CN105140011A - Pincers-shaped zero sequence current transformer - Google Patents
Pincers-shaped zero sequence current transformer Download PDFInfo
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- CN105140011A CN105140011A CN201510418274.7A CN201510418274A CN105140011A CN 105140011 A CN105140011 A CN 105140011A CN 201510418274 A CN201510418274 A CN 201510418274A CN 105140011 A CN105140011 A CN 105140011A
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- pedestal
- magnetic coil
- zero sequence
- sequence current
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Abstract
The invention discloses a princers-shaped zero sequence current transformer, belonging to the technical field of a power sensing device. The princers-shaped zero sequence current transformer comprises a base, a left sensing clip and a right sensing clip, wherein the left sensing clip is fixedly connected with the base, the right sensing clip is connected with the base in a rotary way, the left sensing clip comprises a left shell and a left magnetic coil, the left shell is fixedly arranged on the base, the left magnetic coil is arranged in the left shell, the right sensing clip comprises a right shell, a right magnetic coil, a handle and a right limitation column, the right shell is movably arranged on the base, the right magnetic coil is arranged in the right shell, the handle is arranged at a connection end of the right shell and the base, the right limitation column is arranged on the handle, a left limitation column is arranged in the base, a rotary shaft is arranged on the handle, a vertical post is arranged at a position, corresponding to the rotary shaft, in the base, the rotary shaft is sleeved on the vertical post, a spring is sleeved on the outer wall of the rotary shaft, and the two ends of the spring are connected with the left limitation column and the right limitation column. The above pincers-shaped zero sequence current transformer can be independently replaced and used, can be operatedin a live-line way, can be directly sleeved on an insulation power line in a clamping way, is reasonable in structure, and is convenient to install and use.
Description
Technical field
The present invention relates to eletric power induction equipment technical field, particularly a kind of pincerlike zero sequence current mutual inductor.
Background technology
Traditional zero sequence current mutual inductor is current transformer with single-turn cored structure, be generally used for electrical protection apparatus as: Small Electric Current Earthing And Routing Device, microcomputer harmonic elimination device etc. support the use.Traditional zero sequence current mutual inductor structure is square closed or round sealed formula substantially.Can not change separately because existing current transformer local device damages, once parts damages, whole instrument transformer will be scrapped, thus causes equipment cost waste.And the wiring of main power source protection switch must be taken apart when traditional zero sequence current mutual inductor is installed, zero sequence current mutual inductor is inserted in power line, the tighter mains switch screw of bolt could use, have during electricity and must power-off could use, disassembly process bothers.
In view of this, the present inventor studies this, and develop a kind of pincerlike zero sequence current mutual inductor specially, this case produces thus.
Summary of the invention
The object of this invention is to provide a kind of can change separately use, can hot line job, can directly chuck on the power line of insulation, pincerlike zero sequence current mutual inductor rational in infrastructure, easy to install.
To achieve these goals, solution of the present invention is:
A kind of pincerlike zero sequence current mutual inductor, comprise pedestal, be fixedly connected with described pedestal left respond to press from both sides, be rotatably connected with described pedestal right respond to press from both sides, described left induction folder comprises the left shell be fixedly mounted on pedestal, be arranged on the left magnetic coil in described left shell, described right induction folder comprises the right shell body be movably arranged on pedestal, be arranged on the right magnetic coil of described right shell body inside, be located at the handle of the link of described right shell body and described pedestal, be located at the right limit post on handle, left limit post is provided with in described pedestal, described handle is provided with rotating shaft, in described pedestal, the position corresponding with described rotating shaft is provided with column, described rotating shaft is socketed on described column, described rotating shaft outer wall is arranged with spring, the two ends of described spring are connected with described left limit post and described right limit post, spring is when initial condition, described left induction folder with described away from one end of pedestal rightly responded to the one end pressed from both sides away from pedestal and is connected, form the measured zone closed.
As preferably, described pedestal comprises the upper shell and lower house that are fixedly connected with, and described left limit post is located on described lower house.
As preferably, more than 2 reference columns are provided with in described lower house, be provided with the location hole of construction bolt in described reference column, position corresponding with location hole on described upper shell is provided with the screw of construction bolt, and described upper shell and described lower house are bolted to connection.
As preferably, described upper shell is fixedly connected with by adhesive with described lower house.
As preferably, be provided with the lead-out wire of described left magnetic coil and described right magnetic coil in described pedestal, described pedestal is provided with the cable jack be connected with described lead-out wire.
As preferably, described left magnetic coil is identical with the described right magnetic coil number of turns, and left magnetic coil and described right magnetic coil add up to 1/5th of overall measurement ampere number.
Pincerlike zero sequence current mutual inductor of the present invention, after the external cord jack on pedestal is connected with electric wire (as: leakage current controller) with external equipment, can be used as a kind of detection leak current fault equipment use.Adopt mobilizable clamp-type structure, break traditional zero-sequence transformer enclosed construction restriction, by pressing, decontrol the opening and closing movement that handle controls right induction folder, be convenient to install, can change separately uses, can hot line job, can directly chuck insulation power line on, can connect leakage current controller detect leak electricity use.
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the pincerlike open mode stereogram of the pincerlike zero sequence current mutual inductor of the present embodiment;
Fig. 2 is the present embodiment pincerlike zero sequence current mutual inductor internal structure schematic diagram.
Embodiment
As shown in Figure 1-2, a kind of pincerlike zero sequence current mutual inductor, comprises pedestal 3, the left induction folder 1 be fixedly connected with pedestal 3, and the right induction folder 2 be rotatably connected with pedestal 3; Described left induction folder 1 comprises the left shell 8 be fixedly mounted on pedestal 3, and is arranged on the left magnetic coil 7 in left shell 8, and described right induction folder 2 comprises the right shell body 15 be movably arranged on pedestal 3, and is arranged on the right magnetic coil 14 of right shell body 15 inside.The lead-out wire 10 of described left magnetic coil 7 and right magnetic coil 14 is drawn by the cable jack 12 arranged on pedestal 3, and cable jack 12 is connected with external equipment electric wire 13.In the present embodiment, described pedestal 3 comprises upper shell and lower house 11, wherein, 2 reference columns are provided with in described lower house 11, be respectively left reference column 9 and right reference column 17, be provided with location hole 21 in left reference column 9 and right reference column 17, described upper shell is provided with the screw 4 corresponding with location hole 21, is fixedly mounted on lower house 11 by upper shell by bolt.Upper shell and lower house 11 also can be fixed installation by adhesive.Described left magnetic coil 7 is identical with described right magnetic coil 14 number of turns, coil number of total coils calculates by overall measurement electric current, be generally 1/5th of overall measurement ampere number, as: overall measurement electric current 600A, then left magnetic coil 7 is 120 circles with described right magnetic coil 14 number of turns.
Described right shell body 15 is provided with handle 5 with the link of pedestal 3, described handle 5 is provided with a rotating shaft 16, for simplifying the structure of pedestal 3 inside, rotating shaft 16 can directly be socketed on right reference column 17, and right induction folder 2 can be rotated along right reference column 17, described rotating shaft 16 outer wall is arranged with spring 19, the two ends of spring 19 are equipped with limited post, are respectively left limit post 20 and right limit post 18, wherein, left limit post 20 is fixed on pedestal 3 lower house 11, and right limit post 18 is fixed on handle 5.Spring 19 is by the anglec of rotation of the limited post joystick at two ends, and then control the folding of right induction folder 2, spring 19 is when initial condition, and described left induction folder 1 connects with described right induction folder 2 one end away from pedestal 3 away from one end of pedestal 3, forms the measured zone 6 closed.When pincerlike zero sequence current mutual inductor carry out installing, change time, by fixed handle 5, right induction folder 2 is opened, after installation terminates, decontrol handle 5, right induction folder 2 is under the elastic reaction of spring 19, return to initial closure state, start the drain conditions detecting electric wire.
Above-described embodiment and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.
Claims (6)
1. a pincerlike zero sequence current mutual inductor, comprise pedestal, it is characterized in that: also comprise be fixedly connected with described pedestal left and respond to and press from both sides, be rotatably connected with described pedestal right respond to press from both sides, described left induction folder comprises the left shell be fixedly mounted on pedestal, be arranged on the left magnetic coil in described left shell, described right induction folder comprises the right shell body be movably arranged on pedestal, be arranged on the right magnetic coil of described right shell body inside, be located at the handle of the link of described right shell body and described pedestal, be located at the right limit post on handle, left limit post is provided with in described pedestal, described handle is provided with rotating shaft, in described pedestal, the position corresponding with described rotating shaft is provided with column, described rotating shaft is socketed on described column, described rotating shaft outer wall is arranged with spring, the two ends of described spring are connected with described left limit post and described right limit post, spring is when initial condition, described left induction folder with described away from one end of pedestal rightly responded to the one end pressed from both sides away from pedestal and is connected, form the measured zone closed.
2. pincerlike zero sequence current mutual inductor as claimed in claim 1, is characterized in that: described pedestal comprises the upper shell and lower house that are fixedly connected with, and described left limit post is located on described lower house.
3. pincerlike zero sequence current mutual inductor as claimed in claim 2, it is characterized in that: in described lower house, be provided with more than 2 reference columns, the location hole of construction bolt is provided with in described reference column, position corresponding with location hole on described upper shell is provided with the screw of construction bolt, and described upper shell and described lower house are bolted to connection.
4. pincerlike zero sequence current mutual inductor as claimed in claim 2, is characterized in that: described upper shell is fixedly connected with by adhesive with described lower house.
5. the pincerlike zero sequence current mutual inductor as described in as arbitrary in Claims 1 to 4, it is characterized in that: the lead-out wire being provided with described left magnetic coil and described right magnetic coil in described pedestal, described pedestal is provided with the cable jack be connected with described lead-out wire.
6. the pincerlike zero sequence current mutual inductor as described in as arbitrary in Claims 1 to 4, it is characterized in that: described left magnetic coil is identical with the described right magnetic coil number of turns, left magnetic coil and described right magnetic coil add up to 1/5th of overall measurement ampere number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418274.7A CN105140011A (en) | 2015-07-16 | 2015-07-16 | Pincers-shaped zero sequence current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418274.7A CN105140011A (en) | 2015-07-16 | 2015-07-16 | Pincers-shaped zero sequence current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105140011A true CN105140011A (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510418274.7A Pending CN105140011A (en) | 2015-07-16 | 2015-07-16 | Pincers-shaped zero sequence current transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN105140011A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802472A (en) * | 2017-04-28 | 2018-11-13 | 南宁富桂精密工业有限公司 | Current sensing means |
| CN112098683A (en) * | 2020-08-04 | 2020-12-18 | 杭州华春科技有限公司 | Anti-theft device of pincerlike acquisition terminal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4283677A (en) * | 1979-05-18 | 1981-08-11 | Shoji Niwa | Clamp type galvanometer |
| CN201060716Y (en) * | 2007-05-28 | 2008-05-14 | 东莞市瑞柯电机有限公司 | Induction clamp |
| CN201478109U (en) * | 2009-06-25 | 2010-05-19 | 福建敏讯电气科技有限公司 | Zero-magneticflux small-current pincer-shaped mutual inductor |
| CN201845652U (en) * | 2010-06-04 | 2011-05-25 | 徐其信 | Clamping current transformer |
| CN203178348U (en) * | 2013-04-08 | 2013-09-04 | 临安亿安电力电子科技有限公司 | Large-aperture leakage current clamp meter |
| CN204884846U (en) * | 2015-07-16 | 2015-12-16 | 国网浙江义乌市供电公司 | Pincerlike zero sequence current transformer |
-
2015
- 2015-07-16 CN CN201510418274.7A patent/CN105140011A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4283677A (en) * | 1979-05-18 | 1981-08-11 | Shoji Niwa | Clamp type galvanometer |
| CN201060716Y (en) * | 2007-05-28 | 2008-05-14 | 东莞市瑞柯电机有限公司 | Induction clamp |
| CN201478109U (en) * | 2009-06-25 | 2010-05-19 | 福建敏讯电气科技有限公司 | Zero-magneticflux small-current pincer-shaped mutual inductor |
| CN201845652U (en) * | 2010-06-04 | 2011-05-25 | 徐其信 | Clamping current transformer |
| CN203178348U (en) * | 2013-04-08 | 2013-09-04 | 临安亿安电力电子科技有限公司 | Large-aperture leakage current clamp meter |
| CN204884846U (en) * | 2015-07-16 | 2015-12-16 | 国网浙江义乌市供电公司 | Pincerlike zero sequence current transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802472A (en) * | 2017-04-28 | 2018-11-13 | 南宁富桂精密工业有限公司 | Current sensing means |
| CN112098683A (en) * | 2020-08-04 | 2020-12-18 | 杭州华春科技有限公司 | Anti-theft device of pincerlike acquisition terminal |
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Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |