CN106353635A - Detection device for leakage current - Google Patents
Detection device for leakage current Download PDFInfo
- Publication number
- CN106353635A CN106353635A CN201610974390.1A CN201610974390A CN106353635A CN 106353635 A CN106353635 A CN 106353635A CN 201610974390 A CN201610974390 A CN 201610974390A CN 106353635 A CN106353635 A CN 106353635A
- Authority
- CN
- China
- Prior art keywords
- leakage current
- detection device
- clamp
- amperemeter
- detected circuit
- 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.)
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Classifications
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The invention discloses a detection device for leakage current. The detection device comprises a tong-type ammeter main body and a stretchable rod which is detachably connected with the tong-type ammeter main body. When a detected circuit is subjected to leakage current detection, a user can press a switch button on a leakage current host engine, open the stretchable rod by pulling, hoist a tong wire clamping port on the tong-type ammeter main body to the detected circuit and clamp the detected circuit, so as to perform the leakage current detection on the detected circuit. Thus, the tong-type ammeter main body can be ascended to the detected circuit by opening the stretchable rod by pulling when the leakage current detection is performed on the detected circuit, and the tong wire clamping port is elastic, so that the clamped detected circuit can be automatically opened when the tong wire clamping port is in contact with the detected circuit, so as to detect the detected circuit. Compared with the prior art, the detection device disclosed by the invention has the advantages that the detection personnel can detect the leakage current of the detected circuit on the ground, the time and labor are saved, and potential safety hazards can be greatly reduced.
Description
Technical field
The present invention relates to current detection technology field, in particular, it is related to a kind of leak current detection device.
Background technology
Leakage current is a kind of electric current overflowing after insulation impedance, mainly appears on the ground of distribution line insulation ag(e)ing
Side, can reflect that line insulation is aging and transconversion into heat situation.Leakage current not only can affect the normal operation of electrical network, but also can cause
Personal injury, or even wire insulation can be made to cross thermal initiation leakage fire because inside and outside.Accordingly, it would be desirable to the electric leakage to circuit
Stream carries out periodic detection.
In prior art, generally using clamp on amperemeter, being detected, clamp on amperemeter is by electric current to the leakage current of circuit
Transformer and ammeter composition.The pincerlike clamp mouth of current transformer opens when clutching spanner, to clamp test line, when putting
After driving spanner, pincerlike clamp mouth closure.When test line has leakage current, the current value measuring can be exported by current transformer
Shown to ammeter.
Although existing clamp on amperemeter can realize the detection to leakage current, before detecting every time, it is required for detecting
Personnel are increased at test line by equipment and are detected, not only waste time and energy, but also there is very big potential safety hazard.
Content of the invention
In view of this, the invention discloses a kind of leak current detection device, with solving prior art, leakage current is being carried out
During detection, with equipment, testing staff need to be increased at test line, lead to detection to be wasted time and energy, and there is very big potential safety hazard
Problem.
A kind of leak current detection device, comprising: clamp on amperemeter body and detachably connecting with described clamp on amperemeter body
The expansion link connecing；
Described clamp on amperemeter body upper part is provided with tool resilient pincer clamp mouth, is provided with line at described pincer clamp mouth
Circle, described clamp on amperemeter is originally provided with vivo and is connected with described coil, for the electricity producing described coil-induced changes of magnetic field
Circulation is melted into the leakage current main frame of corresponding current value, and described leakage current main frame is provided with switch key.
Preferably, described expansion link is insulating telescopic bar.
Preferably, two elasticity arms of described pincer clamp mouth are respectively arranged with a guide wheel.
Preferably, described clamp on amperemeter body lower part is provided with screwed hole, and the top of described expansion link is provided with and described spiral shell
The screw thread of pit adaptation.
Preferably, described leakage current main frame has electric current display screen.
Preferably, it is provided with, in described leakage current main frame, the circuit board being connected with described coil.
Preferably, there is in described leakage current main frame the memorizer for storing described current value.
Knowable to above-mentioned technical scheme, the invention discloses a kind of leak current detection device, comprising: clamp on amperemeter is originally
Body and the expansion link being detachably connected with this clamp on amperemeter body.When leakage current test is carried out to test line, press leakage
Switch key on electric current main frame, expansion link is pulled open, and so that the pincerlike clamp mouth on clamp on amperemeter body is increased to by survey line
At road, and clamp test line, so that leakage current test is carried out to test line.It follows that the leakage of conducting transmission line of the present invention
During current detecting, clamp on amperemeter body can be increased at test line by pulling open expansion link, due to pincerlike clamp mouth
There is elasticity, therefore when this pincerlike clamp mouth encounters test line, can opens voluntarily clamp test line, thus realize right
The detection of test line.Compared to existing technologies, using detection means disclosed by the invention, testing staff can be made on ground
The upper detection realized to test line leakage current, not only time saving and energy saving, and greatly reduce potential safety hazard.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
Disclosed accompanying drawing obtains other accompanying drawings.
Fig. 1 is a kind of structural representation of clamp on amperemeter body disclosed in the embodiment of the present invention；
Fig. 2 is a kind of structural representation of expansion link disclosed in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
The embodiment of the invention discloses a kind of leak current detection device, with solving prior art, leakage current is being detected
When, testing staff need to be increased at test line, lead to detection to be wasted time and energy, and there is very big potential safety hazard.
Referring to Fig. 1 and Fig. 2, respectively disclosed in the embodiment of the present invention a kind of structural representation of clamp on amperemeter body and
The structural representation of expansion link, wherein, clamp on amperemeter body and expansion link are detachably connected.
Specifically, clamp on amperemeter body upper part is provided with tool resilient pincer clamp mouth 11, is provided with pincerlike clamp mouth
Coil (not shown in figure 1), clamp on amperemeter is originally provided with vivo and is connected with described coil, for becoming described coil-induced magnetic field
Change the leakage current main frame 12 that the electric current producing changes into corresponding current value, leakage current main frame 12 is provided with switch key 13.
The operation principle of leak current detection device is:
When leakage current test is carried out to test line 10, press the switch key 13 on leakage current main frame 12, will stretch
Bar pulls open, and so that the pincerlike clamp mouth 11 on clamp on amperemeter body is increased at test line 10, and clamps test line 10, with
Leakage current test is carried out to test line 10.
In summary, during the leakage current test of conducting transmission line of the present invention, can be by pincerlike electric current by pulling open expansion link
Table body is increased at test line, because pincerlike clamp mouth 11 has elasticity, therefore when this pincerlike clamp mouth 11 encounter tested
During circuit 10, can opens voluntarily clamp test line 10, thus realizing the detection to test line 10.Compared to existing technology and
Speech, using detection means disclosed by the invention, can make testing staff realize the inspection to test line 10 leakage current on the ground
Survey, not only time saving and energy saving, and greatly reduce potential safety hazard.
For reducing potential safety hazard further, the preferred insulating telescopic bar of the expansion link in the present invention.
Before pincerlike clamp mouth 11 clamps test line 10, for reducing rubbing between pincerlike clamp mouth 11 and test line 10
Wipe, a guide wheel 14 can be respectively provided with two elasticity arms of pincerlike clamp mouth 11.
Preferably, clamp on amperemeter body and expansion link can be bolted, and the two can also be using other certainly
Connected mode realize be detachably connected.
In actual applications, hole 15 can be threaded in clamp on amperemeter body lower part, arrange on expansion link top and be somebody's turn to do
The screw thread 21 of screwed hole adaptation.
Wherein, leakage current main frame 12 has the electric current display screen for display measurement current value.
It is additionally provided with the circuit board (not shown in figure 1) being connected with coil in leakage current main frame 12.
For convenience of the detected value checking leakage current later, memorizer can also be set in leakage current main frame 12, to store
The current value of measurement.
Last in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant meaning
Covering comprising of nonexcludability, so that including a series of process of key elements, method, article or equipment not only include that
A little key elements, but also include other key elements being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element being limited by sentence "including a ...", does not arrange
Remove and also there is other identical element in the process including described key element, method, article or equipment.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (7)
1. a kind of leak current detection device it is characterised in that include: clamp on amperemeter body and with described clamp on amperemeter body
The expansion link being detachably connected；
Described clamp on amperemeter body upper part is provided with tool resilient pincer clamp mouth, is provided with coil at described pincer clamp mouth,
Described clamp on amperemeter is originally provided with vivo and is connected with described coil, and the electric current for producing described coil-induced changes of magnetic field turns
It is melted into the leakage current main frame of corresponding current value, described leakage current main frame is provided with switch key.
2. leak current detection device according to claim 1 is it is characterised in that described expansion link is insulating telescopic bar.
3. leak current detection device according to claim 1 it is characterised in that described pincer clamp mouth two elasticity arms
On be respectively arranged with a guide wheel.
4. leak current detection device according to claim 1 is it is characterised in that described clamp on amperemeter body lower part is provided with
Screwed hole, the top of described expansion link is provided with the screw thread being adapted to described screwed hole.
5. leak current detection device according to claim 1 is it is characterised in that described leakage current main frame has electric current and shows
Screen.
6. leak current detection device according to claim 1 it is characterised in that be provided with described leakage current main frame with described
The circuit board that coil connects.
7. leak current detection device according to claim 1 is it is characterised in that have for depositing in described leakage current main frame
Store up the memorizer of described current value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610974390.1A CN106353635A (en) | 2016-10-27 | 2016-10-27 | Detection device for leakage current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610974390.1A CN106353635A (en) | 2016-10-27 | 2016-10-27 | Detection device for leakage current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106353635A true CN106353635A (en) | 2017-01-25 |
Family
ID=57865068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610974390.1A Pending CN106353635A (en) | 2016-10-27 | 2016-10-27 | Detection device for leakage current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106353635A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596933A (en) * | 2018-11-22 | 2019-04-09 | 国网河南省电力公司民权县供电公司 | A kind of seal applied to electric field preventing ground fault |
| CN109752596A (en) * | 2017-11-08 | 2019-05-14 | 中国石油化工股份有限公司 | A kind of Novel loop resistivity-measuring devices |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012447A (en) * | 2010-10-12 | 2011-04-13 | 邢台供电公司 | Telescopic clip-on ammeter |
| CN202230120U (en) * | 2011-08-09 | 2012-05-23 | 浙江大合建设工程检测有限公司 | Clip-on ammeter |
| CN203422437U (en) * | 2013-03-21 | 2014-02-05 | 湖北省电力公司随州供电公司 | Pincer-like live-line tester for leakage current of zinc oxide arrester |
| CN204256024U (en) * | 2014-11-28 | 2015-04-08 | 国家电网公司 | A kind of scalable pincerlike current tester |
| CN105182167A (en) * | 2015-10-10 | 2015-12-23 | 国家电网公司 | Low-voltage null line leakage current detection apparatus |
| CN204945230U (en) * | 2015-09-18 | 2016-01-06 | 国网山东省电力公司日照供电公司 | A kind of telescopic clamp reometer |
-
2016
- 2016-10-27 CN CN201610974390.1A patent/CN106353635A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012447A (en) * | 2010-10-12 | 2011-04-13 | 邢台供电公司 | Telescopic clip-on ammeter |
| CN202230120U (en) * | 2011-08-09 | 2012-05-23 | 浙江大合建设工程检测有限公司 | Clip-on ammeter |
| CN203422437U (en) * | 2013-03-21 | 2014-02-05 | 湖北省电力公司随州供电公司 | Pincer-like live-line tester for leakage current of zinc oxide arrester |
| CN204256024U (en) * | 2014-11-28 | 2015-04-08 | 国家电网公司 | A kind of scalable pincerlike current tester |
| CN204945230U (en) * | 2015-09-18 | 2016-01-06 | 国网山东省电力公司日照供电公司 | A kind of telescopic clamp reometer |
| CN105182167A (en) * | 2015-10-10 | 2015-12-23 | 国家电网公司 | Low-voltage null line leakage current detection apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752596A (en) * | 2017-11-08 | 2019-05-14 | 中国石油化工股份有限公司 | A kind of Novel loop resistivity-measuring devices |
| CN109596933A (en) * | 2018-11-22 | 2019-04-09 | 国网河南省电力公司民权县供电公司 | A kind of seal applied to electric field preventing ground fault |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 2404, 188 Taian Road, Yinzhou District, Ningbo City, Zhejiang Province, 315100 Applicant after: Zhejiang Tianpai Technology Co., Ltd. Applicant after: State Grid Zhejiang Ninghai County Power Supply Company Applicant after: Ninghai County, Cangshan Electric Power Equipment Factory Co., Ltd. Address before: Room 302, Building B, Science and Technology Information Incubation Park, 655 Xueshi Road, Yinzhou District, Ningbo City, Zhejiang Province, 315100 Applicant before: NINGBO TOPIT INTELLIGENT TECHNOLOGY CO., LTD. Applicant before: State Grid Zhejiang Ninghai County Power Supply Company Applicant before: Ninghai County, Cangshan Electric Power Equipment Factory Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170125 |