GB769884A - Improvements in or relating to bushing insulators for electrical apparatus - Google Patents
Improvements in or relating to bushing insulators for electrical apparatusInfo
- Publication number
- GB769884A GB769884A GB1792655A GB1792655A GB769884A GB 769884 A GB769884 A GB 769884A GB 1792655 A GB1792655 A GB 1792655A GB 1792655 A GB1792655 A GB 1792655A GB 769884 A GB769884 A GB 769884A
- Authority
- GB
- United Kingdom
- Prior art keywords
- insulator
- tube
- bushing
- conductor
- sealed
- 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
- 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
- H01B17/30—Sealing
- H01B17/303—Sealing of leads to lead-through insulators
- H01B17/308—Sealing of leads to lead-through insulators by compressing packing material
Landscapes
- Insulators (AREA)
Abstract
769,884. Insulators. REYROLLE & CO., Ltd., A. June 21, 1955, No. 17926/55. Addition to 733,044. Class 36. An oil-impregnated bushing insulator B surrounding a conductor A is sealed from the surrounding medium by an oil-impervious envelope including a rigid insulating tube F, sealed at its open end and embracing a tapered end of the insulator, and a thin skin D enclosing the remainder of the insulator and sealed to the tube F. The tube F may be rigidly supported on the conductor A by means of a plug G having a flange G<SP>1</SP> fitting closely within the tube F and a hollow, internally threaded boss G<SP>2</SP> receiving a nut H to compress a sealing washer H<SP>1</SP>. Alternatively the tube may be supported by the insulator B. A tube F may be provided at each end of the bushing, and the bushing may include stress-grading metal layers and be straight or U-shaped, as shown, the latter being for the carrying of current transformers. The skin D may be rigidly supported by and closely surround the insulator, or may be flexible and loosely enclose the insulator. Means, such as an air-filled bag within the conductor A, may be provided to allow for variations in the volume of the oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1792655A GB769884A (en) | 1955-06-21 | 1955-06-21 | Improvements in or relating to bushing insulators for electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1792655A GB769884A (en) | 1955-06-21 | 1955-06-21 | Improvements in or relating to bushing insulators for electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB769884A true GB769884A (en) | 1957-03-13 |
Family
ID=10103667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1792655A Expired GB769884A (en) | 1955-06-21 | 1955-06-21 | Improvements in or relating to bushing insulators for electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB769884A (en) |
-
1955
- 1955-06-21 GB GB1792655A patent/GB769884A/en not_active Expired
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