GB465237A - Improvements in and relating to the impregnation of windings of electric machines - Google Patents

Improvements in and relating to the impregnation of windings of electric machines

Info

Publication number
GB465237A
GB465237A GB20086/36A GB2008636A GB465237A GB 465237 A GB465237 A GB 465237A GB 20086/36 A GB20086/36 A GB 20086/36A GB 2008636 A GB2008636 A GB 2008636A GB 465237 A GB465237 A GB 465237A
Authority
GB
United Kingdom
Prior art keywords
windings
frenkel
chalk
july
electric machines
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
GB20086/36A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB465237A publication Critical patent/GB465237A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines

Abstract

465,237. Electric insulation. FRENKEL, E. W., (trading as FRENKEL, H., [Firm of]). July 20, 1936, No. 20086. Convention date, July 19, 1935. [Class 140] Windings of electric machines such as rotor windings are impregnated with a viscous to plastic insulating mass which dries with little loss of weight, consisting of an electrically insulating base e.g. metallic oxides such as zinc oxide or titanium oxide, one or more heat conducting fillers e.g. finely powdered quartz, glass or chalk and a binding agent, e.g. a varnish formed from cellulose derivatives or natural or artificial resins. Colouring agents may be added. An example describes a composition consisting of zinc oxide, chalk, powdered quartz, lead oxide and copalwoodoil varnish. The windings are first dried to remove moisture then brushed with or immersed in the composition, if necessary using pressure or vacuum, and finally dried at temperatures between 90 and 200‹ C.
GB20086/36A 1935-07-19 1936-07-20 Improvements in and relating to the impregnation of windings of electric machines Expired GB465237A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE808147X 1935-07-19
DE465237X 1935-07-19

Publications (1)

Publication Number Publication Date
GB465237A true GB465237A (en) 1937-05-04

Family

ID=25944032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20086/36A Expired GB465237A (en) 1935-07-19 1936-07-20 Improvements in and relating to the impregnation of windings of electric machines

Country Status (2)

Country Link
FR (1) FR808147A (en)
GB (1) GB465237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421652A (en) * 1943-08-02 1947-06-03 Sprague Electric Co Electrical conductor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10008803A1 (en) * 2000-02-25 2001-09-13 Siemens Ag Electric rotary machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421652A (en) * 1943-08-02 1947-06-03 Sprague Electric Co Electrical conductor

Also Published As

Publication number Publication date
FR808147A (en) 1937-01-29

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