JPS55156312A - Iron core for transformer - Google Patents

Iron core for transformer

Info

Publication number
JPS55156312A
JPS55156312A JP6385079A JP6385079A JPS55156312A JP S55156312 A JPS55156312 A JP S55156312A JP 6385079 A JP6385079 A JP 6385079A JP 6385079 A JP6385079 A JP 6385079A JP S55156312 A JPS55156312 A JP S55156312A
Authority
JP
Japan
Prior art keywords
main leg
leg
cooling duct
cooling
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
Application number
JP6385079A
Other languages
Japanese (ja)
Inventor
Masaaki Maejima
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 JP6385079A priority Critical patent/JPS55156312A/en
Publication of JPS55156312A publication Critical patent/JPS55156312A/en
Pending legal-status Critical Current

Links

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
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

PURPOSE:To improve the cooling effect of a main leg and to prevent its extension due to heat by a method wherein a cross sectional area of a cooling duct is enlarged by inserting into the main leg a metal spacer with the form of a thin plate. CONSTITUTION:An external leg 2 is arranged by inserting into it an insulating spacer 6 having a square cross section where a cooling duct 7 having a square cross section is formed, but a main leg 1 is arranged by inserting a corrugated metal spacer made of nonmagnetized material in the form of a thin plate. For this reason, the cross sectional area of the cooling duct 7 for the main leg is made larger than that of the cooling duct 7 for the external leg 2, so that the larger quantity of insulating oil flows, improving the cooling effect of the main leg 1. Increase in loss of iron caused by the force of compression being generated by the extension due to heat can be prevented, thus the contraction of the cooling apparatus is made possible and the suppresion of the generation of damage of the winding at the iron core can be realized.
JP6385079A 1979-05-25 1979-05-25 Iron core for transformer Pending JPS55156312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6385079A JPS55156312A (en) 1979-05-25 1979-05-25 Iron core for transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6385079A JPS55156312A (en) 1979-05-25 1979-05-25 Iron core for transformer

Publications (1)

Publication Number Publication Date
JPS55156312A true JPS55156312A (en) 1980-12-05

Family

ID=13241213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6385079A Pending JPS55156312A (en) 1979-05-25 1979-05-25 Iron core for transformer

Country Status (1)

Country Link
JP (1) JPS55156312A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002217040A (en) * 2001-01-16 2002-08-02 Sao Denki Kogyosho:Kk Stationary induction electrical equipment
WO2018086810A1 (en) * 2016-11-09 2018-05-17 Siemens Aktiengesellschaft Core for an electrical induction device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002217040A (en) * 2001-01-16 2002-08-02 Sao Denki Kogyosho:Kk Stationary induction electrical equipment
WO2018086810A1 (en) * 2016-11-09 2018-05-17 Siemens Aktiengesellschaft Core for an electrical induction device
CN109923626A (en) * 2016-11-09 2019-06-21 西门子股份公司 Core for electrical induction device
CN109923626B (en) * 2016-11-09 2021-06-04 西门子股份公司 Core for an electric induction device
US11404196B2 (en) 2016-11-09 2022-08-02 Siemens Energy Global GmbH & Co. KG Core for an electrical induction device

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