CN207116208U - A kind of inside new structure of middle voltage current transformer - Google Patents
A kind of inside new structure of middle voltage current transformer Download PDFInfo
- Publication number
- CN207116208U CN207116208U CN201720646064.8U CN201720646064U CN207116208U CN 207116208 U CN207116208 U CN 207116208U CN 201720646064 U CN201720646064 U CN 201720646064U CN 207116208 U CN207116208 U CN 207116208U
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- winding
- secondary windings
- current transformer
- voltage current
- new structure
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Abstract
The utility model discloses a kind of inside new structure of middle voltage current transformer, it is related to current transformer technical field, including：First winding (2), secondary winding (3) and pour mass (1)；It is characterized in that：The secondary winding (3) is composed in series by two secondary windings；Wherein：Two secondary windings are that vertical direction is set；The upper and lower surface of two secondary windings is respectively positioned on same level；The axis hole of lower end from the two secondary windings upper surfaces of the first winding (2) penetrates, then passed in the lower surface of two secondary windings, the first winding (2) finally passed from the lower surface of two secondary windings is electrically connected to form closure winding.Secondary winding of inside new structure of voltage current transformer is vertical in this, is divided into left and right two parts, and first winding is in the inside of low pressure winding, the problem of avoiding electrion and uneven field strength, while meets the requirement of the high-precision Large Copacity of client.
Description
Technical field
Current transformer technical field is the utility model is related to, it is new more particularly to a kind of inside of middle voltage current transformer
Type structure.
Background technology
The outdoor high-voltage power station type mid-mounted vacuum circuit breaker that existing rated voltage is 40.5kV, rated frequency is 50Hz is special
Current Transformer, is totally-enclosed column support type structure, and poured with epoxy resin is molded.The top of product is arranged in support insulator,
Bottom be arranged on breaker transmission case in, because installing space is small, the height and volume of product are restricted, it is difficult to accomplish compared with
Big accurate limitation ratio, higher load or higher accuracy class, but with the fast development of electricity needs, 35kV transmission ＆ distribution
Electric system is also improving to the technical requirements of current transformer, and original product structure can no longer meet to require.Such as Fig. 1 institutes
Show, the internal structure of voltage current transformer in tradition, secondary winding is horizontal, and first winding is in the outside of low pressure winding, to keep away
Exempt from the pour mass external discharge close to first winding, it is necessary to thicker insulating space, causes actually secondary winding highly small, join
Number can not meet the requirement of high accuracy, Large Copacity.
Utility model content
The technical problems to be solved in the utility model is：A kind of inside new structure of middle voltage current transformer is provided；Should
The secondary winding of the inside new structure of middle voltage current transformer is divided into left and right two parts to be vertical, first winding low pressure around
The inside of group, the problem of avoiding electrion and uneven field strength, while meet the requirement of the high-precision Large Copacity of client.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
A kind of inside new structure of middle voltage current transformer, including：First winding (2), secondary winding (3) and pour
Injection body (1)；It is characterized in that：The secondary winding (3) is composed in series by two secondary windings；Wherein：Two secondary windings are equal
Set for vertical direction；The upper and lower surface of two secondary windings is respectively positioned on same level；The first winding (2)
The axis hole of lower end from two secondary windings upper surfaces penetrates, and is then passed in the lower surface of two secondary windings, finally from two
The first winding (2) that the lower surface of secondary windings passes is electrically connected to form closure winding.
Preferably, the utility model additionally uses following technical scheme：
Further：The pour mass (1) is poured by epoxy resin to be formed.
Further：Two secondary windings are one kind in cylinder or direction structure.
Further：The structure of two secondary windings is identical.
The utility model has the advantages and positive effects of：
By using above-mentioned technical proposal, the secondary winding in the utility model is vertical, is divided into left and right two parts, once
Winding is in the inside of low pressure winding, the problem of avoiding electrion and uneven field strength, while meets the high accuracy of client
The requirement of Large Copacity.In the utility model：First winding, secondary winding are small, save the use of raw material, reduce into
This；High and low pressure winding is symmetrical, and field strength distribution is uniform, and partial discharge quantity is small；Bigger capacity, higher required precision can be met.
Brief description of the drawings
Fig. 1 is the structure chart of the inside new structure of voltage current transformer in tradition；
Fig. 2 is the structure chart of the utility model preferred embodiment；
Wherein：1st, pour mass；2nd, first winding；3rd, secondary winding.
Embodiment
For utility model content, feature and effect of the present utility model can be further appreciated that, following examples are hereby enumerated, and
Accompanying drawing is coordinated to describe in detail as follows：
Referring to Fig. 2, a kind of inside new structure of middle voltage current transformer, including：
First winding 2, secondary winding 3 and pour mass 1；The secondary winding 3 is composed in series by two secondary windings；
Wherein：Two secondary windings are that vertical direction is set；The upper and lower surface of two secondary windings is respectively positioned on same level
Face；The axis hole of lower end from the two secondary windings upper surfaces of the first winding 2 penetrates, then in the following table of two secondary windings
Face passes, and the first winding 2 finally passed from the lower surface of two secondary windings is electrically connected to form closure winding.
In above preferred embodiment：
The pour mass 1 is poured by epoxy resin to be formed.
Two secondary windings are one kind in cylinder or direction structure.
The structure of two secondary windings is identical.
The inside new structure of middle voltage current transformer in this preferred embodiment is positive vertical structure, and secondary winding is being produced
Product bottom, first winding pass through secondary winding, and concentric, and external insulation is molded for poured with epoxy resin.
Fig. 1 is the internal structure of the inside new structure of voltage current transformer in tradition, secondary winding to be horizontal, once around
Group is in the outside of low pressure winding, to avoid pour mass external discharge close to first winding, it is necessary to which thicker insulating space, is caused
Actually secondary winding is highly small, and parameter can not meet the requirement of high accuracy, Large Copacity.
Fig. 2 is the inside new structure internal structure of the middle voltage current transformer in this preferred embodiment, and secondary winding is
It is vertical, be divided into left and right two parts (i.e. two secondary windings), first winding in the inside of low pressure winding, avoid electrion and
The problem of field strength is uneven, while meet the requirement of the high-precision Large Copacity of client.
Embodiment of the present utility model is described in detail above, but the content is only of the present utility model preferable
Embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all made according to present utility model application scope it is equal
Deng change and improvement etc., all should still belong within patent covering scope of the present utility model.
Claims (4)
1. a kind of inside new structure of middle voltage current transformer, including：First winding (2), secondary winding (3) and cast
Body (1)；It is characterized in that：The secondary winding (3) is composed in series by two secondary windings；Wherein：Two secondary windings are
Vertical direction is set；The upper and lower surface of two secondary windings is respectively positioned on same level；Under the first winding (2)
Hold the axis hole from two secondary windings upper surfaces to penetrate, then passed in the lower surface of two secondary windings, finally from two times
The first winding (2) that the lower surface of level winding passes is electrically connected to form closure winding.
2. the inside new structure of middle voltage current transformer according to claim 1, it is characterised in that：The pour mass
(1) poured and formed by epoxy resin.
3. the inside new structure of middle voltage current transformer according to claim 1, it is characterised in that：Two secondary windings
It is one kind in cylinder or direction structure.
4. the inside new structure of middle voltage current transformer according to claim 1, it is characterised in that：Two secondary windings
Structure it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720646064.8U CN207116208U (en) | 2017-06-02 | 2017-06-02 | A kind of inside new structure of middle voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720646064.8U CN207116208U (en) | 2017-06-02 | 2017-06-02 | A kind of inside new structure of middle voltage current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116208U true CN207116208U (en) | 2018-03-16 |
Family
ID=61593921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720646064.8U Expired - Fee Related CN207116208U (en) | 2017-06-02 | 2017-06-02 | A kind of inside new structure of middle voltage current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207116208U (en) |
-
2017
- 2017-06-02 CN CN201720646064.8U patent/CN207116208U/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: 20180316 |