GB1252159A - - Google Patents
Info
- Publication number
- GB1252159A GB1252159A GB1252159DA GB1252159A GB 1252159 A GB1252159 A GB 1252159A GB 1252159D A GB1252159D A GB 1252159DA GB 1252159 A GB1252159 A GB 1252159A
- Authority
- GB
- United Kingdom
- Prior art keywords
- castor oil
- film
- dielectric
- housing
- capacitor
- 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
- 239000003990 capacitor Substances 0.000 abstract 3
- 239000004359 castor oil Substances 0.000 abstract 2
- 235000019438 castor oil Nutrition 0.000 abstract 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 abstract 2
- 238000005470 impregnation Methods 0.000 abstract 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 abstract 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 abstract 1
- 229920000098 polyolefin Polymers 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G4/221—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated characterised by the composition of the impregnant
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
1,252,159. Capacitors. GENERAL ELECTRIC CO. 14 Nov., 1968 [11 Dec., 1967], No. 54136/68. Heading H1M. The polyolefin film dielectric of a capacitor is essentially completely impregnated with castor oil. "Essentially complete impregnation" is defined in the Specification. The dielectric may also include a strip of porous material. A wound capacitor, preferably comprising biaxially oriented polypropylene film is placed in a housing, the housing evacuated, castor oil introduced and the temperature raised to above 90‹ C.. for a time sufficient for essentially complete impregnation of the film, and then reduced prior to sealing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68936267A | 1967-12-11 | 1967-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1252159A true GB1252159A (en) | 1971-11-03 |
Family
ID=24768119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1252159D Expired GB1252159A (en) | 1967-12-11 | 1968-11-14 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5526609B1 (en) |
| CH (1) | CH488265A (en) |
| DE (1) | DE1813371C3 (en) |
| ES (1) | ES361172A1 (en) |
| FR (1) | FR1594226A (en) |
| GB (1) | GB1252159A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN139569B (en) * | 1972-08-16 | 1976-07-03 | Gen Electric | |
| JPS5213623B2 (en) * | 1973-06-01 | 1977-04-15 | ||
| DE2640685A1 (en) * | 1975-09-10 | 1977-03-24 | Mc Graw Edison Co | METHOD OF TREATMENT OF AN ELECTRICAL DEVICE |
| DE2844593A1 (en) * | 1978-10-13 | 1980-04-17 | Standard Elektrik Lorenz Ag | Vacuum impregnation of electric capacitors - where ultrasonic vibration is used after releasing the vacuum to reduce impregnation time |
| US4521826A (en) * | 1980-02-25 | 1985-06-04 | Emhart Industries, Inc. | Dielectric fluid for a compacitor |
| CA1153194A (en) * | 1980-09-08 | 1983-09-06 | Vandos Shedigian | Non-toxic impregnant for electrical capacitors |
| DE3036692C2 (en) * | 1980-09-29 | 1986-12-18 | Shizuki Electric Co., Inc., Nishinomiya, Hyogo | Gas-impregnated wound capacitor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2858492A (en) * | 1955-11-14 | 1958-10-28 | Sprague Electric Co | Electrical capacitors |
| GB942293A (en) * | 1961-06-06 | 1963-11-20 | British Insulated Callenders | Improvements in or relating to electric capacitors |
| SE355689B (en) * | 1965-11-18 | 1973-04-30 | Gen Electric | |
| US3340446A (en) * | 1966-05-24 | 1967-09-05 | Gen Electric | Electrical capacitor |
-
1968
- 1968-11-14 GB GB1252159D patent/GB1252159A/en not_active Expired
- 1968-11-27 CH CH1768668A patent/CH488265A/en not_active IP Right Cessation
- 1968-12-06 ES ES361172A patent/ES361172A1/en not_active Expired
- 1968-12-07 DE DE19681813371 patent/DE1813371C3/en not_active Expired
- 1968-12-09 FR FR1594226D patent/FR1594226A/fr not_active Expired
- 1968-12-11 JP JP9030768A patent/JPS5526609B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1813371B2 (en) | 1980-11-20 |
| DE1813371C3 (en) | 1981-07-23 |
| JPS5526609B1 (en) | 1980-07-15 |
| ES361172A1 (en) | 1970-10-16 |
| CH488265A (en) | 1970-03-31 |
| DE1813371A1 (en) | 1969-07-17 |
| FR1594226A (en) | 1970-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |