CN220419370U - Secondary terminal short-circuit device of current transformer - Google Patents
Secondary terminal short-circuit device of current transformer Download PDFInfo
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- CN220419370U CN220419370U CN202320681720.3U CN202320681720U CN220419370U CN 220419370 U CN220419370 U CN 220419370U CN 202320681720 U CN202320681720 U CN 202320681720U CN 220419370 U CN220419370 U CN 220419370U
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- current transformer
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- 125000003003 spiro group Chemical group 0.000 claims abstract description 10
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000270722 Crocodylidae Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The application discloses current transformer secondary terminal shorting device, its secondary terminal is installed through the spiro union spare, shorting device includes a plurality of first clamping pieces, it has first clamping part and the second clamping part that rotate the connection, all set up first clamping end on first clamping part and the second clamping part, first opening and second opening set up respectively on two first clamping ends, and first opening and second open-ended opening set up relatively, and can adapt the spiro union spare shape, can firmly reliable press from both sides the spiro union spare, thereby the short circuit operation of secondary terminal is accomplished through the connecting wire activity run through a plurality of first clamping pieces in proper order, and accomplish the earthing operation through connecting wire one end earth, first opening and the firm difficult emergence of second open-ended design is not hard up or pop out the phenomenon of wiring, the condition that the wiring is not firm to cause experimental reworking has been avoided, can guarantee test process data accuracy and test personnel and equipment safety.
Description
Technical Field
The disclosure relates to the technical field of current transformer high-voltage tests, in particular to a secondary terminal short-circuiting device of a current transformer.
Background
The current transformer is a device for converting large current into small current in a power system, and the secondary winding signal is mainly used for protecting, measuring, metering and other functions. At present, the current transformers in the transformer substation are increasingly applied in number, and in the actual work of an electric test, short-circuit and grounding operation are often required on the secondary side of the current transformer, but the secondary terminal of the current transformer is very inconvenient due to small wiring screws, the secondary terminal of the traditional transformer is often connected in a mode of winding bare copper wires or crocodile clips, and the two modes have larger potential safety hazards and are inconvenient to use.
The prior patent with the publication number of CN215986451U discloses a shorting wire for a high-voltage test of a current transformer, which comprises a first shorting section and a second shorting section, wherein the first shorting section comprises a first shorting wire and a first wire clamp; the second short-circuit section comprises a second short-circuit wire, a third short-circuit wire, a fourth short-circuit wire, a second wire clamp, a third wire clamp and a fourth wire clamp, and the lengths of the second wire clamp, the third wire clamp and the fourth wire clamp are different; the first shorting stub and the second shorting stub are connected through an adapter;
above-mentioned patent is to the secondary terminal of different specifications, through using suitable fastener, can shorten the time of short circuit secondary terminal, guarantee the short circuit ground connection of secondary terminal again reliably, but because mutual-inductor secondary terminal is too little its fastener can't realize pressing from both sides steadily, easily take place the chuck in the test in-process and pop out, lead to personnel's injury very easily, if the ground connection pops out in high-voltage test simultaneously, can lead to the secondary to open circuit, the serious consequence of equipment damage, in view of this, we propose current transformer secondary terminal shorting device.
Disclosure of Invention
In view of the above-described drawbacks or shortcomings of the prior art, it is desirable to provide a current transformer secondary terminal shorting device.
In a first aspect, the present application provides a current transformer secondary terminal shorting device, the secondary terminal is installed through a spiro union piece, includes:
the first clamping pieces comprise a first clamping part and a second clamping part, the first clamping part and the second clamping part are rotationally connected, the first clamping part and the second clamping part are respectively provided with a first clamping end, the two first clamping ends are mutually close to each other, the two first clamping ends are respectively provided with a first opening and a second opening with opposite openings, and the first opening and the second opening are matched to be used for clamping the screw-on piece;
the connecting wire sequentially penetrates through the first clamping pieces in a movable mode, and one end of the connecting wire is grounded.
According to the technical scheme that this application embodiment provided, first clamping part with the second clamping part all is provided with the rotation end, two all seted up the commentaries on classics hole on classics on the rotation end, be provided with the pivot in the commentaries on classics hole.
According to the technical scheme that this application embodiment provided, the one end that its first clamping end was kept away from to first clamping part is provided with insulating handle, the one end that first clamping end was kept away from to the second clamping part is provided with movable handle, movable handle includes the shell, the shell outer wall runs through along its axis direction of perpendicular to and has seted up the perforation, the perforation is used for supplying the connecting wire passes.
According to the technical scheme provided by the embodiment of the application, the shell is far away from the side wall of the second clamping part and is provided with the groove, the groove can be communicated with the through hole, and the circumferential inner wall of the groove is provided with the first thread.
According to the technical scheme that this application embodiment provided, movable handle still includes the rotary rod, the rotary rod with recess looks adaptation, just rotary rod circumference outer wall is provided with the second screw thread, first screw thread with second screw thread looks spiro union.
According to the technical scheme that this application embodiment provided, the rotary rod is kept away from the one end of second clamping part is provided with twists reverse portion, be provided with insulating protection piece on the twists reverse portion.
According to the technical scheme that this application embodiment provided, connecting wire one end is provided with the second clamping piece, the second clamping piece includes third clamping part and fourth clamping part, third clamping part with fourth clamping part rotates to be connected, just third clamping part with fourth clamping part all has the second and presss from both sides tight end, two the second presss from both sides tight end and cooperatees and be used for the ground connection.
According to the technical scheme that this application embodiment provided, the one end that its second clamped end was kept away from to third clamping part with the connecting wire is connected, the one end that its second clamped end was kept away from to fourth clamping part is provided with insulating handle.
To sum up, this technical scheme specifically discloses current transformer secondary terminal shorting device, including a plurality of first clamping pieces, first clamping piece includes first clamping part and second clamping part, first clamping part and second clamping part rotate to be connected, and all have first clamping end, set up first opening and second opening respectively on two first clamping ends, and its opening is relative, first opening and second opening adaptation are in the spiro union piece shape, can stabilize reliable centre gripping the spiro union piece, the connecting wire can run through a plurality of first clamping pieces in proper order, and its one end ground connection, through first opening and the open-ended setting of second, can adapt the shape of spiro union piece, thereby can reliably, stable completion secondary terminal shorting, the earthing operation, firm difficult emergence of wiring is not hard up or pop out the phenomenon, the condition that the wiring is not firm causes experimental reworking has been avoided, can guarantee experimental process data accuracy and test personnel and equipment safety.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1 is a schematic diagram of a current transformer secondary terminal shorting device.
Fig. 2 is a schematic structural view of the first clamping member.
Fig. 3 is a schematic structural view of the first clamping member in a clamped state.
Fig. 4 is a schematic view of the structure of the movable handle.
Reference numerals in the drawings: 1. a first clamping member; 2. a first clamping part; 3. a second clamping portion; 4. a connecting wire; 5. an insulating handle; 6. a housing; 7. a rotating rod; 8. a torsion part; 9. and a second clamping member.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
Referring to the schematic structural diagram of the secondary terminal shorting device of the current transformer shown in fig. 1, the shorting device includes a plurality of first clamping members 1, the first clamping members 1 include a first clamping portion 2 and a second clamping portion 3 that are rotatably connected with each other, the first clamping portion 2 and the second clamping portion 3 each have a first clamping end, an elastic member is disposed in the first clamping member 1, the arrangement of the elastic member can ensure that two first clamping ends are close to each other, a first opening and a second opening are respectively disposed on the two first clamping ends, the openings of the first opening and the second opening are disposed opposite to each other, and the first opening and the second opening can be arc-shaped openings, which are matched to be circular openings;
the types of elastic members are, for example: and a torsion spring.
As shown in fig. 2 and 4, the first clamping part 2 and the second clamping part 3 are provided with rotating ends, rotating holes are formed in the rotating ends, and the rotating shaft is arranged in the rotating holes, so that the first clamping part 2 and the second clamping part 3 are rotationally connected through the rotating shaft, the first clamping ends of the first clamping part 2 and the second clamping part 3 are close to each other due to the elastic force of the elastic piece, and the first opening and the second opening are matched to form a circular opening.
The insulating handle 5 is arranged at one end of the first clamping part 2 far away from the first clamping end, and the movable handle is arranged at one end of the second clamping part 3 far away from the first clamping end, so that the two first clamping ends can be mutually close to and far away from each other by holding the insulating handle 5 and applying force to the movable handle.
The movable handle comprises a shell 6, the shell 6 is fixedly arranged on the second clamping part 3, the shell 6 can be cylindrical, the through holes are formed in the shell 6 in a penetrating manner along the direction perpendicular to the axis of the shell 6, the grooves are formed in the side wall, far away from the second clamping part 3, of the shell 6, and the grooves are communicated with the through holes;
the movable handle further comprises a rotary rod 7 which is matched with the groove, a first thread is circumferentially arranged on the inner wall of the groove, a second thread is circumferentially arranged on the outer wall of the rotary rod 7, and the first thread and the second thread are in threaded connection, so that the rotary rod 7 can be in threaded connection in the groove;
the torsion part 8 is fixedly arranged at one end of the rotary rod 7 far away from the second clamping part 3, and the torsion part 8 and the shell 6 are both wrapped and provided with insulating protection pieces.
As shown in fig. 1, a plurality of first clamping pieces 1 are sequentially connected through a connecting wire 4, the connecting wire 4 is made of conductive materials, the connecting wire can be a copper stranded wire, one end of the connecting wire is provided with a second clamping piece 9, the second clamping piece 9 comprises a second clamping part and a fourth clamping part, the third clamping part and the fourth clamping part are rotationally connected through a rotating shaft, the third clamping part and the fourth clamping part are respectively provided with a second clamping end, one end, far away from the second clamping end, of the third clamping part is fixedly connected with the connecting wire, the connecting part comprises an insulating protection piece, one end, far away from the second clamping end, of the fourth clamping part is provided with an insulating handle, and the second clamping piece 9 is provided with an elastic piece, so that the two second clamping ends can be mutually close.
Working principle: the secondary terminal of the current transformer is installed through the screw connector, the screw connector can be a screw, when in short circuit operation, the insulating handle 5 and the movable handle are pressed by holding the first clamping piece 1, so that the two first clamping ends are separated, the first opening and the second opening are aligned with the screw connector and clamped (as shown in figure 3), the first opening and the second opening are designed to correspond to the shape of the screw connector, the first clamping piece 1 can clamp the screw connector better, loosening is avoided, then the rotary rod 7 is manually twisted, the bottom end of the rotary rod 7 is positioned above a through hole, the connecting wire 4 passes through the through hole, and then the rotary rod 7 is reversely twisted, so that the rotary rod 7 can compress the connecting wire 4, and the installation of the connecting wire 4 and the first clamping piece 1 is completed, so that the short circuit operation is completed; the second clamping ends clamp the external grounding wire by holding the second clamping piece 9, so that the grounding operation of the secondary terminal is completed.
Through movable handle, a plurality of first holders 1 can freely move about on connecting wire 4, connecting wire 4 has certain intensity, toughness, can freely buckle, be applicable to the current transformer secondary terminal of various order, position, interval, according to the current transformer secondary terminal number of different voltage grades, can increase and decrease the quantity of first holders 1 in a flexible way, and can lock first holders 1 on connecting wire 4 according to actual wiring position, with the reliable contact between guaranteeing first holders 1 and connecting wire 4, with accomplish reliable short circuit or short circuit earthing operation, connect and dismantle simply, it is quick and laborsaving, avoided the wiring not firm circumstances that cause experimental reworking, can guarantee test process data accuracy and test personnel and equipment safety.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the utility model. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (5)
1. The utility model provides a current transformer secondary terminal shorting device, secondary terminal installs through the spiro union piece, its characterized in that, shorting device includes:
the clamping device comprises a plurality of first clamping pieces (1), wherein each first clamping piece (1) comprises a first clamping part (2) and a second clamping part (3), the first clamping parts (2) and the second clamping parts (3) are rotationally connected, each first clamping part (2) and each second clamping part (3) are provided with a first clamping end, the two first clamping ends are arranged close to each other, the two first clamping ends are respectively provided with a first opening and a second opening with opposite openings, and the first openings and the second openings are matched to be used for clamping the screw-on pieces;
the connecting wires (4) sequentially penetrate through the first clamping pieces (1) in an active mode, and one ends of the connecting wires (4) are grounded;
the one end that first tight end was kept away from to second clamping part (3) is provided with movable handle, movable handle includes shell (6), the shell outer wall runs through along its axis direction of perpendicular to and sets up the perforation, the perforation is used for supplying the connecting wire passes, shell (6) are kept away from set up flutedly on the lateral wall of second clamping part (3), just the recess can the perforation is linked together, recess circumference inner wall is provided with first screw thread, movable handle still includes rotary rod (7), rotary rod (7) with recess looks adaptation, just rotary rod (7) circumference outer wall is provided with the second screw thread, first screw thread with second screw thread looks spiro union, rotary rod (7) are kept away from the one end of second clamping part (3) is provided with torsion part (8), be provided with insulating protection piece in torsion part (8).
2. The current transformer secondary terminal shorting device according to claim 1, wherein the first clamping portion (2) and the second clamping portion (3) are provided with rotating ends, two rotating ends are provided with rotating holes, and a rotating shaft is arranged in each rotating hole.
3. The current transformer secondary terminal shorting device according to claim 1, wherein an end of the first clamping portion (2) remote from the first clamping end thereof is provided with an insulating handle (5).
4. The current transformer secondary terminal shorting device according to claim 1, wherein a second clamping member (9) is provided at one end of the connecting wire (4), the second clamping member (9) comprises a third clamping portion and a fourth clamping portion, the third clamping portion and the fourth clamping portion are rotationally connected, and the third clamping portion and the fourth clamping portion each have a second clamping end, and the two second clamping ends are matched for grounding.
5. The current transformer secondary terminal shorting device according to claim 4, wherein an end of the third clamping portion away from the second clamping end thereof is connected to the connecting wire (4), and an end of the fourth clamping portion away from the second clamping end thereof is provided with an insulating handle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320681720.3U CN220419370U (en) | 2023-03-31 | 2023-03-31 | Secondary terminal short-circuit device of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320681720.3U CN220419370U (en) | 2023-03-31 | 2023-03-31 | Secondary terminal short-circuit device of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220419370U true CN220419370U (en) | 2024-01-30 |
Family
ID=89660879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320681720.3U Active CN220419370U (en) | 2023-03-31 | 2023-03-31 | Secondary terminal short-circuit device of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220419370U (en) |
-
2023
- 2023-03-31 CN CN202320681720.3U patent/CN220419370U/en active Active
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