GB1383208A - Transformers - Google Patents

Transformers

Info

Publication number
GB1383208A
GB1383208A GB3794771A GB3794771A GB1383208A GB 1383208 A GB1383208 A GB 1383208A GB 3794771 A GB3794771 A GB 3794771A GB 3794771 A GB3794771 A GB 3794771A GB 1383208 A GB1383208 A GB 1383208A
Authority
GB
United Kingdom
Prior art keywords
windings
screens
copper
screen
aug
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
GB3794771A
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.)
Gemalto Terminals Ltd
Original Assignee
Solartron Electronic Group 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 Solartron Electronic Group Ltd filed Critical Solartron Electronic Group Ltd
Priority to GB3794771A priority Critical patent/GB1383208A/en
Priority to FR7228439A priority patent/FR2148514A1/fr
Publication of GB1383208A publication Critical patent/GB1383208A/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
    • 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
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
    • 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
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/10—Single-phase transformers

Landscapes

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

Abstract

1383208 Transformers SOLARTRON ELECTRONIC GROUP Ltd 7 Aug 1972 [12 Aug 1971] 37947/71 Heading H1T A transformer having a low primary to secondary capacitance has its primary and secondary windings 20, 22 disposed coaxially in an annular cavity in a (ferrite pot) core 12 each winding being substantially enclosed in a respective electro-static screen 26. The screens each have a gap or an overlapping separated by insulation to prevent them from acting as shorted turns and may be continued along the leads to the windings and connected to the screens of screened cables. The screens may be of copper or copper impregnated tape or strip or the windings may be enclosed in annular conductive or copper coated or impregnated containers (Figs. 2 and 2a, not shown). The windings may be separated by annular metal disc screen 24 having its overlapping ends insulated at 27. A plurality of secondary windings, each with its own screen, may be provided.
GB3794771A 1971-08-12 1971-08-12 Transformers Expired GB1383208A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3794771A GB1383208A (en) 1971-08-12 1971-08-12 Transformers
FR7228439A FR2148514A1 (en) 1971-08-12 1972-08-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3794771A GB1383208A (en) 1971-08-12 1971-08-12 Transformers

Publications (1)

Publication Number Publication Date
GB1383208A true GB1383208A (en) 1975-02-05

Family

ID=10400152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3794771A Expired GB1383208A (en) 1971-08-12 1971-08-12 Transformers

Country Status (2)

Country Link
FR (1) FR2148514A1 (en)
GB (1) GB1383208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013117973A3 (en) * 2012-02-06 2014-01-23 Toyota Jidosha Kabushiki Kaisha Power transmitting device, power receiving device and power transfer system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4344183A1 (en) * 1993-12-23 1995-06-29 Ant Nachrichtentech High voltage transformer and use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013117973A3 (en) * 2012-02-06 2014-01-23 Toyota Jidosha Kabushiki Kaisha Power transmitting device, power receiving device and power transfer system

Also Published As

Publication number Publication date
FR2148514A1 (en) 1973-03-23

Similar Documents

Publication Publication Date Title
GB1388065A (en) Electromagnetic induction apparatus
GB1231108A (en)
GB1071469A (en) High voltage winding
GB1170473A (en) A Transformer
ES475826A1 (en) Transient voltage distribution improving line shield for layer wound power transformer
GB988020A (en) Transformer windings for heavy-current installations
GB1251356A (en)
GB1133305A (en) Winding structure for electrical inductive apparatus
GB1383208A (en) Transformers
GB1161774A (en) An Inductor on a Flat Insulating Substrate
GB1315185A (en) Trigger circuit for controlled rectifiers
GB1481345A (en) Emergency lighting systems
GB1240795A (en) Transformer bobbins
GB1112727A (en) Improvements in high voltage electric induction apparatus
GB981517A (en) An improved balanced phase shift transformer
GB962222A (en) Improvements in or relating to inductive windings
GB1142598A (en) High voltage coil
US3968408A (en) Neutralizing transformer
SU653629A1 (en) Winding for transformers
GB1134529A (en) Transformer winding and shielding structure
GB947330A (en) Improvements in or relating to transformers
GB1470170A (en) Rectifier control circuit
GB982561A (en) Improvements in and relating to helically wound coils
GB562902A (en) Improvements in and relating to electric transformers
GB1500484A (en) Ignition coils

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee