JPS5552207A - Coiled steel core for transformer - Google Patents

Coiled steel core for transformer

Info

Publication number
JPS5552207A
JPS5552207A JP12504278A JP12504278A JPS5552207A JP S5552207 A JPS5552207 A JP S5552207A JP 12504278 A JP12504278 A JP 12504278A JP 12504278 A JP12504278 A JP 12504278A JP S5552207 A JPS5552207 A JP S5552207A
Authority
JP
Japan
Prior art keywords
steel sheet
silicon steel
directional silicon
grade
layer
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.)
Granted
Application number
JP12504278A
Other languages
Japanese (ja)
Other versions
JPS6028129B2 (en
Inventor
Hirobumi Kubo
Masaaki Sano
Kiyoji Iwashita
Sogo Teruyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP53125042A priority Critical patent/JPS6028129B2/en
Publication of JPS5552207A publication Critical patent/JPS5552207A/en
Publication of JPS6028129B2 publication Critical patent/JPS6028129B2/en
Expired legal-status Critical Current

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  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE: To improve material utilization rate and also to minimize iron loss, by winding a low-grade directional silicon steel sheet on center section in layer-piling direction and also winding a high-grade directional silicon steel sheet on inner and outer circumferential sections.
CONSTITUTION: A coiled steel core 1 is divided into 3 sections in layer-piling direction, a relatively low-grade directional silicon steel sheet is used in a center section 5 and a relatively high-grade directional silicon steel sheet is used on the both sides 4 and 6 of the center section so that the ratio of the latter to an entire body becomes 5W30% in weight percentage. By doing this, magnetic flux density distribution in the layer-piling direction of the coiled steel core 1 can be equalized, the iron core's characteristics can be remarkably improved simply by adding a small amount of a high-grade directional silicon steel sheet to a low-grade directional silicon steel sheet, and therefore, reduction of iron loss can be achieved economically.
COPYRIGHT: (C)1980,JPO&Japio
JP53125042A 1978-10-13 1978-10-13 Wound core for transformer Expired JPS6028129B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53125042A JPS6028129B2 (en) 1978-10-13 1978-10-13 Wound core for transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53125042A JPS6028129B2 (en) 1978-10-13 1978-10-13 Wound core for transformer

Publications (2)

Publication Number Publication Date
JPS5552207A true JPS5552207A (en) 1980-04-16
JPS6028129B2 JPS6028129B2 (en) 1985-07-03

Family

ID=14900390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53125042A Expired JPS6028129B2 (en) 1978-10-13 1978-10-13 Wound core for transformer

Country Status (1)

Country Link
JP (1) JPS6028129B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518305A1 (en) * 1981-12-11 1983-06-17 Westinghouse Electric Corp AMORPHOUS METAL CORE WITHOUT SEAL FOR ELECTRIC INDUCTION APPARATUS
JPS58120625U (en) * 1982-02-10 1983-08-17 株式会社　電元社製作所 Transformer structure
US4565746A (en) * 1981-10-30 1986-01-21 Mitsubishi Denki Kabushiki Kaisha Iron core for a stationary induction apparatus
JP2011155158A (en) * 2010-01-28 2011-08-11 Hitachi Ltd Hybrid wound cord, and hybrid current transformer
JP2012169666A (en) * 2005-07-08 2012-09-06 Hitachi Industrial Equipment Systems Co Ltd Wound iron core for static apparatus, and static apparatus with the same
CN103366928A (en) * 2013-08-08 2013-10-23 韩宝华 Double-opening magnetic electric equipment iron core component body
JP2023146181A (en) * 2022-03-29 2023-10-12 Ｊｆｅスチール株式会社 Three-phase tripod-wound core and three-phase tripod-wound core transformer using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565746A (en) * 1981-10-30 1986-01-21 Mitsubishi Denki Kabushiki Kaisha Iron core for a stationary induction apparatus
FR2518305A1 (en) * 1981-12-11 1983-06-17 Westinghouse Electric Corp AMORPHOUS METAL CORE WITHOUT SEAL FOR ELECTRIC INDUCTION APPARATUS
JPS58120625U (en) * 1982-02-10 1983-08-17 株式会社　電元社製作所 Transformer structure
JP2012169666A (en) * 2005-07-08 2012-09-06 Hitachi Industrial Equipment Systems Co Ltd Wound iron core for static apparatus, and static apparatus with the same
JP2011155158A (en) * 2010-01-28 2011-08-11 Hitachi Ltd Hybrid wound cord, and hybrid current transformer
CN103366928A (en) * 2013-08-08 2013-10-23 韩宝华 Double-opening magnetic electric equipment iron core component body
JP2023146181A (en) * 2022-03-29 2023-10-12 Ｊｆｅスチール株式会社 Three-phase tripod-wound core and three-phase tripod-wound core transformer using the same

Also Published As

Publication number Publication date
JPS6028129B2 (en) 1985-07-03

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