GB539587A - Improvements in or relating to electric insulators including stress-grading condenser layers - Google Patents

Improvements in or relating to electric insulators including stress-grading condenser layers

Info

Publication number
GB539587A
GB539587A GB487640A GB487640A GB539587A GB 539587 A GB539587 A GB 539587A GB 487640 A GB487640 A GB 487640A GB 487640 A GB487640 A GB 487640A GB 539587 A GB539587 A GB 539587A
Authority
GB
United Kingdom
Prior art keywords
layer
grading
layers
path
draining
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
Application number
GB487640A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Priority to GB487640A priority Critical patent/GB539587A/en
Publication of GB539587A publication Critical patent/GB539587A/en
Expired legal-status Critical Current

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
    • H01B17/28—Capacitor type

Abstract

539,587. Insulators. REYROLLE & CO., Ltd., A., and KIRKWOOD, I. W. A. March 15, 1940, No. 4876. [Class 36] An insulator having stress-grading layers C embedded in the insulating material and a thicker layer D connected to the exterior, for draining surge current, has this layer shielded by the adjacent stress-grading layer, and a conductive path F is provided between them for draining the normal capacity current. In addition, a distributed path, for example capacitative, is provided of suitable impedance for taking the high-frequency surge current. In the example the layer D is directly connected to the earthed support H and the path F may be constituted by a high resistance metallic strip wound in with the insulating paper &c. the distributed path between the grading layer and the layer D may be formed by mixing conductive material with the insulation between these layers or a material may be used with a negative voltage-coefficient of resistance. Similar surge-draining layers and arrangements may be provided at places in the insulator other than the outside, as indicated at D <6>, D<7>.
GB487640A 1940-03-15 1940-03-15 Improvements in or relating to electric insulators including stress-grading condenser layers Expired GB539587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB487640A GB539587A (en) 1940-03-15 1940-03-15 Improvements in or relating to electric insulators including stress-grading condenser layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB487640A GB539587A (en) 1940-03-15 1940-03-15 Improvements in or relating to electric insulators including stress-grading condenser layers

Publications (1)

Publication Number Publication Date
GB539587A true GB539587A (en) 1941-09-17

Family

ID=9785483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB487640A Expired GB539587A (en) 1940-03-15 1940-03-15 Improvements in or relating to electric insulators including stress-grading condenser layers

Country Status (1)

Country Link
GB (1) GB539587A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180485A1 (en) 2008-10-27 2010-04-28 Abb Research Ltd. High-voltage bushing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180485A1 (en) 2008-10-27 2010-04-28 Abb Research Ltd. High-voltage bushing

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