JPS57208116A - Stationary induction electric apparatus - Google Patents

Stationary induction electric apparatus

Info

Publication number
JPS57208116A
JPS57208116A JP56092250A JP9225081A JPS57208116A JP S57208116 A JPS57208116 A JP S57208116A JP 56092250 A JP56092250 A JP 56092250A JP 9225081 A JP9225081 A JP 9225081A JP S57208116 A JPS57208116 A JP S57208116A
Authority
JP
Japan
Prior art keywords
winding
magnetic
phase
magnetic shield
center
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
JP56092250A
Other languages
Japanese (ja)
Inventor
Tatsu Saito
Yasuaki Suzuki
Tomoe Kurosawa
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 JP56092250A priority Critical patent/JPS57208116A/en
Publication of JPS57208116A publication Critical patent/JPS57208116A/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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)

Abstract

PURPOSE:To easily insure an insulation distance within oil in a winding and a magnetic shield, by thickening magnetic shield material placed around the magnetic shield as compared to one placed near the phase center of a winding. CONSTITUTION:A magnetic sheild 4c at the nearest phase center of a winding 2 is made thin, and a magnetic shield 4d near the center of phase center and inter- phase is made thick. A magnetic shield 4e is made thin at the inter-phase which is low in invading magnetic flux leakage. Such a constitution makes low magnetic reluctance around the phase center of winding. The magnetic flux leakage from the winding 2 tends to disperse in a wide range.
JP56092250A 1981-06-17 1981-06-17 Stationary induction electric apparatus Pending JPS57208116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56092250A JPS57208116A (en) 1981-06-17 1981-06-17 Stationary induction electric apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56092250A JPS57208116A (en) 1981-06-17 1981-06-17 Stationary induction electric apparatus

Publications (1)

Publication Number Publication Date
JPS57208116A true JPS57208116A (en) 1982-12-21

Family

ID=14049174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56092250A Pending JPS57208116A (en) 1981-06-17 1981-06-17 Stationary induction electric apparatus

Country Status (1)

Country Link
JP (1) JPS57208116A (en)

Similar Documents

Publication Publication Date Title
AU576119B2 (en) Shielded current sensor
JPS54113099A (en) Improved open magnetic circuit magnet structure for transposition electromagnetic field type electron tube* etc*
JPS57208116A (en) Stationary induction electric apparatus
KR910007256A (en) Line filter
JPS5410994A (en) Electric insulating apparatus
JPS57170324A (en) Conveying apparatus
JPS5229927A (en) Induction electric machine
JPS5411411A (en) Magnetic circuit
JPS5392425A (en) Stationary induction electrical apparatus
JPS51149523A (en) Stationary induction electric apparatus
JPS529822A (en) Stationary induction electric equipment
JPS5442610A (en) Capacitor induction electric motor
JPS52144787A (en) Gas insulated switch
JPS5577114A (en) Magnetic part
JPS5235827A (en) Power source transformer for electronic range
JPS5354704A (en) Electromagnetic device
JPS5385314A (en) Stator of alternating current machine
JPS54119621A (en) Electrostatic plate for electric induction apparatus
JPS5475014A (en) Voice coil type linear motor
JPS5363507A (en) Single phase induction motors
GB2018046A (en) Electrical insulator for synchronous motor
JPS5332310A (en) Armature coil in electric rotary machine
JPS556803A (en) Winding support apparatus for induction electrical appliance
JPS5240726A (en) Magnetic shielding device of static induction appliance
JPS52123200A (en) Course indication system by electromagnetic field