DE68908453T2 - Process for improving the fire resistance of the winding of an electric dry transformer. - Google Patents

Process for improving the fire resistance of the winding of an electric dry transformer.

Info

Publication number
DE68908453T2
DE68908453T2 DE1989608453 DE68908453T DE68908453T2 DE 68908453 T2 DE68908453 T2 DE 68908453T2 DE 1989608453 DE1989608453 DE 1989608453 DE 68908453 T DE68908453 T DE 68908453T DE 68908453 T2 DE68908453 T2 DE 68908453T2
Authority
DE
Germany
Prior art keywords
winding
improving
fire resistance
dry transformer
electric dry
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 - Fee Related
Application number
DE1989608453
Other languages
German (de)
Other versions
DE68908453D1 (en
Inventor
Dominique Lacaze
Jacques Samat
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.)
Alstom Holdings SA
Original Assignee
GEC Alsthom SA
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 GEC Alsthom SA filed Critical GEC Alsthom SA
Application granted granted Critical
Publication of DE68908453D1 publication Critical patent/DE68908453D1/en
Publication of DE68908453T2 publication Critical patent/DE68908453T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • 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
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating
DE1989608453 1988-04-19 1989-04-17 Process for improving the fire resistance of the winding of an electric dry transformer. Expired - Fee Related DE68908453T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8805157A FR2630253A1 (en) 1988-04-19 1988-04-19 METHOD FOR IMPROVING THE FIRE RESISTANCE OF A DRY ELECTRICAL TRANSFORMER

Publications (2)

Publication Number Publication Date
DE68908453D1 DE68908453D1 (en) 1993-09-23
DE68908453T2 true DE68908453T2 (en) 1994-02-17

Family

ID=9365442

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1989608453 Expired - Fee Related DE68908453T2 (en) 1988-04-19 1989-04-17 Process for improving the fire resistance of the winding of an electric dry transformer.

Country Status (4)

Country Link
EP (1) EP0338476B1 (en)
DE (1) DE68908453T2 (en)
ES (1) ES2042855T3 (en)
FR (1) FR2630253A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110223A1 (en) * 1990-10-18 1992-04-23 Abb Patent Gmbh DRY TRANSFORMER OR THROTTLE COIL AND METHOD FOR THEIR PRODUCTION
EP3051546A1 (en) * 2015-02-02 2016-08-03 Starkstrom-gerätebau GmbH Fire resistant electric coil and power transformer using the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945912A (en) * 1953-06-15 1960-07-19 Moser Glaser & Co Ag High voltage insulator
FR1098178A (en) * 1954-01-12 1955-07-19 G Ab Assembly process by gluing and products obtained
US3263196A (en) * 1963-07-16 1966-07-26 Mc Graw Edison Co Encapsulated electrical coil having means to aid impregnation
US3427189A (en) * 1965-03-10 1969-02-11 Atomic Energy Commission Radiation resistant insulation
DE2541670C2 (en) * 1974-09-19 1986-09-04 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Electrical coil encapsulated in synthetic resin
DE2530388B1 (en) * 1975-07-08 1976-12-16 Elsic Elek Sche Sicherheitsaus Fire retardant, electrically insulating mouldings - comprise self extinguishing polyester resin, glass and or asbestos fibre reinforcement and aluminium hydroxide
CA1104292A (en) * 1977-10-14 1981-06-30 Flamemaster Corporation (The) Fire retardant composition
GB1602970A (en) * 1978-05-31 1981-11-18 English Electric Co Ltd Three phase transformers
JPS5763816A (en) * 1980-10-06 1982-04-17 Hitachi Ltd Molded transformer coil
CA1219103A (en) * 1983-07-21 1987-03-17 Roger L. Langer Flexible fibrous endothermic sheet material for fire protection
JPS60180108A (en) * 1984-02-27 1985-09-13 Sanyurejin Kk Manufacture of flyback transformer

Also Published As

Publication number Publication date
EP0338476A1 (en) 1989-10-25
FR2630253A1 (en) 1989-10-20
ES2042855T3 (en) 1993-12-16
EP0338476B1 (en) 1993-08-18
DE68908453D1 (en) 1993-09-23

Similar Documents

Publication Publication Date Title
DE69021142D1 (en) Method of making electrical contact.
DE69002828D1 (en) METHOD FOR DETECTING ELECTRICAL LADDERS.
DE3382669D1 (en) METHOD FOR REDUCING THE CONVERGENCE TIME OF AN ECHOCOMPENSATOR.
AT377227B (en) METHOD FOR INSULATING PIPES
AT374762B (en) DEVICE FOR CLAMPING TUBULAR CORE
DE58906247D1 (en) Masses suitable for coating the surface of electrical high-voltage insulators.
DE3688461T2 (en) METHOD FOR PRODUCING A SUPRAL-CONDUCTING ELECTRIC CONDUCTOR.
DE3682568D1 (en) METHOD FOR PRODUCING ELECTRIC THICK FILM COMPONENTS.
JPS5495703A (en) Wood treating method
ATE4357T1 (en) DEVICE FOR TERMINATING AN ELECTRIC MULTI-CONDUCTOR CABLE.
NO144294C (en) PROCEDURE, AND WINDING EQUIPMENT
DE68908453T2 (en) Process for improving the fire resistance of the winding of an electric dry transformer.
DE58909777D1 (en) Method of manufacturing an insulated container
AT374402B (en) DEVICE FOR REDUCING THE DIAMETER OF ROUND WOODS
IT1148895B (en) PROCESS AND EQUIPMENT FOR DRYING VENEER SHEETS
AT389190B (en) ELECTRICAL ENERGY STORAGE SYSTEM AND IMPROVED METHOD FOR PRODUCING HALOGEN HYDRODATE
IT8147787A0 (en) PIPERAZINE COMPOUNDS: PROCEDURE FOR PREPARING THEM AND THEIR USE
ATA184182A (en) DEVICE FOR APPLYING AN INSULATING COATING
JPS52107111A (en) Crack preventive method of wood
DE59204779D1 (en) METHOD FOR PRODUCING ELECTRIC CONTACT RIVETS
JPS568368A (en) Benzimidazole derivative
JPS5215121A (en) Wood connection method that use embedded nut for wood
IT1174312B (en) PROCEDURE AND EQUIPMENT FOR PROFILING METAL SHEETS
DE9007704U1 (en) Device for automatically calculating the integrity of an electrical coil
GB2066468B (en) Method and apparatus for testing wooden poles

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee