CN102496454A - Element for capacitor voltage transformer - Google Patents
Element for capacitor voltage transformer Download PDFInfo
- Publication number
- CN102496454A CN102496454A CN2011103806942A CN201110380694A CN102496454A CN 102496454 A CN102496454 A CN 102496454A CN 2011103806942 A CN2011103806942 A CN 2011103806942A CN 201110380694 A CN201110380694 A CN 201110380694A CN 102496454 A CN102496454 A CN 102496454A
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- lead wire
- dielectric layer
- dielectric layers
- insulating cell
- wire sheets
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Abstract
The invention provides an element for a capacitor voltage transformer. The element comprises pole plates, dielectric layers, insulation liners and lead wire sheets. The pole plates are placed on the dielectric layer, and are winded with the dielectric layer together. When the lead wire sheets are winded by half of loop number, the lead wire sheets are automatically inserted between the pole plates and the dielectric layers, the lead wire sheets extend from the dielectric layers along a direction which is perpendicular to a winding direction, and the other end of the lead wire sheets retracts into the dielectric layers. The insulation liners are provided between the dielectric layers and the lead wire sheets, the insulation liners extend from the dielectric layers at one end where the lead wire sheets extend from the dielectric layers, and the other end of the insulation liners is level with the dielectric layers. According to the invention, the insulation liners are placed between the lead wire sheets and the dielectric layers, the dielectric layers are prevented from being scratched when inserting the lead wire sheets, and problems of unbalanced pressure borne by the dielectric layers and unbalanced field intensity around the lead wire sheets in the element are solved; the insulation liners extend to outside of the element, an insulation distance of two pairs of lead wire sheets is increased, and the two pairs of lead wire sheets are prevented from discharging. The insulation liners also can be taken as an inner liner in the element, thus the element is 'hard', transportation and press mounting of the element are facilitated, and the element is not easy to deform.
Description
Technical field
The present invention relates to a kind of capacitor and use element, particularly a kind of capacitance type potential transformer is used element.
Background technology
Capacitance type potential transformer is made up of capacitor voltage divider and electromagnetic unit, and capacitor voltage divider and coupling capacitor are by the high tension insulator shell, and center in the shell and metal dilator are formed; Center is made up of some element connected in series.Capacitor voltage divider and coupling capacitor major part are elements, and the component structure design is most important, and is related to product quality quality, security reliability.
Traditional component structure comprises pole plate, dielectric layer, insulating cell and lead wire, flattens after reeling together again.Insulating cell is put into when the beginning coiling, only plays the retaining element effect; The two pairs of lead wire are placed on respectively on two pole plates during around half number of turns in element roll, and two pairs of lead wire are relative placements.
There are many hidden danger in said structure: may cause damage to the aluminium foil pole plate during inserting lead 1.; 2. possibly there is burr in the lead wire edge, and weld also possibly exist wedge angle, burr, possibly cause damage to medium when welding simultaneously.3. field intensity skewness around the lead wire of element.4. the saturating machine of element is bad.
Summary of the invention
The invention provides a kind of capacitance type potential transformer and use element, avoid lead wire when inserting, to scratch dielectric layer.
The technical scheme that the present invention adopted is: a kind of capacitance type potential transformer is used element; Comprise pole plate, dielectric layer, insulating cell and lead wire; Said pole plate is placed on the dielectric layer then and reels together, and said lead wire is plugged between pole plate and the dielectric layer when being wound up into half number of turns automatically, and the lead wire edge vertical with coiling direction direction stretch out dielectric layer; The other end contracts to dielectric layer; Said insulating cell is arranged between dielectric layer and the lead wire, and the end that insulating cell stretches out dielectric layer in lead wire stretches out dielectric layer, all contracts to insulating cell or be concordant with insulating cell in lead wire other each ends except that an end that stretches out dielectric layer.
Said insulating cell is slightly larger than the corresponding size of dielectric layer in the direction size vertical with coiling direction, and insulating cell is slightly larger than the corresponding size of lead wire in the size of coiling direction;
The size that said lead wire is stretched out dielectric layer outside and lead wire contract to the size of lead wire inside and equate;
Said insulating cell stretches out the size of dielectric layer is stretched out dielectric layer less than lead wire size;
Said insulating cell is a cable paper;
Said pole plate is an aluminium foil;
Said dielectric layer is a film.
Capacitance type potential transformer of the present invention has the following advantages with element at least: insulating cell of the present invention is placed between lead wire and the dielectric layer; Avoid the lead wire when inserting, to scratch dielectric layer, solved the be stressed problem of field intensity inequality around uneven and the lead wire of element medium layer; Insulating cell protruding element outside increases by two pairs of lead wire insulation distances, prevents two pairs of lead wire discharges; Insulating cell also can be worked as liner in the element, makes element than " firmly ", is convenient to carry and press-fit, and is not yielding.
Description of drawings
Fig. 1 is the structural representation of element of the present invention;
Fig. 2 is the location diagram of component lead sheet of the present invention and liner.
Embodiment
See also illustrated in figures 1 and 2ly, the invention discloses a kind of capacitance type potential transformer and use element, comprise pole plate 1, dielectric layer 3, insulating cell 5 and lead wire 7.Pole plate 1 is placed on the dielectric layer 3 and reels together then, and wherein, the width of pole plate 1 is less than the width of dielectric layer 3; When being wound up into half number of turns, pair of lead wires sheet 7 is plugged on respectively between pole plate 1 and the dielectric layer 3, wherein an end broad ways of lead wire 7 is stretched out dielectric layer 3; The other end does not stretch out dielectric layer 3 as yet, then, insulating cell 5 is placed between lead wire 7 and the dielectric layer 3; Wherein, insulating cell 5 stretches out dielectric layer 3 at an end that exposes lead wire 7, and the other end is concordant with dielectric layer 3; The width of insulating cell 5 is slightly larger than the width of dielectric layer 3; And the size of the direction that insulating cell 5 is vertical with width also is slightly larger than the size of lead wire 7, and lead wire 7 is placed on the insulating cell middle part, all contracts to insulating cell or be concordant with insulating cell in other each ends that is to say lead wire except that an end that stretches out dielectric layer; After having reeled, turn down two pairs of lead wire of stretching out dielectric layer outside respectively to flatten and promptly get element at the dielectric layer upper and lower surface.
Fig. 2 is the position of new-type element lead wire 7 and insulating cell 5; Two pairs of lead wire 7 are inserted between pole plate and the dielectric layer when being wound up into half number of turns respectively; The lead wire length of inserting is that lead wire length is half the, and second half stretches out the dielectric layer outside, and two pairs of lead wire 7 are placed relatively; When placing two pairs of lead wire 7 insulating cell 5 (cable paper, two; Be convenient to the mechanical hand operation; Improved production efficiency) be placed between lead wire 7 and the dielectric layer 3, the end that insulating cell stretches out dielectric layer in lead wire stretches out the dielectric layer outside, and the end that insulating cell does not stretch out dielectric layer in lead wire is concordant with dielectric layer; Greater than the lead wire corresponding size, lead wire 7 is placed in the middle of the insulating cell insulating cell in the size of the direction vertical with width.After having rolled up, turn down two pairs of lead wire of stretching out dielectric layer outside respectively at the dielectric layer upper and lower surface and to flatten.
Insulating cell of the present invention is placed between lead wire 7 and the dielectric layer, avoid lead wire 7 when inserting, to scratch dielectric layer, has solved the be stressed problem of field intensity inequality around uneven and the lead wire of element medium layer; Insulating cell protruding element outside increases by two pairs of lead wire insulation distances, prevents two pairs of lead wire discharges; The insulating cell that increases also can be worked as liner in the element, makes element than " firmly ", is convenient to carry and press-fit, and is not yielding.
The above is merely one embodiment of the present invention; It or not whole or unique execution mode; The conversion of any equivalence that those of ordinary skills take technical scheme of the present invention through reading specification of the present invention is claim of the present invention and contains.
Claims (7)
1. a capacitance type potential transformer is used element; It is characterized in that: comprise pole plate (1), dielectric layer (3), insulating cell (5) and lead wire (7); Said pole plate (1) is placed on the dielectric layer (3) and reels together then; Said lead wire (7) is plugged on when being wound up into half number of turns between pole plate (1) and the dielectric layer (3); And the lead wire edge vertical with coiling direction direction stretch out dielectric layer (3), the other end contracts to dielectric layer, said insulating cell is arranged between dielectric layer and the lead wire; And the end that insulating cell stretches out dielectric layer in lead wire stretches out dielectric layer, all contracts to insulating cell or be concordant with insulating cell in lead wire other each ends except that an end that stretches out dielectric layer.
2. a kind of capacitance type potential transformer as claimed in claim 1 is used element; It is characterized in that: said insulating cell (5) is slightly larger than the corresponding size of dielectric layer in the direction size vertical with coiling direction, and insulating cell is slightly larger than the corresponding size of lead wire in the size of coiling direction.
3. a kind of capacitance type potential transformer as claimed in claim 1 is used element, it is characterized in that: the size that said lead wire is stretched out dielectric layer outside and lead wire contract to the size of lead wire inside and equate.
4. a kind of capacitance type potential transformer as claimed in claim 1 is used element, it is characterized in that: said insulating cell stretches out the size of dielectric layer is stretched out dielectric layer less than lead wire size.
5. use element like any described a kind of capacitance type potential transformer in the claim 1 to 4, it is characterized in that: said insulating cell is a cable paper.
6. use element like any described a kind of capacitance type potential transformer in the claim 1 to 4, it is characterized in that: said pole plate is an aluminium foil.
7. use element like any described a kind of capacitance type potential transformer in the claim 1 to 4, it is characterized in that: said dielectric layer is a film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103806942A CN102496454A (en) | 2011-11-25 | 2011-11-25 | Element for capacitor voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103806942A CN102496454A (en) | 2011-11-25 | 2011-11-25 | Element for capacitor voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102496454A true CN102496454A (en) | 2012-06-13 |
Family
ID=46188266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103806942A Pending CN102496454A (en) | 2011-11-25 | 2011-11-25 | Element for capacitor voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102496454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065794B (en) * | 2012-12-05 | 2015-09-30 | 中国西电电气股份有限公司 | A kind of CVT center packing forming method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645202A (en) * | 1992-07-01 | 1994-02-18 | Far East Eng Kk | Capacitor and its manufacturing method |
| CN101465209A (en) * | 2007-12-20 | 2009-06-24 | Jcc工程株式会社 | Electronic component and production method thereof |
-
2011
- 2011-11-25 CN CN2011103806942A patent/CN102496454A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645202A (en) * | 1992-07-01 | 1994-02-18 | Far East Eng Kk | Capacitor and its manufacturing method |
| CN101465209A (en) * | 2007-12-20 | 2009-06-24 | Jcc工程株式会社 | Electronic component and production method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065794B (en) * | 2012-12-05 | 2015-09-30 | 中国西电电气股份有限公司 | A kind of CVT center packing forming method |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120613 |