CN103559995A - Non-magnetic stainless steel protection device for current transformer - Google Patents
Non-magnetic stainless steel protection device for current transformer Download PDFInfo
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- CN103559995A CN103559995A CN201310498927.8A CN201310498927A CN103559995A CN 103559995 A CN103559995 A CN 103559995A CN 201310498927 A CN201310498927 A CN 201310498927A CN 103559995 A CN103559995 A CN 103559995A
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- current transformer
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Abstract
The invention discloses a non-magnetic stainless steel protection device for a current transformer. The non-magnetic stainless steel protection device for the current transformer comprises an iron core, a cushioning material layer, a glass fiber plate and a non-magnetic stainless steel protection box. The cushioning material layer is arranged on the surface of the iron core, the non-magnetic stainless steel protection box is arranged outside the cushioning material layer, and the glass fiber plate covers the non-magnetic stainless steel protection box. By using a non-magnetic stainless steel material, eddies are not formed, heat is not generated, the production cost is reduced, comprehensive performance of the current transformer is improved, and mechanical strength of the iron core is improved.
Description
Technical field
The invention belongs to current transformer technical field, relate in particular to a kind of current transformer magnetism-free stainless steel protection unit.
Background technology
For 1000MW generator outlet Current Transformer, when conventional art is produced, iron core does not need to install magnetism-free stainless steel additional and protects box, when coiling, directly increases the sectional area of iron core, does like this, and cost compare is high.
If reduction core section, iron core and copper cash consumption reduce, and have reduced cost, but can be large because of convergent force after moulding by casting, cause iron core distortion, affect the accuracy class of product.The metering of Zhe Dui great capacity power plant can cause more considerable leakage meter loss.
When conventional art is produced, iron core does not need to install magnetism-free stainless steel additional and protects box, when coiling, directly increases the sectional area of iron core, and cost compare is high.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of current transformer magnetism-free stainless steel protection unit, when being intended to solve conventional art and producing, iron core does not need to install magnetism-free stainless steel additional and protects box, when coiling, directly increase the sectional area of iron core, the problem that cost compare is high.
The embodiment of the present invention is achieved in that a kind of current transformer magnetism-free stainless steel protection unit, and this current transformer comprises that with magnetism-free stainless steel protection unit iron core, cushioned material layer, glass mat, magnetism-free stainless steel protect box;
Cushioned material layer is arranged on iron core surface, and magnetism-free stainless steel protects box and is arranged on cushioned material layer outside, and glass mat covers at magnetism-free stainless steel and protects on box.
Further, the outside of glass mat arranges insulation, the padded coaming of the effect of playing Seal & isolation.
Further, this current transformer adopts the non-magnetic rustproof Steel material that does not form eddy current and heat to make with magnetism-free stainless steel protection unit.
Current transformer provided by the invention magnetism-free stainless steel protection unit, by adopting the device of non-magnetic rustproof Steel material, has improved the combination property of instrument transformer, has reduced energy consumption simultaneously, has simplified technique, has improved product quality; The present invention strengthens iron core mechanical strength, has reduced cost, protects box and uses non-magnetic rustproof Steel material, does not form eddy current, can not produce heat; In addition, the present invention is simple in structure, and a kind of good current transformer magnetism-free stainless steel protection unit is provided, and preferably resolves traditional problem.
Accompanying drawing explanation
Fig. 1 is the structural representation that magnetism-free stainless steel that the embodiment of the present invention provides protects box;
In figure: 1, cushioned material layer; 2, iron core; 3, magnetism-free stainless steel protects box; 4, glass mat.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows current transformer provided by the invention magnetism-free stainless steel protection unit, and this current transformer comprises that with magnetism-free stainless steel protection unit iron core, cushioned material layer, glass mat, magnetism-free stainless steel protect box;
Cushioned material layer is arranged on iron core surface, and magnetism-free stainless steel protects box and is arranged on cushioned material layer outside, and glass mat covers at magnetism-free stainless steel and protects on box.
As a prioritization scheme of the embodiment of the present invention, the outside of glass mat arranges insulation, the padded coaming of the effect of playing Seal & isolation.
As a prioritization scheme of the embodiment of the present invention, this current transformer adopts the non-magnetic rustproof Steel material that does not form eddy current and heat to make with magnetism-free stainless steel protection unit.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Figure 1, the current transformer of the embodiment of the present invention with magnetism-free stainless steel protection unit mainly by: iron core 1, cushioned material layer 2, glass mat 3, magnetism-free stainless steel protect box 4 and form; Cushioned material layer 2 is arranged on iron core 1 surface, and magnetism-free stainless steel protects box 4 and is arranged on cushioned material layer 2 outsides, and glass mat 3 covers at magnetism-free stainless steel and protects on box 4;
The outside of glass mat 3 arranges insulation, the padded coaming of the effect of playing Seal & isolation; Magnetism-free stainless steel protects box 4 and adopts the non-magnetic rustproof Steel material that does not form eddy current and heat to make.
Use conventional production methods, the sectional area that increases iron core can make production material cost higher, and prior art and materials of the present invention contrast are as follows:
Model: LMZD11-27 rated transformation ratio: 28000/1 class of accuracy: 0.2S rated load: 60VA
According to technical parameter, calculate, actual demand core dimensions is Φ 1170* Φ 1210*20 only, but the in the situation that of prior art, increases core section long-pending, and size need be increased to Φ 1150* Φ 1230*40,
From material usage contrast, calculate, only iron core and enamelled wire are just saved 2745 yuan.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a current transformer magnetism-free stainless steel protection unit, is characterized in that, this current transformer comprises that with magnetism-free stainless steel protection unit iron core, cushioned material layer, glass mat, magnetism-free stainless steel protect box;
Cushioned material layer is arranged on iron core surface, and magnetism-free stainless steel protects box and is arranged on cushioned material layer outside, and glass mat covers at magnetism-free stainless steel and protects on box.
2. current transformer as claimed in claim 1 magnetism-free stainless steel protection unit, is characterized in that, the outside of glass mat arranges insulation, the padded coaming of the effect of playing Seal & isolation.
3. current transformer as claimed in claim 1 magnetism-free stainless steel protection unit, is characterized in that, this current transformer adopts the non-magnetic rustproof Steel material that does not form eddy current and heat to make with magnetism-free stainless steel protection unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498927.8A CN103559995B (en) | 2013-10-22 | 2013-10-22 | A kind of current transformer magnetism-free stainless steel protection unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498927.8A CN103559995B (en) | 2013-10-22 | 2013-10-22 | A kind of current transformer magnetism-free stainless steel protection unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103559995A true CN103559995A (en) | 2014-02-05 |
| CN103559995B CN103559995B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310498927.8A Active CN103559995B (en) | 2013-10-22 | 2013-10-22 | A kind of current transformer magnetism-free stainless steel protection unit |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005317681A (en) * | 2004-04-27 | 2005-11-10 | Fuji Electric Fa Components & Systems Co Ltd | Through type current transformer and power receiving/distributing facility provided therewith |
| JP2007123625A (en) * | 2005-10-28 | 2007-05-17 | En Liang Enterprise Co Ltd | Current transformer and manufacturing method thereof |
| CN101256893A (en) * | 2007-12-27 | 2008-09-03 | 西安电力机械制造公司 | Current mutual inductor |
| CN101663712A (en) * | 2007-04-12 | 2010-03-03 | Abb技术有限公司 | Outdoor electrical device with an improved resin insulation system |
| CN201435304Y (en) * | 2009-05-22 | 2010-03-31 | 浙江天正电气股份有限公司 | Current mutual inductor |
| CN102074334A (en) * | 2010-12-06 | 2011-05-25 | 保定天威集团有限公司 | Current transformer iron core |
| CN201936731U (en) * | 2011-01-23 | 2011-08-17 | 常州三恒电器有限公司 | Permalloy transformer |
-
2013
- 2013-10-22 CN CN201310498927.8A patent/CN103559995B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005317681A (en) * | 2004-04-27 | 2005-11-10 | Fuji Electric Fa Components & Systems Co Ltd | Through type current transformer and power receiving/distributing facility provided therewith |
| JP2007123625A (en) * | 2005-10-28 | 2007-05-17 | En Liang Enterprise Co Ltd | Current transformer and manufacturing method thereof |
| CN101663712A (en) * | 2007-04-12 | 2010-03-03 | Abb技术有限公司 | Outdoor electrical device with an improved resin insulation system |
| CN101256893A (en) * | 2007-12-27 | 2008-09-03 | 西安电力机械制造公司 | Current mutual inductor |
| CN201435304Y (en) * | 2009-05-22 | 2010-03-31 | 浙江天正电气股份有限公司 | Current mutual inductor |
| CN102074334A (en) * | 2010-12-06 | 2011-05-25 | 保定天威集团有限公司 | Current transformer iron core |
| CN201936731U (en) * | 2011-01-23 | 2011-08-17 | 常州三恒电器有限公司 | Permalloy transformer |
Non-Patent Citations (2)
| Title |
|---|
| 刘雄亚: "《玻璃钢实用技术（一） 玻璃钢应用》", 30 March 1990, 中国建筑工业出版社 * |
| 文九巴: "《机械工程材料》", 31 July 2002, 机械工业出版社 * |
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| CN103559995B (en) | 2016-06-08 |
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Effective date of registration: 20190528 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, Taizhou City, Jiangsu Province Patentee before: Jiangsu Jingjiang Instrument Transformer Factory Co., Ltd. |
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