CN203746653U - Novel current mutual inductor - Google Patents

Novel current mutual inductor Download PDF

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Publication number
CN203746653U
CN203746653U CN201420094777.4U CN201420094777U CN203746653U CN 203746653 U CN203746653 U CN 203746653U CN 201420094777 U CN201420094777 U CN 201420094777U CN 203746653 U CN203746653 U CN 203746653U
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CN
China
Prior art keywords
mutual inductor
instrument transformer
winding
secondary winding
neck
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
Application number
CN201420094777.4U
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Chinese (zh)
Inventor
景贵东
张才丽
侯耀文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sky And Water Chang Kai Instrument Transformer Manufacturing Co Ltd
Original Assignee
Sky And Water Chang Kai Instrument Transformer Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sky And Water Chang Kai Instrument Transformer Manufacturing Co Ltd filed Critical Sky And Water Chang Kai Instrument Transformer Manufacturing Co Ltd
Priority to CN201420094777.4U priority Critical patent/CN203746653U/en
Application granted granted Critical
Publication of CN203746653U publication Critical patent/CN203746653U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a novel current mutual inductor which comprises a mutual inductor body. The mutual inductor body comprises a mutual inductor main body and a mutual inductor neck. An iron-core coil is installed inside the mutual inductor main body. A shielding layer is arranged on the outer side of the iron-core coil. A secondary winding and a primary winding are wound around the iron-core coil. The primary winding provides a rated current ranging from 50 A to 2000 A. The secondary winding provides a switching current ranging from 1 A to 5 A. The primary winding is connected with a primary winding wiring terminal through a copper sheet penetrating through the mutual inductor neck, wherein the primary winding wiring terminal is arranged on the mutual inductor neck. The secondary winding is connected with a secondary winding wiring terminal through a wire, wherein the secondary winding wiring terminal is arranged on the mutual inductor main body. A mutual inductor flange plate is arranged at the lower end of the mutual inductor neck. A plurality of installation holes are formed in the mutual inductor flange plate. An insert is arranged at the bottom of the mutual inductor main body. The insert, the iron-core coil, the shielding layer, the primary winding and the secondary winding are cast inside the mutual inductor body through epoxy resin mixed glue. The novel current mutual inductor has the advantages of being simple in structure, safe and convenient to use.

Description

A kind of novel current transformer
Technical field
The utility model relates to instrument transformer technical field, more particularly, and particularly a kind of novel current transformer.
Background technology
Current transformer is according to electromagnetic induction principle, to carry out the parts of current conversion, is widely used in electric power system.Current transformer is comprised of iron core-closed and winding conventionally, and winding comprises first side winding and secondary side winding, and wherein first side winding is serially connected in primary circuit, and secondary side winding is serially connected in load circuit.Current transformer can roughly be divided into Verification of Measuring Current Transformer, protective current transformer, according to the function of different windings, gets energy Current Transformer etc.Because current transformer is to measure the strength member of electric current, electric energy or relaying protection in electric power system switch cubicle; in the situation that increasing along with power supply capacity; quality requirement to current transformer is also more and more higher; therefore, be necessary to design a kind of current transformer simple in structure, safe and easy to use.
Utility model content
The purpose of this utility model is to provide a kind of novel current transformer simple in structure, safe and easy to use.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of novel current transformer, comprise instrument transformer body, described instrument transformer body comprises instrument transformer body and instrument transformer neck, in described instrument transformer body, ironcore choke is installed, the outside of described ironcore choke is also provided with screen, on described ironcore choke, be full of secondary winding and a winding, a described winding provides the rated current of 50-2000A, described secondary winding provides the switching current of 1-5A, a described winding is connected with a winding connection terminal that is arranged on instrument transformer neck by the copper sheet through instrument transformer neck, described secondary winding is connected with the secondary winding binding post that is arranged on instrument transformer body by wire, lower end at described instrument transformer neck is also provided with instrument transformer ring flange, on described instrument transformer ring flange, be also provided with several installing holes, bottom at described instrument transformer body is also provided with inserts, and described inserts, ironcore choke, screen, winding and secondary winding are all cast in the inside of instrument transformer body by epoxy resin mixed glue.
According to a preferred embodiment of the present utility model: in described instrument transformer body, ironcore choke fixed mount is also installed, described ironcore choke fixed mount is provided with fixed mount groove, and described ironcore choke is fixed on described fixed mount groove.
According to a preferred embodiment of the present utility model: a described winding connection terminal is provided with wiring hole, and the quantity of a described winding connection terminal is two, and the quantity of described secondary winding binding post is eight.
Compared with prior art, the beneficial effects of the utility model are: the utility model is arranged to instrument transformer body the mode of neck and body portion, by neck, connect external high-voltage line, by body portion, be connected with instrument, have advantages of simple in structure, use easy-to-connect and safety.
Accompanying drawing explanation
Fig. 1 is the Facad structure figure of novel current transformer of the present utility model.
Fig. 2 is the construction profile of novel current transformer of the present utility model.
Fig. 3 is the winding diagram of ironcore choke in novel current transformer of the present utility model.
Description of reference numerals: 1, instrument transformer body, 2, epoxy resin mixed glue, 3, inserts, 4, instrument transformer neck, 5, instrument transformer body, 6, instrument transformer ring flange, 7, winding connection terminals, 8, secondary winding binding post, 9, ironcore choke, 10, ironcore choke fixed mount, 11, fixed mount groove, 12, secondary winding, 13, windings.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Consult shown in Fig. 1~Fig. 3, the utility model provides a kind of novel current transformer, comprise instrument transformer body 1, described instrument transformer body 1 comprises instrument transformer body 5 and instrument transformer neck 4, in described instrument transformer body 5, ironcore choke 9 is installed, the outside of described ironcore choke 9 is also provided with screen, on described ironcore choke 9, be full of secondary winding 12 and a winding 13, a described winding 13 provides the rated current of 50-2000A, described secondary winding 12 provides the switching current of 1-5A, a described winding 13 is connected with a winding connection terminal 7 that is arranged on instrument transformer neck 4 by the copper sheet through instrument transformer neck 4, described secondary winding 12 is connected with the secondary winding binding post 8 that is arranged on instrument transformer body 5 by wire, lower end at described instrument transformer neck 4 is also provided with instrument transformer ring flange 6, on described instrument transformer ring flange 6, be also provided with several installing holes, bottom at described instrument transformer body 5 is also provided with inserts 3, and described inserts 3, ironcore choke 9, screen, winding 13 and secondary winding 12 are all cast in the inside of instrument transformer body 1 by epoxy resin mixed glue 2.
In the utility model, in described instrument transformer body 5, ironcore choke fixed mount 10 is also installed, described ironcore choke fixed mount 10 is provided with fixed mount groove 11, described ironcore choke 9 is fixed on described fixed mount groove 11, by the setting of fixed mount groove 11, greatly facilitate the stability of installation and the cast of ironcore choke 9, what the shape of fixed mount groove 11 wherein was generally used is U-shaped groove or v-depression or W connected in star.
In the utility model, a described winding connection terminal 7 is provided with wiring hole, the quantity of a described winding connection terminal 7 is two, the quantity of described secondary winding binding post 8 is eight, when wiring, can optionally use a plurality of secondary winding binding posts 8 according to the instrument connecting and the size of electric current.
The utility model is arranged to instrument transformer body 1 mode of instrument transformer neck 4 and instrument transformer body 5, by instrument transformer neck 4, connect external high-voltage line, by instrument transformer body 5, be connected with instrument, simple in structure, easy to use, also facilitated instrument transformer is used in the higher occasion of height above sea level, as 1000m left and right.
In the utility model, a winding 13 provides the rated current of 50-2000A, described secondary winding 12 provides the switching current of 1-5A, the form of its combination comprises following: a winding 13 provides the electric current of 50A, 75A, 100A, 150A, 200A, 300A, 400A, 500A, 600A, 800A, 1000A, 1200A, 1500A, 2000A, and secondary winding 12 provides the switching current of 1A or 5A.
At instrument transformer of the present utility model, install, should note following some: 1, need to guarantee indoor 25 ℃ of+40 ℃~﹣ of ambient temperature, 2, installation site need to not affect material or the explosive substance of instrument transformer insulation, and installation site can not occur serious vibration or jolt.
Above-described embodiment is preferably execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.

Claims (3)

1. a novel current transformer, comprise instrument transformer body (1), it is characterized in that: described instrument transformer body (1) comprises instrument transformer body (5) and instrument transformer neck (4), ironcore choke (9) is installed in described instrument transformer body (5), the outside of described ironcore choke (9) is also provided with screen, on described ironcore choke (9), be full of secondary winding (12) and a winding (13), a described winding (13) provides the rated current of 50-2000A, described secondary winding (12) provides the switching current of 1-5A, a described winding (13) is connected with a winding connection terminal (7) that is arranged on instrument transformer neck (4) by the copper sheet through instrument transformer neck (4), described secondary winding (12) is connected with the secondary winding binding post (8) that is arranged on instrument transformer body (5) by wire, in the lower end of described instrument transformer neck (4), be also provided with instrument transformer ring flange (6), on described instrument transformer ring flange (6), be also provided with several installing holes, in the bottom of described instrument transformer body (5), be also provided with inserts (3), and described inserts (3), ironcore choke (9), screen, a winding (13) and secondary winding (12) are all cast in the inside of instrument transformer body (1) by epoxy resin mixed glue (2).
2. novel current transformer according to claim 1, it is characterized in that: ironcore choke fixed mount (10) is also installed in described instrument transformer body (5), described ironcore choke fixed mount (10) is provided with fixed mount groove (11), and described ironcore choke (9) is fixed on described fixed mount groove (11).
3. novel current transformer according to claim 1, it is characterized in that: a described winding connection terminal (7) is provided with wiring hole, the quantity of a described winding connection terminal (7) is two, and the quantity of described secondary winding binding post (8) is eight.
CN201420094777.4U 2014-03-03 2014-03-03 Novel current mutual inductor Active CN203746653U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420094777.4U CN203746653U (en) 2014-03-03 2014-03-03 Novel current mutual inductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420094777.4U CN203746653U (en) 2014-03-03 2014-03-03 Novel current mutual inductor

Publications (1)

Publication Number Publication Date
CN203746653U true CN203746653U (en) 2014-07-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420094777.4U Active CN203746653U (en) 2014-03-03 2014-03-03 Novel current mutual inductor

Country Status (1)

Country Link
CN (1) CN203746653U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105914023A (en) * 2016-05-18 2016-08-31 广西西变变电设备有限公司 Transformer for outdoor high-voltage vacuum circuit breaker and assembly method of transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105914023A (en) * 2016-05-18 2016-08-31 广西西变变电设备有限公司 Transformer for outdoor high-voltage vacuum circuit breaker and assembly method of transformer
CN105914023B (en) * 2016-05-18 2017-09-26 广西西变变电设备有限公司 A kind of outdoor high-voltage vacuum breaker transformer and its assemble method

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