GB548848A - Electrical transformers - Google Patents

Electrical transformers

Info

Publication number
GB548848A
GB548848A GB12063/41A GB1206341A GB548848A GB 548848 A GB548848 A GB 548848A GB 12063/41 A GB12063/41 A GB 12063/41A GB 1206341 A GB1206341 A GB 1206341A GB 548848 A GB548848 A GB 548848A
Authority
GB
United Kingdom
Prior art keywords
turns
sept
winding
shield
transformers
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
GB12063/41A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB548848A publication Critical patent/GB548848A/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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/288—Shielding

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

548,848. Transformers. STANDARD TELEPHONES & CABLES, Ltd. Sept. 19, 1941, No. 12063. Convention date, Sept. 26, 1940. [Class 38 (ii)] In a high frequency transformer comprising primary and secondary 8, 9 distributed over a substantial part of a magnetic dust core 7 and separated by an earthed electrostatic shield 10, the winding 9 has non - uniformly pitched turns and is connected to the shield at a point (end or middle) where the turns are most widely spaced so as to have a low effective capacity to earth. The turns may be bunched to form additional layers at the close pitch end of the winding. Specification 438,803, [Group XXXVI], is referred to.
GB12063/41A 1940-09-26 1941-09-19 Electrical transformers Expired GB548848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US548848XA 1940-09-26 1940-09-26

Publications (1)

Publication Number Publication Date
GB548848A true GB548848A (en) 1942-10-27

Family

ID=21994132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12063/41A Expired GB548848A (en) 1940-09-26 1941-09-19 Electrical transformers

Country Status (1)

Country Link
GB (1) GB548848A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2830732A1 (en) * 1978-07-13 1980-01-31 Bosch Gmbh Robert Printed circuit coil deposited as flat spiral - has fixed gap between turns along radius varying in sections

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2830732A1 (en) * 1978-07-13 1980-01-31 Bosch Gmbh Robert Printed circuit coil deposited as flat spiral - has fixed gap between turns along radius varying in sections

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