CN207068622U - A kind of indoor column support type current transformer for metering - Google Patents
A kind of indoor column support type current transformer for metering Download PDFInfo
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- CN207068622U CN207068622U CN201720976320.XU CN201720976320U CN207068622U CN 207068622 U CN207068622 U CN 207068622U CN 201720976320 U CN201720976320 U CN 201720976320U CN 207068622 U CN207068622 U CN 207068622U
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Abstract
Power system high-tension measurement equipment is the utility model is related to, specifically a kind of indoor column support type current transformer for metering.Including iron core, first winding, secondary winding, base and insulator, wherein iron core, first winding and secondary winding are packaged in insulator, secondary winding is wound on iron core, first winding passes through secondary winding, two primary connection terminals of first winding by insulator Base top contact and be bending structure, the secondary wiring terminals of secondary winding are drawn by the bottom of insulator, and insulator is arranged on base, and insulator is the integral structure using poured with epoxy resin.The utility model has the advantages that small volume, flexible for installation, stable performance, high mechanical strength.
Description
Technical field
Power system high-tension measurement equipment is the utility model is related to, specifically a kind of indoor column support type metering electricity consumption
Current transformer.
Background technology
Full-closed current transformer is that electric current, electric energy or the equipment of relay protection are measured in power system switch cabinet, and it is pacified
Holding position is mainly in the main bus-bar room of switch cubicle, and mounting means majority is using the forms of side dress or formal dress, at present power system
It is big volume to be present in the Full-closed current transformer that miniature switch cubicle uses, and surface creepage is apart from small, and gradation for surface pollution is low, no-load voltage ratio
Single, the shortcomings of capacity is low, easy stealing, properties of product extend with usage time, and its external insulation performance declines in various degree,
And capacity and no-load voltage ratio can not meet the needs of growing power system, turn into the hidden of equipment safety operation in power system
Suffer from, perplex power system maintainer all the time, turn into and compel in power system Full-closed current transformer upgrading and development
Cut and solve the problems, such as
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of indoor column support type current transformer for metering,
Existing electric energy metrical transformer structure is cumbersome, volume is big to solve, and surface creepage is apart from small, and gradation for surface pollution is low, and insulation is unreliable
And not easy care the shortcomings that.
To achieve these goals, the utility model uses following technical scheme：
A kind of indoor column support type current transformer for metering, including iron core, first winding, secondary winding, base and insulation
Body, wherein iron core, first winding and secondary winding are packaged in insulator, and the secondary winding is wound in the iron core of circular ring type
On, the first winding passes through the secondary winding, and two primary connection terminals of the first winding are by the insulator
Base top contact and be bending structure, the secondary wiring terminals of the secondary winding are drawn by the bottom of the insulator, described
Insulator is arranged on base.
The insulator is the integral structure using poured with epoxy resin.
The top of the insulator is provided with cylinder table, and the outer surface of the cylinder table is provided with multiple full skirts along short transverse,
The primary connection terminal is embedded in the cylinder table.
The primary connection terminal is the flat terminal plate of bending structure, and the flat terminal plate is provided with fastening bolt through circle
Hole.
The insulator is square structure, is provided with inclined-plane at the Liang Ge angles of its side, the secondary wiring terminals are located therein
On one inclined-plane, the opposite side of the insulator is provided with boss, and the cross section of the boss is trapezium structure.
The lower section of the secondary wiring terminals is provided with secondary connection seat, and secondary connect is covered with the outside of the secondary wiring terminals
Irdome, the secondary connection cover are connected with the secondary connection seat.
The secondary connection cover uses transparent material, and the secondary connection cover passes through secondary lead sealing with the secondary connection seat
Mode connects for screw.
The secondary connection seat is structure as a whole with the insulator.
The secondary winding is supported by secondary support.
The base is slab construction, which is provided with the U-shaped hole for installation, the U-shaped hole position is in the secondary connection
The lower section of terminal.
The advantages of the utility model and beneficial effect are：
It is 1. the utility model small volume, flexible for installation.The utility model optimizing structure design, structure is compacter, two
Primary connection terminal shape is the terminal plate with circular hole for stretching out pour mass and bending, and is effectively ensured in main bus-bar room and mother
Line discharges into capable electric and mechanical crimp into and out of line, flexibly can be installed in switch cabinet, makes as electric current metering and relay protection
With.
2. the utility model insulation is stable, creep age distance is big.The utility model is poured and integral using epoxide resin vacuum
Structure, insulation is reliable and stable, and the uniform multiple full skirts of pour mass primary connection terminal surrounded surface, effectively increase surface creepage away from
From improving gradation for surface pollution.
3. the utility model measuring accuracy is high, capacity is big, can do polytropic ratio, measuring accuracy can reach 0.2S levels, effectively
The capacity of the accuracy that guarantee product measures in the case where wide load and load change greatly, gauging of products and protected level is big,
User's use is substantially met, measure winding can make the form of multiple no-load voltage ratio, fully meet power system increase-volume in future needs.
4. the anti-electricity-theft transparence of the utility model.The utility model secondary wiring terminals, which are located at made of transparent material, to be covered
In the secondary terminal box of plate sealing, the actual conditions of secondary connection can be conveniently observed directly, secondary terminal box, which has, carries lead
Function is sealed, avoids switching secondary line and causes stealing electricity phenomenon.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the present utility model；
Fig. 2 is external structure schematic diagram of the present utility model；
Fig. 3 is Fig. 2 left view；
Fig. 4 is Fig. 2 top view.
In figure：1 is iron core, and 2 be first winding, and 3 be secondary winding, and 4 be primary connection terminal, and 5 be secondary connection seat, 6
It is insulator for base, 7,8 be secondary wiring terminals, and 9 be secondary connection cover, and 10 be secondary lead sealing screw, and 11 be secondary support,
12 be cylinder table, and 13 be boss, and 14 be inclined-plane, and P1 is the first primary connection terminal, and P2 is the second primary connection terminal, 1S1,
1S2 is the first secondary wiring terminals, and 2S1,2S2 are the second secondary wiring terminals.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in detail example.
As Figure 1-4, a kind of indoor column support type current transformer for metering provided by the utility model, including iron core 1,
First winding 2, secondary winding 3, base 6 and insulator 7, wherein iron core 1, first winding 2 and secondary winding 3 are packaged in insulator
In 7, secondary winding 3 is wound on the iron core 1 of circular ring type, and first winding 2 passes through secondary winding 3, and two of first winding 2 are once
Binding post 4 by insulator 7 Base top contact and be bending structure, facilitate wiring.The secondary wiring terminals 8 of secondary winding 3
Drawn by the bottom of insulator 7, insulator 7 is arranged on base 6.
Insulator 7 is the integral structure using poured with epoxy resin.The top of insulator 7 is provided with cylinder table 12, cylinder
The outer surface of platform 12 is provided with multiple full skirts along short transverse, effectively increases surface creepage distance, improves gradation for surface pollution.Once connect
Line terminals 4 are embedded in cylinder table 12, and primary connection terminal 4 is the flat terminal plate of bending structure, and the curved terminal plate is provided with
Circular hole.In use, wiring bus-row and mutual inductor interstar connection row overlap, fastener screw bolt and nut, ensure easily with inlet-outlet line
One time HV Terminal is attached.
Insulator 7 is square structure, is provided with inclined-plane 14 at the Liang Ge angles of its side, secondary wiring terminals 8 are located in one of
On inclined-plane 14, installing space is saved, and with reliable insulation；The opposite side of insulator 7 is provided with boss 13, boss 13 it is transversal
Face is trapezium structure, and the structure increases the adaptation space of first winding 2, while effectively increase surface creepage distance, improves dirt
Dirty grade.
Further, the lower section of secondary wiring terminals 8 is provided with secondary connection seat 5, and the outside of secondary wiring terminals 8 is covered with two
Secondary separate terminal enclosure 9, secondary connection cover 9 are connected with secondary connection seat 5.Secondary connection seat 5 is structure as a whole with insulator 7, it is secondary around
Group 3 is supported by secondary support 11.
Secondary connection cover 9 uses transparent material, and secondary connection cover 9 is connected with secondary connection seat 5 by secondary lead sealing screw 10
Connect.The actual conditions of secondary connection can be conveniently observed directly by secondary connection cover 9, secondary connection cover 9, which has, carries lead sealing
Function, avoid switching secondary line and cause stealing electricity phenomenon.
Base 6 is slab construction, which is provided with the U-shaped hole for installation, the U-shaped hole position is in secondary wiring terminals 8
Lower section, convenient installation, and the earth stud of base 6 facilitates secondary ground connection below secondary wiring terminals 8.
Technique manufacturing process of the present utility model is：
Secondary winding 3 is equably wound on the iron core 1 of circular ring type, and pair helps wrapping insulating materials；Utilize special tool
Tool coiling first winding 2 is simultaneously insulated and buffers wrapping, and first winding 2 passes through secondary winding 3, and formation has primary connection end
Sub 4, the coil device body of first winding 2, secondary wiring terminals 8 and secondary winding 3；Secondary winding 3 is fixed using secondary support 11
On mould, first winding 2 is fixed on mould using primary connection terminal 4, is poured after adjusting distance with epoxide resin vacuum
Note solidifies and turns into an once integral structure for binding post 4 and secondary connection seat 5；The end of primary connection terminal 4
It is fixed on primary connection terminal 4 with connector during use for bending shape；The outside of primary connection terminal 4 is
The cylinder table form of vertical direction, guarantee have stronger mechanical electric intensity；Envelope puts the secondary connection seat of secondary wiring terminals 8
5 be the plateau form of cuboid, the integral structure formed with insulator 7 using poured with epoxy resin, can be straight during using installation
Connect and carry out accurate interface with low-voltage terminal case.
In summary, indoor column support type current transformer for metering provided by the utility model, using epoxide resin vacuum
Pour into a mould the special dry-type current transformer of the small volume formed, flexible for installation, stable performance, the indoor metering of high mechanical strength.
Embodiment of the present utility model is the foregoing is only, is not intended to limit the scope of protection of the utility model.It is all
Made within spirit of the present utility model and principle any modification, equivalent substitution and improvements, extension etc., are all contained in this reality
With in new protection domain.
Claims (10)
1. a kind of indoor column support type current transformer for metering, it is characterised in that including iron core (1), first winding (2), secondary
Winding (3), base (6) and insulator (7), wherein iron core (1), first winding (2) and secondary winding (3) are packaged in insulator
(7) in, the secondary winding (3) is wound on the iron core (1) of circular ring type, and the first winding (2) passes through the secondary winding
(3), two primary connection terminals (4) of the first winding (2) by the insulator (7) Base top contact and for bending
Structure, the secondary wiring terminals (8) of the secondary winding (3) are drawn by the bottom of the insulator (7), the insulator (7)
On base (6).
2. indoor column support type current transformer for metering according to claim 1, it is characterised in that the insulator (7)
For using the integral structure of poured with epoxy resin.
3. indoor column support type current transformer for metering according to claim 2, it is characterised in that the insulator (7)
Top be provided with cylinder table (12), the outer surface of the cylinder table (12) is provided with multiple full skirts along short transverse, described once to connect
Line terminals (4) are embedded in the cylinder table (12).
4. indoor column support type current transformer for metering according to claim 3, it is characterised in that the primary connection end
Sub (4) are the flat terminal plate of bending structure, and the flat terminal plate passes through circular hole provided with fastening bolt.
5. indoor column support type current transformer for metering according to claim 2, it is characterised in that the insulator (7)
For square structure, inclined-plane (14) are provided with the Liang Ge angles of its side, the secondary wiring terminals (8) are located in one of inclined-plane (14)
On, the opposite side of the insulator (7) is provided with boss (13), and the cross section of the boss (13) is trapezium structure.
6. indoor column support type current transformer for metering according to claim 2, it is characterised in that the secondary connection end
The lower section of sub (8) is provided with secondary connection seat (5), and secondary connection cover (9) is covered with the outside of the secondary wiring terminals (8), described
Secondary connection cover (9) is connected with the secondary connection seat (5).
7. indoor column support type current transformer for metering according to claim 6, it is characterised in that the secondary connection cover
(9) transparent material is used, the secondary connection cover (9) is connected with the secondary connection seat (5) by secondary lead sealing screw (10).
8. indoor column support type current transformer for metering according to claim 6, it is characterised in that the secondary connection seat
(5) it is structure as a whole with the insulator (7).
9. indoor column support type current transformer for metering according to claim 2, it is characterised in that the secondary winding
(3) supported by secondary support (11).
10. indoor column support type current transformer for metering according to claim 1, it is characterised in that the base (6) is
Slab construction, the U-shaped hole for installation is which is provided with, the U-shaped hole position is in the lower section of the secondary wiring terminals (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720976320.XU CN207068622U (en) | 2017-08-07 | 2017-08-07 | A kind of indoor column support type current transformer for metering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720976320.XU CN207068622U (en) | 2017-08-07 | 2017-08-07 | A kind of indoor column support type current transformer for metering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207068622U true CN207068622U (en) | 2018-03-02 |
Family
ID=61520021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720976320.XU Active CN207068622U (en) | 2017-08-07 | 2017-08-07 | A kind of indoor column support type current transformer for metering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207068622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793742A (en) * | 2021-08-03 | 2021-12-14 | 河南平高通用电气有限公司 | Strut type current transformer and switch cabinet |
-
2017
- 2017-08-07 CN CN201720976320.XU patent/CN207068622U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793742A (en) * | 2021-08-03 | 2021-12-14 | 河南平高通用电气有限公司 | Strut type current transformer and switch cabinet |
| CN113793742B (en) * | 2021-08-03 | 2024-04-02 | 河南平高通用电气有限公司 | Pillar type current transformer and switch cabinet |
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