JPS5661108A - Winding for naturally cooled inductive machine - Google Patents

Winding for naturally cooled inductive machine

Info

Publication number
JPS5661108A
JPS5661108A JP13646179A JP13646179A JPS5661108A JP S5661108 A JPS5661108 A JP S5661108A JP 13646179 A JP13646179 A JP 13646179A JP 13646179 A JP13646179 A JP 13646179A JP S5661108 A JPS5661108 A JP S5661108A
Authority
JP
Japan
Prior art keywords
winding
flow
oil paths
coils
horizontal oil
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
JP13646179A
Other languages
Japanese (ja)
Other versions
JPS628925B2 (en
Inventor
Masanori Yamaguchi
Takao Kumasaka
Kunio Katada
Shigeo Shirato
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 JP13646179A priority Critical patent/JPS5661108A/en
Publication of JPS5661108A publication Critical patent/JPS5661108A/en
Publication of JPS628925B2 publication Critical patent/JPS628925B2/ja
Granted 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2876—Cooling

Landscapes

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

Abstract

PURPOSE:To improve the natural cooling characteristics of the winding of the inductive machine by establishing the number of the coils arranged in one flow-bending section and the mean flowing velocity in the horizontal oil paths in the flow- bending section as specified. CONSTITUTION:The coils are stacked with the horizontal oil paths being provided and the disk shaped winding is formed. The winding is arranged between an inner insulating tube 6 and an outer insulating tube 7, thereby vertical oil paths 4 and 5 are formed on the inside and the outside. Flow-bending plates 8 are provided at every specified number of coils, and the oil paths of the inside and the outside are closed alternately. When the width in the direction of the diameter of the coil is L and the hight of the horizontal oil path is d, L/d=3-35 is established. The number of the coils in one flow-bending section is 10 or more. The mean flow velocity Vcm/ sec in the horizontal oil paths is selected to be V>=3.07X10<-4>q+0.28 or V>=2.69X 10<-4>q+0.24 in relation to the thermal flux density q of the coil surface corresponding to 5-9. In this constitution, partial temperature rise of the coil can be prevented, and the winding can be naturally cooled excellently.
JP13646179A 1979-10-24 1979-10-24 Winding for naturally cooled inductive machine Granted JPS5661108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13646179A JPS5661108A (en) 1979-10-24 1979-10-24 Winding for naturally cooled inductive machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13646179A JPS5661108A (en) 1979-10-24 1979-10-24 Winding for naturally cooled inductive machine

Publications (2)

Publication Number Publication Date
JPS5661108A true JPS5661108A (en) 1981-05-26
JPS628925B2 JPS628925B2 (en) 1987-02-25

Family

ID=15175646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13646179A Granted JPS5661108A (en) 1979-10-24 1979-10-24 Winding for naturally cooled inductive machine

Country Status (1)

Country Link
JP (1) JPS5661108A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117116606A (en) * 2023-10-18 2023-11-24 河北宝利输变电设备制造有限公司 Low-noise distribution transformer device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241826A (en) * 1975-05-12 1977-03-31 Gec South Africa Pty Cooled transformer
JPS5243939A (en) * 1975-10-03 1977-04-06 Hitachi Ltd Cooling device of oil-immersed electric apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241826A (en) * 1975-05-12 1977-03-31 Gec South Africa Pty Cooled transformer
JPS5243939A (en) * 1975-10-03 1977-04-06 Hitachi Ltd Cooling device of oil-immersed electric apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117116606A (en) * 2023-10-18 2023-11-24 河北宝利输变电设备制造有限公司 Low-noise distribution transformer device
CN117116606B (en) * 2023-10-18 2024-03-12 河北宝利输变电设备制造有限公司 Low-noise distribution transformer device

Also Published As

Publication number Publication date
JPS628925B2 (en) 1987-02-25

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