GB766905A - Improvements relating to the insulation of high-voltage electrical apparatus - Google Patents

Improvements relating to the insulation of high-voltage electrical apparatus

Info

Publication number
GB766905A
GB766905A GB17513/54A GB1751354A GB766905A GB 766905 A GB766905 A GB 766905A GB 17513/54 A GB17513/54 A GB 17513/54A GB 1751354 A GB1751354 A GB 1751354A GB 766905 A GB766905 A GB 766905A
Authority
GB
United Kingdom
Prior art keywords
casing
insulation
synthetic resin
core
feb
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
GB17513/54A
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.)
Moser Glaser and Co AG
A Reyrolle and Co Ltd
Original Assignee
Moser Glaser and Co AG
A Reyrolle and 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 Moser Glaser and Co AG, A Reyrolle and Co Ltd filed Critical Moser Glaser and Co AG
Publication of GB766905A publication Critical patent/GB766905A/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
    • H01F27/327—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/28—Capacitor type
    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/01—Anti-tracking
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/10—Bushing with current transformers

Abstract

766,905. Transformers. REYROLLE & CO., Ltd., A., and MOSER-GLASER & CO., AKT.-GES. June 15, 1954 [June 15, 1953; Feb. 1, 1954; Feb. 5, 1954; Feb. 5, 1954; April 13, 1954], No. 17513/54. Class 38 (2). [Also in Group XXXVI] The insulation of a current or potential transformer is in two parts, the inner part comprising solid non- rigid type of material such as paper, wax or a thermoplastic material, the outer part comprising a casing of low-moulding pressure synthetic resin. A current transformer comprises a core 10 surrounded by a toroidal secondary winding 11. A primary winding and lead-in conductor are contained in a ring 12 and tube 13, the ring 12 being linked with the core 10. The ring 12 and tube 13 are embedded in an insulation 14 of wound paper which is then embedded in a casing 15 of synthetic resin. Stress distributing foils 17 are arranged in the paper insulation 14 and an earthed metal coating 19 is applied to the bulbous end of the casing 15. The embodiment shown in Fig. 3 is of a straight-through bushing type current transformer in which the wound paper insulation 33 is partly surrounded by the core 30 and partly by the synthetic resin casing 34. The synthetic resin casing may only be applied at the ends, a metal tube forming the centre part of the casing. The inner part of the insulant may be impregnated with any suitable material which may be maintained at a pressure higher than atmospheric. The outer casing may be in two parts which may be of different resins. In the embodiment shown in Fig. 3 the magnetic core 30 and the secondary winding 31 may be replaced by an earthed metal flange, the apparatus then becoming a condenser-type bushing insulator. Specifications 507,000, 537,206 and 537,268, [Group XXXVI], are referred to.
GB17513/54A 1953-06-15 1954-06-15 Improvements relating to the insulation of high-voltage electrical apparatus Expired GB766905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1107933X 1953-06-15

Publications (1)

Publication Number Publication Date
GB766905A true GB766905A (en) 1957-01-30

Family

ID=4557889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17513/54A Expired GB766905A (en) 1953-06-15 1954-06-15 Improvements relating to the insulation of high-voltage electrical apparatus

Country Status (4)

Country Link
US (1) US2945912A (en)
DK (1) DK87140C (en)
FR (1) FR1107933A (en)
GB (1) GB766905A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2630253A1 (en) * 1988-04-19 1989-10-20 Alsthom METHOD FOR IMPROVING THE FIRE RESISTANCE OF A DRY ELECTRICAL TRANSFORMER
FR2630578A1 (en) * 1988-04-22 1989-10-27 France Transfo Sa ENROBE DRY DRY PROCESSOR WITH IMPROVED FIRE AND METHOD FOR PREPARING THE COATING RESIN

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1283978A (en) * 1960-12-29 1962-02-09 Acec Feed-through for electrical devices
US3386059A (en) * 1965-10-21 1968-05-28 Sigma Instruments Inc Power line coupling device
FR1504469A (en) * 1966-04-29 1967-12-08 Cie Centrale D Etudes Ind Linear induction device for low voltage power supply
US4312123A (en) * 1979-03-12 1982-01-26 Interpace Corporation Methods of making high voltage electrical insulators and oil-less bushings
EP0571319B1 (en) * 1992-04-03 1996-06-12 MOSER-GLASER & CO. AG Bar core current transformer
CN106463216B (en) * 2014-05-12 2019-02-26 西门子公司 Bushing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1759419A (en) * 1926-03-02 1930-05-20 American Brown Boveri Electric Condenser bushing
US2086078A (en) * 1933-06-20 1937-07-06 Haefely Emil High tension electric insulating bushings of the condenser type
GB449868A (en) * 1935-01-01 1936-07-01 Standard Telephones Cables Ltd Improved method of and means for terminating electric cables
US2272615A (en) * 1937-10-26 1942-02-10 Int Standard Electric Corp Electric cable
US2287201A (en) * 1937-11-24 1942-06-23 Int Standard Electric Corp Electrical stress grading device
FR888061A (en) * 1942-03-06 1943-12-02 Comp Generale Electricite Improvements in the construction of feedthrough terminals and capacitor type cable end boxes
FR1032118A (en) * 1950-03-20 1953-06-30 Oerlikon Maschf Instrument transformer
US2651670A (en) * 1951-04-13 1953-09-08 Gen Electric High-voltage pothead with stress distributing means

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2630253A1 (en) * 1988-04-19 1989-10-20 Alsthom METHOD FOR IMPROVING THE FIRE RESISTANCE OF A DRY ELECTRICAL TRANSFORMER
EP0338476A1 (en) * 1988-04-19 1989-10-25 Gec Alsthom Sa Method for improving the fire resistance of a dry-type transformer winding
FR2630578A1 (en) * 1988-04-22 1989-10-27 France Transfo Sa ENROBE DRY DRY PROCESSOR WITH IMPROVED FIRE AND METHOD FOR PREPARING THE COATING RESIN

Also Published As

Publication number Publication date
DK87140C (en) 1959-04-13
US2945912A (en) 1960-07-19
FR1107933A (en) 1956-01-06

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