GB1185304A - Electrostatic Screens, especially for Toroidal Transformers. - Google Patents

Electrostatic Screens, especially for Toroidal Transformers.

Info

Publication number
GB1185304A
GB1185304A GB01827/66A GB1182766A GB1185304A GB 1185304 A GB1185304 A GB 1185304A GB 01827/66 A GB01827/66 A GB 01827/66A GB 1182766 A GB1182766 A GB 1182766A GB 1185304 A GB1185304 A GB 1185304A
Authority
GB
United Kingdom
Prior art keywords
tape
strip
winding
coating
screen
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
GB01827/66A
Inventor
Brian Michael Faller
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.)
Hawker Siddeley Dynamics Ltd
Original Assignee
Hawker Siddeley Dynamics 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 Hawker Siddeley Dynamics Ltd filed Critical Hawker Siddeley Dynamics Ltd
Priority to GB01827/66A priority Critical patent/GB1185304A/en
Priority to US623327A priority patent/US3503126A/en
Priority to NL6703891A priority patent/NL6703891A/xx
Priority to SE3669/67A priority patent/SE325080B/xx
Priority to DE19671613746 priority patent/DE1613746C/en
Priority to FR99179A priority patent/FR1538339A/en
Priority to BE695710D priority patent/BE695710A/xx
Publication of GB1185304A publication Critical patent/GB1185304A/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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • 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
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Insulating Of Coils (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1,185,304. Transformers. HAWKER SIDDELEY DYNAMICS Ltd. 14 March, 1967 [17 March, 1966], No. 11827/66. Heading H1T. An, electrostatic screen is applied over an electrical winding 1 e.g. of a toroidal transformer, by placing a layer of insulating material 3, e.g. P.T.F.E., over the winding, coating it with conductive paint 4, leaving a narrow uncoated strip 6 produced by e.g. masking using tape 5, applying insulating tape 7 along the uncoated strip so that one edge of the tape 7 lies within the width of the strip and the other overlaps the coating, then applying conductive paint 8 to the remaining uncovered portion of the uncoated strip and continuing the coating over the width of the tape 7 such that an opencircuited turn is produced with its ends slightly overlapping but spaced by tape 7. The winding may first be covered with cotton tape 2 and varnish-impregnated earth connection to the screen may be by a strip of copper foil (9) (Fig. 1, not shown) or a conductor secured by conductive cement. The paint is cured and the winding and screen covered by one or two layers of cotton tape. Multiple screens may be provided.
GB01827/66A 1966-03-17 1966-03-17 Electrostatic Screens, especially for Toroidal Transformers. Expired GB1185304A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB01827/66A GB1185304A (en) 1966-03-17 1966-03-17 Electrostatic Screens, especially for Toroidal Transformers.
US623327A US3503126A (en) 1966-03-17 1967-03-15 Method of making electrostatic screens,especially for toroidal transformers
NL6703891A NL6703891A (en) 1966-03-17 1967-03-15
SE3669/67A SE325080B (en) 1966-03-17 1967-03-16
DE19671613746 DE1613746C (en) 1966-03-17 1967-03-16 Method for producing an electrostatic shield
FR99179A FR1538339A (en) 1966-03-17 1967-03-17 electrostatic screens, in particular for toroidal transformers
BE695710D BE695710A (en) 1966-03-17 1967-03-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB01827/66A GB1185304A (en) 1966-03-17 1966-03-17 Electrostatic Screens, especially for Toroidal Transformers.

Publications (1)

Publication Number Publication Date
GB1185304A true GB1185304A (en) 1970-03-25

Family

ID=9993429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01827/66A Expired GB1185304A (en) 1966-03-17 1966-03-17 Electrostatic Screens, especially for Toroidal Transformers.

Country Status (5)

Country Link
US (1) US3503126A (en)
BE (1) BE695710A (en)
GB (1) GB1185304A (en)
NL (1) NL6703891A (en)
SE (1) SE325080B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192165A1 (en) * 1985-02-19 1986-08-27 Asea Ab Power transformer for converter stations in high voltage direct current installations

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676772A (en) * 1970-08-18 1972-07-11 Nasa Metallic intrusion detector system
US4459576A (en) * 1982-09-29 1984-07-10 Westinghouse Electric Corp. Toroidal transformer with electrostatic shield
JP5660911B2 (en) * 2011-01-28 2015-01-28 三菱航空機株式会社 Lightning current detection sensor
US9257224B2 (en) * 2012-12-21 2016-02-09 Raytheon Company Shield for toroidal core electromagnetic device, and toroidal core electromagnetic devices utilizing such shields
CN113611506B (en) * 2021-07-23 2022-10-21 保定天威保变电气股份有限公司 Trapezoidal double-layer electrostatic ring structure at end part of spiral coil and use method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063135A (en) * 1962-11-13 E clark
US1586889A (en) * 1926-06-01 Magnetic structure and method op manupacture
US1320980A (en) * 1918-09-21 1919-11-04 Western Electric Co Transformer.
US3032729A (en) * 1957-05-16 1962-05-01 Phillips Petroleum Co Temperature stable transformer
US3149296A (en) * 1961-01-03 1964-09-15 Gulton Ind Inc Shielded transformer
US3143720A (en) * 1961-03-02 1964-08-04 Space Technology Lab Inc Superconductive transformer
US3292127A (en) * 1963-07-01 1966-12-13 Beckman Instruments Inc Closed circuit resistive shielding for multiwinding transformers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192165A1 (en) * 1985-02-19 1986-08-27 Asea Ab Power transformer for converter stations in high voltage direct current installations

Also Published As

Publication number Publication date
US3503126A (en) 1970-03-31
NL6703891A (en) 1967-09-18
DE1613746B2 (en) 1972-07-20
DE1613746A1 (en) 1970-10-22
SE325080B (en) 1970-06-22
BE695710A (en) 1967-09-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees