CN203858971U - Zero-phase transformer - Google Patents
Zero-phase transformer Download PDFInfo
- Publication number
- CN203858971U CN203858971U CN201420298498.XU CN201420298498U CN203858971U CN 203858971 U CN203858971 U CN 203858971U CN 201420298498 U CN201420298498 U CN 201420298498U CN 203858971 U CN203858971 U CN 203858971U
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- CN
- China
- Prior art keywords
- pour mass
- zero
- pouring body
- semi
- clip
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a zero-phase transformer. The zero-phase transformer comprises a pouring body and a hoop; the pouring body is circular ring-shaped, and is formed by butting of a semi-circle ring-shaped first pouring body and a semi-circle ring-shaped second pouring body; the first pouring body and the second pouring body comprises semi-circle ring-shaped iron cores, epoxy resin layers wrapping the semi-circle ring-shaped iron cores and plastic housings wrapping the epoxy resin layers respectively; V-shaped grooves are formed in the matching surfaces corresponding to the two ends of the second pouring body of the first pouring body; bosses matched with the V-shaped grooves are arranged on the matching surfaces corresponding to the two ends of the first pouring body of second pouring body; the hoop is mounted on the outer circumferential surfaces of the plastic housings of the first pouring body and the second pouring body in a sleeving manner, and can tighten the first pouring body and the second pouring body into a whole. The zero-phase transformer has the advantages of being convenient to mount, and stable and reliable in work.
Description
Technical field
The utility model relates to a kind of instrument transformer, is specifically related to a kind of zero-sequence transformer.
Background technology
Zero-sequence transformer is used with protective relaying device or Signal cooperation in the time that electric power system produces zero sequence earth current, makes device element action, realizes protection or monitors.Zero-sequence transformer on market has two kinds now, a kind of is the zero-sequence transformer of integral type, this zero-sequence transformer when mounted, as long as zero-sequence transformer is sleeved on cable, when this zero-sequence transformer breaks down need to change time, the joint of cable need to be taken apart, then extract zero-sequence transformer out, the defect that therefore zero-sequence transformer of this integral type existence installation is loaded down with trivial details, maintenance workload is large by one of cable.Another kind is the zero-sequence transformer of openable, although that this zero-sequence transformer is installed is convenient, this zero-sequence transformer is because the contact area of its iron core is little, permeability is lower, thereby causes the less stable of its work.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, and a kind of convenient, reliable zero-sequence transformer of working stability of installing is provided.
For achieving the above object, the utility model adopts a kind of zero-sequence transformer, comprise pour mass and clip, described pour mass is circular, and this pour mass is made up of the first pour mass of a semi-annular shape and the second pour mass docking of a semi-annular shape, the first described pour mass and the second pour mass are by the iron core of semi-annular shape, the plastic casing that is wrapped in the epoxy resin layer on semi-annular shape iron core and be wrapped on epoxy resin layer forms, on the mating surface at described corresponding the second pour mass two ends of the first pour mass, be provided with V-type groove, and be provided with the boss suitable with V-type groove on the mating surface at described corresponding the first pour mass two ends of the second pour mass, described hoop sleeve is contained in the first pour mass, on the outer circumference surface of the plastic casing of the second pour mass, and this clip can by the first pour mass and the second pour mass is fastening be connected as a single entity.
The beneficial effect of said structure be by with clip by the first pour mass of semicircular ring with the second pour mass is fastening is connected as a single entity, the zero-sequence transformer of this structure only need be unclamped clip, just can directly zero-sequence transformer be sleeved on cable, and do not need the joint of cable to take apart, thereby this zero-sequence transformer has installation, safeguard advantage easily, and the first pour mass of this zero-sequence transformer and the connection mating surface of the second pour mass are arranged to V-type, thereby increase first, the contact area of iron core between the second pour mass, improve the permeability of this zero-sequence transformer, and this zero-sequence transformer work is more stable.
Clip place described in the first described pour mass and the plastic casing correspondence of the second pour mass is provided with installing hole and mounting groove, and described clip is arranged in mounting groove through installing hole is fastening.By this setting, compacter, firm thereby clip can be connected the first pour mass of this zero-sequence transformer with the second pour mass, and clip is also difficult for coming off from pour mass.
Brief description of the drawings
Fig. 1 is the utility model embodiment front view.
Fig. 2 is first, second pour mass front view of the utility model.
Fig. 3 is first, second pour mass cut-away view of the utility model.
Fig. 4 is the utility model embodiment left view.
Fig. 5 is that the utility model removes the left view after clip.
Embodiment
As shown in Fig. 1,2,3,4,5, the utility model embodiment is a kind of zero-sequence transformer, comprise pour mass 10 and clip 20, described pour mass 10 is circular, and this pour mass 10 is made up of the first pour mass 11 of a semi-annular shape and the second pour mass 12 docking of a semi-annular shape.As shown in Figure 3, the first described pour mass 11 and the second pour mass 12 by the iron core 101 of semi-annular shape, be wrapped in the epoxy resin layer 102 on semi-annular shape iron core 101 and the plastic casing 103 that is wrapped on epoxy resin layer 102 forms.As shown in Figure 2, on the mating surface at described corresponding the second pour mass 12 two ends of the first pour mass 11, be provided with V-type groove 111, and on the mating surface at described corresponding the first pour mass 11 two ends of the second pour mass 12, be provided with the boss 121 suitable with V-type groove 111, described clip 20 is sleeved on the outer circumference surface of plastic casing 103 of the first pour mass 11, the second pour mass 12.In conjunction with Figure 4 and 5, the first described pour mass 11 and corresponding described clip 20 places of the plastic casing of the second pour mass 12 103 are provided with installing hole 105 and mounting groove 104, and described clip 20 is arranged in mounting groove 104 through installing hole 105 is fastening.By installing hole and mounting groove are set on the outer circumference surface of plastic casing, compacter, firm thereby clip can be connected the first pour mass of this zero-sequence transformer with the second pour mass, and clip is also difficult for coming off from pour mass.And this clip 20 can by the first pour mass 11 and second pour mass 12 be fastening is connected as a single entity.By with clip by the first pour mass of semicircular ring with the second pour mass is fastening is connected as a single entity, the zero-sequence transformer of this structure only need be unclamped clip, just can directly zero-sequence transformer be sleeved on cable, and do not need the joint of cable to take apart, thereby this zero-sequence transformer has installation, safeguard advantage easily, and the first pour mass of this zero-sequence transformer and the connection mating surface of the second pour mass are arranged to V-type, thereby increase first, the contact area of iron core between the second pour mass, improve the permeability of this zero-sequence transformer, thereby this zero-sequence transformer work is more stable.
Claims (2)
1. a zero-sequence transformer, comprise pour mass and clip, described pour mass is circular, and this pour mass is made up of the first pour mass of a semi-annular shape and the second pour mass docking of a semi-annular shape, it is characterized in that: the first described pour mass and the second pour mass are by the iron core of semi-annular shape, the plastic casing that is wrapped in the epoxy resin layer on semi-annular shape iron core and be wrapped on epoxy resin layer forms, on the mating surface at described corresponding the second pour mass two ends of the first pour mass, be provided with V-type groove, and be provided with the boss suitable with V-type groove on the mating surface at described corresponding the first pour mass two ends of the second pour mass, described hoop sleeve is contained in the first pour mass, on the outer circumference surface of the plastic casing of the second pour mass, and this clip can by the first pour mass and the second pour mass is fastening be connected as a single entity.
2. zero-sequence transformer according to claim 1, it is characterized in that: the clip place described in the first described pour mass and the plastic casing correspondence of the second pour mass is provided with mounting groove and installing hole, and described clip is arranged in mounting groove through installing hole is fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298498.XU CN203858971U (en) | 2014-05-24 | 2014-05-24 | Zero-phase transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298498.XU CN203858971U (en) | 2014-05-24 | 2014-05-24 | Zero-phase transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858971U true CN203858971U (en) | 2014-10-01 |
Family
ID=51608813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420298498.XU Expired - Fee Related CN203858971U (en) | 2014-05-24 | 2014-05-24 | Zero-phase transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203858971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676030A (en) * | 2016-01-29 | 2016-06-15 | 杭州海兴电力科技股份有限公司 | Transformer monitoring terminal |
| CN108597827A (en) * | 2018-04-13 | 2018-09-28 | 华建电气有限公司 | V-type face Open Type Electric Current Mutual Inductor and its production technology |
-
2014
- 2014-05-24 CN CN201420298498.XU patent/CN203858971U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676030A (en) * | 2016-01-29 | 2016-06-15 | 杭州海兴电力科技股份有限公司 | Transformer monitoring terminal |
| CN108597827A (en) * | 2018-04-13 | 2018-09-28 | 华建电气有限公司 | V-type face Open Type Electric Current Mutual Inductor and its production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325604 Liushi City, Yueqing province Xinguang Industrial Zone Patentee after: Huajian Electric Applicance Co., Ltd Address before: 325604 Liushi City, Yueqing province Xinguang Industrial Zone Patentee before: Zhejiang Huajian Electric Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20160524 |