CN204375981U - Instrument transformer power supply lead wire is anti-connects empty sleeve pipe - Google Patents
Instrument transformer power supply lead wire is anti-connects empty sleeve pipe Download PDFInfo
- Publication number
- CN204375981U CN204375981U CN201420668865.0U CN201420668865U CN204375981U CN 204375981 U CN204375981 U CN 204375981U CN 201420668865 U CN201420668865 U CN 201420668865U CN 204375981 U CN204375981 U CN 204375981U
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- power supply
- lead wire
- instrument transformer
- supply lead
- 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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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model belongs to mutual inductor interstar connection device technique field, discloses instrument transformer power supply lead wire and prevents connecing empty sleeve pipe.Its technical characteristics is: comprise copper pipe body, described copper pipe end of body is provided with wiring breach, choose the copper pipe body that internal diameter is more bigger than power line insulating barrier external diameter, from power cord ends, copper pipe body is inserted in, and first copper pipe body is placed in power line and opens below connection jaws place, after winding instrument transformer power supply lead wire; Instrument transformer power supply lead wire is snapped in wiring breach, with hydraulic tongs, copper pipe body is compressed, and be wrapped in the external side of copper pipe with insulating tape, before winding insulating tape, copper pipe body two ends seal by the most handy electric insulating sealant, like this, the power supply lead wire of instrument transformer and power line can not loose or dislocations, measure numerical value more accurate.
Description
Technical field
The utility model belongs to mutual inductor interstar connection device technique field, relates to instrument transformer power supply lead wire specifically and prevents connecing empty sleeve pipe.
Background technology
In the circuit of power consumption, current/voltage is big and small differs greatly, and measuring for ease of secondary meter needs to be converted to more unified electric current, and the voltage in addition on circuit is all higher is breakneck as directly measured.Current transformer just plays the effect of unsteady flow and electrical isolation.Displaying Meter major part is the current voltmeter of pointer-type, so the secondary current great majority of current transformer are ampere levels.Therefore, in supply line, the use of instrument transformer is very many.The power supply of instrument transformer is generally obtained by main power line, power line is generally the aluminum steel with insulating barrier, and the power supply lead wire of instrument transformer is generally and moulds copper cash, and copper aluminium contact more easily oxidation causes loose contact, and colligation easily loosens or comes off, the accuracy of impact metering.
Utility model content
The technical problem that the utility model solves just is to provide a kind of instrument transformer power supply lead wire of power supply wiring loose or dislocation that can prevent and prevents connecing empty sleeve pipe.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is: comprise copper pipe body, and described copper pipe end of body is provided with wiring breach.
Its additional technical feature is:
Described wiring breach is square or semicircle;
Described wiring breach periphery is provided with round and smooth flanging;
Be provided with at described copper tubular body and ward off tin layers.
The instrument transformer power supply lead wire that the utility model provides is anti-connects empty sleeve pipe, compared with the existing technology comparatively have the following advantages: one, owing to comprising copper pipe body, described copper pipe end of body is provided with wiring breach, choose the copper pipe body that internal diameter is more bigger than power line insulating barrier external diameter, from power cord ends, copper pipe body is inserted in, and first copper pipe body is placed in power line and opens below connection jaws place, after winding instrument transformer power supply lead wire; Instrument transformer power supply lead wire is snapped in wiring breach, with hydraulic tongs, copper pipe body is compressed, and be wrapped in the external side of copper pipe with insulating tape, before winding insulating tape, copper pipe body two ends seal by the most handy electric insulating sealant, like this, the power supply lead wire of instrument transformer and power line can not loose or dislocations, measure numerical value more accurate; Its two, because described wiring breach is square or semicircle; Described wiring breach periphery is provided with round and smooth flanging, avoids copper pipe body and damage is caused to instrument transformer power supply lead wire; Its three, be provided with at described copper tubular body and ward off tin layers, avoid the oxidation of instrument transformer power supply lead wire end and power line.
Accompanying drawing explanation
Fig. 1 prevents the structural representation connecing empty sleeve pipe for the instrument transformer power supply lead wire that the utility model provides;
Fig. 2 is the structural representation that the instrument transformer power supply lead wire of another kind of wiring breach prevents connecing empty sleeve pipe;
The structural representation of Fig. 3 to be wiring breach with the instrument transformer power supply lead wire of flanging prevent connecing empty sleeve pipe;
Fig. 4 is the A of Fig. 3---A cutaway view;
Fig. 5 is the B of Fig. 3---B cutaway view.
Embodiment
Below in conjunction with accompanying drawing, the instrument transformer power supply lead wire that the utility model proposes is prevented that connecing empty sleeve pipe is described further.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, instrument transformer power supply lead wire prevents the structural representation connecing empty sleeve pipe.This instrument transformer power supply lead wire prevents that connecing empty sleeve pipe comprises copper pipe body 1, is provided with wiring breach 2 in copper pipe body 1 end.Choose the copper pipe body 1 that internal diameter is more bigger than power line insulating barrier external diameter, from power cord ends, copper pipe body is inserted in, and first copper pipe body is placed in power line and opens below connection jaws place, after winding instrument transformer power supply lead wire; Instrument transformer power supply lead wire is snapped in wiring breach, with hydraulic tongs, copper pipe body is compressed, and be wrapped in the external side of copper pipe with insulating tape, before winding insulating tape, copper pipe body two ends seal by the most handy electric insulating sealant, like this, the power supply lead wire of instrument transformer and power line can not loose or dislocations, measure numerical value more accurate.
Wiring breach 2 can be square, also can be semicircle as shown in Figure 2.The periphery of wiring breach 2 is provided with round and smooth flanging 3, avoids copper pipe body and damage is caused to instrument transformer power supply lead wire.
Be provided with in the inside of copper pipe body 1 and ward off tin layers 4, avoid the oxidation of instrument transformer power supply lead wire end and power line.
The method connecing empty sleeve pipe connecting power line comprises the following steps: to use above-mentioned instrument transformer power supply lead wire to prevent
The first step, chooses copper pipe body
According to the external diameter of power line insulating barrier, choose copper pipe body 1, the internal diameter of copper pipe body 1 is more bigger than the external diameter of power line insulating barrier;
Second step, by copper pipe body cover on the power line
From power cord ends, copper pipe body 1 is inserted in, and first copper pipe body 1 is placed in power line and opens below connection jaws place;
3rd step, on the power line opening
Open connection jaws on the power line;
4th step, is wound around instrument transformer power supply lead wire
The end convolution of instrument transformer power supply lead wire is wrapped on the opening of power line;
5th step, mobile copper pipe body
Along power line, copper pipe body 1 is moved to connection jaws side, and instrument transformer power supply lead wire is snapped in wiring breach 2;
6th step, compresses copper pipe body
With hydraulic tongs, copper pipe body is compressed;
7th step, insulation processing
Insulating tape is wound around in the external side of copper pipe.
Certainly, in order to avoid instrument transformer power supply lead wire is aging, after copper pipe body is compressed, at described copper pipe body two ends perfusion electric insulating sealant.
Protection range of the present utility model is not only confined to above-described embodiment, as long as structure and the utility model instrument transformer power supply lead wire are anti-, to connect empty sleeve structure identical, just drops on the scope of the utility model protection.
Claims (4)
1. instrument transformer power supply lead wire is anti-connects empty sleeve pipe, it is characterized in that: comprise copper pipe body, described copper pipe end of body is provided with wiring breach.
2. instrument transformer power supply lead wire according to claim 1 is anti-connects empty sleeve pipe, it is characterized in that: described wiring breach is square or semicircle.
3. instrument transformer power supply lead wire according to claim 1 is anti-connects empty sleeve pipe, it is characterized in that: described wiring breach periphery is provided with round and smooth flanging.
4. instrument transformer power supply lead wire according to claim 1 is anti-connects empty sleeve pipe, it is characterized in that: be provided with at described copper tubular body and ward off tin layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420668865.0U CN204375981U (en) | 2014-11-11 | 2014-11-11 | Instrument transformer power supply lead wire is anti-connects empty sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420668865.0U CN204375981U (en) | 2014-11-11 | 2014-11-11 | Instrument transformer power supply lead wire is anti-connects empty sleeve pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204375981U true CN204375981U (en) | 2015-06-03 |
Family
ID=53332171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420668865.0U Expired - Fee Related CN204375981U (en) | 2014-11-11 | 2014-11-11 | Instrument transformer power supply lead wire is anti-connects empty sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204375981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300235A (en) * | 2014-11-11 | 2015-01-21 | 国网河北饶阳县供电公司 | Virtual connection prevention sleeve for power lead of mutual inductor and method for connecting power cord |
-
2014
- 2014-11-11 CN CN201420668865.0U patent/CN204375981U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300235A (en) * | 2014-11-11 | 2015-01-21 | 国网河北饶阳县供电公司 | Virtual connection prevention sleeve for power lead of mutual inductor and method for connecting power cord |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20171111 |