CN110672953B - Secondary voltage extraction device - Google Patents
Secondary voltage extraction device Download PDFInfo
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- CN110672953B CN110672953B CN201910964406.4A CN201910964406A CN110672953B CN 110672953 B CN110672953 B CN 110672953B CN 201910964406 A CN201910964406 A CN 201910964406A CN 110672953 B CN110672953 B CN 110672953B
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- extraction device
- voltage extraction
- voltage
- clamping jaw
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- 238000000605 extraction Methods 0.000 title claims abstract description 28
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 240000005561 Musa balbisiana Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- 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
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a secondary voltage extraction device, which is used for acquiring the voltage of a secondary terminal and comprises: the clamping device comprises a supporting plate provided with an inserting hole, at least four clamping jaws connected with the supporting plate and used for being matched with the periphery of a secondary terminal, a handheld part used for controlling the clamping jaws to clamp or loosen and a joint component matched with the inserting hole. The secondary voltage extraction device effectively solves the problem that a voltage signal is difficult to obtain by a voltage transformer secondary terminal row in the live-line test work of the transformer substation lightning arrester, and solves the problems that a clamp used in the traditional secondary voltage extraction work cannot extract voltage accurately and quickly, the efficiency is low, and the clamp is easy to drop or is fixed unreliable due to short circuit, so that potential safety hazards exist.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a secondary voltage extraction device.
Background
When the transformer substation lightning arrester is tested in a live state, in order to calculate the resistive component of leakage current, voltage must be extracted from a bus PT secondary terminal row to be compared with the phase angle of the leakage current of the lightning arrester, so that a special lightning arrester live tester must be used for connecting special A630 and N600 terminals on the PT secondary terminal row to obtain secondary voltage with the voltage of 60V. The most supporting less sharp mouth fastener of some of present electrified tester of arrester, because each transformer substation construction age is different, secondary terminal row size is different, and some terminal row hole footpaths are less, hardly touch the electrically conductive screw in the terminal hole after the fastener is fixed, press from both sides the process and consume power consuming time, need the handheld fastener of stabilizing of special messenger sometimes, can't the accurate swift secondary voltage extraction that carries on, seriously reduce work efficiency. In addition, after the clamping terminal is successfully conducted, the problem that the clamping terminal cannot be reliably fixed is also faced, signals are lost due to the fact that the clamping terminal is easy to drop, and secondary voltage acquisition fails; in a more serious situation, the short circuit of different terminals can be caused, so that the secondary air switch is tripped, the voltage signal of the bus cannot be acquired by the dispatching monitoring system, and potential safety hazards exist.
Disclosure of Invention
Based on the above, the invention provides a secondary voltage extraction device, which overcomes the defects that the prior art cannot accurately and quickly extract secondary voltage, has low working efficiency, cannot be reliably fixed, has high failure rate of secondary voltage acquisition and has potential safety hazard.
The technical scheme is as follows:
a secondary voltage extraction device for obtaining a voltage at a secondary terminal, comprising: the clamping device comprises a supporting plate provided with an inserting hole, at least four clamping jaws connected with the supporting plate and used for being matched with the periphery of a secondary terminal, a handheld part used for controlling the clamping jaws to clamp or loosen and a joint component matched with the inserting hole.
The secondary voltage extraction device of the technical scheme effectively solves the problem that a voltage signal is difficult to obtain by a voltage transformer secondary terminal row during live-line test of a transformer substation lightning arrester, the problem that a clamp used in the traditional secondary voltage extraction work cannot accurately and quickly extract voltage, the efficiency is low, and the clamp is easy to drop or is short-circuited to cause unreliability in fixation is solved, so that the secondary voltage acquisition failure rate is high, and potential safety hazards exist. Specifically, this technical scheme is tight in the periphery that corresponds the secondary terminal through four clamping jaw clamps of handheld portion control at least when using, and four at least clamping jaws distribute in the double-phase offside that corresponds the secondary terminal at least, perhaps, four at least clamping jaws distribute in the double-phase opposite vertex angle of corresponding secondary terminal at least, tightly enclose and embrace the secondary terminal, difficult pine takes off, fixed reliability is strong, and the clamping jaw is fixed in the periphery of secondary terminal and prevents that the mistake from bumping other electrified circuits, its good fixity can prevent the equipment maloperation that different secondary terminal short circuits caused, there are better practical value and application prospect, improve equipment test efficiency and fortune dimension level, secondary air switch-on tripping operation that reduction equipment touched the result because of the people mistake stops transporting, improve power supply reliability, have higher direct and indirect economic benefits. The plug-in hole in the backup pad aligns the current conducting plate in the corresponding secondary terminal hole, inserts in the plug-in hole through the joint Assembly for the contact of joint Assembly and current conducting plate and locking, the current conducting plate passes through the joint Assembly and is connected with external equipment, accomplishes the extraction of the secondary voltage of corresponding secondary terminal. The technical scheme can also be applied to other occasions needing fixing and can be popularized to more industries.
In one implementation, the supporting plate is a rectangular plate, the number of the clamping jaws is four, and four clamping jaws are arranged at four corners of the rectangular plate.
In one embodiment, the handle is removably connected to the jaw.
In one embodiment, the holding part is a reversed V-shaped holding part, and the clamping jaw is provided with a connecting part for penetrating the holding part.
In one embodiment, the handle is a resilient member.
In one embodiment, the jaws are resilient members.
In one embodiment, the clamping jaw is rotatably connected with the supporting plate.
In one embodiment, the connector assembly comprises a first connector which is matched with the plug hole in a plugging mode and provided with a first plug interface, and a second connector which is matched with the first plug interface and provided with an outgoing line.
In one embodiment, the supporting plate, the clamping jaw and the handheld part are all provided with insulating layers.
In one embodiment, the number of the insertion holes is at least two.
Drawings
Fig. 1 is a schematic structural diagram of a secondary voltage extraction device according to an embodiment of the present invention.
Description of reference numerals:
10. a support plate; 11. inserting holes; 20. a clamping jaw; 21. a connecting portion; 30. a hand-held portion; 40. a joint assembly; 41. a first joint; 411. a first interface; 42. a second joint; 421. a second interface; 422. and (6) leading out wires.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
Example 1
A secondary voltage extraction apparatus, as shown in fig. 1, for obtaining a voltage of a secondary terminal, comprising: the terminal comprises a supporting plate 10 provided with a plug hole 11, at least four clamping jaws 20 connected with the supporting plate 10 and used for being matched with the periphery of a secondary terminal, a handheld part 30 used for controlling the clamping or loosening of the clamping jaws 20, and a joint component 40 matched with the plug hole 11.
The secondary voltage extraction device of this embodiment has effectively solved the voltage transformer secondary terminal row of the electrified test work of transformer substation arrester and has got the voltage signal difficult problem, solves the unable accurate swift voltage extraction that carries out of clip that traditional secondary voltage extraction work used, and is inefficient, thereby the clip easily drops or the short circuit leads to fixed unreliable secondary voltage to acquire the problem that the failure rate is high and there is the potential safety hazard. Specifically, this technical scheme is tight in the periphery that corresponds the secondary terminal through handheld portion 30 control four at least clamping jaws 20 clamp when using, and four at least clamping jaws 20 distribute in the double-phase offside that corresponds the secondary terminal at least, perhaps, four at least clamping jaws 20 distribute in the double-phase opposite vertex angle of corresponding secondary terminal at least, tightly enclose and embrace the secondary terminal, difficult pine takes off, fixed reliability is strong, secondary voltage obtains the failure rate low, and clamping jaw 20 is fixed in the periphery of secondary terminal and prevents that the mistake from bumping other live-line, its good fixity can prevent the equipment maloperation that different secondary terminal short circuits caused, there are better practical value and application prospect, improve equipment test efficiency and fortune dimension level, reduce equipment and touch the secondary air switch tripping operation that leads to because of the people mistake and shut down, improve the power supply reliability, have higher directness and brief introduction economic benefits. The jack hole 11 on the supporting plate 10 aligns to the conductive plate in the corresponding secondary terminal hole, and the connector assembly 40 is inserted into the jack hole 11, so that the connector assembly 40 touches and locks the conductive plate, and the conductive plate is connected with external equipment through the connector assembly 40, thereby completing the extraction of the secondary voltage of the corresponding secondary terminal. The method can be applied to other occasions needing fixing and can be popularized to more industries.
Specifically, in the present embodiment, the supporting plate 10 is a rectangular plate, the number of the clamping jaws 20 is four, and four clamping jaws 20 are disposed at four corners of the rectangular plate. Thereby when using the secondary voltage draw-out device of this embodiment, clamping jaw 20 can firmly hold tightly four angles of corresponding secondary terminal, encloses it through four clamping jaws 20 and embraces it, can not make clamping jaw 20 pine take off because of equipment vibration or removal, guarantees secondary voltage draw-out device's reliable fixed, acquires secondary voltage smoothly. In other embodiments, more than four clamping jaws 20 may be used to hold the secondary terminal.
In this embodiment, the clamping jaw 20 is an L-shaped clamping jaw or a J-shaped hook clamping jaw, which facilitates grasping of the secondary terminal.
In the embodiment, the handheld portion 30 is detachably connected with the clamping jaw 20, so that when one of the handheld portion 30 and the clamping jaw 20 is damaged, the handheld portion and the clamping jaw can be detached and replaced, maintenance is facilitated, maintenance cost is reduced, and product utilization rate is improved.
Specifically, the holding portion 30 is a "u" shaped holding portion 30, and the clamping jaw 20 is provided with a connecting portion 21 for passing through the holding portion 30. Connecting portion 21 is for locating arch board on the clamping jaw 20, the arch board is located clamping jaw 20 is kept away from backup pad 10 one side wears to establish handheld portion 30 through the through-hole that forms between arch board and the clamping jaw 20, just connecting portion 21 with clamping jaw 20 integrated into one piece improves joint strength. Because the number of the clamping jaws 20 is four in the present embodiment, the number of the holding portions 30 is two, the two holding jaws 20 on the two opposite sides are respectively controlled, and two ends of the same holding portion 30 respectively penetrate through the connecting portions 21 of the two adjacent clamping jaws 20 on the same side, so as to synchronously control the opening and closing of the two clamping jaws 20 on the same side. In other embodiments, the connecting portion 21 may also be a frame-shaped plate disposed on the clamping jaw 20, and the holding portion 30 is inserted through a through hole formed between the frame-shaped plate and the clamping jaw 20; or the connecting part 21 may be a clamping groove formed in the clamping jaw 20, and the handheld part 30 is clamped through the clamping groove.
In order to facilitate the detachment and installation of the handheld portion 30, the handheld portion 30 in this embodiment is an elastic member, so that the two ends of the handheld portion 30 can be conveniently inserted into or taken out of the connecting portion 21. The elastic part can be a stainless steel part or a plastic part.
The clamping jaw 20 is fixedly connected to the supporting plate 10, and the clamping jaw 20 is an elastic member, which may be a stainless steel member or a plastic member, since the clamping jaw 20 needs to perform a clamping or loosening action.
The connector assembly 40 of the present embodiment includes a first connector 41 which is mated with the insertion hole 11 and is provided with a first insertion port 411, and a second connector 42 which is mated with the first insertion port 411 and is provided with an outgoing line 422. When the secondary voltage extracting apparatus according to the present embodiment is used, the insertion hole 11 is aligned with the conductive plate of the corresponding secondary terminal so that the first connector 41 can be brought into contact with the conductive plate after being inserted into the insertion hole 11, thereby obtaining the secondary voltage and transmitting the secondary voltage to the external device through the lead-out wire 422 of the second connector 42 connected to the first connector 41. In order to enable the first connector 41 to be stably contacted with a conductive plate of a secondary terminal, the inserting hole 11 is provided with an internal thread, the first connector 41 is provided with an external thread matched with the internal thread, and after the first connector 41 is contacted with the conductive plate, the first connector 41 is screwed and fixed in the inserting hole 11, so that effective contact between the first connector 41 and the conductive plate is guaranteed, and secondary voltage is accurately obtained. In another embodiment, the first joint 41 may be an expansion joint, and the contact and separation of the conductive plates may be achieved by controlling the expansion and contraction of the first joint 41.
In addition, the second connector 42 of the present embodiment is provided with the second socket 421, so that it can be connected to other connectors, and the application range is wide. The first joint 41 and the second joint 42 may both be banana plugs.
In order to ensure the personal safety of the operator and reduce the probability of safety accidents, the supporting plate 10, the clamping jaw 20 and the handheld portion 30 are all provided with insulating layers. The insulating layer may be an insulating coating or an insulating sleeve.
Because the secondary terminal usually has a plurality of equipotential holes to be connected with the current conducting plate, so the spliced eye 11 is quantity at least two, every spliced eye 11 cooperates with an equipotential hole respectively to can acquire secondary voltage with joint Assembly 40 and arbitrary spliced eye 11 cooperation, improve the flexibility of operation, avoid position restriction or other reasons to cause the inconvenient and influence the acquirement of secondary voltage of pegging graft. In this embodiment, the number of the plugging holes 11 is three, and the three plugging holes 11 are arranged at intervals.
Example 2
The present embodiment is similar in structure and principle to embodiment 1, except that the clamping jaws 20 of the present embodiment are rotatably connected to the supporting plate 10. That is, the relative rotation between the clamping jaws 20 and the supporting plate 10 can be realized by means of hinges or other rotation connections, so that the clamping or releasing function of the clamping jaws 20 can be realized by the rotation of the clamping jaws 20 driven by the hand holding part 30.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A secondary voltage extraction device for obtaining a voltage at a secondary terminal, comprising: the clamping jaw is an elastic piece, the clamping jaw is adjacent to the same side of the supporting plate, the clamping jaw is a handheld part in a shape like a Chinese character 'ji', and each clamping jaw is provided with a connecting part used for penetrating through the handheld part.
2. The secondary voltage extraction device as claimed in claim 1, wherein the support plate is a rectangular plate, the number of the clamping jaws is four, and four clamping jaws are disposed at four corners of the rectangular plate.
3. The secondary voltage extraction device as recited in claim 1, wherein the handle is removably connected to the jaw.
4. The secondary voltage extraction device as claimed in claim 3, wherein the hand-held portion is rotatably connected to the jaw.
5. The secondary voltage extraction device according to claim 3, wherein the jaws are J-hook jaws that can be used to grip a secondary terminal.
6. The secondary voltage extraction device according to claim 3 wherein the jaws are L-shaped jaws that can be used to grip a secondary terminal.
7. The secondary voltage extraction apparatus according to claim 1 wherein the clamping jaw is rotatably connected to the support plate.
8. The secondary voltage extraction device as claimed in claim 1, wherein the connector assembly comprises a first connector fitted with the insertion hole and provided with a first insertion port, and a second connector fitted with the first insertion port and provided with an outgoing line.
9. The secondary voltage extraction device as claimed in any one of claims 1 to 8 wherein the support plate, clamping jaw and hand grip are provided with an insulating layer.
10. The secondary voltage extraction device of claim 1, wherein the number of the insertion holes is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910964406.4A CN110672953B (en) | 2019-10-11 | 2019-10-11 | Secondary voltage extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910964406.4A CN110672953B (en) | 2019-10-11 | 2019-10-11 | Secondary voltage extraction device |
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| Publication Number | Publication Date |
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| CN110672953A CN110672953A (en) | 2020-01-10 |
| CN110672953B true CN110672953B (en) | 2022-02-01 |
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| CN201910964406.4A Active CN110672953B (en) | 2019-10-11 | 2019-10-11 | Secondary voltage extraction device |
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| CN202487917U (en) * | 2012-03-23 | 2012-10-10 | 河北省电力公司超高压输变电分公司 | Device for positioning and fixing plug wire of secondary terminal of power equipment |
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| CN109613308A (en) * | 2018-11-23 | 2019-04-12 | 安徽银点电子科技有限公司 | Portable clamp is used in a kind of maintenance of electrical contact |
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| KR100265489B1 (en) * | 1996-03-22 | 2000-09-15 | 요코다 마코도 | Socket for electric components |
| JP3419284B2 (en) * | 1997-11-21 | 2003-06-23 | 理化工業株式会社 | Internal structure of instruments |
| CN208833814U (en) * | 2018-07-09 | 2019-05-07 | 广东电网有限责任公司 | A kind of protective device and lightning arrester with electrical testing meter of arrester measuring device |
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|---|---|---|---|---|
| TW200704992A (en) * | 2005-07-29 | 2007-02-01 | Ind Tech Res Inst | Photoelectric transducer |
| CN202487917U (en) * | 2012-03-23 | 2012-10-10 | 河北省电力公司超高压输变电分公司 | Device for positioning and fixing plug wire of secondary terminal of power equipment |
| CN105866476A (en) * | 2016-03-28 | 2016-08-17 | 国家电网公司 | Portable testing terminal |
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| CN110672953A (en) | 2020-01-10 |
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