CN205122361U - Electromagnetic type voltage transformer - Google Patents
Electromagnetic type voltage transformer Download PDFInfo
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- CN205122361U CN205122361U CN201520852300.2U CN201520852300U CN205122361U CN 205122361 U CN205122361 U CN 205122361U CN 201520852300 U CN201520852300 U CN 201520852300U CN 205122361 U CN205122361 U CN 205122361U
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Abstract
The utility model provides an electromagnetic type voltage transformer, includes iron core, primary winding, secondary winding, primary winding coiling circumference outside the skeleton, skeleton set up to the cylinder, adopt the semi conducting material suppression to form, the face is provided with the silica gel strip at the both ends of skeleton. The utility model discloses simple structure is the voltage transformer design that the partial discharge volume is little, the secondary output capacity is big. The skeleton of primary winding use adopts the semi conducting material suppression to take shape, and the resistance is even, the record phenomenon is taken off to the nothing, has improved the partial discharge level of product. The wire of primary winding adopts the many less enameled wires in line footpath, can reduce voltage between layers, reduces the winding external diameter. Secondary winding wire adoption cross -section is the enameled wire of rectangle, has improved the secondary capacity of product. Press the utility model discloses a technology, structure production, the secondary capacity that enables the product is brought up to more than the 10VA. It requires the bulky little needs of voltage transformer secondary load to have satisfied current electric power system.
Description
Technical field
The utility model relates to a kind of voltage transformer.Relate in particular to the electromagnetic potential transformer that a kind of partial discharge quantity is little.
Background technology
Instrument transformer partial discharge not only can produce high-speed ion and directly destroy insulating material surface, and also produce ozone and nitrogen oxide, the former makes insulating material cracking, and the latter is combined the compound generated and corrodes insulating material with air simultaneously.And mixture of epoxy resins has irrecoverability, therefore its partial discharge quantity is subject to the attention of manufacturer and user more, but affects the many factors of partial discharge.As: a winding of prior art adopts insulating cylinder inside and outside wall to be coated with semiconductor varnish as skeleton, and enamelled coating easily comes off and falls into winding inside and cause product to puncture and scrap; Secondary winding wire adopts cross section to be circular enamelled wire, makes the contact of the top-stitching of wire turn and there is space, thus produces the longitudinal leakage flux of winding, waits all class problems.
Summary of the invention
The purpose of this utility model will provide a kind of electromagnetic potential transformer exactly, and it can overcome the above defect existed in prior art.The purpose of this utility model is achieved in that a kind of electromagnetic potential transformer, comprises iron core, winding, a secondary winding, and by epoxy resin mixed glue moulding by casting; It is characterized in that: a winding technique is at skeleton excircle, and described skeleton is set to cylindrical shape, adopt semi-conducting material compacting to form; The both ends of the surface of skeleton are provided with silica gel strip.
The wire of a described winding adopts the enamelled wire that the many wire diameters of more than are less.
The size that the wire radical of a described winding and the size of wire diameter export according to product secondary adjusts.
The wire of described secondary winding adopts cross section to be the enamelled wire of rectangle.
The utility model structure is simple, is the voltage transformer that partial discharge quantity is little, secondary output capacity is large.The skeleton of a winding use adopts semi-conducting material compressing, and resistance evenly, without de-records phenomenon, improves the local discharging level of product.The wire of a winding adopts the enamelled wire that many wire diameters are less, can reduce voltage between layers, reduces winding external diameter.
Secondary winding wire adopts cross section to be the enamelled wire of rectangle, reduces the longitudinal leakage flux of winding, improves the secondary capacity of product.The product of same volume, by technique, the structure of the utility model design, can make the secondary capacity of product bring up to more than 10VA.Meet the needs that current power system requirements Secondary Load of Voltage Transformer large volume is little.
Accompanying drawing illustrates:
Fig. 1 is the utility model structural representation;
1: winding 2: secondary winding 3: epoxy resin mixed glue
4: unshakable in one's determination 5: skeleton 6: silica gel strip.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail;
A kind of electromagnetic potential transformer, comprises 4, winding 1, a secondary winding 2 unshakable in one's determination, and by epoxy resin mixed glue moulding by casting; It is characterized in that: a winding 1 is wound on the excircle of skeleton 5, described skeleton 5 is set to cylindrical shape, adopts semi-conducting material compacting to form; The both ends of the surface of skeleton 5 are provided with silica gel strip 6.
The wire of a described winding 1 adopts the enamelled wire that the many wire diameters of more than are less.
The size that the wire radical of a described winding 1 and the size of wire diameter export according to product secondary adjusts.
The wire of described secondary winding 2 adopts cross section to be the enamelled wire of rectangle.
During concrete enforcement, one time winding skeleton adopts semi-conducting material compressing, can play the effect of skeleton, play again the effect of electric field shielding, and resistance evenly, without de-records phenomenon, thus the non-uniform electric field between improvement winding, secondary winding, improve the local discharging level of product, silica gel strip is set at skeleton two ends, skeleton end corner angle can be made to become round and smooth electrode, play cushioning effect, and can prevent interiors of products from ftractureing.
One time winding conducting wire adopts the enamelled wire that the many wire diameters of more than are less, wire range is Φ 0.08-Φ 0.14mm, the radical of wire and the size of wire diameter adjust according to product secondary output capacity, voltage between layers can be reduced like this, do not need to make layer insulation with multi-layered paper, also without the need to classification coiling, greatly winding external diameter is reduced.
Secondary winding wire adopts cross section to be the enamelled wire of rectangle, can make to be being adjacent to of a face between the wire turn of winding, overcome in prior art and adopt cross section to be the space that the contact of the top-stitching of circular enamelled wire wire turn exists, reduce the longitudinal leakage flux of winding, thus improve the secondary capacity of product.
Claims (4)
1. an electromagnetic potential transformer, comprise iron core (4), winding (1), secondary winding (2), and by epoxy resin mixed glue moulding by casting, it is characterized in that: a winding (1) is wound on the excircle of skeleton (5), described skeleton (5) is set to cylindrical shape, adopts semi-conducting material compacting to form; The both ends of the surface of skeleton (5) are provided with silica gel strip (6).
2. a kind of electromagnetic potential transformer according to claim 1, is characterized in that: the wire of a described winding (1) adopts the many wire diameters of more than to be the enamelled wire of Φ 0.08-Φ 0.14mm.
3. a kind of electromagnetic potential transformer according to claim 2, is characterized in that: the described wire radical of a winding (1) and the size of wire diameter adjust according to product secondary output capacity.
4. a kind of electromagnetic potential transformer according to claim 1, is characterized in that: the wire of described secondary winding (2) adopts cross section to be the enamelled wire of rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852300.2U CN205122361U (en) | 2015-10-30 | 2015-10-30 | Electromagnetic type voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852300.2U CN205122361U (en) | 2015-10-30 | 2015-10-30 | Electromagnetic type voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122361U true CN205122361U (en) | 2016-03-30 |
Family
ID=55577947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520852300.2U Active CN205122361U (en) | 2015-10-30 | 2015-10-30 | Electromagnetic type voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122361U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261462A (en) * | 2015-10-30 | 2016-01-20 | 江苏靖江互感器厂有限公司 | Electromagnetic voltage transformer |
| CN106328359A (en) * | 2016-08-31 | 2017-01-11 | 刘连营 | Primary winding bobbin, production method thereof and voltage transformer manufacturing method |
-
2015
- 2015-10-30 CN CN201520852300.2U patent/CN205122361U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261462A (en) * | 2015-10-30 | 2016-01-20 | 江苏靖江互感器厂有限公司 | Electromagnetic voltage transformer |
| CN106328359A (en) * | 2016-08-31 | 2017-01-11 | 刘连营 | Primary winding bobbin, production method thereof and voltage transformer manufacturing method |
| CN106328359B (en) * | 2016-08-31 | 2019-07-05 | 刘连营 | A kind of first winding skeleton and its production method and voltage transformer production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 214500 No. 23 Laizhen Jiangping Road, Jingjiang West, Taizhou City, Jiangsu Province Patentee after: Jingjiang Jiangsu mutual inductor Limited by Share Ltd Address before: 214500 No. 23 Jiangping Road, Xilaizhen, Jingjiang City, Jiangsu Province, Taizhou City, Jiangsu Province Patentee before: Jiangsu Jingjiang Instrument Transformer Factory Co., Ltd. |