CN103559995B - A kind of current transformer magnetism-free stainless steel protection unit - Google Patents

A kind of current transformer magnetism-free stainless steel protection unit Download PDF

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Publication number
CN103559995B
CN103559995B CN201310498927.8A CN201310498927A CN103559995B CN 103559995 B CN103559995 B CN 103559995B CN 201310498927 A CN201310498927 A CN 201310498927A CN 103559995 B CN103559995 B CN 103559995B
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China
Prior art keywords
stainless steel
magnetism
free stainless
current transformer
iron core
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CN201310498927.8A
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CN103559995A (en
Inventor
杨桂平
张广涛
陈泽
张银
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Jingjiang Jiangsu mutual inductor Limited by Share Ltd
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JIANGSU JINGJIANG INSTRUMENT TRANSFORMER FACTORY CO Ltd
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Publication of CN103559995A publication Critical patent/CN103559995A/en
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Abstract

The present invention discloses a kind of current transformer magnetism-free stainless steel protection unit, and this current transformer magnetism-free stainless steel protection unit comprises 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 outside cushioned material layer, and glass mat covers and protects on box at magnetism-free stainless steel. The present invention, with the use of non-magnetic rustproof steel, does not form eddy current, can not produce heat, reduce production cost, it is to increase the over-all properties of current transformer, increases iron core physical strength.

Description

A kind of current transformer magnetism-free stainless steel protection unit
Technical field
The invention belongs to current transformer technical field, particularly relate 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 additional magnetism-free stainless steel and protects box, and when coiling, directly the sectional area of increase iron core, does, cost compare height like this.
If reducing iron core cross section, iron core and copper cash consumption reduce, and reduce cost, but can be big because of convergent force after casting, cause iron core to be out of shape, affect the class of precision of product. The metering of Large Copacity power plant can be caused more considerable leakage meter loss by this.
When conventional art is produced, iron core does not need to install additional magnetism-free stainless steel and protects box, when coiling, and the directly sectional area of increase iron core, cost compare height.
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, it is intended to solve iron core when conventional art is produced do not need to install additional magnetism-free stainless steel and protect box, when coiling, directly increase the sectional area of iron core, the problem that cost compare is high.
The embodiment of the present invention realizes like this, a kind of current transformer magnetism-free stainless steel protection unit, and this current transformer magnetism-free stainless steel protection unit comprises 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 outside cushioned material layer, and glass mat covers and protects on box at magnetism-free stainless steel.
Further, the outside of glass mat arranges insulation, the cushioning material of the effect playing Seal & isolation.
Further, this current transformer magnetism-free stainless steel protection unit adopts the non-magnetic rustproof steel not forming eddy current and heat to make.
Current transformer magnetism-free stainless steel protection unit provided by the invention, by adopting the device of non-magnetic rustproof steel, it is to increase the over-all properties of mutual inductor, reduces energy consumption, simplify technique simultaneously, it is to increase quality product;The present invention strengthens iron core physical strength, reduces cost, protects box and uses non-magnetic rustproof steel, does not form eddy current, can not produce heat; In addition, present configuration is simple, it provides a kind of good current transformer magnetism-free stainless steel protection unit, preferably resolves traditional problem.
Accompanying drawing explanation
Fig. 1 is the structural representation that the 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 the object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated. It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
Fig. 1 shows current transformer magnetism-free stainless steel protection unit provided by the invention, and this current transformer magnetism-free stainless steel protection unit comprises 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 outside cushioned material layer, and glass mat covers and protects on box at magnetism-free stainless steel.
As a prioritization scheme of the embodiment of the present invention, the outside of glass mat arranges insulation, the cushioning material of the effect playing Seal & isolation.
As a prioritization scheme of the embodiment of the present invention, this current transformer magnetism-free stainless steel protection unit adopts the non-magnetic rustproof steel not forming eddy current and heat to make.
Below in conjunction with drawings and the specific embodiments, the application principle of the present invention is further described.
As shown in Figure 1, the current transformer magnetism-free stainless steel protection unit of the embodiment of the present invention primarily of: 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 outside cushioned material layer 2, and glass mat 3 covers and protects on box 4 at magnetism-free stainless steel;
The outside of glass mat 3 arranges insulation, the cushioning material of the effect playing Seal & isolation; Magnetism-free stainless steel protects box 4 and adopts the non-magnetic rustproof steel not forming eddy current and heat to make.
Iron core 1 is the core of voltage transformer, for providing magnetic flux path, it is to increase the eddy-current loss of the magnetic diffusivity of magnetic circuit and reduction iron core; Cushioned material layer 2 is coated on iron core 1 surface, iron core 1 serves insulation and the effect of buffering, protects iron core 1; The iron core 1 of parcel cushioned material layer 2 is put into magnetism-free stainless steel and protects box 4, for the protection of iron core 1, reduce the cross section of iron core 1, strengthen the physical strength of iron core 1; Glass mat 3 covers and protects on box 4 at magnetism-free stainless steel, and the outside insulation of glass mat 3, cushioning material are wrapped up tight, play the effect of Seal & isolation.
Using conventional production methods, the sectional area increasing 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
Calculating according to technical parameter, actual demand core dimensions is �� 1170* �� 1210*20 only, but in the state of the art, increases iron core sectional area, and size need to be increased to �� 1150* �� 1230*40,
From material usage contrast, calculating, only iron core and enameled wire just save 2745 yuan.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. done within the spirit and principles in the present invention, all should be included within protection scope of the present invention.

Claims (1)

1. a current transformer magnetism-free stainless steel protection unit, it is characterised in that, this current transformer magnetism-free stainless steel protection unit comprises 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 outside cushioned material layer, and glass mat covers and protects on box at magnetism-free stainless steel;
The outside of glass mat arranges the buffer insulation material being used for Seal & isolation;
This current transformer magnetism-free stainless steel protection unit adopts the non-magnetic rustproof steel not forming eddy current and heat to make.
CN201310498927.8A 2013-10-22 2013-10-22 A kind of current transformer magnetism-free stainless steel protection unit Active CN103559995B (en)

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

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CN103559995A CN103559995A (en) 2014-02-05
CN103559995B true CN103559995B (en) 2016-06-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4636360B2 (en) * 2004-04-27 2011-02-23 富士電機機器制御株式会社 Power distribution facilities
JP2007123625A (en) * 2005-10-28 2007-05-17 En Liang Enterprise Co Ltd Current transformer and manufacturing method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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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.