CN109142801A - A kind of Three phase short jumper device - Google Patents
A kind of Three phase short jumper device Download PDFInfo
- Publication number
- CN109142801A CN109142801A CN201810654283.XA CN201810654283A CN109142801A CN 109142801 A CN109142801 A CN 109142801A CN 201810654283 A CN201810654283 A CN 201810654283A CN 109142801 A CN109142801 A CN 109142801A
- Authority
- CN
- China
- Prior art keywords
- conducting wire
- rotary shaft
- bayonet
- reset spring
- ground line
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The present invention relates to a kind of Three phase short jumper devices, comprising: conducting wire A, conducting wire B, conducting wire C, ground line, the ground line is for the conducting wire A, conducting wire B, conducting wire C to be grounded；Further include being installed in the conducting wire A, conducting wire B, conducting wire C, the expansion bend on ground line, is installed with loading part, reset spring, rotary shaft, limit switch, conducting wire bayonet, the first conducting wire, the second conducting wire inside the expansion bend；The rotary shaft is located at the center on loading part, and limit switches are arranged in rotary shaft；Conducting wire is wound on the rotary shaft, and the center of rotary shaft is hauled by reset spring, and when drawing conducting wire, rotary shaft rotation drives reset spring to stretch.When the length needed for conducting wire reaches test, length is fixed by limit switch；When shrinking conducting wire, limit switch is closed, conducting wire is shunk in reset spring pulling force effect line around rotary shaft.
Description
Technical field
The present invention relates to technical field of electric power, and in particular to a kind of Three phase short jumper device.
Background technique
Three-phase shorting stub is widely used in electric system preventive trial, and common three-phase shorting stub has four root long degree
Consistent conducting wire composition, the structure of three-phase shorting stub in the prior art are as shown in Figure 1.
The three-phase shorting stub of the prior art since four conductor lengths are consistent, in main transformer Insulation Test,
Often due to it is inadequate to be shorted line length, results in the need for using remaining 5-6 conducting wire Three-Phase Transformer winding is subjected to short circuit ground connection,
It not only increases testing crew to plug into time of conducting wire, and increases operating risk.Therefore, existing three-phase shorting stub is in main transformer
It is inconvenient for use in depressor preventive trial.
Summary of the invention
The present invention in order to overcome the deficiencies of the prior art, provides a kind of Three phase short jumper device, can use one
Main transformer three-phase windings are shorted in the case where root three-phase shorting stub and are grounded.
In order to reach above-mentioned technical effect, technical scheme is as follows: including: that three-phase shorting stub includes conducting wire A, leads
Line B, conducting wire C and ground line add expansion bend in the short wiring of three-phase, the expansion bend be internally provided with loading station,
Reset spring, rotary shaft, limit switch, conducting wire bayonet；Rotary shaft is located at the center on loading station, and rotary shaft is provided with limit
Switch, the expansion bend are additionally provided with the first bayonet, the second bayonet, the first conducting wire and the second conducting wire, first conducting wire and the
Two conducting wires are pierced by from the first bayonet, the second bayonet respectively.
Expansion bend working principle: conducting wire is wound on the rotary shaft, and the center of rotary shaft is hauled by reset spring, when drawing conducting wire
When, rotary shaft rotation drives reset spring to stretch.It, will by limit switch when the length needed for conducting wire reaches test
Length is fixed；When shrinking conducting wire, limit switch is closed, conducting wire is received in reset spring pulling force effect line around centre rotational axis
Contracting.
Testing crew can adjust the length of shorting stub according to field demand, and when the length of shorting stub meets test needs
When, which can be fixed by limit switch by line length is shorted.When after the test, the reset built in expansion bend can be passed through
Shorting stub is withdrawn expansion bend by spring.
Preferably, it is shorted line color and uses yellowish green red-black four kinds of colors, be convenient for and A, B, C three-phase and ground in electric system
Line color coincide.
Compared with prior art, the beneficial effect of technical solution of the present invention is: since three-phase shorting stub is scalable, test
Three-Phase Transformer winding disposably can be shorted ground connection by stretching shorting stub by personnel, without plugging between winding, and
Shorting stub can retract in expansion bend automatically, be not necessarily to testing crew take-up, convenient for arranging.
Detailed description of the invention
Fig. 1 is the wiring schematic diagram of three-phase shorting stub in the prior art.
Fig. 2 is the wiring schematic diagram of three-phase shorting stub of the invention.
Fig. 3 is expansion bend structure chart of the invention.
Appended drawing reference is as follows in figure:
In Fig. 3,1- loading part；2- rotary shaft；3- limit switch；The first conducting wire of 4-；The second conducting wire of 5-；The first bayonet of 6-；7-
Two bayonets.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
As shown in Fig. 2, a kind of Three phase short jumper device, including conducting wire A, conducting wire B, conducting wire C, ground line and installation
Expansion bend on the conducting wire A, conducting wire B, conducting wire C, ground line, the ground line is for by the conducting wire A, conducting wire B, conducting wire C
Ground connection；As shown in figure 3, being installed with loading part 1, reset spring (not shown), rotary shaft 2, limit switch inside the expansion bend
3, conducting wire bayonet, the first conducting wire 4, the second conducting wire 5；The rotary shaft 2 is located at the center on loading part 1, and rotary shaft setting is limited
Bit switch.
Further, the conducting wire bayonet includes the first bayonet 6, the second bayonet 7, first conducting wire 4 and the second conducting wire 5
It is pierced by respectively from the second bayonet 7, the first bayonet 6.
Further, first conducting wire 4 in expansion bend and the second conducting wire 5 respectively with conducting wire A, conducting wire B, conducting wire
C, ground line connection.
Further, it is shorted line color and uses yellowish green red three kinds of colors, convenient for being kissed with A, B, C three-phase color in electric system
It closes.
When wiring, first conducting wire 4 and the second conducting wire 5 are wrapped in rotary shaft 2, reset spring is leaned at the center of rotary shaft 2
It hauls, when drawing first conducting wire 4 and the second conductors 5, rotary shaft 2 rotates, and reset spring is driven to stretch.When leading
When length needed for line reaches test, length is fixed by limit switch 3；When shrinking conducting wire, limit switch 3 is closed, is led
Line is shunk in reset spring pulling force effect line around centre rotational axis.
Described in attached drawing positional relationship for only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be to this hair
The restriction of bright embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Other various forms of variations or variation out.There is no necessity and possibility to exhaust all the enbodiments.It is all in the present invention
Spirit and principle within made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the claims in the present invention
Within the scope of shield.
Claims (5)
1. a kind of Three phase short jumper device, comprising: conducting wire A, conducting wire B, conducting wire C, ground line, the ground line is for by institute
State conducting wire A, conducting wire B, conducting wire C ground connection, it is characterised in that: further include be installed in the conducting wire A, conducting wire B, conducting wire C, on ground line
Expansion bend, loading part is installed with inside the expansion bend, reset spring, rotary shaft, limit switch, conducting wire bayonet, first is led
Line, the second conducting wire；The rotary shaft is located at the center on loading part, and limit switches are arranged in rotary shaft.
2. a kind of Three phase short jumper device according to claim 1, it is characterised in that: the conducting wire bayonet includes the
One bayonet and the second bayonet, first conducting wire and the second conducting wire are pierced by from the second bayonet, the first bayonet respectively.
3. a kind of Three phase short jumper device according to claim 1 or 2, it is characterised in that: be located at the expansion bend
Interior first conducting wire and the second conducting wire are connected with conducting wire A, conducting wire B, conducting wire C, ground line respectively.
4. a kind of Three phase short jumper device according to claim 1 or 2, it is characterised in that: the conducting wire A, conducting wire
B, yellow, green, red, black four kinds of colors are respectively adopted in conducting wire C, ground line.
5. a kind of Three phase short jumper device according to claim 1 or 2 or 3, it is characterised in that: led described first
Line and the second conducting wire are wrapped in the rotary shaft, and the center of the rotary shaft is hauled by reset spring, when drawing conducting wire,
Rotary shaft rotation, drives the reset spring to stretch；When the length needed for first conducting wire and the second conducting wire reach test,
Length is fixed by the limit switch；When shrinking first conducting wire and the second conducting wire, the limit switch is closed, the
One conducting wire and the second conducting wire are shunk in reset spring pulling force effect line around the rotary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654283.XA CN109142801A (en) | 2018-06-22 | 2018-06-22 | A kind of Three phase short jumper device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654283.XA CN109142801A (en) | 2018-06-22 | 2018-06-22 | A kind of Three phase short jumper device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109142801A true CN109142801A (en) | 2019-01-04 |
Family
ID=64802256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810654283.XA Pending CN109142801A (en) | 2018-06-22 | 2018-06-22 | A kind of Three phase short jumper device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109142801A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205429380U (en) * | 2015-11-25 | 2016-08-03 | 国网福建省电力有限公司 | Experimental short termination |
-
2018
- 2018-06-22 CN CN201810654283.XA patent/CN109142801A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205429380U (en) * | 2015-11-25 | 2016-08-03 | 国网福建省电力有限公司 | Experimental short termination |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
|
| RJ01 | Rejection of invention patent application after publication |