CN202332565U - Combined mutual inductor - Google Patents
Combined mutual inductor Download PDFInfo
- Publication number
- CN202332565U CN202332565U CN2011204841718U CN201120484171U CN202332565U CN 202332565 U CN202332565 U CN 202332565U CN 2011204841718 U CN2011204841718 U CN 2011204841718U CN 201120484171 U CN201120484171 U CN 201120484171U CN 202332565 U CN202332565 U CN 202332565U
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- CN
- China
- Prior art keywords
- mutual inductor
- transformer
- casing
- voltage
- voltage transformer
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to the technical field and particularly relates to a combined mutual inductor. The combined mutual inductor comprises a box body, wherein three wiring terminals are arranged above the box body; a current mutual inductor and a voltage mutual inductor are arranged in the box body; a insulating medium is filled among the box body, the current mutual inductor and the voltage mutual inductor; a secondary wiring panel is arranged on the lateral face of the lower part of the box body; a primary terminal of the current mutual inductor is connected with the wiring terminals; a primary end of the voltage mutual inductor is connected between the two wiring terminals; and a secondary end of the current mutual inductor and the secondary end of the current mutual inductor are respectively connected with the secondary wiring panel. The combined mutual inductor combines the current mutual inductor and the voltage mutual inductor, so that the equipment cost is reduced and the occupied space is reduced.
Description
Technical field
The utility model relates to the electric energy metrical technical field, relates in particular to a kind of combined instrument transformer.
Background technology
The electric energy metrical cabinet is a kind of power equipment that is used for carrying out between electric company and the large user electric energy metrical, through making Current Transformer, voltage measuring transformer electric current, voltage.In existing electric energy metrical cabinet, adopt current transformer and voltage transformer independently to use mostly, be connected with electrical network respectively and measure, this not only causes metering cabinet internal wiring terminal number amount more, and it is big to take up room, and equipment cost is high, safeguards inconvenient.
Summary of the invention
The purpose of the utility model is exactly to the deficiency of prior art existence a kind of combined instrument transformer to be provided, and its scientific structure is simple, and current transformer, voltage transformer are combined, and reduces equipment cost, reduces to take up room.
To achieve these goals; The technical scheme that the utility model adopts is: a kind of combined instrument transformer, comprise casing, and said casing top is provided with three binding posts; Be provided with current transformer, voltage transformer in the said casing; Be filled with dielectric between said casing, current transformer, the voltage transformer, said lower box side is provided with the secondary connection panel, and the once end of said current transformer is connected with binding post; Once terminating between two binding posts of said voltage transformer, the secondary terminals of said current transformer, the secondary terminals of voltage transformer are connected with the secondary connection panel respectively.
Said three binding posts below is respectively arranged with a wiring axle, and said binding post is electrically connected said voltage transformer through the wiring axle of correspondence respectively.
Said wiring shaft extension is gone into said casing, and said wiring axle is provided with depressed part, and said wiring axle can rotate in casing.
The secondary winding of said current transformer is provided with centre tap.
Said voltage transformer has two secondary winding.
Said bottom half is provided with second patch panel, and said second patch panel is connected with the secondary terminals of said current transformer, the secondary terminals of voltage transformer.
Said bottom half is provided with holder.
The utility model beneficial effect is: the utility model comprises casing; Said casing top is provided with three binding posts; Be provided with current transformer, voltage transformer in the said casing, be filled with dielectric between said casing, current transformer, the voltage transformer, said lower box side is provided with the secondary connection panel; The once end of said current transformer is connected with binding post; Once terminating between two binding posts of said voltage transformer, the secondary terminals of said current transformer, the secondary terminals of voltage transformer are connected with the secondary connection panel respectively, and the utility model is combined current transformer, voltage transformer; Reduced equipment cost, reduced to take up room.
Description of drawings
Fig. 1 is the front view of the combined instrument transformer of the utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the upward view of Fig. 1.
In Fig. 1 ~ Fig. 4, include:
1---casing 2---binding post
21---A phase connection terminal 22---B phase connection terminal
23---C phase connection terminal 3---secondary connection panel
4---wiring axle 41---depressed part
5---second patch panel 6---holder.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
embodiment one.
A kind of combined instrument transformer of the utility model; As shown in Figure 1, it comprises casing 1, and said casing 1 top is provided with three binding posts 2; Be respectively A phase connection terminal 21, B phase connection terminal 22, C phase connection terminal 23; Its respectively with the A of three phase mains mutually, B phase, C phase conductor connect, wherein B phase connection terminal 22 is a column, A phase connection terminal 21, C phase connection terminal 23 are provided with end of incoming cables, leading-out terminal.Be provided with two current transformer CT1, CT2 and two voltage transformer pts 1, PT2 in the said casing 1; Be filled with dielectric between said casing 1, current transformer, the voltage transformer; Said casing 1 lower side is provided with secondary connection panel 3; Secondary connection panel 3 is connected with electric energy meter; The once end of current transformer CT1 is connected with A phase connection terminal 21, and the once end of current transformer CT2 is connected with C phase connection terminal 23, once the terminating between A phase connection terminal 21, the B phase connection terminal 22 of voltage transformer pt 1; Once terminating between B phase connection terminal 22, the C phase connection terminal 23 of voltage transformer pt 2, the secondary terminals of the secondary terminals of two current transformers, two voltage transformers is connected with secondary connection panel 3 respectively.The utility model is through being combined in current transformer, voltage transformer in the same casing 1, reduced the cost of production, installation, and reduced taking up room of equipment.
Like Fig. 2, shown in Figure 3, three binding post 2 belows are respectively arranged with a wiring axle 4, and said binding post 2 is electrically connected said voltage transformer through corresponding wiring axle 4 respectively.Compare in the prior art, binding post 2 directly is connected with voltage transformer through lead, and wiring axle 4 wirings of present embodiment are convenient, and production technology is simple, and further, conveniently voltage transformer is adjusted.
Further, the secondary winding of said current transformer is provided with centre tap, and the user can select different no-load voltage ratios according to the size of electric current, thereby guarantees that electric energy metrical is accurate.Corresponding, secondary connection panel 3 is provided with aS1, aS2, aS3, cS1, cS2, cS3 joint, and wherein aS1, aS2, aS3 are corresponding with current transformer CT1, and cS1, cS2, cS3 are corresponding with current transformer CT2.
Further, said voltage transformer has two secondary winding, and the user can select different no-load voltage ratios according to the size of voltage, thereby guarantees that electric energy metrical is accurate.
Further, as shown in Figure 4, said casing 1 bottom is provided with second patch panel 5, and said second patch panel 5 is connected with the secondary terminals of said current transformer, voltage transformer.The secondary connection panel 3 or second patch panel 5 are provided with a, b, 1a, 1b, 2a, the 2b joint corresponding with voltage transformer pt 1, also are provided with b, c, 1b, 1c, 2b, the 2c joint corresponding with voltage transformer pt 2.
Like Fig. 1, shown in Figure 4, said casing 1 bottom is provided with holder 6, and the combined instrument transformer of present embodiment is fixedly connected metering cabinet through holder 6.
embodiment two.
Compare embodiment one; The difference of present embodiment is: said wiring axle 4 stretches into said casing 1; Whether said wiring axle 4 is provided with depressed part 41, and said wiring axle 4 can rotate in casing 1, can control this wiring axle 4 through rotation wiring axle 4 and be connected with voltage transformer.
The other technologies characteristic of present embodiment is identical with embodiment one, repeats no more at this.
Should be noted that at last; Above embodiment is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection range, although with reference to preferred embodiment the utility model has been done explanation at length, those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement the technical scheme of the utility model, and not break away from the essence and the scope of the utility model technical scheme.
Claims (7)
1. combined instrument transformer; Comprise casing (1); Said casing (1) top is provided with three binding posts (2), and it is characterized in that: said casing is provided with current transformer, voltage transformer in (1), is filled with dielectric between said casing (1), current transformer, the voltage transformer; Said casing (1) lower side is provided with secondary connection panel (3); The once end of said current transformer is connected with binding post (2), once the terminating between two binding posts (2) of said voltage transformer, and the secondary terminals of said current transformer, the secondary terminals of voltage transformer are connected with secondary connection panel (3) respectively.
2. combined instrument transformer according to claim 1; It is characterized in that: said three binding posts (2) below is respectively arranged with a wiring axle (4), and said binding post (2) is electrically connected said voltage transformer through corresponding wiring axle (4) respectively.
3. combined instrument transformer according to claim 2 is characterized in that: said wiring axle (4) stretches into said casing (1), and said wiring axle (4) is provided with depressed part (41), and said wiring axle (4) can rotate in casing (1).
4. combined instrument transformer according to claim 1 is characterized in that: the secondary winding of said current transformer is provided with centre tap.
5. combined instrument transformer according to claim 1 is characterized in that: said voltage transformer has two secondary winding.
6. combined instrument transformer according to claim 5 is characterized in that: said casing (1) bottom is provided with second patch panel (5), and said second patch panel (5) is connected with the secondary terminals of said current transformer, the secondary terminals of voltage transformer.
7. combined instrument transformer according to claim 1 is characterized in that: said casing (1) bottom is provided with holder (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204841718U CN202332565U (en) | 2011-11-29 | 2011-11-29 | Combined mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204841718U CN202332565U (en) | 2011-11-29 | 2011-11-29 | Combined mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202332565U true CN202332565U (en) | 2012-07-11 |
Family
ID=46444537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204841718U Withdrawn - After Issue CN202332565U (en) | 2011-11-29 | 2011-11-29 | Combined mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364641A (en) * | 2011-11-29 | 2012-02-29 | 东莞市开关厂有限公司 | Combined type mutual inductor |
-
2011
- 2011-11-29 CN CN2011204841718U patent/CN202332565U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364641A (en) * | 2011-11-29 | 2012-02-29 | 东莞市开关厂有限公司 | Combined type mutual inductor |
| CN102364641B (en) * | 2011-11-29 | 2013-08-14 | 东莞市开关厂有限公司 | Combined type mutual inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120711 Effective date of abandoning: 20130814 |
|
| RGAV | Abandon patent right to avoid regrant |