GB545839A - Improvements in or relating to lead-in bushings for electrical apparatus - Google Patents

Improvements in or relating to lead-in bushings for electrical apparatus

Info

Publication number
GB545839A
GB545839A GB1765640A GB1765640A GB545839A GB 545839 A GB545839 A GB 545839A GB 1765640 A GB1765640 A GB 1765640A GB 1765640 A GB1765640 A GB 1765640A GB 545839 A GB545839 A GB 545839A
Authority
GB
United Kingdom
Prior art keywords
shell
conductor
mount
insulation
bushings
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
GB1765640A
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.)
HAROLD ADAM
A Reyrolle and Co Ltd
Original Assignee
HAROLD ADAM
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 HAROLD ADAM, A Reyrolle and Co Ltd filed Critical HAROLD ADAM
Priority to GB1765640A priority Critical patent/GB545839A/en
Publication of GB545839A publication Critical patent/GB545839A/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
    • H01B17/30—Sealing
    • H01B17/303—Sealing of leads to lead-through insulators
    • H01B17/306—Sealing of leads to lead-through insulators by embedding in material other than glass or ceramics

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Insulators (AREA)

Abstract

545,839. Lead-in bushings for electrical apparatus. REYROLLE & CO., Ltd., A., and ADAM, H. Dec. 13, 1940, No. 17656. [Class 36] A lead-in bushing for electrical apparatus comprises a bent insulated conductor with a lower straight portion entering the casing and an upper straight portion at an angle thereto and surrounded by a weatherproof insulating shell, and a mounting member round the first portion with a flange for attachment to the casing and its upper end adjacent the bend in the conductor so shaped that the insulating shell is held at the appropriate angle. In Fig. 1, the conductor A has insulation B moulded or formed of wound and vulcanized rubber-compound tape, or of impregnated paper, or as described in Specifications 515,890, or 515,891 ; the paper may be transversely or otherwise creped, wound with each turn overlapping half the previous turn and impregnated during or after winding with varnish, liquids such as hydrocarbons or halogenated hydrocarbons, polymerizable solutions such as styrene, or gases such as nitrogen, dichlorodifluoromethane &c. The insulation may include metal condenser layers, and its lower part may have a metallized surface C around which the flanged metal mount D fits ; the mount has an inclined upper face supporting packing E<1> against which abuts a porcelain shell E slightly spaced from the conductor to receive insulating compound G inserted under pressure, a metal cap F, with packing F<1> being held by a nut F<2> screwed on the end of the conductor. In a three-phase circuit-breaker, the six bushings are arranged in two rows with their upper ends diverging ; slightly inclined facings may be provided to receive the mounts. In Fig, 3, the shell E is received within the inclined upper end of the mount D, within which cement H and packing E3 are placed; the insulation B has a shoulder forming an abutment for the shell E. Alternatively, the shell may fit round an inclined cylindrical part of the mount.
GB1765640A 1940-12-13 1940-12-13 Improvements in or relating to lead-in bushings for electrical apparatus Expired GB545839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1765640A GB545839A (en) 1940-12-13 1940-12-13 Improvements in or relating to lead-in bushings for electrical apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1765640A GB545839A (en) 1940-12-13 1940-12-13 Improvements in or relating to lead-in bushings for electrical apparatus

Publications (1)

Publication Number Publication Date
GB545839A true GB545839A (en) 1942-06-16

Family

ID=10098958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1765640A Expired GB545839A (en) 1940-12-13 1940-12-13 Improvements in or relating to lead-in bushings for electrical apparatus

Country Status (1)

Country Link
GB (1) GB545839A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007073322A1 (en) * 2005-12-23 2007-06-28 Abb Technology Ltd. A method for manufacturing a post insulator and a post insulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007073322A1 (en) * 2005-12-23 2007-06-28 Abb Technology Ltd. A method for manufacturing a post insulator and a post insulator
US7943853B2 (en) 2005-12-23 2011-05-17 Abb Technology Ltd. Method for manufacturing a post insulator and a post insulator

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