CN203895238U - Novel electric conducting device for current transformer - Google Patents
Novel electric conducting device for current transformer Download PDFInfo
- Publication number
- CN203895238U CN203895238U CN201420348179.5U CN201420348179U CN203895238U CN 203895238 U CN203895238 U CN 203895238U CN 201420348179 U CN201420348179 U CN 201420348179U CN 203895238 U CN203895238 U CN 203895238U
- Authority
- CN
- China
- Prior art keywords
- electric conducting
- current transformer
- pressing plate
- copper
- strap wire
- 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
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Abstract
The utility model provides a novel electric conducting device for a current transformer. The novel electric conducting device improves the one-time electric conducting ability of the current transformer. According to the novel electric conducting device, pressing plates are distributed on the two sides of a copper strap wire, the middle of each pressing plate is compressed through a nut, the two ends of each pressing plate are compressed through bolt assemblies, and therefore the copper strap wire, the pressing plates, the nuts and a wiring terminal form an electric conducting path. The wiring terminal, the pressing plates and the nuts are made of red copper, tin plating is carried out on the surface of the red copper, and therefore contact resistance can be reduced.
Description
(1) technical field
The utility model relates to a kind of current transformer electric installation, belongs to current transformer field.
(2) background technology
35kV oil immersed erected current transformer Primary Conductor adopts multiply copper strap wire and around structure, the electric connection mode nut crimping conductive structure between copper strap wire and binding post.Common conductive pressing plate is that a groove type plate coordinates dull and stereotyped a use, and copper strap wire is arranged in groove, with dull and stereotyped and nut, compresses.Because pressing plate only has compression in centre, two ends are without fixing, and the contact between copper strap wire and pressing plate cannot guarantee, the contact resistance between conduction joint face is wayward, very easily occur because contact resistance causes greatly the too high fault of product primary connection terminal temperature rise, therefore need research and development novel conductive device badly.
(3) summary of the invention
The design's object is a kind of current transformer copper strap wire structure Primary Conductor electric installations of research and development, to solve copper strap wire and the wayward problem of binding post connecting portion contact resistance.
The design solves the technical scheme that its technical problem takes: in copper strap wire both sides, plate pressing plate is set, increases bolt compress at pressing plate two ends.Increase hold-down bolt rear fender and compress mode by originally a bit compressing and increase to 3 compressions.Binding post, pressing plate and copper nut adopt red copper material, and surface adopts zinc-plated processing.
The design's beneficial effect is, copper strap wire contact both sides pressure is large, and contact resistance is little; Binding post, pressing plate and nut electroplating surfaces with tin, can effectively reduce contact resistance.
(4) accompanying drawing explanation
Fig. 1 novel current transformer electric installation structure chart.
Fig. 2 novel current transformer electric installation pressing plate figure.
In figure, 1. bolt assembly, 2. pressing plate, 3. binding post, 4. copper strap wire, 5. copper nut, 6. oil conservator.
(5) embodiment
Below in conjunction with accompanying drawing, the design's processing, installation and use are further illustrated.
In Fig. 1, shown current transformer electric installation structure situation, binding post (3) is fixing with copper nut (5) through oil conservator (6).Copper strap wire (4) is arranged in binding post (3) both sides, with pressing plate (2), compresses.Pressing plate (2) bolt assembly for two ends (1) is fastening, middle by copper nut (5) compression, forms 3 compressions.Binding post (3), pressing plate (2), copper nut (5) material are red copper, and electroplating surfaces with tin is processed.
3 compression copper strap wire contact both sides pressure are large, and contact resistance is easy to control; Binding post, pressing plate and nut electroplating surfaces with tin, can effectively reduce contact resistance.
Claims (1)
1. a novel current transformer electric installation, is comprised of binding post, copper strap wire, copper nut, pressing plate and bolt assembly, it is characterized in that being arranged in binding post both sides at copper strap wire; Pressing plate is arranged in copper strap wire both sides; Pressing plate two ends are fastening with bolt assembly, in the middle of pressing plate, with copper nut, compress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348179.5U CN203895238U (en) | 2014-06-26 | 2014-06-26 | Novel electric conducting device for current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348179.5U CN203895238U (en) | 2014-06-26 | 2014-06-26 | Novel electric conducting device for current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895238U true CN203895238U (en) | 2014-10-22 |
Family
ID=51721609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420348179.5U Expired - Fee Related CN203895238U (en) | 2014-06-26 | 2014-06-26 | Novel electric conducting device for current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895238U (en) |
-
2014
- 2014-06-26 CN CN201420348179.5U patent/CN203895238U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141022 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |