CN208256447U - A kind of current transformer housing - Google Patents
A kind of current transformer housing Download PDFInfo
- Publication number
- CN208256447U CN208256447U CN201820823433.0U CN201820823433U CN208256447U CN 208256447 U CN208256447 U CN 208256447U CN 201820823433 U CN201820823433 U CN 201820823433U CN 208256447 U CN208256447 U CN 208256447U
- Authority
- CN
- China
- Prior art keywords
- current transformer
- housing
- hole
- ontology
- fixed
- 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 kind of current transformer housings, the current transformer housing includes housing ontology and is fixed on the inside of housing ontology, at least two fixed structures to extend internally, the fixed structure is equipped at least one through-hole, the axis of through-hole and the axis of housing ontology are parallel to each other, the mounting hole for installing plugging plate and/or shielding line is constituted, at least one described through-hole constitutes the location hole for the core pulling location fit with mutual-inductor mould simultaneously.The problem of electric property difference present in existing current transformer of the end with plugging plate has been well solved using the housing of this structure, it is very useful.
Description
Technical field
The utility model relates to current transformer fields, more particularly to a kind of current transformer housing.
Background technique
At present there are two types of the mounting means of contact cabinet median generatrix bushing transformer: one is the metal structures being fixed in cabinet
On frame, another kind is fixed on the side plate of switchgear.In order to meet metering, measurement and the requirement of defencive function, in mutual inductance
Multiple windings can be tied on device, along with the requirement of user's large capacity, it is larger to directly result in mutual inductor shape, in this way using will
When bus sheath tubular type mutual inductor is fixed on this mounting means in switch cabinet side panel, understand that some is exposed outside switchgear, such as
Fruit part not exposed to mutual inductor carries out closure processing, will make easily the wearing from mutual inductor end of the micronic dust in external environment
Enter at round, to accumulate in mutual inductor product surface or switchgear, and then form one layer of dirt, when encounter mist, dew,
When the weather such as drizzle, conductance increases, so that decreasing insulating, so that the normal operation to power equipment causes certain peace
Full hidden danger.
On the other hand, current transformer also has shielding construction, and in bushing transformer production process, shielding is tied
Fixed requirement of the structure in mold is stringenter, and the fixed bad generation that will lead to partial discharge phenomenon influences current transformer
Electric property.
For the closure processing of current transformer exposed parts, notification number is that the Chinese patent of CN207097649U discloses
A kind of structure, i.e., in the direct aperture in the end of current transformer casing to install plugging plate, although this structure can be realized pair
The effective protection of mutual inductor end exposed parts, but the overall structure of current transformer casing can be destroyed, reduce Current Mutual Inductance
The insulation performance and electric property of device.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of current transformer housings, to solve
The problem of electric property difference existing for existing current transformer of the end with plugging plate.
To achieve the above object, technical solution provided by the utility model is: a kind of current transformer housing, described
Housing includes housing ontology and is fixed on the inside of housing ontology, at least two fixed structures to extend internally,
The fixed structure is equipped at least one through-hole, and the axis of the axis and housing ontology of the through-hole is parallel to each other, constitutes
For installing the mounting hole of plugging plate and/or shielding line, at least one described through-hole simultaneously constitute for mutual-inductor mould
The location hole of core pulling location fit.
The utility model has the beneficial effects that the fixed structure being arranged on the current transformer housing is equipped at least one
Plugging plate can be mounted on when current transformer is installed on the side plate of switchgear with appended claims by a through-hole, the through-hole
On current transformer, Current Mutual Inductance can be installed to for plugging plate by avoiding opening up plugging plate mounting hole in the end of current transformer
On device, so that also avoiding the impurities accumulations such as the micronic dust in environment influences insulation performance on mutual inductor surface；This is logical simultaneously
Housing can also be fixed in the core pulling of current transformer mold by hole by inserting fastener, and housing is being formed
Position is placed in the middle in current transformer afterwards, reaches better shield effectiveness, makes its excellent electric properties and stabilization.
Further, plugging plate is fixed on current transformer in order to facilitate fastener, while also facilitated housing
It is fixed in the core pulling of current transformer mold, limits the through-hole as threaded hole.
Further, in order to make current transformer have good shield effectiveness, keep the field distribution in it more uniform,
It limits the housing ontology and fixed structure is made of metal material.
Further, for the ease of the connection of housing ontology and fixed structure, at the arris for limiting the fixed structure
Whole rounded corners, fixed structure are cambered surface identical with circular diameter in housing ontology with housing ontology junction.
Further, in order to enable housing preferably positions in current transformer, the fixed structure is limited around screen
The axis for covering set ontology is evenly arranged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of housing；
Fig. 2 is the cross-sectional view of housing；
Fig. 3 is the structural schematic diagram of metal fixed block；
Fig. 4 is schematic diagram when housing is applied in mutual inductor；
In figure, 1- housing, 2- high-tension shielding lead, 3- plugging plate, 4- current transformer, 11- housing ontology, 12-
Metal fixed block, 121- shielding line mounting hole, 122- plugging plate mounting hole.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing, but is not limited thereto.
Specific embodiment of the utility model 1, as shown in Figure 1 to Figure 3, which includes by gold
Belong to housing ontology 11 made of material T2 copper sheet, is had on housing ontology 11 using phosphor-copper Welding and be made of T2 copper sheet
Metal fixed block 12, weld is polished after welding, there is it without wedge angle and welding slag.Whole housing 1 has good
Electric action, in field distribution it is uniform, housing ontology 11 with a thickness of 1-3mm, metal fixed block 12 and housing
11 weld of ontology is arc surface identical with circular diameter in housing ontology 11, and whole rounding at the arris of metal fixed block
Angle, welds for convenience and guarantees the intensity of metal fixed block 12, metal fixed block 12 with a thickness of 5-10mm, metal is fixed
The rest part mechanism of block 12 will not make it cause point discharge.Parallel arrangement has plugging plate mounting hole on metal fixed block 12
122 and shielding line mounting hole 121, and the two Kong Douwei threaded holes, convenient for installing for fastener.It is poured in current transformer 4
When injection forming, groove structure is set in core pulling or an independent core pulling above and below current transformer mold, can be efficiently used at this time
122) mounting hole 121(on metal fixed block 12 is fixed on mould core pulling by fastener, enable housing 1 at
The position in current transformer 4 after type is placed in the middle, does not have any deflection situation, so that the shield effectiveness of current transformer 4 reaches
To best.By the shielding line mounting hole 121 on metal fixed block 12, high-voltage shielding line 2 can be easily connected, in housing 1
On due to making its excellent electric properties and stabilization without other redundant structures.
Current transformer 4 after molding in use, if be mounted on the side plate of switchgear, using shielding
Plugging plate mounting hole 122 on set 1, the plugging plate 3 of the purposive suitable buss bar dimensions of selection, such setting avoid
Aperture is carried out on current transformer 4, not destroying the structure of current transformer 4, effective solution current transformer 4 is not changing
To the requirement of creepage distance on the basis of shape size, and the influence to insulation performance；Also reach in the prior art simultaneously
To the requirement that current transformer 4 blocks, the sundries such as micronic dust effectivelying prevent in environment gather from the entrance from round of wearing of mutual inductor
In mutual inductor surface or switchgear, so that mutual inductor decreasing insulating, so that the normal operation to power equipment causes
Some potential safety problems.
The embodiment 2 of the current transformer housing, the difference with above-described embodiment 1 are: the metal fixed block
12 are equipped with 3 in housing ontology 11, and the central angle that two of them metal fixed block is formed is 60 °, another metal
The central angle that firmware is formed with above-mentioned two metal fixed block fastly is respectively 150 °.
The embodiment 3 of the current transformer housing, the difference with above-described embodiment 1 are: the metal fixed block
12 in housing ontology 11 left and right sides be respectively symmetrically equipped with 2, and the circle formed between two metal fixed blocks 12 of every side
Heart angle is 60 °.
Claims (5)
1. a kind of current transformer housing, it is characterised in that: the housing includes housing ontology and is fixed at
On the inside of housing ontology, at least two fixed structures to extend internally, the fixed structure are equipped at least one through-hole, institute
The axis for stating the axis and housing ontology of through-hole is parallel to each other, constitutes the mounting hole for installing plugging plate and/or shielding line,
At least one described through-hole constitutes the location hole for the core pulling location fit with mutual-inductor mould simultaneously.
2. current transformer housing according to claim 1, it is characterised in that: the through-hole is threaded hole.
3. current transformer housing according to claim 1, it is characterised in that: the housing ontology and described solid
Determine structure to be made of metal material.
4. current transformer housing according to claim 1 or 2 or 3, it is characterised in that: the side of the fixed structure
Whole rounded corner at rib, fixed structure are cambered surface identical with circular diameter in housing ontology with housing ontology junction.
5. current transformer housing according to claim 1 or 2 or 3, it is characterised in that: the fixed structure is around screen
The axis for covering set ontology is evenly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823433.0U CN208256447U (en) | 2018-05-30 | 2018-05-30 | A kind of current transformer housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823433.0U CN208256447U (en) | 2018-05-30 | 2018-05-30 | A kind of current transformer housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208256447U true CN208256447U (en) | 2018-12-18 |
Family
ID=64652659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820823433.0U Expired - Fee Related CN208256447U (en) | 2018-05-30 | 2018-05-30 | A kind of current transformer housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208256447U (en) |
-
2018
- 2018-05-30 CN CN201820823433.0U patent/CN208256447U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20181218 |