CN102012447B - Telescopic clip-on ammeter - Google Patents
Telescopic clip-on ammeter Download PDFInfo
- Publication number
- CN102012447B CN102012447B CN2010105029898A CN201010502989A CN102012447B CN 102012447 B CN102012447 B CN 102012447B CN 2010105029898 A CN2010105029898 A CN 2010105029898A CN 201010502989 A CN201010502989 A CN 201010502989A CN 102012447 B CN102012447 B CN 102012447B
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- current transformer
- expansion link
- housing
- coil
- jaw
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- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000004080 punching Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 9
- 230000009194 climbing Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 7
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The invention discloses a telescopic clip-on ammeter. The telescopic clip-on ammeter comprises an open-close type jaw, a data display instrument, a telescopic rod and a straight-through current transformer, wherein the current transformer consists of a pair of coils of which main bodies are semicircular; the coils are arranged inside a shell integrally and are concentric with an arc on the shell; one end of each coil is provided with a trapezoidal boss; a pin hole which is hinged with the shell is formed on the trapezoidal boss; the pair of coils is arranged opposite to each other; one end of the boss of each coil is connected by a spring; the jaw is provided with two triangular insulation shells which are arranged opposite to each other and are connected with one end of each coil of the current transformer respectively; the telescopic rod is fixedly connected to the middle part of the lower end of the shell; and the lower end of the telescopic rod is provided with the data display instrument. Compared with the conventional clip-on ammeter, the telescopic clip-on ammeter is not closely contacted with a live part when used, does not need a climbing test, and is not limited by space and is safe and convenient to use.
Description
Technical field
The present invention relates to a kind of current measuring device, especially a kind of telescopic pincers type reometer.
Background technology
In the power marketing working site, need to measure low presenting a theatrical performance as the last item on a programme through the regular meeting existence and distinguish a load current, so that understand the load condition that transformer, branch line are born, so reometer is necessary equipment.Reometer common in the market and easy to use is a clamp on amperemeter; Could reometer be inserted after it need not shut down circuitry cuts and measure; But its structure comprises the jaw of the housing folding of reometer, the current transformer that is arranged at enclosure interior and data presentation appearance; Jaw is positioned at the top of housing, and the operating switch of jaw folding places side, and the data presentation appearance then is fixed on lower part of frame.Survey low presenting a theatrical performance as the last item on a programme at card and distinguish in the process of an electric current,, need the tester to pedal just energy measurement of high hand-held reometer because the branch line position is generally higher; Use inconvenience, need two people to cooperate when card is surveyed, testing efficiency is low; And with the live part close contact, also dangerous.
Summary of the invention
The technical matters that the present invention will solve provides a kind of card that is used for and surveys low presenting a theatrical performance as the last item on a programme when distinguishing electric current, efficient, safe telescopic pincers type reometer during easy to use and test.
For solving the problems of the technologies described above, the technical scheme that the present invention taked is: a kind of telescopic clamp on amperemeter comprises it is characterized in that the current transformer of jaw, data presentation appearance, housing and the punching of opening and closing type: also comprise expansion link;
Said current transformer is that the coil of a pair of main body semicircular in shape constitutes; Its integral body places enclosure interior; And concentric with the circular arc place on the housing, the coil lower end is provided with trapezoid boss, and said trapezoid boss is provided with the pin-and-hole hinged with said housing; A pair of coil is placed relatively, and the boss of two coils is connected through spring;
Said jaw is a pair of insulation shell triangular in shape, is fastened in said current transformer upper end respectively;
Said expansion link is more than two joints; And insulation tube through screwing and fixing between adjacent two joints; The expansion link upper end is fixed in the lower end of housing; Be fixed with the data presentation appearance on the minor details insulation tube of expansion link, said data presentation appearance is through being connected at the inner telescopic spring formula connecting line of expansion link with current transformer.
Adopt the beneficial effect that technique scheme produced to be: the jaw in the structure of the present invention is set to the open-and-close mechanism that two relative triangles are formed, and has avoided need removing to open jaw with hand in the traditional tong-type ammeter, and is more convenient to operate; Middle part, lower end at housing is provided with expansion link; This expansion link is necessary for the insulation tube of at least two joints and forms; And can fix through screwing between adjacent two joints, realize tester's remote-controlled operation testing tool, avoid the close contact current carrying conductor; Safer, and do not receive space constraint; Connect data presentation appearance summation current transformer in expansion link inside through telescopic spring formula connecting line, placed the bottom of expansion link to the data presentation appearance, made things convenient for reading and record of data.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a structure left view of the present invention;
Fig. 3 is the cut-open view of structured testing part of the present invention;
Wherein, 1, jaw, 2, housing, 3, expansion link, 4, the data presentation appearance, 5, current transformer, 6, current carrying conductor, 7, pin-and-hole, 8, spring.
Embodiment
Referring to Fig. 1, Fig. 2, structure of the present invention comprises the current transformer 5 of jaw 1, data presentation appearance 4, housing 2 and the punching of opening and closing type, it is characterized in that: also comprise expansion link 3;
The coil that said current transformer 5 is a pair of main body semicircular in shape constitutes; Its integral body places housing 2 inside; And concentric with the circular arc place on the housing 2, the coil lower end is provided with trapezoid boss, and said trapezoid boss is provided with the pin-and-hole 7 hinged with said housing 2; A pair of coil is placed relatively, and the boss of two coils is connected through spring 8;
Said jaw 1 is a pair of insulation shell triangular in shape, is fastened in said current transformer 5 upper ends respectively;
Said expansion link 3 is more than two joints; And insulation tube through screwing and fixing between adjacent two joints; Expansion link 3 upper ends are fixed in the lower end of housing 2; Be fixed with data presentation appearance 4 on the minor details insulation tube of expansion link 3, said data presentation appearance 4 is through being connected at expansion link 3 inner telescopic spring formula connecting lines with current transformer 5.
Fig. 3 is the cut-open view to structured testing part of the present invention, as can be seen from the figure, and when the electric current of the district's current carrying conductor 6 of presenting a theatrical performance as the last item on a programme is hanged down in the needs test; Only need expansion link 3 to draw back, aim at current carrying conductor 6 to jaw 1 part, firmly the bottom of roof pressure expansion link 3; Jaw 1 struts current transformer 5 under the effect of triangle guiding, spring 8 is compressed; Current carrying conductor 6 just gets in the circle of reometer smoothly; Current transformer 5 closures under the effect of spring 8, just read the numerical value of electric current on the current carrying conductor this moment on data presentation appearance 4, and record; Accomplish when test, pull at the bottom of expansion link 3,1 of jaw can strut current transformer 5, makes current carrying conductor 6 break away from reometer, and test is accomplished.
Claims (1)
1. telescopic clamp on amperemeter comprises it is characterized in that the current transformer (5) of jaw (1), data presentation appearance (4), housing (2) and the punching of opening and closing type: also comprise expansion link (3);
Said current transformer (5) is that the coil of a pair of main body semicircular in shape constitutes; Its integral body places housing (2) inside; And concentric with the circular arc place on the housing (2), the coil lower end is provided with trapezoid boss, and said trapezoid boss is provided with the pin-and-hole (7) hinged with said housing (2); A pair of coil is placed relatively, and the boss of two coils is connected through spring (8);
Said jaw (1) is a pair of insulation shell triangular in shape, is fastened in said current transformer (5) upper end respectively;
Said expansion link (3) is more than two joints; And insulation tube through screwing and fixing between adjacent two joints; Expansion link (3) upper end is fixed in the lower end of housing (2); Be fixed with data presentation appearance (4) on the minor details insulation tube of expansion link (3), said data presentation appearance (4) is through being connected at the inner telescopic spring formula connecting line of expansion link (3) with current transformer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105029898A CN102012447B (en) | 2010-10-12 | 2010-10-12 | Telescopic clip-on ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105029898A CN102012447B (en) | 2010-10-12 | 2010-10-12 | Telescopic clip-on ammeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102012447A CN102012447A (en) | 2011-04-13 |
| CN102012447B true CN102012447B (en) | 2012-04-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105029898A Active CN102012447B (en) | 2010-10-12 | 2010-10-12 | Telescopic clip-on ammeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102012447B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103988086B (en) * | 2011-11-02 | 2018-06-05 | 霍尼韦尔国际公司 | The apparatus and method for sensing electric current |
| CN103809060B (en) * | 2012-11-05 | 2016-06-22 | 无锡赛克特信息科技有限公司 | Platform district low-voltage zero line current leakage detection system and detection of electrical leakage method |
| CN102928755B (en) * | 2012-11-14 | 2015-08-26 | 天津智联恒信电力设备股份有限公司 | A kind of hand-held insulativity detection device for line pole |
| CN103048518B (en) * | 2012-12-11 | 2015-12-02 | 上海市电力公司 | A kind of small current pincers of live line measurement field-checking |
| CN104133104B (en) * | 2014-08-13 | 2017-04-19 | 国家电网公司 | Novel telescopic type low-voltage tong-type ammeter |
| CN104931764A (en) * | 2015-06-24 | 2015-09-23 | 中山市木易万用仪器仪表有限公司 | Telescopic pincerlike ampere meter |
| CN105467191A (en) * | 2015-11-18 | 2016-04-06 | 重庆新世杰电气股份有限公司 | Clip-on ammeter |
| CN105425190A (en) * | 2015-12-10 | 2016-03-23 | 国网四川省电力公司电力科学研究院 | Strut-type current transformer field test primary wiring apparatus |
| CN106353635A (en) * | 2016-10-27 | 2017-01-25 | 宁波天派智能科技有限公司 | Detection device for leakage current |
| CN106569006B (en) * | 2016-11-09 | 2019-04-02 | 国网山东省电力公司临朐县供电公司 | A kind of Telescopic clip-on ammeter for overhead transmission line measurement |
| CN110488069A (en) * | 2019-08-09 | 2019-11-22 | 国网浙江省电力有限公司温州市洞头区供电公司 | Insulating stretchable type clamp ammeter |
| CN112540215A (en) * | 2020-11-26 | 2021-03-23 | 广东电网有限责任公司 | Electricity stealing evidence obtaining device and electricity stealing evidence obtaining method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2109573U (en) * | 1991-12-28 | 1992-07-08 | 杭州东海仪表厂 | Wide measuring range small current pincerlike meter |
| US7439726B2 (en) * | 2006-04-27 | 2008-10-21 | Fluke Corporation | Electrical measuring instrument having detachable current clamp probe |
| JP2008215900A (en) * | 2007-03-01 | 2008-09-18 | Hitachi Mobile Co Ltd | Noncontact current meter and measurement auxiliary tool of the same |
| CN201096876Y (en) * | 2007-07-31 | 2008-08-06 | 保定科远电力设备有限公司 | Online tester for current mutual inductor |
| CN201804026U (en) * | 2010-10-12 | 2011-04-20 | 邢台供电公司 | Retractable pincer-like galvanometer |
-
2010
- 2010-10-12 CN CN2010105029898A patent/CN102012447B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102012447A (en) | 2011-04-13 |
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Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: XINGTAI POWER SUPPLY COMPANY Effective date: 20120907 Owner name: HEBEI ELECTRIC POWER CORPORATION XINGTAI POWER SUP Effective date: 20120907 |
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Free format text: CORRECT: ADDRESS; FROM: 054001 XINGTAI, HEBEI PROVINCE TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120907 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Hebei Electric Power Corporation Patentee after: Xingtai Power Supply Co. Address before: 054001 No. 318 East Main Street, Hebei, Xingtai Patentee before: Xingtai Power Supply Co. |