US996878A

US996878A - Insulating-bushing.

Info

Publication number: US996878A
Application number: US5?43?009A
Authority: US
Inventors: Louis C Nichols
Original assignee: Allis Chalmers Corp
Current assignee: Allis Chalmers Corp
Publication date: 1911-07-04
Anticipated expiration: 1928-07-04

Description

3G MPA to ho used in electric Cirous wilh rzmsforineis.

lt is a Woll known fact thai; static alischnrgos taking plac-"3 from this surf?. zes o' insulation of high poien'izil apparatus, such. for example, as high 'Voltage lurmns'fornic frequently operaio to reduce the elli-dive ss o1 the insulaiion by affording :i conilucin Y path 'for the formation ofn nu: hotwenn e?? posed portions of ihe apparatus between which a high difference oi' poton'inl may m;- ist, ,as heween in exnosoil iran ,f nxinzil and tho iran, orinar mi 'rnvorsing :i siiiio brush ilisrlinrL 1' A on tho surface ol? thi? insulation sin'rouii\ l ing the iorminzll. This uni'losirnhl rsul may be prevuntoil by inlerposing nienihors imi of insulating' material, in ihr: path which would oihefwiso he followed by ihn arc, 3G those members noting io inlorrupt ilv tinuity oi th brush discharge :unl i i. the Coniinuityof ho conduoiiig 'l ed by it.

It is the ohjoct oi my ijnvenfion to .profiilof an iinpi'ovecil bushing; to he nsfsil in connection with oleciriczil appara@ .4 l`his ooinplishocl hy providing 22") sectional y formed oilillcd bushing comprising z; serias of iuinizlar disks of insulmingg' n'iaisrial hohl together in a novel manner.

My invention further consists in certain novel details of construction unil arrangement of parts to he described in ih@ follow ing speciicziiion and particularly poinioil out in the appended claims.

In the accompanying shco of (h'zmvings, Figure l is un elevziion, with mr's l -i O'() away and in section, showing a; por'ion D5 a transformer Casing through whim passes my improved oil-filled hnshiiib', 12 an enlarged elevation, partly in seolri of n portionof the 0il-fillecl bshing showing the arrangement of means for holding togethor vthe insulating members of Said ii-Shing; Fig. 3 is a. top eiomtion of that shown in :imi more spo 1 Ciicallj/ to bushings no he u 3ki in conneoiion along' this visas zi plm croepzig'asurface. is provided. The bushing;y is i do oil roiiininff hy @"awinrq' tho disks comprising the lm: lV iOGiher by monihors such :is t

'Uroly ihrem no. :lis:A

i fi *rho ofzcoption of the is provided with 0 opi-@ninos passes i ino o l( .i'hile the other i voy Lhrough the disk fr :n cw which passes @lf of the s: ninnnor in d together.

gli

ai A second conclncio not mechaniozil i nluctor 525() ly on of ih@ cV l 1 um which s r 20 passes. @Lio @hier gnocl .insulating and Wli f means of this f -bo icio y 'cly illed. with some insulating liquid u ing a bushing to withstand exy high voltages. s compact and practically solid oilinsuiating bushing is particularly fl for use in heavy voltage circuits .i be made for use in circuits of any "*otage by merely changing the disks employed. e be many modifications in the form and arrangement herein shown lied, and l aim in my claims to all such modifications which do not departure from vthe spirit and my intention. t l claim as new is: -e con'ibination with a conductor forming part of high potential electric app: nuts, of insulating material ,around said ructor, and an oil-retaining insulating inclosing said-conductor, said bushing iat disks and separate means lioluing together saidudisks.

The combination with a conductor ling part of high potential electric apntus, of solid insulating material around conductor, and an oil-lled insulating ensuing inclosing said conductor, said bushcomprising dat disks and separate means including a plurality of axially extending for holding together said disks.

3. [ian insulating bushing formed of a iiumber of annular d" 'ks of insulating mate iai, and means including a plurality of members having different axes and cach exding axially of said bushingv for holding to ther :aid annular disks.

n combination, a bushing comprising ir insulating members and retaining iding moreltlian two bodies each axially of said bushing, and a axigll located in said bushing om the walls thereof by an nting liquidi in combination, a bushing comprising annular insulating members, means Darn from said members for retaining them, id a conduct-or axially located in saidbushing and separated from. the Walls thereof by an insulating liquid and an in?" isolating member. I

#(5. in oiliilled insulating bushing formed ins e? v I :$6,878

of a' plurality ofrannular members of insulating material, and metal members each extending axially of said bushing for holding together said annular members.

7. An insulating bushing formed of a number of insulating disks, and means separate from said disks-ffor holding together said disks, said means comprising axially extending bodies having parallel axes, each of said bodies being located in two disks.

8. An oil-lled insulating bushing formed of a number of disks of insulating material, and means separate from said members for holding together said disks, said means com prising axially extending bodies each located in adjacent' disks.

9. ln combination, a bushing comprising annular insulating members held together by means separate from said members, and a conductor axially located in said bushing and separated therefrom by spirally wound insulating material within said bushing.

l0. In combination, a bushing comprising flat annular insulating-disks held together by threaded members, and a conductor axially located in said bushing and separated therefrom by insulating paper and liquid.

1l. An insulating bushing formed of a series of flat similar insulating disks, and means comprising axially extending members for holding together said disks, the axes of said members being parallel.

l2. The combination with a conductor forming` a part of high potential electric apparatus, of oil and insulating paper wound spirally around said conductor, and an insulating bushing inclosing said conductor, said bushing comprising insulating disks, axially extending members for holding together saidvdisks, and a metal cap engaging said conductor at one end of said bushing completing an electric circuit.

Milwaukee, lVisconsin, October 13, 1909.

in testimony whereof I aflix my signature, in the presence of two witnesses.

Louis o. menons.

Witnesses:

CHAs. L. BYRON, Ro. E. SroLL.