CN202258763U - Current transformer with one turn of primary winding - Google Patents
Current transformer with one turn of primary winding Download PDFInfo
- Publication number
- CN202258763U CN202258763U CN2011204082680U CN201120408268U CN202258763U CN 202258763 U CN202258763 U CN 202258763U CN 2011204082680 U CN2011204082680 U CN 2011204082680U CN 201120408268 U CN201120408268 U CN 201120408268U CN 202258763 U CN202258763 U CN 202258763U
- Authority
- CN
- China
- Prior art keywords
- conducting rod
- oil conservator
- current transformer
- primary winding
- lug plates
- 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 - Lifetime
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Abstract
The utility model relates to a current transformer with one turn of primary winding, which belongs to the technical field of transformers. The technical scheme is that the current transformer comprises an expander (1), a conducting rod (2), an oil conservator (3), a porcelain bushing (4) and an oil tank (5), wherein the expander is arranged above the oil conservator; the porcelain bushing is arranged below the oil conservator; the conducting rod is arranged on the oil conservator and the porcelain bushing is arranged on the oil tank; the conducting rod is connected with the primary winding which consists of two semi-circular tubes; two lug plates (6) are respectively welded at the upper ends of the two semi-circular tubes and are both connected to the conducting rod; and a nut (7) through which the lug plates are separated is arranged between the two lug plates which are both fastened on the conducting rod. The current transformer provided by the utility model solves the problem of easily unqualified temperature rise caused when the primary winding of a traditional current transformer with large current ratio is one turn, is simple to operate, does not need to increase the sizes of components, as well as the space of the oil conservator, and is economical and practical.
Description
Technical field
The current transformer that it is a circle that the utility model relates to an a kind of winding belongs to the instrument transformer technical field.
Background technology
At present, the big current ratio current transformer of background technology is when one time winding is a circle; Once the conductive plate of lead-in wire is fastening with nut and conducting rod, and contact area is little, and primary current is very big; Cause the contact electricity here close bigger, the temperature rise limit value that is above standard easily, instrument transformer temperature rise; With the performance that has a strong impact on instrument transformer, even accident appears.
The utility model content
The current transformer that it is a circle that the purpose of the utility model provides winding 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.
The technical scheme of the utility model 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 semicircle pipes, and the upper end of two semicircle pipes is welded with a lug plate respectively; 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 utility model 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.
The good effect of the utility model: when the current transformer that the utility model has overcome traditional big 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 embodiment schematic appearance of the utility model;
Fig. 2 is that the embodiment conducting rod of the utility model connects sketch map;
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 utility model is further specified through 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 semicircle pipes, and the upper end of two semicircle pipes is welded with a lug plate 6 respectively; 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 utility model 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, and 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 semicircle pipes; The upper end of two semicircle pipes is welded with a lug plate (6) respectively, and two lug plates are connected on the conducting rod jointly, between two lug plates nut are 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 |
|---|---|---|---|
| CN2011204082680U CN202258763U (en) | 2011-10-25 | 2011-10-25 | Current transformer with one turn of primary winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204082680U CN202258763U (en) | 2011-10-25 | 2011-10-25 | Current transformer with one turn of primary winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258763U true CN202258763U (en) | 2012-05-30 |
Family
ID=46119969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204082680U Expired - Lifetime CN202258763U (en) | 2011-10-25 | 2011-10-25 | Current transformer with one turn of primary winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360890A (en) * | 2011-10-25 | 2012-02-22 | 保定天威集团有限公司 | Current transformer with one-circle primary winding |
-
2011
- 2011-10-25 CN CN2011204082680U patent/CN202258763U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360890A (en) * | 2011-10-25 | 2012-02-22 | 保定天威集团有限公司 | Current transformer with one-circle primary winding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130306 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |