GB1191299A - Improvements in or relating to processes for the Manufacture of Impregnated Electrical Capacitors - Google Patents
Improvements in or relating to processes for the Manufacture of Impregnated Electrical CapacitorsInfo
- Publication number
- GB1191299A GB1191299A GB58368/67A GB5836867A GB1191299A GB 1191299 A GB1191299 A GB 1191299A GB 58368/67 A GB58368/67 A GB 58368/67A GB 5836867 A GB5836867 A GB 5836867A GB 1191299 A GB1191299 A GB 1191299A
- Authority
- GB
- United Kingdom
- Prior art keywords
- swelling
- impregnant
- dielectric
- capacitor
- dec
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/20—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
- H01G4/22—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated
Abstract
1,191,299. Capacitors. SIEMENS A.G. 22 Dec., 1967 [23 Dec., 1966], No. 58368/67. Heading H1M. The dielectric in an impregnated wound capacitor comprises foils of plastics material which is swollen by the impregnant. The swelling of the dielectric fills up gaps which would otherwise be filled with the impregnant and have lower breakdown resistance. The tightness of the capacitor roll may be controlled so that swelling does not interfere with impregnation. Alternatively impregnation may be carried out at a low temperature when the rate of swelling is low, and the temperature then raised to accelerate swelling. The dielectric material may be polypropylene; the impregnant insulating oil containing 15 to 20% aromatic constituents, 30% naphthenes and 50 to 60% paraffins. The electrodes may compries foils of insulating material such as paper metalized on both sides, the insulating material accordingly lying in the field-free space of the capacitor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1564792A DE1564792C3 (en) | 1966-12-23 | 1966-12-23 | Impregnated electrical capacitor with a plastic film as a dielectric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1191299A true GB1191299A (en) | 1970-05-13 |
Family
ID=7528194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB58368/67A Expired GB1191299A (en) | 1966-12-23 | 1967-12-22 | Improvements in or relating to processes for the Manufacture of Impregnated Electrical Capacitors |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE708428A (en) |
| CH (1) | CH482279A (en) |
| DE (1) | DE1564792C3 (en) |
| ES (1) | ES348497A1 (en) |
| GB (1) | GB1191299A (en) |
| NL (1) | NL147569B (en) |
| SE (1) | SE402835B (en) |
| YU (1) | YU36410B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068286A (en) * | 1972-12-27 | 1978-01-10 | Matsushita Electric Industrial Co., Ltd. | Oil-impregnated polypropylene capacitor |
| US4121274A (en) * | 1976-04-30 | 1978-10-17 | Siemens Aktiengesellschaft | Self-healing electrical capacitor and method for its production |
| US4262322A (en) | 1978-06-20 | 1981-04-14 | Siemens Aktiengesellschaft | Impregnated electric capacitor |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3854182A (en) * | 1971-02-25 | 1974-12-17 | Bosch Gmbh Robert | Process for manufacturing electrical condensers |
| US3900774A (en) * | 1972-12-28 | 1975-08-19 | Matsushita Electric Ind Co Ltd | Oil-impregnated capacitor |
| GB1468511A (en) * | 1973-06-06 | 1977-03-30 | Johnson Philllips Ltd | Capacitor manufacture |
| SE373974B (en) * | 1973-06-20 | 1975-02-17 | Asea Ab | |
| DE2640685A1 (en) * | 1975-09-10 | 1977-03-24 | Mc Graw Edison Co | METHOD OF TREATMENT OF AN ELECTRICAL DEVICE |
| DE3029326A1 (en) * | 1980-08-01 | 1982-02-18 | Ero-Starkstrom Kondensatoren Gmbh, 8300 Landshut | Impregnated winding capacitor |
-
1966
- 1966-12-23 DE DE1564792A patent/DE1564792C3/en not_active Expired
-
1967
- 1967-07-21 CH CH1799067A patent/CH482279A/en not_active IP Right Cessation
- 1967-10-02 NL NL676713373A patent/NL147569B/en unknown
- 1967-12-18 YU YU02465/67A patent/YU36410B/en unknown
- 1967-12-21 ES ES348497A patent/ES348497A1/en not_active Expired
- 1967-12-22 GB GB58368/67A patent/GB1191299A/en not_active Expired
- 1967-12-22 BE BE708428D patent/BE708428A/xx unknown
-
1975
- 1975-05-20 SE SE7505726A patent/SE402835B/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068286A (en) * | 1972-12-27 | 1978-01-10 | Matsushita Electric Industrial Co., Ltd. | Oil-impregnated polypropylene capacitor |
| US4121274A (en) * | 1976-04-30 | 1978-10-17 | Siemens Aktiengesellschaft | Self-healing electrical capacitor and method for its production |
| US4262322A (en) | 1978-06-20 | 1981-04-14 | Siemens Aktiengesellschaft | Impregnated electric capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CH482279A (en) | 1969-11-30 |
| NL6713373A (en) | 1968-06-24 |
| DE1564792B2 (en) | 1971-06-16 |
| YU246567A (en) | 1981-11-13 |
| SE7505726L (en) | 1975-05-20 |
| DE1564792A1 (en) | 1970-09-10 |
| BE708428A (en) | 1968-06-24 |
| SE402835B (en) | 1978-07-17 |
| YU36410B (en) | 1983-06-30 |
| ES348497A1 (en) | 1969-03-01 |
| DE1564792C3 (en) | 1979-01-04 |
| NL147569B (en) | 1975-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |