GB549567A - Improvements in and relating to electric transformers - Google Patents

Improvements in and relating to electric transformers

Info

Publication number
GB549567A
GB549567A GB13909/41A GB1390941A GB549567A GB 549567 A GB549567 A GB 549567A GB 13909/41 A GB13909/41 A GB 13909/41A GB 1390941 A GB1390941 A GB 1390941A GB 549567 A GB549567 A GB 549567A
Authority
GB
United Kingdom
Prior art keywords
oct
high frequency
frequency current
relating
walls
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
GB13909/41A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB549567A publication Critical patent/GB549567A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase AC
    • H01F38/28—Current transformers
    • H01F38/30—Constructions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

549,567. High frequency current transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 29, 1941, No. 13909. Convention date, Oct. 31, 1940. [Class 38 (ii)] A high frequency current transformer comprises an annular core 18 carrying a distributed secondary winding 21 supported and substantially enclosed by an electrostatic shield 31 extending through the structure and along both sides thereof, the outer edges being engaged by grooves 32 in the walls of an insulating housing, the side walls 14, 15 of which have holes 33, 34 through which the primary conductor 35 is passed. The secondary terminals 25 are bridged by a film cut-out of known type which breaks down to short circuit the secondary under excess voltage. Specification 488,120 is referred to.
GB13909/41A 1940-10-31 1941-10-29 Improvements in and relating to electric transformers Expired GB549567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US549567XA 1940-10-31 1940-10-31

Publications (1)

Publication Number Publication Date
GB549567A true GB549567A (en) 1942-11-26

Family

ID=21994608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13909/41A Expired GB549567A (en) 1940-10-31 1941-10-29 Improvements in and relating to electric transformers

Country Status (1)

Country Link
GB (1) GB549567A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017077379A1 (en) * 2015-11-05 2017-05-11 Hm Power Ab Current sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017077379A1 (en) * 2015-11-05 2017-05-11 Hm Power Ab Current sensor
CN108352249A (en) * 2015-11-05 2018-07-31 赫兹曼电力公司 Current sensor
CN108352249B (en) * 2015-11-05 2020-10-20 赫兹曼电力公司 Current sensor

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