CN103996508B - A kind of instrument transformer with water proof type shell - Google Patents
A kind of instrument transformer with water proof type shell Download PDFInfo
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- CN103996508B CN103996508B CN201410226586.3A CN201410226586A CN103996508B CN 103996508 B CN103996508 B CN 103996508B CN 201410226586 A CN201410226586 A CN 201410226586A CN 103996508 B CN103996508 B CN 103996508B
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- instrument transformer
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- sealing plate
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 160
- 239000004593 Epoxy Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 2
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 241000168254 Siro Species 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a kind of instrument transformer with water proof type shell, the technical problem of solution: for above-mentioned existing conventional current instrument transformer because water resistance is poor, cannot the problem of prolonged application in the adverse circumstances such as moist or water-immerged.Its concrete technical scheme is as follows: a kind of instrument transformer with water proof type shell, comprise the first instrument transformer seat, the second instrument transformer seat, two the semicircle magnetic cores being wound around enameled wire loop, two recessed sealing plates, two convex sealing plates, two sealing ring and fastening bolts; Two recessed sealing plates, two convex sealing plates and two sealing rings form two sealing units; Sealing unit comprise a recessed sealing plate, convex sealing plate and a sealing ring; First instrument transformer seat is identical with the second instrument transformer holder structure and be symmetrical structure; First instrument transformer seat and the second instrument transformer seat are equipped with magnetic core mounting groove; The end face of the first instrument transformer seat is arranged with two sealing plate mounting grooves.
Description
Technical field
The present invention relates to a kind of high-tension cable state parameter and detect instrument transformer structure, particularly relate to a kind of instrument transformer with water proof type shell of high-tension cable detection current.
Background technology
The develop rapidly of building along with China large-and-medium size cities and the requirement of urban planning, the scale of electric power system power transmission and transformation network is also increasing, especially the high voltage power transmission and transforming network of 110kV and above grade.The advantages such as high-tension cable takes up an area less with it, lay convenience, personal safety guarantee, power supply reliability is high, maintenance workload is few are widely applied in high voltage power transmission and transforming network.Such high-tension cable adopts the mounting means of direct-burried, tunnel or crane span structure mostly, the mode of maintenance is time-consuming, effort to adopt Traditional Man to patrol and examine, and the real-time status of cable cannot be fullyed understand, so adopt the mode of on-line checkingi at present more, some on-line monitoring equipment are installed, as circulation monitoring device, cable induction energy taking device etc., is all furnished with current transformer.The instrument transformer being applied to this occasion in industry all adopts retractable structure, i.e. 2 semicircular instrument transformers, on-the-spot simple installation formation closed structure, there is no waterproof sealing structure, can not prolonged application in the adverse circumstances such as moist or water-immerged, limit the application of this kind of on-Line Monitor Device.
Summary of the invention
Technical problem to be solved by this invention is: for above-mentioned existing conventional current instrument transformer because water resistance is poor, cannot the problem of prolonged application in the adverse circumstances such as moist or water-immerged.
For solving the problems of the technologies described above, design philosophy of the present invention is: by injection mo(u)lding, forms transformer casing, connects and fix transformer casing with rust-proof type holding screw, forms the structure of Fast Installation, and joint close interface adopts the sealing of sealing ring unit.Its concrete technical scheme is as follows:
With an instrument transformer for water proof type shell, comprise the first instrument transformer seat, the second instrument transformer seat, two the semicircle magnetic cores being wound around enameled wire loop, two recessed sealing plates, two convex sealing plates, two sealing ring and fastening bolts;
Described two recessed sealing plates, two convex sealing plates and two sealing rings form two sealing units; Sealing unit comprise a recessed sealing plate, convex sealing plate and a sealing ring; Sealing ring is arranged in the groove on recessed sealing plate, and the projection correspondence on convex sealing plate is inserted in the groove on recessed sealing plate;
First instrument transformer seat is identical with the second instrument transformer holder structure and be symmetrical structure; First instrument transformer seat and the second instrument transformer seat are equipped with magnetic core mounting groove; The end face of the first instrument transformer seat is arranged with two sealing plate mounting grooves; The position that second instrument transformer seat is corresponding with the first instrument transformer seat is also provided with two sealing plate mounting grooves; End face and the end face relative combinations of the second instrument transformer seat of the first instrument transformer seat install the transformer casing becoming circular ring type afterwards; After first instrument transformer seat and the second instrument transformer seat combine, the magnetic core mounting groove of the first instrument transformer seat and the magnetic core mounting groove of the second instrument transformer seat form a closed circular recess; Two sealing plate mounting grooves correspondences on two sealing plate mounting grooves on first instrument transformer seat end face and the second instrument transformer seat end face form two for installing the sealing unit mounting groove of sealing unit;
Wherein, described first instrument transformer seat is provided with the cross-drilled hole for install fastening bolt identical with magnetic core mounting groove;
Being wound around two semicircle magnetic cores of enameled wire loop circular rings magnetic core of encircling a city is arranged in aforementioned circle groove by epoxy sealing glue sealing;
Fastening bolt is arranged in the cross-drilled hole on the first instrument transformer seat;
Aforementioned two sealing units are separately positioned in aforesaid two sealing unit mounting grooves; In two sealing plate mounting grooves on first instrument transformer seat end face, one install be recessed sealing plate, another install be convex sealing plate; On described second instrument transformer seat with the first instrument transformer seat is installed recessed sealing plate what install in the corresponding sealing plate mounting groove of sealing plate mounting groove is convex sealing plate; On second instrument transformer seat with the first instrument transformer seat is installed convex sealing plate what install in the corresponding sealing plate mounting groove of sealing plate mounting groove is recessed sealing plate.
Further, described first instrument transformer seat and the second instrument transformer seat are semicircle.The shape of the first instrument transformer seat of the present invention and the second instrument transformer seat mainly coordinates magnetic core, because magnetic core will form a loop, the shape of magnetic core mainly forms a circle by two semicircle magnetic cores, and therefore, the first instrument transformer seat and the second instrument transformer seat are also all set to semicircle
Further, described sealing unit is one-body molded.The one-body molded employing molded sealing ring of sealing unit of the present invention, its water resistance is better.
Further, described first instrument transformer seat and the second instrument transformer seat are all one-body molded.
Further, two semicircle magnetic cores of described winding enameled wire loop are combined into an entirety by epoxy sealing glue sealing with the first instrument transformer seat and the second instrument transformer seat.Epoxy sealing glue of the present invention is fluid sealant of the prior art, and its concrete composition the present invention is not described in detail.The present invention adopts epoxy sealing glue to seal and two semicircle magnetic cores and transformer casing is sealed to an entirety, and it can arrive good waterproof seal.
Instrument transformer of the present invention, in use, open be stuck on cable under test by forming the first instrument transformer seat of transformer casing and the second instrument transformer seat, after by rust-proof type fastening bolt, the first instrument transformer seat and the second instrument transformer seat are coupled together, form an entirety.
The enameled wire loop being wrapped in two semicircle magnetic cores of the present invention is enameled wire loop of the prior art, and its concrete structure the present invention is not described in detail.
The present invention's advantage compared with prior art: this structure adopts multiple waterproof sealing measure: injection mo(u)lding, defines integrated transformer casing; Use epoxy sealing glue cast magnetic core and transformer casing, the two is sealed to one, signal cable is drawn in the locking of waterproof fastening bolt; Core cross section contact site uses sealing ring and sealing plate male and fomale(M&F) fitted seal; Antirust holding screw by 2 semicircle instrument transformer housing compact siro spinning technology together.Can guarantee that instrument transformer is in moist, even long-term reliable use in the environment of immersion, has good on-the-spot application by these measures.
Accompanying drawing explanation
Fig. 1 is explosive view of the present invention.
Fig. 2 is structural representation of the present invention.
Wherein, 1 is fastening bolt, and 2 is the first instrument transformer seat, and 3 is recessed sealing plate, and 4 is sealing ring, and 5 is convex sealing plate, and 6 is magnetic core, and 7 is the second instrument transformer seat, and 8 is sealing plate mounting groove, and 9 is magnetic core mounting groove, and 10 is groove, and 11 is projection, and 12 is cross-drilled hole.
Embodiment
For making content of the present invention more become apparent, be further described below in conjunction with accompanying drawing 1-Fig. 2 and embodiment.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
With an instrument transformer for water proof type shell, comprise the first instrument transformer seat 2, second instrument transformer seat 7, two semicircle magnetic cores, 6, two recessed sealing plates, 3, two convex sealing plates, 5, two sealing rings 4 being wound around enameled wire loop and fastening bolt 1;
Described two recessed sealing plates 3, two convex sealing plates 5 and two sealing rings 4 form two sealing units; Sealing unit comprises a recessed sealing plate 3, convex sealing plate 5 and a sealing ring 4; Sealing ring 4 is arranged in the groove 10 on recessed sealing plate 3, and projection 11 correspondence on convex sealing plate 5 is inserted in the groove 10 on recessed sealing plate 3;
First instrument transformer seat 2 is identical with the second instrument transformer seat 7 structure and be symmetrical structure; First instrument transformer seat 2 and the second instrument transformer seat 7 are equipped with magnetic core mounting groove 9; The end face of the first instrument transformer seat 2 is arranged with two sealing plate mounting grooves 8; The position that described second instrument transformer seat 7 is corresponding with the first instrument transformer seat 2 is also provided with two sealing plate mounting grooves 8; End face and the end face relative combinations of the second instrument transformer seat 7 of the first instrument transformer seat 2 install the transformer casing becoming circular ring type afterwards; After described first instrument transformer seat 2 and the second instrument transformer seat 7 combine, the magnetic core mounting groove of the first instrument transformer seat 2 and the magnetic core mounting groove of the second instrument transformer seat 7 form a closed circular recess; Two sealing plate mounting grooves 8 correspondences on two sealing plate mounting grooves 8 on described first instrument transformer seat 2 end face and the second instrument transformer seat 7 end face form two for installing the sealing unit mounting groove of sealing unit;
Wherein, described first instrument transformer seat 2 is provided with the cross-drilled hole 12 for install fastening bolt 1 identical with magnetic core mounting groove 9;
Being wound around two semicircle magnetic cores 6 of enameled wire loop circular rings magnetic core of encircling a city is arranged in aforementioned circle groove by epoxy sealing glue sealing; Fastening bolt 1 is arranged in the cross-drilled hole 11 on the first instrument transformer seat 2; Two sealing units are separately positioned in aforesaid two sealing unit mounting grooves; In two sealing plate mounting grooves 8 on described first instrument transformer seat 2 end face, one install be recessed sealing plate 3, another install be convex sealing plate 5; What install in the sealing plate mounting groove 8 corresponding with the sealing plate mounting groove 8 the first instrument transformer seat 2 being installed recessed sealing plate 3 on described second instrument transformer seat 7 is convex sealing plate 5; What install in the sealing plate mounting groove 8 corresponding with the sealing plate mounting groove 8 the first instrument transformer seat 2 being installed convex sealing plate 5 on the second instrument transformer seat 7 is recessed sealing plate 3.
The concrete installation process of the present embodiment is:
The first step, assembling transformer casing: first filled in by sealing ring 4 in the groove 10 of recessed sealing plate 3, then inserted by the projection 11 of convex sealing plate 5 in the groove 10 of recessed sealing plate 3, now projection 11 just in time withstands sealing ring 4, forms sealing unit; In the first instrument transformer seat 2, be inserted with 1 recessed sealing plate 3 and convex sealing plate 5 respectively in two sealing plate mounting grooves 8, what install in the sealing plate mounting groove 8 corresponding with the sealing plate mounting groove 8 the first instrument transformer seat 2 being installed convex sealing plate 5 on the second instrument transformer seat 7 is recessed sealing plate 3.When the first instrument transformer seat 2 and the second instrument transformer seat 7 Butt Assembling, convex sealing plate 5 on the corresponding second instrument transformer seat 7 of recessed sealing plate 3 on first instrument transformer seat 2, recessed sealing plate 3 on the corresponding second instrument transformer seat 7 of convex sealing plate 5 on first instrument transformer seat 2, after this has walked, integral transformer shell has assembled.Adopt sealing unit to seal between the joint close interface of this transformer casing, its water resistance is better.
Second step, installs fastening bolt 1: loaded by fastening bolt 1 in the cross-drilled hole 12 on first instrument transformer seat 2.The effect of the fastening bolt 1 in the present invention is for drawing the instrument transformer cable be wrapped on magnetic core.
3rd step, according to technical requirement index, two semicircle magnetic cores 6 is wound around enameled wire loop, and is drawn by the wire hole of instrument transformer cable from fastening bolt 1.
4th step, installs magnetic core: be contained in the magnetic core mounting groove 9 on the first instrument transformer seat 2 and the second instrument transformer seat 7 respectively by two the semicircle magnetic cores 6 being wound around enameled wire loop, transformer casing and magnetic core is poured into an integrated entity after installing magnetic core 6 with epoxy sealing glue.
Instrument transformer of the present invention, in use, open be stuck on cable under test by forming the first instrument transformer seat 2 of transformer casing and the second instrument transformer seat 7, after by rust-proof type fastening bolt, the first instrument transformer seat 2 and the second instrument transformer seat 7 are coupled together, form an entirety.
In addition to the implementation, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of application claims.
Part that the present invention does not relate to is all same as the prior art or adopt prior art to be realized.
Claims (5)
1. the instrument transformer with water proof type shell, it is characterized in that, comprise the first instrument transformer seat (2), the second instrument transformer seat (7), two the semicircle magnetic cores (6) being wound around enameled wire loop, two recessed sealing plates (3), two convex sealing plates (5), two sealing rings (4) and fastening bolts (1);
Described two recessed sealing plates (3), two convex sealing plates (5) and two sealing rings (4) form two sealing units; Described sealing unit comprises a recessed sealing plate (3), a convex sealing plate (5) and a sealing ring (4); Sealing ring (4) is arranged in the groove (10) on recessed sealing plate (3), and projection (11) correspondence on convex sealing plate (5) is inserted in the groove (10) on recessed sealing plate (3);
Described first instrument transformer seat (2) is identical with the second instrument transformer seat (7) structure and be symmetrical structure; First instrument transformer seat (2) and the second instrument transformer seat (7) are equipped with magnetic core mounting groove (9); The end face of the first instrument transformer seat (2) is arranged with two sealing plate mounting grooves (8); The position that described second instrument transformer seat (7) is corresponding with the first instrument transformer seat (2) is also provided with two sealing plate mounting grooves (8); End face and the end face relative combinations of the second instrument transformer seat (7) of the first instrument transformer seat (2) install the transformer casing becoming circular ring type afterwards; After described first instrument transformer seat (2) and the second instrument transformer seat (7) combine, the magnetic core mounting groove of the first instrument transformer seat (2) and the magnetic core mounting groove of the second instrument transformer seat (7) form a closed circular recess; Two sealing plate mounting grooves (8) correspondences on two sealing plate mounting grooves (8) on described first instrument transformer seat (2) end face and the second instrument transformer seat (7) end face form two for installing the sealing unit mounting groove of sealing unit;
Wherein, described first instrument transformer seat (2) is provided with the cross-drilled hole (12) for installing fastening bolt (1) communicated with magnetic core mounting groove (9);
Two semicircle magnetic core (6) one, the besieged city circular rings magnetic cores being wound around enameled wire loop are arranged in aforementioned circle groove by epoxy sealing glue sealing;
Fastening bolt (1) is arranged in the cross-drilled hole (12) on the first instrument transformer seat (2);
Aforementioned two sealing units are separately positioned in aforesaid two sealing unit mounting grooves; In two sealing plate mounting grooves (8) on described first instrument transformer seat (2) end face, one install be recessed sealing plate (3), another install be convex sealing plate (5); What install in the sealing plate mounting groove (8) corresponding with the sealing plate mounting groove (8) the first instrument transformer seat (2) being installed recessed sealing plate (3) on described second instrument transformer seat (7) is convex sealing plate (5); What install in the sealing plate mounting groove (8) corresponding with the sealing plate mounting groove (8) the first instrument transformer seat (2) being installed convex sealing plate (5) on the second instrument transformer seat (7) is recessed sealing plate (3).
2., as claimed in claim 1 with the instrument transformer of water proof type shell, it is characterized in that: described first instrument transformer seat (2) and the second instrument transformer seat (7) are semicircle.
3., as claimed in claim 1 with the instrument transformer of water proof type shell, it is characterized in that: described sealing unit is one-body molded.
4., as claimed in claim 1 with the instrument transformer of water proof type shell, it is characterized in that: described first instrument transformer seat (2) and the second instrument transformer seat (7) are all one-body molded.
5. as claimed in claim 1 with the instrument transformer of water proof type shell, it is characterized in that: two semicircle magnetic cores (6) of described winding enameled wire loop are combined into an entirety by epoxy sealing glue sealing with the first instrument transformer seat (2) and the second instrument transformer seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226586.3A CN103996508B (en) | 2014-05-26 | 2014-05-26 | A kind of instrument transformer with water proof type shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226586.3A CN103996508B (en) | 2014-05-26 | 2014-05-26 | A kind of instrument transformer with water proof type shell |
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| Publication Number | Publication Date |
|---|---|
| CN103996508A CN103996508A (en) | 2014-08-20 |
| CN103996508B true CN103996508B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410226586.3A Active CN103996508B (en) | 2014-05-26 | 2014-05-26 | A kind of instrument transformer with water proof type shell |
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| CN (1) | CN103996508B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605223B (en) * | 2016-02-25 | 2017-11-17 | 国家电网公司 | A kind of water proof rubber device of open type CT electricity getting devices |
| CN105609299A (en) * | 2016-03-11 | 2016-05-25 | 吴世植 | Waterproof detachable current transformer |
| CN108231385B (en) * | 2018-03-22 | 2024-05-03 | 国家海洋技术中心 | Ocean inductively coupled data transmission underwater magnetic ring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09213551A (en) * | 1996-01-29 | 1997-08-15 | Toko Denki Kk | Current transformer |
| CN102005292A (en) * | 2010-10-18 | 2011-04-06 | 北京瑞奇恩电器设备有限公司 | Antirust open type current transformer |
| CN202796419U (en) * | 2012-09-12 | 2013-03-13 | 山东康威通信技术股份有限公司 | Current transformer for accurately measuring linearity of small current and unsaturation degree of large current |
| CN203433986U (en) * | 2013-08-29 | 2014-02-12 | 宁波恒力达科技有限公司 | Outdoor low-voltage open-close type combined mutual inductor |
| CN203910507U (en) * | 2014-05-26 | 2014-10-29 | 国家电网公司 | Transformer with waterproof shell |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201667273U (en) * | 2009-11-27 | 2010-12-08 | 厦门安达兴电气有限公司 | Structure of current transformer |
| CN103456477B (en) * | 2013-08-29 | 2016-04-13 | 宁波恒力达科技有限公司 | Outdoor low voltage open-close type combination transformer |
-
2014
- 2014-05-26 CN CN201410226586.3A patent/CN103996508B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09213551A (en) * | 1996-01-29 | 1997-08-15 | Toko Denki Kk | Current transformer |
| CN102005292A (en) * | 2010-10-18 | 2011-04-06 | 北京瑞奇恩电器设备有限公司 | Antirust open type current transformer |
| CN202796419U (en) * | 2012-09-12 | 2013-03-13 | 山东康威通信技术股份有限公司 | Current transformer for accurately measuring linearity of small current and unsaturation degree of large current |
| CN203433986U (en) * | 2013-08-29 | 2014-02-12 | 宁波恒力达科技有限公司 | Outdoor low-voltage open-close type combined mutual inductor |
| CN203910507U (en) * | 2014-05-26 | 2014-10-29 | 国家电网公司 | Transformer with waterproof shell |
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| CN103996508A (en) | 2014-08-20 |
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