GB766905A - Improvements relating to the insulation of high-voltage electrical apparatus - Google Patents
Improvements relating to the insulation of high-voltage electrical apparatusInfo
- 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
Links
- 238000009413 insulation Methods 0.000 title abstract 5
- 229920003002 synthetic resin Polymers 0.000 abstract 4
- 239000000057 synthetic resin Substances 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 3
- 238000004804 winding Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000012212 insulator Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000012815 thermoplastic material Substances 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
- Transformers For Measuring Instruments (AREA)
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.
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)
| 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)
| 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 |
| WO2015172806A1 (en) * | 2014-05-12 | 2015-11-19 | Siemens Aktiengesellschaft | High-voltage feedthrough |
Family Cites Families (8)
| 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 |
-
1954
- 1954-06-14 US US436656A patent/US2945912A/en not_active Expired - Lifetime
- 1954-06-15 DK DK194054AA patent/DK87140C/en active
- 1954-06-15 GB GB17513/54A patent/GB766905A/en not_active Expired
- 1954-06-15 FR FR1107933D patent/FR1107933A/en not_active Expired
Cited By (3)
| 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 |
|---|---|
| US2945912A (en) | 1960-07-19 |
| FR1107933A (en) | 1956-01-06 |
| DK87140C (en) | 1959-04-13 |
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