CN202471775U - Short circuit device for wire outlet of transformer winding - Google Patents
Short circuit device for wire outlet of transformer winding Download PDFInfo
- Publication number
- CN202471775U CN202471775U CN 201220121960 CN201220121960U CN202471775U CN 202471775 U CN202471775 U CN 202471775U CN 201220121960 CN201220121960 CN 201220121960 CN 201220121960 U CN201220121960 U CN 201220121960U CN 202471775 U CN202471775 U CN 202471775U
- Authority
- CN
- China
- Prior art keywords
- hold down
- down gag
- pressing
- current
- pressing device
- 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
- 238000004804 winding Methods 0.000 title claims abstract description 16
- 241000237858 Gastropoda Species 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 2
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 1
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002847 impedance measurement Methods 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to a short circuit device for wire outlet of a transformer winding. The device is formed by a first pressing device, a second pressing device, a third pressing device and connection cables, wherein the first pressing device, the second pressing device and the third pressing device are of the same structure. Each pressing device comprises a wire clip and a pressing screw rod arranged in a threaded hole at the upper end of the wire clip, a rotary arm is fixedly arranged at the upper end of the pressing screw rod, a pressing plate is fixedly arranged at the lower end of the pressing screw rod, and a conducting plate corresponding to the pressing plate is arranged at the position of an inner ring at the lower end of the wire clip. A conducting plate of the first pressing device is communicated with a conducting plate of the second pressing device through a connection cable, and a conducting plate of the second pressing device is communicated with a conducting plate of the third pressing device through a connection cable. The short circuit device for wire outlet of the transformer winding reduces contact resistance and ensures electrical and mechanical connection to be stable and reliable.
Description
Technical field
The utility model relates to a kind of short-circuiting means that is used for the Transformer Winding outlet.
Background technology
When transformer is carried out the low-voltage impedance measurement, often use bare copper wire that the winding outlet terminal is carried out short circuit, because of the resulting impedance of line resistance and contact resistance is bigger, and contact resistance is unstable, often makes test findings serious deviation occur.
The utility model content
The utility model technical matters to be solved provides a kind of special-purpose connection cable that the Transformer Winding outlet is carried out steady short-circuit.
The utility model adopts following technical scheme:
The utility model is made up of three identical first hold down gag, second hold down gag, the 3rd hold down gag and connection cables of structure; Described hold down gag comprises wire clamp and is embedded at the clamping screw in the wire clamp upper end snail pit; Described clamping screw upper end be set with spiral arm; Described clamping screw lower end is set with pressing plate, and the interior ring place of described wire clamp lower end is provided with the current-carrying plate of corresponding setting with pressing plate; Be connected through connection cable between the current-carrying plate of the current-carrying plate of described first hold down gag and second hold down gag, be connected through connection cable between the current-carrying plate of the current-carrying plate of described second hold down gag and the 3rd hold down gag.
The good effect of the utility model is following:
Connection cable two ends that the utility model adopts and the exposed metal/bare metal of mid point part are crimped on respectively between three wire clamps and the current-carrying plate thereof.The connecting line cable clip adopts τ shape structure, and the one of which end cooperates the formation pressuring line structure with current-carrying plate, and the exposed metal/bare metal of connection cable is partly compressed; Its other end is provided with longitudinal hole, establishes screw thread in the longitudinal hole and cooperates with clamping screw.Clamping screw is provided with spiral arm at an end in the wire clamp outside, and clamping screw is aimed at current-carrying plate at the inboard pressing plate of wire clamp, and clamping screw is by the spiral arm driven rotary.The pressing plate of clamping screw in wire clamp cooperates with Transformer Winding outlet copper bar with gap between the current-carrying plate; Clamping screw can fully be pressed together current-carrying plate and Transformer Winding outlet copper bar after screwing in; Thereby the minimizing contact resistance guarantees electric and mechanical connection is reliable and stable.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Embodiment
Shown in accompanying drawing 1; The utility model is made up of three identical first hold down gag, second hold down gag, the 3rd hold down gag and connection cables 7 of structure; Described hold down gag comprises wire clamp 1 and is embedded at the clamping screw 3 in the wire clamp 1 upper end snail pit 2; Described clamping screw 3 upper ends be set with spiral arm 4, described clamping screw 3 lower ends are set with pressing plate 5, the interior ring place of described wire clamp 1 lower end is provided with the current-carrying plate 6 with pressing plate 5 corresponding settings; 6 of the current-carrying plate 6 of described first hold down gag and the current-carrying plates of second hold down gag are connected through connection cable 7, and 6 of the current-carrying plate 6 of described second hold down gag and the current-carrying plates of the 3rd hold down gag are connected through connection cable 7.
The two ends of the utility model connection cable 7 and the exposed metal/bare metal of mid point part are crimped on respectively between three hold down gags and the current-carrying plate 6 thereof; Adopt threaded engagement between clamping screw 3 and the hold down gag, clamping screw 3 cooperates with current-carrying plate 6 at the inboard pressing plate of wire clamp Transformer Winding outlet copper bar is compressed.
When the utility model uses connection cable 7; At first clear up Transformer Winding outlet copper bar lower surface; Screw out clamping screw 3 again, make that open gap surpasses copper bar thickness between pressing plate and the current-carrying plate 6 of clamping screw 3, mobile wire clamp makes Transformer Winding outlet copper bar side direction get into open gap between pressing plate and the current-carrying plate 6 of clamping screw 3; Screw in clamping screw 3 at last, current-carrying plate 6 and Transformer Winding outlet copper bar are fully compressed.
The utility model hold down gag adopts τ shape structure, and the one of which end cooperates the formation pressuring line structure with current-carrying plate 6, and the exposed metal/bare metal of connection cable 7 is partly compressed; Its other end is provided with longitudinal hole, establishes screw thread in the longitudinal hole and cooperates with clamping screw 3.Clamping screw 3 is provided with spiral arm at an end in the hold down gag outside, and clamping screw 3 is aimed at current-carrying plate 6 at the inboard pressing plate of wire clamp, and clamping screw 3 is by spiral arm 4 driven rotary.The pressing plate of clamping screw 3 in wire clamp cooperates with Transformer Winding outlet copper bar with gap between the current-carrying plate 6; After screwing in, clamping screw 3 can current-carrying plate 6 and Transformer Winding outlet copper bar fully be pressed together; Thereby the minimizing contact resistance is simultaneously with connection cable 7 and hold down gag secure fixation.
Claims (1)
1. short-circuiting means that is used for the Transformer Winding outlet; It is characterized in that it is made up of three identical first hold down gag, second hold down gag, the 3rd hold down gag and connection cables (7) of structure; Described hold down gag comprises wire clamp (1) and is embedded at the clamping screw (3) in wire clamp (1) the upper end snail pit (2); Described clamping screw (3) upper end be set with spiral arm (4); Described clamping screw (3) lower end is set with pressing plate (5), and the interior ring place of described wire clamp (1) lower end is provided with the current-carrying plate (6) with the corresponding setting of pressing plate (5); Be connected through connection cable (7) between the current-carrying plate (6) of the current-carrying plate of described first hold down gag (6) and second hold down gag, be connected through connection cable (7) between the current-carrying plate (6) of the current-carrying plate of described second hold down gag (6) and the 3rd hold down gag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121960 CN202471775U (en) | 2012-03-28 | 2012-03-28 | Short circuit device for wire outlet of transformer winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121960 CN202471775U (en) | 2012-03-28 | 2012-03-28 | Short circuit device for wire outlet of transformer winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471775U true CN202471775U (en) | 2012-10-03 |
Family
ID=46919927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220121960 Expired - Fee Related CN202471775U (en) | 2012-03-28 | 2012-03-28 | Short circuit device for wire outlet of transformer winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062623A (en) * | 2014-07-03 | 2014-09-24 | 国家电网公司 | Low-voltage-side short circuit device for high-voltage electric transformer |
| CN106841698A (en) * | 2017-01-12 | 2017-06-13 | 国家电网公司 | Short circuit fixture is used in a kind of transformer loss experiment |
-
2012
- 2012-03-28 CN CN 201220121960 patent/CN202471775U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062623A (en) * | 2014-07-03 | 2014-09-24 | 国家电网公司 | Low-voltage-side short circuit device for high-voltage electric transformer |
| CN106841698A (en) * | 2017-01-12 | 2017-06-13 | 国家电网公司 | Short circuit fixture is used in a kind of transformer loss experiment |
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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 ELECTRIC NET CROP. Free format text: FORMER OWNER: SHIJIAZHUANG POWER SUPPLY COMPANY Effective date: 20130410 Owner name: HEBEI ELECTRIC POWER CORPORATION SHIJIAZHUANG POWE Effective date: 20130410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 050091 SHIJIAZHUANG, HEBEI PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130410 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Hebei Electric Power Corporation Patentee after: Shijiazhuang Power Supply Co.,Ltd. Address before: 050091 Shijiazhuang power supply company, No. 529 Zhonghua South Street, Hebei, Shijiazhuang Patentee before: Shijiazhuang Power Supply Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |