CN103996508A - Mutual inductor with waterproof casing - Google Patents
Mutual inductor with waterproof casing Download PDFInfo
- Publication number
- CN103996508A CN103996508A CN201410226586.3A CN201410226586A CN103996508A CN 103996508 A CN103996508 A CN 103996508A CN 201410226586 A CN201410226586 A CN 201410226586A CN 103996508 A CN103996508 A CN 103996508A
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- instrument transformer
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- sealing plate
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- transformer seat
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Abstract
The invention discloses a mutual inductor with a waterproof casing and aims at solving the technical problem that an existing conventional current transformer cannot be applied to a damp or soggy environment and other severe environments for a long period of time due to poor waterproof performance. The specific technical scheme is that the mutual inductor with the waterproof casing comprises a first mutual inductor seat, a second mutual inductor seat, two semi-circular magnet cores wound with enameled coils, two concave sealing boards, two convex sealing boards, two sealing rings and fastening bolts. Two concave sealing boards, two convex sealing boards and two sealing rings form two sealing units. Each sealing unit comprises a concave sealing board, a convex sealing board and a sealing ring. The first mutual inductor seat and the second mutual inductor seat are identical in structure, of symmetrical structures and provided with magnet core installing grooves. The end face of the first mutual inductor seat is symmetrically provided with two sealing board installing 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 high-tension cable and detect the instrument transformer with water proof type shell with electric current.
Background technology
Along with the develop rapidly of China's large-and-medium size cities construction 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.High-tension cable with its take up an area less, lay convenience, personal safety guarantee, power supply reliability is high, maintenance workload is few etc., and advantage is 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, adopt Traditional Man to patrol and examine that the mode of maintenance is time-consuming, effort, and cannot fully understand the real-time status of cable, so modes of the online detection of many employings at present, 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 that is applied to this occasion in industry all adopts retractable structure, i.e. 2 semicircular instrument transformers, on-the-spot simple installation forms a closed structure, there is no waterproof sealing structure, can not prolonged application in the adverse circumstances such as humidity or immersion, limited the application of this class 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 humidity or immersion.
For solving the problems of the technologies described above, design philosophy of the present invention is: by injection mo(u)lding, form transformer casing, with rust-proof type holding screw, connects and fixing transformer casing, form the structure of Fast Installation, joint close interface adopts sealing ring unit to seal.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, be wound around two semicircle magnetic cores of enameled wire loop, two recessed sealing plates, two protruding sealing plates, two sealing ring and fastening bolts;
Described two recessed sealing plates, two protruding sealing plates and two sealing rings form two sealing units; Sealing unit comprise a recessed sealing plate, protruding sealing plate and a sealing ring; Sealing ring is arranged in the groove on recessed sealing plate, in the groove on the recessed sealing plate of the corresponding insertion of projection on protruding sealing plate;
The first instrument transformer seat is identical with the second instrument transformer holder structure and be symmetrical structure; On the first instrument transformer seat and the second instrument transformer seat, be equipped with magnetic core mounting groove; On the end face of the first instrument transformer seat, be arranged with two sealing plate mounting grooves; The second instrument transformer seat is also provided with two sealing plate mounting grooves on the position corresponding with the first instrument transformer seat; The end face of the first instrument transformer seat becomes the transformer casing of circular ring type after installing with respect to combination with the end face of the second instrument transformer seat; After the first instrument transformer seat and the combination of the second instrument transformer seat, the magnetic core mounting groove of the magnetic core mounting groove of the first instrument transformer seat and the second instrument transformer seat forms the circular recess of a sealing; Two sealing plate mounting grooves on two sealing plate mounting grooves on the first instrument transformer seat end face and the second instrument transformer seat end face are corresponding forms two for the sealing unit mounting groove of sealing unit is installed;
Wherein, described the first instrument transformer seat is provided with identical with magnetic core mounting groove for the cross-drilled hole of fastening bolt is installed;
The circular rings magnetic core in two semicircle magnetic core besieged cities that is wound around enameled wire loop is sealed and is arranged in aforementioned circle groove by epoxy sealing glue;
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 the first instrument transformer seat end face, an installation be recessed sealing plate, another installation be protruding sealing plate; On described the second instrument transformer seat with on the first instrument transformer seat, install recessed sealing plate what install in the corresponding sealing plate mounting groove of sealing plate mounting groove is protruding sealing plate; On the second instrument transformer seat with on the first instrument transformer seat, install protruding sealing plate what install in the corresponding sealing plate mounting groove of sealing plate mounting groove is recessed sealing plate.
Further, described the 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 is mainly to coordinate 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 the first instrument transformer seat and the second instrument transformer seat are all one-body molded.
Further, two of described winding enameled wire loop semicircle magnetic cores are sealed with the first instrument transformer seat and the second instrument transformer seat and are combined into an integral body by epoxy sealing glue.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 sealing that two semicircle magnetic cores and transformer casing are sealed to an integral body, and it can arrive good waterproof sealing.
Instrument transformer of the present invention, in use, by forming the first instrument transformer seat of transformer casing and the second instrument transformer seat, open and be stuck on cable under test, after by rust-proof type fastening bolt, the first instrument transformer seat and the second instrument transformer seat are coupled together, form an integral body.
The enameled wire loop that is 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, has formed 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; Contact site, magnetic core cross section is used sealing ring and sealing plate male and fomale(M&F) fitted seal; Antirust holding screw closely links together 2 semicircle instrument transformer housings.By these measures, can guarantee that instrument transformer, in moist, even long-term reliable use in the environment of immersion, has good on-the-spot application.
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 protruding 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 content of the present invention is become apparent more, below in conjunction with accompanying drawing 1-Fig. 2 and embodiment, be further described.
In order to make object of the present invention, technical scheme and advantage clearer, 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, is not intended to limit the present invention.
With an instrument transformer for water proof type shell, comprise the first instrument transformer seat 2, the second instrument transformer seat 7, be wound around the semicircle magnetic core of two of enameled wire loop 6, the protruding sealing plate of two recessed sealing plates 3, two 5, two sealing rings 4 and fastening bolts 1;
Described two recessed sealing plates 3, two protruding sealing plates 5 and two sealing rings 4 form two sealing units; Sealing unit comprises a recessed sealing plate 3, protruding sealing plate 5 and a sealing ring 4; Sealing ring 4 is arranged in the groove 10 on recessed sealing plate 3, in the corresponding groove 10 inserting on recessed sealing plate 3 of projection 11 on protruding sealing plate 5;
The first instrument transformer seat 2 is identical with the second instrument transformer seat 7 structures and be symmetrical structure; On the first instrument transformer seat 2 and the second instrument transformer seat 7, be equipped with magnetic core mounting groove 9; On the end face of the first instrument transformer seat 2, be arranged with two sealing plate mounting grooves 8; Described the second instrument transformer seat 7 is also provided with two sealing plate mounting grooves 8 on the position corresponding with the first instrument transformer seat 2; The end face of the first instrument transformer seat 2 becomes the transformer casing of circular ring type after installing with respect to combination with the end face of the second instrument transformer seat 7; After described the first instrument transformer seat 2 and the second instrument transformer seat 7 combinations, the magnetic core mounting groove of the magnetic core mounting groove of the first instrument transformer seat 2 and the second instrument transformer seat 7 forms the circular recess of a sealing; Two sealing plate mounting grooves 8 on described the first instrument transformer seat 2 end faces and two sealing plate mounting grooves on the second instrument transformer seat 7 end faces 8 are corresponding forms two for the sealing unit mounting groove of sealing unit is installed;
Wherein, described the first instrument transformer seat 2 is provided with identical with magnetic core mounting groove 9 for the cross-drilled hole 12 of fastening bolt 1 is installed;
Two semicircle magnetic core 6 circular rings magnetic cores in besieged city that are wound around enameled wire loop are sealed and are arranged in aforementioned circle groove by epoxy sealing glue; 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 the first instrument transformer seat 2 end faces, an installation be recessed sealing plate 3, another installation be protruding sealing plate 5; The sealing plate mounting groove 8 interior installations that the sealing plate mounting groove 8 with recessed sealing plate 3 is installed on the first instrument transformer seat 2 on described the second instrument transformer seat 7 is corresponding be protruding sealing plate 5; The sealing plate mounting groove 8 interior installations that the sealing plate mounting groove 8 with protruding sealing plate 5 is installed on the first instrument transformer seat 2 on the second instrument transformer seat 7 is corresponding be recessed sealing plate 3.
The concrete installation process of the present embodiment is:
The first step, assembling transformer casing: first sealing ring 4 is filled in the groove 10 of recessed sealing plate 3, then the projection of protruding sealing plate 5 11 is inserted in the groove 10 of recessed sealing plate 3, now projection 11 just in time withstands sealing ring 4, forms sealing unit; To two interior 1 recessed sealing plate 3 and protruding sealing plates 5 of being inserted with respectively of sealing plate mounting groove 8 in the first instrument transformer seat 2, the sealing plate mounting groove 8 interior installations that the sealing plate mounting groove 8 with protruding sealing plate 5 is installed on the first instrument transformer seat 2 on the second instrument transformer seat 7 is corresponding be recessed sealing plate 3.When the first instrument transformer seat 2 and the second instrument transformer seat 7 docking assembling, protruding sealing plate 5 on corresponding the second instrument transformer seat 7 of recessed sealing plate 3 on the first instrument transformer seat 2, recessed sealing plate 3 on corresponding the second instrument transformer seat 7 of protruding sealing plate 5 on the first instrument transformer seat 2, after this step completes, integral transformer shell has assembled.Between the joint close interface of this transformer casing, adopt sealing unit to seal, its water resistance is better.
Second step, installs fastening bolt 1: fastening bolt 1 is packed in the cross-drilled hole 12 on the first instrument transformer seat 2.The effect of the fastening bolt 1 in the present invention is the instrument transformer cable being wrapped on magnetic core for drawing.
The 3rd step according to specification requirement index, is wound around enameled wire loop, and instrument transformer cable is drawn from the wire hole of fastening bolt 1 on two semicircle magnetic cores 6.
The 4th step, installs magnetic core: two semicircle magnetic cores 6 that are wound around enameled wire loop are contained in respectively in the magnetic core mounting groove 9 on the first instrument transformer seat 2 and the second instrument transformer seat 7, and magnetic core 6 is rear with epoxy sealing glue, transformer casing and magnetic core is poured into an integrated entity in installation.
Instrument transformer of the present invention, in use, by forming the first instrument transformer seat 2 of transformer casing and the second instrument transformer seat 7, open and be stuck on cable under test, 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 integral body.
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 requirement of the present invention.
Part that the present invention does not relate to all same as the prior art or employing prior art is realized.
Claims (5)
1. the instrument transformer with water proof type shell, it is characterized in that, comprise two semicircle magnetic cores (6), two recessed sealing plates (3), two protruding sealing plates (5), two sealing rings (4) and the fastening bolt (1) of the first instrument transformer seat (2), the second instrument transformer seat (7), winding enameled wire loop;
Described two recessed sealing plates (3), two protruding sealing plates (5) and two sealing rings (4) form two sealing units; Described sealing unit comprises a recessed sealing plate (3), a protruding sealing plate (5) and a sealing ring (4); Sealing ring (4) is arranged in the groove (10) on recessed sealing plate (3), in the corresponding groove (10) inserting on recessed sealing plate (3) of projection (11) on protruding sealing plate (5);
Described the first instrument transformer seat (2) is identical with the second instrument transformer seat (7) structure and be symmetrical structure; On the first instrument transformer seat (2) and the second instrument transformer seat (7), be equipped with magnetic core mounting groove (9); On the end face of the first instrument transformer seat (2), be arranged with two sealing plate mounting grooves (8); Described the second instrument transformer seat (7) is also provided with two sealing plate mounting grooves (8) on the position corresponding with the first instrument transformer seat (2); The end face of the first instrument transformer seat (2) becomes the transformer casing of circular ring type after installing with respect to combination with the end face of the second instrument transformer seat (7); After described the first instrument transformer seat (2) combines with the second instrument transformer seat (7), the magnetic core mounting groove of the magnetic core mounting groove of the first instrument transformer seat (2) and the second instrument transformer seat (7) forms the circular recess of a sealing; Two sealing plate mounting grooves (8) on described the first instrument transformer seat (2) end face and two the sealing plate mounting grooves (8) on the second instrument transformer seat (7) end face are corresponding forms two for the sealing unit mounting groove of sealing unit is installed;
Wherein, described the first instrument transformer seat (2) is provided with identical with magnetic core mounting groove (9) for the cross-drilled hole (12) of fastening bolt (1) is installed;
The circular rings magnetic core in two semicircle magnetic cores (6) besieged city that is wound around enameled wire loop is sealed and is arranged in aforementioned circle groove by epoxy sealing glue;
Fastening bolt (1) is arranged in the cross-drilled hole (11) 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 the first instrument transformer seat (2) end face, an installation be recessed sealing plate (3), another installation be protruding sealing plate (5); What in the sealing plate mounting groove (8) corresponding with the upper sealing plate mounting groove (8) that recessed sealing plate (3) is installed of the first instrument transformer seat (2) on described the second instrument transformer seat (7), install is protruding sealing plate (5); What in the sealing plate mounting groove (8) corresponding with the upper sealing plate mounting groove (8) that protruding sealing plate (5) is installed of the first instrument transformer seat (2) on the second instrument transformer seat (7), install is recessed sealing plate (3).
2. the instrument transformer with water proof type shell as claimed in claim 1, is characterized in that: described the first instrument transformer seat (2) and the second instrument transformer seat (7) are semicircle.
3. the instrument transformer with water proof type shell as claimed in claim 1, is characterized in that: described sealing unit is one-body molded.
4. the instrument transformer with water proof type shell as claimed in claim 1, is characterized in that: described the first instrument transformer seat (2) and the second instrument transformer seat (7) are all one-body molded.
5. the instrument transformer with water proof type shell as claimed in claim 1, is characterized in that: two semicircle magnetic cores (6) of described winding enameled wire loop are sealed with the first instrument transformer seat (2) and the second instrument transformer seat (7) and are combined into an integral body by epoxy sealing glue.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103996508A true CN103996508A (en) | 2014-08-20 |
| CN103996508B CN103996508B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410226586.3A Active CN103996508B (en) | 2014-05-26 | 2014-05-26 | A kind of instrument transformer with water proof type shell |
Country Status (1)
| Country | Link |
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| CN (1) | CN103996508B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609299A (en) * | 2016-03-11 | 2016-05-25 | 吴世植 | Waterproof detachable current transformer |
| CN105605223A (en) * | 2016-02-25 | 2016-05-25 | 国家电网公司 | Waterproof rubber device of open type CT power pickup device |
| CN108231385A (en) * | 2018-03-22 | 2018-06-29 | 国家海洋技术中心 | The ocean inductively underwater magnet ring of data transmission |
| 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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09213551A (en) * | 1996-01-29 | 1997-08-15 | Toko Denki Kk | Current transformer |
| CN201667273U (en) * | 2009-11-27 | 2010-12-08 | 厦门安达兴电气有限公司 | Structure of 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 |
| CN103456477A (en) * | 2013-08-29 | 2013-12-18 | 宁波恒力达科技有限公司 | Outdoor low-pressure opening and closing type combined mutual inductor |
| 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 |
-
2014
- 2014-05-26 CN CN201410226586.3A patent/CN103996508B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09213551A (en) * | 1996-01-29 | 1997-08-15 | Toko Denki Kk | Current transformer |
| CN201667273U (en) * | 2009-11-27 | 2010-12-08 | 厦门安达兴电气有限公司 | Structure of 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 |
| CN103456477A (en) * | 2013-08-29 | 2013-12-18 | 宁波恒力达科技有限公司 | Outdoor low-pressure opening and closing type combined mutual inductor |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605223A (en) * | 2016-02-25 | 2016-05-25 | 国家电网公司 | Waterproof rubber device of open type CT power pickup device |
| CN105609299A (en) * | 2016-03-11 | 2016-05-25 | 吴世植 | Waterproof detachable current transformer |
| CN108231385A (en) * | 2018-03-22 | 2018-06-29 | 国家海洋技术中心 | The ocean inductively underwater magnet ring of data transmission |
| CN108231385B (en) * | 2018-03-22 | 2024-05-03 | 国家海洋技术中心 | Ocean inductively coupled data transmission underwater magnetic ring |
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| Publication number | Publication date |
|---|---|
| CN103996508B (en) | 2016-04-13 |
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