GB722560A - Improvements in or relating to high voltage electrical transformers - Google Patents

Improvements in or relating to high voltage electrical transformers

Info

Publication number
GB722560A
GB722560A GB20374/52A GB2037452A GB722560A GB 722560 A GB722560 A GB 722560A GB 20374/52 A GB20374/52 A GB 20374/52A GB 2037452 A GB2037452 A GB 2037452A GB 722560 A GB722560 A GB 722560A
Authority
GB
United Kingdom
Prior art keywords
core
plates
high voltage
winding
flux
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.)
Expired
Application number
GB20374/52A
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.)
MICAFIL Ltd
Original Assignee
MICAFIL 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 MICAFIL Ltd filed Critical MICAFIL Ltd
Publication of GB722560A publication Critical patent/GB722560A/en
Expired 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Landscapes

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

Abstract

722,560. Transformers. MICAFIL, Ltd. Aug. 13, 1952 [Aug. 13, 1951], No. 20374/52. Class 38 (2). A core suitable for a high voltage transformer comprises layers of mutually separated ferromagnetic plates, the layer being separated by insulating sheets D of hard paper, pressboard, oil-saturated paper, mica or moulded resin. The plates in adjacent layers are staggered, the flux flowing in paths indicated by chain dotted lines. The core thus forms a non-conducting structure to which the coils of the high voltage winding may be connected so that there is little potential difference between the winding and the core, only thin insulation being needed. Connection is made by bolts holding the plates together, some of which are not insulated and connect together plates in alternate layers similarly placed with respect to the magnetic and electric fields. The core may form a capactive load reducing the magnetizing current. The primary winding may be located at one end of the core, a tertiary winding connected to a capacitor may provide phase compensation and improved flux distribution. A cylindrical core may have transverse yokes at each end to improve the return flow of flux through the air. The magnetic elements may be in the form of wires.
GB20374/52A 1951-08-13 1952-08-13 Improvements in or relating to high voltage electrical transformers Expired GB722560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH722560X 1951-08-13

Publications (1)

Publication Number Publication Date
GB722560A true GB722560A (en) 1955-01-26

Family

ID=4531660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20374/52A Expired GB722560A (en) 1951-08-13 1952-08-13 Improvements in or relating to high voltage electrical transformers

Country Status (1)

Country Link
GB (1) GB722560A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU205113U1 (en) * 2021-02-24 2021-06-28 Ханан Григорьевич Офенгейм TRANSFORMER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU205113U1 (en) * 2021-02-24 2021-06-28 Ханан Григорьевич Офенгейм TRANSFORMER

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