CN105914019A - 10-KV epoxy cast dry-type transformer - Google Patents
10-KV epoxy cast dry-type transformer Download PDFInfo
- Publication number
- CN105914019A CN105914019A CN201610365645.4A CN201610365645A CN105914019A CN 105914019 A CN105914019 A CN 105914019A CN 201610365645 A CN201610365645 A CN 201610365645A CN 105914019 A CN105914019 A CN 105914019A
- Authority
- CN
- China
- Prior art keywords
- low
- voltage coil
- insulating cylinder
- epoxy cast
- iron core
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
- H01F27/325—Coil bobbins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
Disclosed is a 10-KV epoxy cast dry-type transformer. The 10-KV epoxy cast dry-type transformer comprises an iron core formed by stacking a plurality of silicon steel sheets. The iron core is coaxially provided with a high-voltage coil and a low-voltage coil. The low-voltage coil is located on the inner side of the high-voltage coil. An insulation cylinder is arranged between the high-voltage coil and the low-voltage coil. An insulation cylinder is arranged between the low-voltage coil and the iron core. Each insulation cylinder is formed by curling and overlapping composite polyester film plates with the thickness larger than 1.5 mm. The overlapped ends of the insulation cylinders are coated with special glue for gluing within the range of 60 mm. The 10-KV epoxy cast dry-type transformer is simple in structure and convenient to manufacture, the air flue distance and the overall size are effectively reduced, meanwhile, noise is lowered, the cooling condition is improved, and particularly it is ensured that test power frequency withstand voltage high-to-low/low-to-ground discharge is generated.
Description
Technical field
The present invention relates to dry-type transformer and make field.
Background technology
Its electromagnetic principle of dry-type transformer is just the same with tradition oil-filled transformer. but on insulation system, both then have huge difference. at present in 10KV epoxy cast dry transformer manufacture process, when electromagnetism intensity in the air of air channel exceedes certain value, it is necessary for being designed with insulating barrier between high-tension coil and low-voltage coil and between low-voltage coil and iron core, existing insulating barrier makes complexity, cost of manufacture is higher, haves much room for improvement.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of simple in construction, it is easy to make, effectively reduce air channel distance and reduce machine volume. simultaneously work as reducing Zao Yin and improve radiating condition, particularly ensure that high over the ground the discharge 10KV epoxy cast dry transformer that produce low to Di of test industrial frequency withstand voltage.
For realizing the object of the invention, it is provided that techniques below scheme: 10KV epoxy cast dry transformer, the iron core built up including multiple stalloys, described iron core is coaxially disposed high-tension coil and low-voltage coil；Described low-voltage coil is positioned at inside high-tension coil, it is characterised in that be provided with insulating cylinder between high-tension coil and low-voltage coil, is provided with insulating cylinder between low-voltage coil and iron core, and described insulating cylinder is the compound mylar reel that thickness is more than 1.5mm.
As preferably, insulating cylinder is formed by being combined mylar coiled sheet song overlap joint, coated by special glue bond in the range of insulating cylinder bond end 60mm.
As preferably, special gelatin is propanoic acid olefine resin.
A kind of insulating cylinder manufacture method of 10KV epoxy cast dry transformer, it is characterized in that being more than thickness the compound mylar plate of 1.5mm, on the mould garden side face of steel, one layer is enclosed according to different specifications and models, make with tightener tension that compound mylar is smooth with punching block is close to, putting into electric oven together with steel mold and be warming up to 130 degree of insulations 3 hours, natural cooling becomes.
The method have the benefit that present configuration is simple, it is simple to make, effectively reduce air channel distance and reduce machine volume. simultaneously work as reducing Zao Yin and improve radiating condition, particularly ensure that high over the ground the discharge generation low to Di of test industrial frequency withstand voltage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Embodiment 1:10KV epoxy cast dry transformer, the iron core 1 built up including multiple stalloys, described iron core 1 is coaxially disposed high-tension coil 2 and low-voltage coil 3；Described low-voltage coil 3 is positioned at inside high-tension coil 2, air channel 4 is constituted between high-tension coil 2 and low-voltage coil 3, high-tension coil 2 inner ring is provided with insulating cylinder 5, on low-voltage coil 4, set is provided with insulating cylinder 5, being provided with insulating cylinder 5 between low-voltage coil 3 and iron core 1, air channel 4 is provided centrally with insulating cylinder 5, and air channel 4 is separated into two, the compound mylar coiled sheet song overlap joint that described insulating cylinder 5 is more than 1.5mm by thickness forms, coated by special glue bond in the range of insulating cylinder 5 bond end 60mm.Special gelatin is propanoic acid olefine resin.
Embodiment 2: the insulating cylinder manufacture method of a kind of 10KV epoxy cast dry transformer, by the thickness compound mylar plate more than 1.5mm, on the mould garden side face of steel, one layer is enclosed according to different specifications and models, make with tightener tension that compound mylar is smooth with punching block is close to, putting into electric oven together with steel mold and be warming up to 130 degree of insulations 3 hours, natural cooling becomes.
By the every test of finished product, industrial frequency withstand voltage drawn game high-volume can meet every electric property of its product, in reality is produced in batches, compound mylar greatly facilitates the manufacturing (see installation diagram), makes flexible overall economic efficiency the most notable.
| Insulating cylinder material | Transformator is pressure kv | Insulating cylinder is pressure kv | Office high-volume pc |
| Laminated film | 35kv/min | 70kv/min | Less than 5pc |
Claims (4)
1.10KV epoxy cast dry transformer, the iron core built up including multiple stalloys, described iron core is coaxially disposed high-tension coil and low-voltage coil；Described low-voltage coil is positioned at inside high-tension coil, it is characterised in that be provided with insulating cylinder between high-tension coil and low-voltage coil, is provided with insulating cylinder between low-voltage coil and iron core, and described insulating cylinder is the compound mylar reel that thickness is more than 1.5mm.
10KV epoxy cast dry transformer the most according to claim 1, it is characterised in that insulating cylinder is formed by being combined mylar coiled sheet song overlap joint, coated by special glue bond in the range of insulating cylinder bond end 60mm.
10KV epoxy cast dry transformer the most according to claim 1, it is characterised in that extraordinary glue is propanoic acid olefine resin.
4. the insulating cylinder manufacture method of a 10KV epoxy cast dry transformer as claimed in claim 1 or 2, it is characterized in that being more than thickness the compound mylar plate of 1.5mm, on the mould garden side face of steel, one layer is enclosed according to different specifications and models, make with tightener tension that compound mylar is smooth with punching block is close to, putting into electric oven together with steel mold and be warming up to 130 degree of insulations 3 hours, natural cooling becomes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610365645.4A CN105914019A (en) | 2016-05-30 | 2016-05-30 | 10-KV epoxy cast dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610365645.4A CN105914019A (en) | 2016-05-30 | 2016-05-30 | 10-KV epoxy cast dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105914019A true CN105914019A (en) | 2016-08-31 |
Family
ID=56742500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610365645.4A Pending CN105914019A (en) | 2016-05-30 | 2016-05-30 | 10-KV epoxy cast dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105914019A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155742A (en) * | 1996-01-22 | 1997-07-30 | 山东省金曼克电气股份有限公司 | Dry transformer of fire-proof epoxy resin |
| CN2572526Y (en) * | 2002-09-28 | 2003-09-10 | 常州华迪特种变压器有限公司 | Dry type transformer |
| CN201629213U (en) * | 2010-04-15 | 2010-11-10 | 黄顺国 | Insulating shield cylinder |
| CN202268231U (en) * | 2011-10-26 | 2012-06-06 | 上海一电变压器有限公司 | Coil structure for improving voltage resistance level of dry-type transformer |
| CN202275706U (en) * | 2011-10-12 | 2012-06-13 | 南京大全变压器有限公司 | Long-round insulation cylinder of transformer |
| CN102651277A (en) * | 2012-06-05 | 2012-08-29 | 江苏中容科技有限公司 | Preloading method of high-voltage and low-voltage insulation tube of three-dimensional rolling iron core dry type transformer |
| CN202487379U (en) * | 2012-03-28 | 2012-10-10 | 江苏中容科技有限公司 | Long and circular insulation cylinder between high voltage coil and low voltage coil for dry type transformer |
| CN102760562A (en) * | 2012-08-08 | 2012-10-31 | 江苏中容科技有限公司 | Three-dimensional rolling iron core dry type transformer insulation tube between high voltage and low voltage |
| CN204558201U (en) * | 2015-04-14 | 2015-08-12 | 海鸿电气有限公司 | 110kV and above three dimensional wound core open dry-type transformer |
| CN105513751A (en) * | 2016-01-19 | 2016-04-20 | 聊城昌佳变电设备有限公司 | Dry type transformer |
-
2016
- 2016-05-30 CN CN201610365645.4A patent/CN105914019A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155742A (en) * | 1996-01-22 | 1997-07-30 | 山东省金曼克电气股份有限公司 | Dry transformer of fire-proof epoxy resin |
| CN2572526Y (en) * | 2002-09-28 | 2003-09-10 | 常州华迪特种变压器有限公司 | Dry type transformer |
| CN201629213U (en) * | 2010-04-15 | 2010-11-10 | 黄顺国 | Insulating shield cylinder |
| CN202275706U (en) * | 2011-10-12 | 2012-06-13 | 南京大全变压器有限公司 | Long-round insulation cylinder of transformer |
| CN202268231U (en) * | 2011-10-26 | 2012-06-06 | 上海一电变压器有限公司 | Coil structure for improving voltage resistance level of dry-type transformer |
| CN202487379U (en) * | 2012-03-28 | 2012-10-10 | 江苏中容科技有限公司 | Long and circular insulation cylinder between high voltage coil and low voltage coil for dry type transformer |
| CN102651277A (en) * | 2012-06-05 | 2012-08-29 | 江苏中容科技有限公司 | Preloading method of high-voltage and low-voltage insulation tube of three-dimensional rolling iron core dry type transformer |
| CN102760562A (en) * | 2012-08-08 | 2012-10-31 | 江苏中容科技有限公司 | Three-dimensional rolling iron core dry type transformer insulation tube between high voltage and low voltage |
| CN204558201U (en) * | 2015-04-14 | 2015-08-12 | 海鸿电气有限公司 | 110kV and above three dimensional wound core open dry-type transformer |
| CN105513751A (en) * | 2016-01-19 | 2016-04-20 | 聊城昌佳变电设备有限公司 | Dry type transformer |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160831 |