this invention is to provide winding be a circle enhances and adds the contact area, and it is close to reduce the contact electricity, reduces temperature rise, solves the problems referred to above that background technology exists.
Technical scheme of the present invention is: a winding is the current transformer of a circle, comprise expander, conducting rod, oil conservator, insulator, fuel tank, expander is arranged on the oil conservator top, and insulator is arranged on the oil conservator below, conducting rod is arranged on the oil conservator, and insulator is arranged on above the fuel tank; Conducting rod connects a winding, and a winding is two semi-circular tubes, and the upper end of two semi-circular tubes is welded with respectively a lug plate, two lug plates are connected on the conducting rod jointly, between two lug plates nut is set, arranged apart with nut, two lug plates all are fastened on the conducting rod.
Two lug plates of a winding leads of the present invention are arranged apart with nut, under the prerequisite that does not increase the oil conservator space, increased the contact area of lug plate, and it is close to reduce electricity, reduce temperature rise, also make lug plate more firm simultaneously.
Good effect of the present invention: when the current transformer that the present invention has overcome traditional large current ratio once is a circle, the easy underproof problem of temperature rise, simultaneously simple to operate, need not increase element size, need not to increase the oil conservator space, economical and practical.
Description of drawings
Fig. 1 is the embodiments of the invention schematic appearance;
Fig. 2 is embodiments of the invention conducting rod connection diagram;
Among the figure: expander 1, conducting rod 2, oil conservator 3, insulator 4, fuel tank 5, lug plate 6, nut 7.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described by embodiment.
A winding is the current transformer of a circle, comprises expander 1, conducting rod 2, oil conservator 3, insulator 4, fuel tank 5, and expander is arranged on the oil conservator top, and insulator is arranged on the oil conservator below, and conducting rod is arranged on the oil conservator, and insulator is arranged on above the fuel tank; Conducting rod connects a winding, and a winding is two semi-circular tubes, and the upper end of two semi-circular tubes is welded with respectively a lug plate 6, two lug plates are connected on the conducting rod jointly, between two lug plates nut is set, arranged apart with nut 7, two lug plates all are fastened on the conducting rod.
Two lug plates of a winding leads of the present invention are arranged apart with nut, under the prerequisite that does not increase the oil conservator space, increased the contact area of lug plate, and it is close to reduce electricity, reduce temperature rise, also make lug plate more firm simultaneously.
Claims (1)
1. winding current transformer that is a circle, it is characterized in that comprising expander (1), conducting rod (2), oil conservator (3), insulator (4), fuel tank (5), expander is arranged on the oil conservator top, insulator is arranged on the oil conservator below, conducting rod is arranged on the oil conservator, and insulator is arranged on above the fuel tank; Conducting rod connects a winding, a winding is two semi-circular tubes, the upper end of two semi-circular tubes is welded with respectively a lug plate (6), two lug plates are connected on the conducting rod jointly, between two lug plates nut is set, arranged apart with nut (7), two lug plates all are fastened on the conducting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110325816 CN102360890B (en) | 2011-10-25 | 2011-10-25 | Current transformer with one-circle primary winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110325816 CN102360890B (en) | 2011-10-25 | 2011-10-25 | Current transformer with one-circle primary winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102360890A CN102360890A (en) | 2012-02-22 |
| CN102360890B true CN102360890B (en) | 2013-01-16 |
Family
ID=45586178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110325816 Expired - Fee Related CN102360890B (en) | 2011-10-25 | 2011-10-25 | Current transformer with one-circle primary winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102360890B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017217150A1 (en) * | 2017-09-27 | 2019-03-28 | Siemens Aktiengesellschaft | High voltage device with ceramic spacers and its use |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62123706A (en) * | 1985-11-22 | 1987-06-05 | Mitsubishi Electric Corp | Porcelain-clad current transformer |
| CN101593619B (en) * | 2008-06-01 | 2012-05-09 | 江苏思源赫兹互感器有限公司 | Vertical current transformer |
| CN201282027Y (en) * | 2008-12-30 | 2009-07-29 | 山东泰开互感器有限公司 | Connection device for primary conductor of current transformer |
| CN201369239Y (en) * | 2009-02-02 | 2009-12-23 | 保定天威集团有限公司 | High-voltage large-current transformer |
| CN101752073B (en) * | 2010-02-08 | 2012-09-05 | 湖南华联火炬电瓷电器有限公司 | Method and device for connecting primary conductive terminal for current transformer |
| CN202258763U (en) * | 2011-10-25 | 2012-05-30 | 保定天威集团有限公司 | Current transformer with one turn of primary winding |
-
2011
- 2011-10-25 CN CN 201110325816 patent/CN102360890B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102360890A (en) | 2012-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20141025 |
|
| EXPY | Termination of patent right or utility model |