CN201898022U - Magnetic shielding structure of high-capacity transformer - Google Patents
Magnetic shielding structure of high-capacity transformer Download PDFInfo
- Publication number
- CN201898022U CN201898022U CN2010206358510U CN201020635851U CN201898022U CN 201898022 U CN201898022 U CN 201898022U CN 2010206358510 U CN2010206358510 U CN 2010206358510U CN 201020635851 U CN201020635851 U CN 201020635851U CN 201898022 U CN201898022 U CN 201898022U
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- magnetic shielding
- transformer
- shielding part
- shielding structure
- stainless steel
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Abstract
The utility model discloses a magnetic shielding structure of a high-capacity transformer, which is characterized in that the magnetic shielding structure of the high-capacity transformer comprises a magnetic shielding part, an insulating mat, a stainless steel fixing plate, support iron, and an earthing copper stick, wherein the magnetic shielding part is supported on the support iron; the earthing copper stick at the lower end of the magnetic shielding part is connected with a bolt of the support iron; the insulating mat is coated outside the magnetic shielding part, and is integrally fixed by the stainless steel fixing plate. Compared with the prior art, as the magnetic shielding structure is arranged in the inner wall of an oil tank, the vortex caused by flux leakage is reduced, the forming of partial overheating points is avoided, the stray loss of the transformer is reduced, the efficiency of the transformer is improved, and the running conditions of the transformer are improved. The magnetic shielding structure of the high-capacity transformer is convenient to produce, is convenient to mount, and obviously reduces the stray loss of the transformer, moreover, the transformer is simple to test.
Description
Technical field:
The utility model relates to the transformer technology field, specifically is that the high-power transformer of a kind of 110KV of being applicable to level and above electric pressure gets magnet shielding structure.
Background technology:
The high-power transformer of 110KV level and above electric pressure, because its low-tension current is too high, then the leakage flux of lead-in wire generation is very big, and magnetic induction is also very strong, and leakage flux can produce very strong eddy current on steel plate, thereby causes that steel plate has tangible eddy current superheating phenomenon.A kind of way is now also arranged, adopt the steel plate of non-magnet_conductible material to change general steel plate exactly, but its economy, manufacturability etc. are bad.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and a kind of magnet shielding structure that is installed in inner wall of oil tank is provided, thereby reduces the eddy current that leakage field causes, and avoids the formation of local hot spot; Reduce the stray loss of transformer, improve the efficient of transformer, improve the service conditions of transformer.
The utility model is achieved in that the magnet shielding structure of high-power transformer, it is characterized in that: comprise magnetic shielding part, insulation cushion, stainless steel fixed head, iron and ground connection copper rod, described magnetic shielding part is supported on the Zhi Tie, magnetic shielding part low side ground connection copper rod is connected with an iron bolt, and described insulation cushion is coated on outside the described magnetic shielding part and by stainless steel fixed head overall fixed.
Described magnetic shielding part is made of silicon steel sheet and insulating board, and described silicon steel sheet is coated in the insulating board.
Compared with prior art, the utility model is installed in the magnet shielding structure of inner wall of oil tank, thereby reduces the eddy current that leakage field causes, and avoids the formation of local hot spot; Reduce the stray loss of transformer, improve the efficient of transformer, improve the service conditions of transformer.
The utility model is convenient to produce, and is easy for installation, obviously reduced the stray loss of transformer, and transformer test is simple.
Description of drawings:
Concrete structure of the present utility model is provided by its accompanying drawing.
Fig. 1 magnet shielding structure schematic diagram.
Fig. 2 magnetic shielding part (overlooking).
The support of Fig. 3 magnetic shielding part.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, as shown in Figure 1, the utility model magnet shielding structure comprises following several contents: magnetic shielding part 1, insulation cushion 2, stainless steel fixed head 3, an iron 4, ground connection copper rod 5.Magnetic shielding part 1 is cut into strip by 0.35mm silicon steel sheet 11 according to selected size and forms certain thickness bar shaped magnetic screen piece, is convenient to fix in order to reduce noise, and 11 of the silicon steel sheets of bar shaped magnetic screen piece cement with epoxy resin and integral body compresses; The outsourcing insulating board 12 then, and cement with bar shaped magnetic screen piece, and also pressing is in aggregates again, form magnetic shielding part 1, as shown in Figure 2.Magnet shielding structure fixing: on the inwall 6 of oil tank of transformer according to the width of magnetic shielding part, highly weld the stainless steel fixed head 3 of some, and will prop up iron 4 and be welded in bottom, every gap, be used to support magnetic shielding part 1, then bar shaped stainless steel fixed head 3 is beaten into gusset to both sides respectively, damage silicon-steel sheet when preventing that fixed head from bending in addition, between gusset and silicon steel sheet, add insulation cushion 2, beat then, compress.At last, ground connection copper rod 5 is connected with iron 4 a usefulness bolt, makes whole reliable ground, referring to Fig. 3.
Claims (2)
1. the magnet shielding structure of a high-power transformer, it is characterized in that: comprise magnetic shielding part, insulation cushion, stainless steel fixed head, iron and ground connection copper rod, described magnetic shielding part is supported on the Zhi Tie, magnetic shielding part low side ground connection copper rod is connected with an iron bolt, and described insulation cushion is coated on outside the described magnetic shielding part and by stainless steel fixed head overall fixed.
2. the magnet shielding structure of high-power transformer according to claim 1, it is characterized in that: described magnetic shielding part is made of silicon steel sheet and insulating board, and described silicon steel sheet is coated in the insulating board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206358510U CN201898022U (en) | 2010-12-01 | 2010-12-01 | Magnetic shielding structure of high-capacity transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206358510U CN201898022U (en) | 2010-12-01 | 2010-12-01 | Magnetic shielding structure of high-capacity transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201898022U true CN201898022U (en) | 2011-07-13 |
Family
ID=44255923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206358510U Expired - Fee Related CN201898022U (en) | 2010-12-01 | 2010-12-01 | Magnetic shielding structure of high-capacity transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201898022U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050231A (en) * | 2012-12-27 | 2013-04-17 | 吴江市变压器厂有限公司 | Transformer oil tank and installation method thereof |
| CN103578698A (en) * | 2012-12-31 | 2014-02-12 | 大连信达变压器有限公司 | Novel transformer oil tank magnetic shielding mode |
| CN106373762A (en) * | 2016-10-26 | 2017-02-01 | 山东电力设备有限公司 | Transformer capable of controlling magnetic flux leakage |
-
2010
- 2010-12-01 CN CN2010206358510U patent/CN201898022U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050231A (en) * | 2012-12-27 | 2013-04-17 | 吴江市变压器厂有限公司 | Transformer oil tank and installation method thereof |
| CN103578698A (en) * | 2012-12-31 | 2014-02-12 | 大连信达变压器有限公司 | Novel transformer oil tank magnetic shielding mode |
| CN106373762A (en) * | 2016-10-26 | 2017-02-01 | 山东电力设备有限公司 | Transformer capable of controlling magnetic flux leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CLP electric (Nanjing) Special Transformer Co., Ltd. Assignor: CEEG (Jiangsu) Co., Ltd. Contract record no.: 2012320000029 Denomination of utility model: Magnetic shielding structure of high-capacity transformer Granted publication date: 20110713 License type: Exclusive License Record date: 20120113 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20131201 |