GB1157390A - Pressure Balancing Conservator for Oil-filled Transformers - Google Patents
Pressure Balancing Conservator for Oil-filled TransformersInfo
- Publication number
- GB1157390A GB1157390A GB49517/67A GB4951767A GB1157390A GB 1157390 A GB1157390 A GB 1157390A GB 49517/67 A GB49517/67 A GB 49517/67A GB 4951767 A GB4951767 A GB 4951767A GB 1157390 A GB1157390 A GB 1157390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cell
- oil
- air
- conservator
- water
- 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
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
1,157,390. Transformers. S. NAKAZAWA, and T. NAKAZAWA. 31 Oct., 1967 [26 Dec., 1966], No. 42517/67. Heading H1T. The upper surface 8 of an expansible cell 4 in the oil-conservator for an oil-filled transformer is made buoyant by the use of, e.g., a foam plastics portion 17 or a network of spacers and air-pockets, and air-filled tubes 19 secured by adhesive tapes 20 around the upper peripheral edge of the cell, whereby the upper surface of the cell is maintained substantially at the same level as that of oil 13 between cell 4 and the conservator casing 3 during operation of the cell, the arrangement being such that the sidewalls of the cell do not make appreciable contact with the inner surface of the casing 3. The upper surface of the cell is covered with a sheet 18 of material, e.g. synthetic rubber or resin, which is impermeable to water, oil or air, the side walls and bottom of the cell being made of the same material. The air-filled tubes 19 are of thin vinyl or metal. An undulated vinyl plate may be placed over the covering sheet 18 to collect water deposited from the air-space S and to direct the water to a well 15 from which it may be drained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11742566 | 1966-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1157390A true GB1157390A (en) | 1969-07-09 |
Family
ID=14711313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49517/67A Expired GB1157390A (en) | 1966-12-26 | 1967-10-31 | Pressure Balancing Conservator for Oil-filled Transformers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3448219A (en) |
| GB (1) | GB1157390A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934453A (en) * | 1974-10-25 | 1976-01-27 | Allmanna Svenska Elektriska Aktiebolaget | Conservator system |
| FR2413624A1 (en) * | 1977-12-28 | 1979-07-27 | Matra Engins | Electronic circuit cooling device - has expansion chamber and non-return valve to prevent air from being drawn into refrigerant vessel |
| US4253518A (en) * | 1979-01-26 | 1981-03-03 | Matra | Cooling installation working through a change in phase |
| US4609900A (en) * | 1984-06-26 | 1986-09-02 | Bruno Bachhofer | High-voltage transformer with liquid cooling |
| US5976226A (en) * | 1997-12-18 | 1999-11-02 | Bastian; Juergen | Means to ensure a minimum of gas content in liquids used for heat exchange and insulating purposes with complementary means for liquid expansion into vessels with variable volumes |
| DE19847313A1 (en) * | 1998-10-14 | 2000-05-04 | Hydac Technology Gmbh | Compensating device, suitable for use in transformers of rail vehicles |
| CN103377802A (en) * | 2012-04-13 | 2013-10-30 | 沈阳海为电力设备有限公司 | Internal metal bellow expansion oil conservator with self-protection function |
| EP2704162B1 (en) * | 2012-08-29 | 2014-11-12 | ABB Technology AG | Pressure Compensator |
| EP3021334B1 (en) * | 2013-07-09 | 2019-01-16 | Mitsubishi Electric Corporation | Conservator |
| CN103675000A (en) * | 2013-12-05 | 2014-03-26 | 常州东芝变压器有限公司 | Container for material and oil compatibility tests |
| JP7063002B2 (en) * | 2018-02-23 | 2022-05-09 | 株式会社Ihi | Coil device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3019280A (en) * | 1962-01-30 | Pressure type oil feeding tank for oil | ||
| US1088197A (en) * | 1911-12-15 | 1914-02-24 | Bbc Brown Boveri & Cie | Device on transformers for preventing the decomposition of oil by the oxygen contained in air. |
| US2034736A (en) * | 1931-06-04 | 1936-03-24 | Rca Corp | Transformer breather |
| US1944005A (en) * | 1933-02-21 | 1934-01-16 | Habirshaw Cable And Wire Corp | Pressure reservoir with fabric bag |
| US2668186A (en) * | 1948-05-28 | 1954-02-02 | Comp Generale Electricite | Electric cable with oil pressure outside the insulation |
| US3330902A (en) * | 1964-07-14 | 1967-07-11 | Nakazawa Shinji | Conservator for oil-filled transformer |
-
1967
- 1967-10-31 GB GB49517/67A patent/GB1157390A/en not_active Expired
- 1967-12-05 US US688115A patent/US3448219A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3448219A (en) | 1969-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |