DE1930472U - FIXED CONTACT FOR WITHDRAWABLE SWITCHGEAR. - Google Patents

Description

Dingwerk Lichte und Kraft ° Aktiengesellschaft ^: »Munich

Sweeping contacts for withdrawable switchgear:

The "innovation concerns a: fixed contact for a-aBfahrbare Sehalt"_device-s'"are formed by the branches of preferably multi-pin ₉ through the switching cells ■ switchgear guided through · Sammelsehienen ,, where ^^ ©. '" Sammelschiiine -.- froM' - Is composed of isolated sections and the connection point = Ie on the rear wall of the cell where it is attached to a frame via an insulator _o ; - _; .: - ·

The Verwendung'-on and extendable switchgear 'in Sehaltan = · lay requires easily removable electrical connection between the relay and the remaining electrical system _β The circuit breakers used this equipment in ^ therefore proposed? mainly equipped with plug-in contacts that make it possible, " _v

to remove the circuit breaker from the electrical system c, dal? it also functions as an isolating switch

■ "■" ■ _ 2 ~ '■ "■■ -' ■■ - takes over and, if necessary, can be set · = · in another ¹ _{position 0} In most cases" earth-n from the circuit breakers the outgoing of common _s leading through several cells multipolar cable Samraelschieisen "feeders connected ■ the -kaufe in time reduced from" measurements d $ r teistungsschälter fiihrte in at least consistent AusselialtiieistuBg dasti ₅ auch'den .Hatab'.edarf for iibrigsn! Peile the switching cells to-reduced ^ um. To "switch cells with smaller space requirements to come" ₀ ~ The promotion also applies to the "busbars" which are attached to the grounded 2-cell rear wall ₉ or the frames of which are insulated and fastened

A well-known switchgear with cast-resin-insulated switchgear units has Saromel rails with fixed contacts that are arranged one above the other and offset in depth _? the connections for di $ extendable lieistungsschaiter form _o Since the on-propelled = cash 'are circuit breakers mounted .Kontakte in a plane-masses Festkoiitakte' of the outer ^busbars: over-middle busbar be arranged _o There are "DA, here two different versions of Fe s'tk on takten erf order "borrowed j, whereby a considerable effort is necessary for the permanent contacts, the external collective lines" (publication of "Voigt & Haeffner II" 75 · 2765 i "5063 Gth ). It is also known _? the. To use the joints of insulated busbars as a branch at the same time and · the bare parts with a two-part insulating housing surrounded -The whole is attached to a post insulator which is attached to the rear wall of the formwork ο This branch requires at least two Sp-lierstofftsile and is also not suitable as a junction for from · = "mobile switches» (/ Gbm 1 891 847),

The Heu'eruBg is Sie'Aufgabe, sugrunde a eiaf surface S ^ schienenabä tilt with 'a fixed contact for' extensible switching "gerät® au create the same design fiir all ■ (. £ tia £ s tone stacked three-phase S suitable "?" This task <solved ill, according .indem de.r ruBg the fixed contact as a link from SWEi Saramelschienen "■ Teilstiicken used '' which is a -Kontaktoberteil boei ^{^;,} molded init ■■ _..- Mdsserkontakt together with a contact base clamp the preferably circular busbars between them and the contact base is attached to an insulating part designed as an insulating part. " -Frraige covering: of the fixed contact and the busbars _? the © inen opposite bare bus · = 'rails irrriBgdern distance, made possible In the casting nuts for securing the insulating part and the lower contact part are cast in »:"""'■"": ■

The 'drawing shows the need to explain ■ "th of innovation" * Üg _e 1, the' front view of a three * "pole, Saiömelschiene with the three Abg ^ eigiingea for one, from" -.-. ■ gefahreöeB breaker dar _e In Figo 2 is the Seitenan ^. ; sees this busbar arrangement with the contacts of the switched-in circuit breaker "shown? ig _o -.3 ■■ äeigt a® busbar junction. in section AA ₀ , the Saiöiaelbars 1 have a circular cross-section and are up to ¹ on dia .Klewmste- lr- Ie with an insulating jacket 2 UbSrAOKeKp The connection of the SaRiinelschienen ^ iilstücice 1. is made via the contact lower part M- fastened in the insulating part 5 and the screwed-on contact upper part 5 _- which has a blade contact 6 in the middle;

. ; ■. ■■■■■■■ ■. ;. · - 4 ■ - ■■ - ■ - ■. ■■.: ■■■■■: ■ "- ■" ■ " _x -_. R. · ■■" /

The one for the electrical connection of the -Saramel rails. 1 ..-. And ■ of the Koiitakt upper part ^ 'required. A $ press pressure : .yvL & ß. ■ -by-'the four screws-7 applied ν oils''fastening of the' ^ OBtafctun * -. terteils takes place 4 "embedded in insulating den'im · ^5; Eingießmuttern are sunk contact bottom-8 by two screws whose heads 9 in the case of _o ^ einer.entspfieehen the Kforuag of Kontaktunterteils- 4 in insulating member 3 may be: the attachment.?. also be done by a screw 9 in the middle. The insulating part 3 has a cast / nut 11 in the foot 1o, which secures the entire junction; with the screw ΛΖ on a Ü ^ profile 1 $ serves = the upward open < ne insulating part 5 is-starting from the bare contact parts 4 and 5 on all sides so far extended _9: that despite the small dimensions of the insulating part 3 ö a very long Kriectoireg to the grounded U ^ profile 1 ^ arises ₀ The "laterally raised" ■ walls "14 reduce in addition, the air gap g'vischen be naohbarten ° Absweigungen ₉ '*? ie from the _east in Figure 1 gezeigten- comparable'"translated arrangement is visible" Bie walls 14 are so formed in the region of the knife contact that. visible in Figure 2 ₀ double knife, the 15Y! circuit breaker are fixed to the poles 16 of the partially _shown? when, Binfaliren the switch led Förden _e -. . ■

The advantage of the Heuertmg is in the particularly simple construction of Absweir; ung, which may due to their low Abaesstingeii-, a space-saving arrangement of a plurality busbars made possible, since the connection of the busbars ^ cuts at the junction on a single designed as a supporting insulator iso- = lierteil carried _ΰ The cost of such a branch should be kept comparatively low. The use of a knife contact over which a double knife is pushed

also the advantage of the contact pressure .that which, Steefc * "Therefore trodynainiseilen ele & forces high Strö · = m effectively © rhöiit trad of Koni5alcMruck the double knife only for NeiiEstrom to" compound by dimensioned "

Claims (1)

Schut claims Fixed contact for retractable. Switching devices are formed by the "branching off of" preferably multi-pole, '■ busbars passed through the switchgear cells of' switchgear assemblies, where each busbar is attached to the insulated sections "- ■ is put together and the connection point is at the back of the cell »Wall bezWe-.an a paralyze is attached via an insulator _9; marked d ti rc h the use of the plague contact, as a connection of two Sanuftel rail parts - ^; pieces (I) ₀ in which a contact upper part (5) with molded V Blade contact (6) together with a lower contact part (4) clamp the preferably circular busbars (1) between them and the lower contact part (4) is attached to an oil oil part (3) designed as a stylus oil fan _o : i Fixed contact according to claim 1 "characterized ge" ke an · = »■: ζ ..e-.i © hn et" that the insulating part (3) has a ¹ Tl-shaped envelope of the fixed contact, which is open in the direction of the blade contact (6). = 'tes and the busbar (1) forms, which compared to bare Sainmelsehienen reduced mutual distance: enables to ■ ". · ■ .- . ''-'- ■ - '' ■■■ '' .- ■ ^: ■ Fixed contact according to claim "", 1. and 2, dad u rchgeke xt.a 'draws η et that the insulating part (3) consists of a semolina harg <=> molded body ο -. - ο Fesffeontakt according to claim 1 Ms J, thereby ge =, k en »ζ ei ch η et _s that the fastening of the insulating part (3) and the contact lower part (4) takes place with the help of pouring nuts (11 and 8) «-.: