CN103048518B - A kind of small current pincers of live line measurement field-checking - Google Patents
A kind of small current pincers of live line measurement field-checking Download PDFInfo
- Publication number
- CN103048518B CN103048518B CN201210532858.3A CN201210532858A CN103048518B CN 103048518 B CN103048518 B CN 103048518B CN 201210532858 A CN201210532858 A CN 201210532858A CN 103048518 B CN103048518 B CN 103048518B
- Authority
- CN
- China
- Prior art keywords
- caliper
- magnetic
- arm
- current clamp
- current
- 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.)
- Active
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 48
- 210000000080 chela (arthropods) Anatomy 0.000 title claims abstract description 22
- 230000001737 promoting effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 8
- 230000001788 irregular Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
A kind of small current pincers of live line measurement field-checking, one end of current clamp caliper is arranged in caliper overcoat, the other end of current clamp caliper stretches out caliper overcoat, the current clamp binding clip place that this stretches out is provided with caliper embedding, the middle part of the external part of current clamp caliper has the equidirectional caliper slideway with caliper, the inside of current clamp binding clip is provided with the measurement core assembly that can move left and right along caliper slideway, dynamic magnetic arm and the magnetostatic arm of this assembly close up formation magnetic loop, open i.e. whole magnetic loop and disconnect.The invention solves that the volume of the current clamp under prior art is bigger than normal cannot tackle the little problem in operating space, and the present invention extends to binding clip the working position measuring core assembly by caliper inside, reduce the inner length of magnetic path of caliper, under the prerequisite of ratio ensureing magnetic circuit sectional area and the length of magnetic path, ensure that the measuring accuracy of current clamp, the present invention is applicable to various live line measurement field.
Description
Technical field
The present invention relates to a kind of power measurement operation device, particularly relate to a kind of current clamp being applied to live line measurement field-checking field.
Background technology
In live line measurement field-checking field, widely used a kind of current clamp at present, this current clamp is a current transformer with folding characteristic of the magnetic circuit.In live line measurement scene do not take the prerequisite of current loop apart under, by opening current clamp magnetic circuit, just can tested current line be wrapped in the magnet loop of current clamp, after closed path pincers magnetic circuit, form the current transformer that is detected this current return electric current, coordinate pertinent instruments, detect the electrical quantitys such as electric current, power, electric energy.
But, in actual application, we find, because the actual field situation at live line measurement scene varies, and tested equipment-as the current return of the devices such as electric energy meter current line install radian little, and it is irregular, and current clamp volume under prior art is all bigger than normal, because operating space is little, existing current clamp cannot penetrate current line in operation, make troubles to site operation personnel, easily pull current line during as penetrated by force and the accident causing current return to open a way, jeopardize power grid security, even cause casualties time serious accident.
Therefore now need a kind of novel small current to clamp, the various complex situations at present live line measurement scene can be tackled, effectively to current line, radian can be installed little and irregular tested equipment carries out live line measurement, and need safe and reliable.
Summary of the invention
In order to solve the variety of problems existing for the current clamp under prior art, the invention provides a kind of small current pincers of live line measurement field-checking, by the current clamp structure redesigned, the various complex situations at present live line measurement scene can be adapted to, effectively to current line, radian can be installed little and irregular tested equipment carries out live line measurement, measuring accuracy is accurate and safe and reliable, and concrete scheme of the present invention is as described below:
A kind of small current pincers of live line measurement field-checking, comprise current clamp caliper, it is characterized in that:
One end of described current clamp caliper is arranged in caliper overcoat, and the other end of current clamp caliper stretches out caliper overcoat, and the current clamp binding clip place that this stretches out is provided with caliper embedding;
The middle part of the external part of described current clamp caliper has the equidirectional caliper slideway with caliper;
The inside of described current clamp binding clip is provided with the measurement core assembly that can move left and right along caliper slideway.
The object of design proposal is herein, the small current pincers of live line measurement field-checking of the present invention change the winding space position around the secondary winding on current clamp magnetic core (magnetic circuit) under prior art, the working position measuring core assembly is extended to binding clip by caliper inside, reduce the inner length of magnetic path of caliper, and then reduce the length of magnetic path of whole current clamp, after the length of magnetic path reduces, just can corresponding reduction magnetic circuit sectional area, under the prerequisite of ratio ensureing magnetic circuit sectional area and the length of magnetic path, just ensure that the measuring accuracy of current clamp.
Small current according to a kind of live line measurement field-checking of the present invention clamps, it is characterized in that, described measurement core assembly comprises the measurement magnetic core forming magnetic loop, magnetic core guide rod and push button, wherein, measure magnetic core and be divided into upper and lower two parts, top is the dynamic magnetic arm that can move left and right, bottom is fixed magnetostatic arm, and one end of magnetic core guide rod is arranged on the end of the dynamic magnetic arm on top, the other end of magnetic core guide rod is then arranged in the caliper slideway of size corresponding to it, push button is then arranged on the top of dynamic magnetic arm, dynamic magnetic arm and connected magnetic core guide rod is driven to horizontally slip at caliper slideway by promoting push button, whole magnetic loop is disconnected or closes.
The object of design proposal is herein, because the current clamp under prior art is left-right open-close, when namely opening, magnetic loop disconnects, during merging, magnetic loop is closed forms magnetic circuit, this design result in it, and work space is excessive in use, complicated narrow and small live line measurement environment cannot be tackled, and the small current pincers of live line measurement field-checking of the present invention, have employed front and back driving, as long as the position that the binding clip part of current clamp caliper can arrive just obtains magnetic loop to be opened/closed, carry out live line measurement operation.
Small current according to a kind of live line measurement field-checking of the present invention clamps, it is characterized in that, described dynamic magnetic arm and magnetostatic arm, its magnetic loop formed is rectangle, and it is specially, one end of dynamic magnetic arm is 135 ° of angles, and one end of magnetostatic arm is 45° angle, when it merges between two, its junction is magnetic circuit opening and closing interface, namely dynamic magnetic arm and magnetostatic arm close up formation magnetic loop, open i.e. whole magnetic loop and disconnect.
Use the small current of a kind of live line measurement field-checking of the present invention to clamp and obtain following beneficial effect:
1. the small current pincers of a kind of live line measurement field-checking of the present invention, by the current clamp structure redesigned, change the problem that the volume of the current clamp under prior art is bigger than normal, solve because operating space is little, existing current clamp cannot penetrate current line in operation, to the problem that site operation personnel makes troubles;
2. the small current pincers of a kind of live line measurement field-checking of the present invention, change the winding space position around the secondary winding on current clamp magnetic core (magnetic circuit) under prior art, the working position measuring core assembly is extended to binding clip by caliper inside, reduce the inner length of magnetic path of caliper, and then reduce the length of magnetic path of whole current clamp, after the length of magnetic path reduces, just can corresponding reduction magnetic circuit sectional area, under the prerequisite of ratio ensureing magnetic circuit sectional area and the length of magnetic path, ensure that the measuring accuracy of current clamp.
Accompanying drawing explanation
Fig. 1 is the concrete structure schematic diagram of the small current pincers of a kind of live line measurement field-checking of the present invention;
Fig. 2 is the magnetic loop off-state schematic diagram of the small current pincers of a kind of live line measurement field-checking of the present invention;
Fig. 3 is the concrete schematic appearance of the small current pincers of a kind of live line measurement field-checking of the present invention.
In figure: 1-current clamp caliper, 1a-current clamp binding clip, 1b-caliper slideway, 2-caliper overcoat, the embedding of 3-caliper, A-measures core assembly, and A1-measures magnetic core, and A11-moves magnetic arm, the magnetostatic arm of A12-, A2-magnetic core guide rod, A3-push button.
Embodiment
Be further described below in conjunction with the small current pincers of drawings and Examples to a kind of live line measurement field-checking of the present invention.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, a kind of small current pincers of live line measurement field-checking, one end of current clamp caliper 1 is arranged in caliper overcoat 2, and the other end of current clamp caliper stretches out caliper overcoat, and the current clamp binding clip 1a place that this stretches out is provided with caliper embedding 3;
The middle part of the external part of current clamp caliper 1 has the equidirectional caliper slideway 1b with caliper;
The inside of current clamp binding clip 1a is provided with the measurement core assembly A that can move left and right along caliper slideway.
The small current pincers of live line measurement field-checking of the present invention change the winding space position around the secondary winding on current clamp magnetic core (magnetic circuit) under prior art, the working position measuring core assembly is extended to binding clip by caliper inside, reduce the inner length of magnetic path of caliper, and then reduce the length of magnetic path of whole current clamp, after the length of magnetic path reduces, just can corresponding reduction magnetic circuit sectional area, under the prerequisite of ratio ensureing magnetic circuit sectional area and the length of magnetic path, just ensure that the measuring accuracy of current clamp.
Measure core assembly A and comprise the measurement magnetic core A1 forming magnetic loop, magnetic core guide rod A2 and push button A3, wherein, measure magnetic core and be divided into upper and lower two parts, top is the dynamic magnetic arm A11 that can move left and right, bottom is fixed magnetostatic arm A12, and one end of magnetic core guide rod is arranged on the end of the dynamic magnetic arm on top, the other end of magnetic core guide rod is then arranged in the caliper slideway of size corresponding to it, push button is then arranged on the top of dynamic magnetic arm, dynamic magnetic arm and connected magnetic core guide rod is driven to horizontally slip at caliper slideway by promoting push button, whole magnetic loop is disconnected or closes.
Because the current clamp under prior art is left-right open-close, when namely opening, magnetic loop disconnects, during merging, magnetic loop is closed forms magnetic circuit, this design result in it, and work space is excessive in use, complicated narrow and small live line measurement environment cannot be tackled, and the small current of live line measurement field-checking of the present invention pincers, have employed front and back driving, as long as the position that the current clamp binding clip 1a of current clamp caliper 1 can arrive just can obtain magnetic loop to be opened/closed, carry out live line measurement operation.
As depicted in figs. 1 and 2, measure the dynamic magnetic arm A11 of magnetic core A1 and magnetostatic arm A12, its magnetic loop formed is rectangle, it is specially, and one end of dynamic magnetic arm is 135 ° of angles, and one end of magnetostatic arm is 45° angle, when it merges between two, its junction is magnetic circuit opening and closing interface, and namely dynamic magnetic arm and magnetostatic arm close up formation magnetic loop, opens i.e. whole magnetic loop and disconnects.
The small current pincers of a kind of live line measurement field-checking of the present invention, by the current clamp structure redesigned, change the problem that the volume of the current clamp under prior art is bigger than normal, solve because operating space is little, existing current clamp cannot penetrate current line in operation, to the problem that site operation personnel makes troubles.And the small current pincers of a kind of live line measurement field-checking of the present invention change the winding space position around the secondary winding on current clamp magnetic core (magnetic circuit) under prior art, the working position measuring core assembly is extended to binding clip by caliper inside, reduce the inner length of magnetic path of caliper, and then reduce the length of magnetic path of whole current clamp, after the length of magnetic path reduces, just can corresponding reduction magnetic circuit sectional area, under the prerequisite of ratio ensureing magnetic circuit sectional area and the length of magnetic path, ensure that the measuring accuracy of current clamp, the small current pincers of a kind of live line measurement field-checking of the present invention are applicable to various live line measurement field.
Claims (2)
1. the small current pincers of a live line measurement field-checking, comprise current clamp caliper (1), it is characterized in that:
One end of described current clamp caliper (1) is arranged in caliper overcoat (2), and the other end of current clamp caliper stretches out caliper overcoat, and current clamp binding clip (1a) place that this stretches out is provided with caliper embedding (3);
The middle part of the external part of described current clamp caliper (1) has the equidirectional caliper slideway (1b) with caliper;
The inside of described current clamp binding clip (1a) is provided with the measurement core assembly (A) that can move left and right along caliper slideway (1b);
Described measurement core assembly (A) comprises the measurement magnetic core (A1) forming magnetic loop, magnetic core guide rod (A2) and push button (A3), wherein, measure magnetic core and be divided into upper and lower two parts, top is the dynamic magnetic arm (A11) that can move left and right, bottom is fixed magnetostatic arm (A12), and one end of magnetic core guide rod is arranged on the end of the dynamic magnetic arm on top, the other end of magnetic core guide rod is then arranged in the caliper slideway (1b) of size corresponding to it, push button is then arranged on the top of dynamic magnetic arm, dynamic magnetic arm and connected magnetic core guide rod is driven to horizontally slip at caliper slideway by promoting push button, whole magnetic loop is disconnected or closes.
2. the small current pincers of a kind of live line measurement field-checking as claimed in claim 1, it is characterized in that, described dynamic magnetic arm (A11) and magnetostatic arm (A12), its magnetic loop formed is rectangle, it is specially, one end of dynamic magnetic arm is 135 ° of angles, and one end of magnetostatic arm is 45° angle, when it merges between two, its junction is magnetic circuit opening and closing interface, namely dynamic magnetic arm and magnetostatic arm close up and form rectangular magnetic loop, and moving that magnetic arm and magnetostatic arm open is that whole magnetic loop disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532858.3A CN103048518B (en) | 2012-12-11 | 2012-12-11 | A kind of small current pincers of live line measurement field-checking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532858.3A CN103048518B (en) | 2012-12-11 | 2012-12-11 | A kind of small current pincers of live line measurement field-checking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103048518A CN103048518A (en) | 2013-04-17 |
| CN103048518B true CN103048518B (en) | 2015-12-02 |
Family
ID=48061230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210532858.3A Active CN103048518B (en) | 2012-12-11 | 2012-12-11 | A kind of small current pincers of live line measurement field-checking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103048518B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4283677A (en) * | 1979-05-18 | 1981-08-11 | Shoji Niwa | Clamp type galvanometer |
| CN2681143Y (en) * | 2004-01-07 | 2005-02-23 | 袁剑敏 | Multifunctional digital current measurement clamp meter |
| CN201116926Y (en) * | 2007-11-29 | 2008-09-17 | 王聚新 | Pincers-shaped fast electric larceny monitoring instrument |
| CN102012447A (en) * | 2010-10-12 | 2011-04-13 | 邢台供电公司 | Telescopic clip-on ammeter |
| JP2012112747A (en) * | 2010-11-24 | 2012-06-14 | Hioki Ee Corp | Clamp type measuring instrument and clamp sensor |
| CN202443057U (en) * | 2012-03-06 | 2012-09-19 | 任守华 | Pincers-shaped current sensor |
-
2012
- 2012-12-11 CN CN201210532858.3A patent/CN103048518B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4283677A (en) * | 1979-05-18 | 1981-08-11 | Shoji Niwa | Clamp type galvanometer |
| CN2681143Y (en) * | 2004-01-07 | 2005-02-23 | 袁剑敏 | Multifunctional digital current measurement clamp meter |
| CN201116926Y (en) * | 2007-11-29 | 2008-09-17 | 王聚新 | Pincers-shaped fast electric larceny monitoring instrument |
| CN102012447A (en) * | 2010-10-12 | 2011-04-13 | 邢台供电公司 | Telescopic clip-on ammeter |
| JP2012112747A (en) * | 2010-11-24 | 2012-06-14 | Hioki Ee Corp | Clamp type measuring instrument and clamp sensor |
| CN202443057U (en) * | 2012-03-06 | 2012-09-19 | 任守华 | Pincers-shaped current sensor |
Non-Patent Citations (1)
| Title |
|---|
| 钳式传感器_德阳蜀电电力技术有限公司;佚名;《德阳蜀电电力技术有限公司官方网站》;20110318;第2页附图以及文字介绍 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103048518A (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207336689U (en) | A kind of special current sensing means of power transmission cable Insulation Inspection System | |
| CN103048518B (en) | A kind of small current pincers of live line measurement field-checking | |
| CN105527544A (en) | Distribution line fault positioning device | |
| CN204612641U (en) | A kind of hot-line measuring instrument | |
| CN107907714A (en) | A kind of multifunctional electric leakage detects utensil | |
| CN204203406U (en) | A kind of 10kV cable fault comprehensive monitoring and locating device | |
| CN204101613U (en) | A kind of non-contact switch amount condition checkout gear | |
| CN207689558U (en) | One kind being suitable for remote operated current measuring device | |
| CN109407034A (en) | A kind of synchronization of great current mutual inductor first and second termination | |
| CN206281918U (en) | Connector inside length needle detecting device | |
| CN204831927U (en) | Thermocouple tensile test device | |
| CN208334617U (en) | A kind of binding clip verifying transformer station direct current system leakage current mutual inductor | |
| CN103630727A (en) | Load checking ammeter | |
| CN206096225U (en) | Compound magnetic core current transformer | |
| CN202661253U (en) | Accurate measuring apparatus for instantaneous opening and closing point of breaker | |
| CN204666289U (en) | Circuit breaker short circuit protection pick-up unit | |
| CN205246809U (en) | Built on stilts type line fault indicator | |
| CN203178317U (en) | Metal drew string type clamp for switch cabinet test | |
| CN205484651U (en) | Distribution lines fault locating device | |
| CN204422742U (en) | Intelligent electric energy meter remote supervision system | |
| CN204269759U (en) | Mutual inductor polarity somascope | |
| CN205070099U (en) | Dolly formula switch test plug | |
| CN203377548U (en) | Ultrahigh ground wire hanging tool | |
| CN204011795U (en) | With the earth rod of electroscope function | |
| CN204188660U (en) | Lightning arrester live-line test Special wire-clip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |