CN208570997U - A kind of four end electric current secondary loop shorting stubs - Google Patents
A kind of four end electric current secondary loop shorting stubs Download PDFInfo
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- CN208570997U CN208570997U CN201721366529.0U CN201721366529U CN208570997U CN 208570997 U CN208570997 U CN 208570997U CN 201721366529 U CN201721366529 U CN 201721366529U CN 208570997 U CN208570997 U CN 208570997U
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- short circuit
- copper wire
- electric current
- secondary loop
- end electric
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Abstract
The utility model embodiment provides a kind of four end electric current secondary loop shorting stubs, it include: four short circuit sockets by wrapped with insulation, each short circuit socket is provided with tapped through-hole, and institute's internal screw thread uses metal material, and is connected inside the short circuit socket with a copper wire；A plurality of copper wire, outside are enclosed with insulating materials, and each copper wire both ends are connected with the copper wire inside two adjacent short circuit sockets respectively；Four plug pins have external screw thread with metallic rod in the metallic rod, for being merged into capable be electrically connected with the internal screw thread matching for being shorted socket.The utility model embodiment has the advantages that connection is reliable, easy to operate, easy to carry.
Description
Technical field
The utility model is applied to the maintenance field of substation equipment, short more particularly to a kind of four end electric current secondary loops
Wiring.
Background technique
In the maintenance to substation or power plant, when working on the secondary loop of mutual inductor of electrification, it should take
Following safety measure: a) forbid opening a way the secondary side of current transformer.B) short circuit current mutual inductor secondary winding should use short
Road piece or shorting stub, short circuit should be properly reliable, forbid being wound with conducting wire.At present in busbar protective device, based Cb Failure Protection, standby
From in protection unit regular inspection work of insuring, when being related to being shorted the operation of A, B, C, N inlet wire current, there are two types of the shorting stubs that use,
One is silver insert rows arranged side by side, and applicability is not extensive, and the secondary circuit for accessing terminal block side by side non-to A, B, C, N is uncomfortable
With；One is the four-head shorting stub with expansion plug, plug after prolonged use, be easy to cause the deformation of terminal block socket with
As for poor contact when being shorted, subsequent short have open circuit risk when opening current terminal connection sheet.
Utility model content
The utility model embodiment technical problems to be solved are, provide a kind of four end electric current secondary loop shorting stubs,
It can reliably be inserted into terminal socket mouth, reliably be shorted internal wiring, ensure that external current loop is unimpeded and easy to operate.
In order to solve the above technical problems, the utility model, which uses following technology, states scheme, a kind of four end electric currents are provided
Secondary circuit shorting stub, comprising:
Four short circuit sockets by wrapped with insulation, each short circuit socket are provided with tapped through-hole,
Institute's internal screw thread uses metal material, and is connected inside the short circuit socket with a copper wire；
A plurality of copper wire, outside are enclosed with insulating materials, each copper wire both ends respectively with two adjacent short circuit sockets
Internal copper wire is connected；
Four plug pins have external screw thread with metallic rod in the metallic rod, for the interior spiral shell with the short circuit socket
Line matching is merged into capable electrical connection.
Wherein, the metallic rod of the plug pin one is epiconus, and other end is provided with anti-skidding lobe section, described anti-skidding prominent
Insulation packet header is coated with outside tooth section.
Wherein, the insulation packet header is stepped cylindrical body, the periphery is provided with skid resistance strip, described
Circular arc protrusion is provided at the top of cylindrical body.
Wherein, the side of the epiconus is provided with the first external thread section in the metallic rod, close to packet header
Side is provided with the second external thread section, and the perimeter of first external thread section is less than the perimeter of second external thread section.
Wherein, the insulating materials for being shorted socket and the copper wire is using same material, and is integrally formed.
Implement the utility model, have it is following the utility model has the advantages that
Four end provided by the utility model shorting stub can easily screw in the electricity of a certain phase inlet wire and outlet by plug pin
Terminal block is flowed, to realize the reliable short circuit of inner current loops, can ensure the unimpeded of external current loop.It has operation letter
Just, easy to carry, the advantages of working efficiency can be improved.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings the scope for still falling within the utility model.
Fig. 1 is the structural schematic diagram after a kind of assembling of four ends electric current secondary loop shorting stub provided by the utility model；
Fig. 2 is the structural schematic diagram for being shorted socket in Fig. 1 and connecting with copper wire；
Fig. 3 is the partial structural diagram of plug pin in Fig. 1；
Fig. 4 is the structural schematic diagram of plug pin in Fig. 1；
Fig. 5 is the schematic diagram at another visual angle of Fig. 4.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.It should be appreciated that below
Illustrative examples and explanation are only used to explain the utility model, be not intended to limit the scope of the present invention, moreover, not rushing
In the case where prominent, the feature in the embodiments of the present invention and embodiment can be combined with each other.
As shown in Figure 1, after showing a kind of assembling of four ends electric current secondary loop shorting stub provided by the utility model
Structural schematic diagram；And it is please combined shown in Fig. 2 to Fig. 5 together.Four ends electric current secondary loop shorting stub provided by the utility model,
Include:
Four short circuit sockets 1 by wrapped with insulation, each short circuit socket 1 are provided with tapped through-hole
10, institute's internal screw thread uses metal material, and is connected in 1 inside of short circuit socket with a copper wire；
Be 3 in a plurality of copper wire 2(figure), outside is enclosed with insulating materials, each copper wire both ends both ends respectively with phase
Adjacent two copper wire being shorted inside socket 1 are connected；It is understood that in one embodiment, the short circuit socket 1 and institute
The insulating materials of copper wire 2 is stated using same material, and is integrally formed.
Four plug pins 3 have external screw thread with metallic rod 30 in the metallic rod, for being shorted socket 1 with described
Internal screw thread matching is merged into capable electrical connection.Specifically, the metallic rod of the plug pin 3 30 1 are epiconus 31, other end setting
Have is two in anti-skidding lobe section 32(figure), insulation packet header 35 is coated with outside the anti-skidding lobe section 32.
Wherein, the insulation packet header 35 is stepped cylindrical body, the periphery is provided with skid resistance strip, in institute
It states and is provided with circular arc protrusion 36 at the top of cylindrical body.
Wherein, the side of the epiconus 31 is provided with the first external thread section 33 in the metallic rod 30, close
The side in packet header 35 is provided with the second external thread section 34, wherein the second external thread section 34 matches with the internal screw thread for being shorted socket 1
It closes, first external thread section 33 is matched with the current terminal round in secondary loop of mutual inductor；Wherein, described first
The perimeter of external thread section 33 is less than the perimeter of second external thread section 34, easily passes through in this way convenient for the metallic rod 30
It is shorted the through-hole 10 of socket 1.
In practical application, the plug pin with packet header in Fig. 4 is inserted into the shorted on both ends socket in Fig. 2, it is combined into four ends
Shorting stub screws in the current terminal row of a certain phase inlet wire and outlet, may be implemented to ensure the reliable short circuit of inner current loops
External current loop it is unimpeded.
Implement the utility model, have it is following the utility model has the advantages that
Four end provided by the utility model shorting stub can easily screw in the electricity of a certain phase inlet wire and outlet by plug pin
Terminal block is flowed, to realize the reliable short circuit of inner current loops, can ensure the unimpeded of external current loop.It has operation letter
Just, easy to carry, the advantages of working efficiency can be improved.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and their equivalents.
Claims (5)
1. a kind of four end electric current secondary loop shorting stubs characterized by comprising
Four short circuit sockets by wrapped with insulation, each short circuit socket are provided with tapped through-hole, in
Screw thread uses metal material, and is connected inside the short circuit socket with a copper wire；
A plurality of copper wire, outside are enclosed with insulating materials, and each copper wire both ends are respectively and inside two adjacent short circuit sockets
Copper wire be connected；
Four plug pins have external screw thread with metallic rod in the metallic rod, for the internal screw thread phase with the short circuit socket
With being merged into capable electrical connection.
2. four end electric current secondary loop shorting stubs of one kind as described in claim 1, which is characterized in that the metallic rod of the plug pin
One is epiconus, and other end is provided with anti-skidding lobe section, and insulation packet header is coated with outside the anti-skidding lobe section.
3. four end electric current secondary loop shorting stubs of one kind as claimed in claim 2, which is characterized in that the insulation packet header is platform
Scalariform cylindrical body is provided with skid resistance strip in the periphery, circular arc protrusion is provided at the top of the cylindrical body.
4. four end electric current secondary loop shorting stubs of one kind as claimed in claim 3, which is characterized in that close in the metallic rod
The side of the epiconus is provided with the first external thread section, and the side close to packet header is provided with the second external thread section, and described the
The perimeter of one external thread section is less than the perimeter of second external thread section.
5. four end electric current secondary loop shorting stubs of one kind as claimed in claim 4, which is characterized in that the short circuit socket and institute
The insulating materials of copper wire is stated using same material, and is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721366529.0U CN208570997U (en) | 2017-10-23 | 2017-10-23 | A kind of four end electric current secondary loop shorting stubs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721366529.0U CN208570997U (en) | 2017-10-23 | 2017-10-23 | A kind of four end electric current secondary loop shorting stubs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208570997U true CN208570997U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721366529.0U Active CN208570997U (en) | 2017-10-23 | 2017-10-23 | A kind of four end electric current secondary loop shorting stubs |
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| CN (1) | CN208570997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051516A (en) * | 2020-08-03 | 2020-12-08 | 广东电网有限责任公司 | Current transformer secondary circuit short circuit instrument |
-
2017
- 2017-10-23 CN CN201721366529.0U patent/CN208570997U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051516A (en) * | 2020-08-03 | 2020-12-08 | 广东电网有限责任公司 | Current transformer secondary circuit short circuit instrument |
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