SE191360C1

SE191360C1 -

Info

Publication number: SE191360C1
Application number: SE588159A
Authority: SE
Original assignee: David Olof Haegglund
Priority date: 1963-08-08
Filing date: 1959-06-22
Publication date: 1964-09-15
Also published as: BE636106A; GB1060292A; DE1267310C2; DE1267310B; SE191366C1; NL296554A

Description

Uppfinnare: T Bergman Foreliggande uppfinning avser en kontaktor, som ãr avsedd att anvandas i samband med smaltsakringar. Inventor: T Bergman The present invention relates to a contactor which is intended to be used in connection with fuse rings.

Nar ett stort antal kontaktorer skola sammanf5ras till en manoverenhet i en elektrisk anlaggning och dessa kontaktorer samtidigt seriekopplas med var sin sakring resp. vid trefasanlaggningar med var sina tre sakringar, krava kontaktorerna och sakringarna ett ratt stort utrymme. Man kan givetvis koncentrera sakringarna pa en sarskild gemensam sakringstavla dock liar denna losning den nackdelen, att manOverenheten blir °overskadlig, eftersom det icke är tydligt, vilka sakringar tillhOra en viss bestamd kontaktor, dvs. samh5rande kontaktorer och sakringar bora fi3rses med sarskilda markeringar for att underlatta eftersokningen vid uppkomst av fel. Dessutom kraver den separata placeringen av kontaktorerna och sakringarna synnerligen langa forbindelseledningar, som utgor 5kade monteringskostnader och risk for driftsstorningar vid ledningsfel. When a large number of contactors are to be combined into a control unit in an electrical installation and these contactors are simultaneously connected in series with their respective fuses or in the case of three-phase systems, each with its three fuse rings, the contactors and fuse rings require a large amount of space. It is of course possible to concentrate the fuses on a special common fuse board, but this solution has the disadvantage that the control unit becomes harmless, since it is not clear which fuses belong to a certain specific contactor, ie. associated contactors and fuses should be provided with special markings to facilitate the search for faults. In addition, the separate placement of the contactors and fuse rings requires extremely long connecting lines, which constitute increased installation costs and the risk of operational disturbances in the event of line faults.

Dessa nackdelar elimineras och det av sakringarna upptagna utrymmet inhesparas till storsta delen i huvudsak genom att kontaktorns rorliga kontaktorgan är anordnat att samverka med ett faststaende kontaktorgan pa en smaltsakring, som ãr seriekopplad med det rorliga kontaktorganet. These disadvantages are eliminated and the space occupied by the fuse rings is largely saved mainly by the movable contact means of the contactor being arranged to cooperate with a fixed contact member on a fuse ring, which is connected in series with the movable contact member.

Uppfinningen forklaras narmare i samband med bifogade ritning, som visar tva olika utforingsformer sasom exempel pa uppfinningen. Fig. 1 visar en kontaktor med manovermekanism och tre sakringar, sedd framifran. Fig. 2 visar kontaktorn enligt fig. 1 sedd fran sidan och i tillslaget lage. Fig. 3 visar kontaktorn enligt fig. 1 sedd fran sidan dock i franslaget lage. Fig. 4 ar ett schema av en ytterligare kontaktor med proppsakring och manovermekanism. Fig. 5 är en sektion av en sakringsbehallare till anordningen enligt fig. 4. Fig. 6a—d aro scheman for att tydlig- Ora manovermekanismens verkningssatt kontaktorn enligt fig. 4. Fig. 7 visar kontaktorn enligt fig. 4 sedd uppifran. The invention is explained in more detail in connection with the accompanying drawing, which shows two different embodiments as examples of the invention. Fig. 1 shows a contactor with operating mechanism and three safety rings, seen from the front. Fig. 2 shows the contactor according to Fig. 1 seen from the side and in the on position. Fig. 3 shows the contactor according to Fig. 1 seen from the side, however in the fringe layer. Fig. 4 is a diagram of a further contactor with plug locking and operating mechanism. Fig. 5 is a section of a fuse container for the device according to Fig. 4. Figs. 6a-d are diagrams for clarifying The actuator of the actuator according to Fig. 4 is actuated by the operating mechanism. Fig. 7 shows the contactor according to Fig. 4 seen from above.

Den i fig. 1-3 visade utforingsformen av kontaktoranordningen enligt uppfinningen är uppbyggd pa en stomme (fig. 2 och 3) med en pa dess ena kortsida fast plint 12 for kontaktorns manovermekanism. Genom stommen stracker sig en manoveraxel 14, avsedd att svanga rorliga kontaktorgan i form av knivar 16, 16'-26, 26'. Dessa knivar aro parvis anordnade som parallella skenor, vilka vid sin ena ande halles anliggande mot pa stommen 10 fasta vinkelskenor 28, 30 (fig. 2 och 3), dar de aro svangbara kring bultar 32, 34, medan knivarna hallas med sin andra ande vid tillslagen kontaktor anliggande mot kontaktfanor 36-46 pa sakringar 48-52 me-deist till varje kontaktknivpar hOrande bultar 54 och brickfjadrar 56, 58. Om sa erfordras kunna knivarna aven fOrses med forkontaktorgan for att upptaga ljusbagar mellan knivarna och sakringsfanorna. Kontaktknivarna aro sammankopplade medelst tvarslaar 60 resp. 62 av isolermaterial, vilka i sin tur aro kopplade med manoveraxeln 14 medelst lankar 64-70 samt pa manoveraxeln fasta dubbelarmar 72, 74. The embodiment of the contactor device according to the invention shown in Figs. 1-3 is built on a body (Figs. 2 and 3) with a terminal 12 fixed to one of its short sides for the contactor operating mechanism of the contactor. Extending through the body is a maneuvering shaft 14, intended to pivot movable contact members in the form of knives 16, 16'-26, 26 '. These knives are arranged in pairs as parallel rails, which at one end are held abutting against fixed angles 28, 30 (Figs. 2 and 3) fixed to the body 10, where they are pivotable about bolts 32, 34, while the knives are held with their other end when the contactors abut against contact tabs 36-46 on fuse rings 48-52 are attached to each pair of contact knives including bolts 54 and washer springs 56, 58. If required, the knives can also be provided with pre-contact means for receiving light beetles between the knives and the fuse tabs. The contact knives are connected by means of crossbars 60 resp. 62 of insulating material, which in turn are connected to the control shaft 14 by means of lines 64-70 and double arms 72, 74 fixed on the control shaft.

Sakringarna 48-52 A.'ro lostagbart fasta pa en plint 76, som ar fbrskjutbar i styrhakar 78, 80, fasta pa stommen 10, sa att sakringarna kunna tillsammans med plinten 76 avlagsnas fran kontaktorn genom att plinten 76 vid franslagen kontaktor i laget enligt fig. 3 drages ut ur styrhakarna 78 och 80. Denna anordning m5jliggor riskfritt byte av sakringarna vid spanningsforande kontaktordelar. The fuses 48-52 A. are releasably attached to a terminal 76, which is slidable in guide hooks 78, 80, fixed to the body 10, so that the fuses together with the terminal 76 can be removed from the contactor by the terminal 76 at the contactor in the team according to Fig. 3 is pulled out of the guide hooks 78 and 80. This device enables risk-free replacement of the fuse rings in voltage-carrying contactor parts.

Kontaktorns manovermekanism bestar av en elmagnet 82, som an fast pa. plinten 12 och som med sin. rorliga magnetkarndel 84 paverkar en kamskiva 86 pa manoveraxeln 14 med hjalp av en mellankopplad lank 88. Pa magnetkarndelen 81 ar patradd en skruvfja- 2- - der 90, som hoptryckes vid elmagnetens 82 magnetisering och som vid stromlos elmagnet stravar att fOra magnetkarnan 84 frau laget enligt fig. 2 till laget enligt fig. 3, varvid kontaktorns franslagning sker. Kamskivan 86 dr fOrsedd med en urtagning 92, samverkande med en kugg 91 pa ena anden air en sparrklinka eller dubbelarm 96, som ar svangbar kring en vridpunkt 98 pa plinten 12 °eh som phverkas dels av en. utlosningselmagnet 100, vars rorliga magnetkarna 102 dr ledbart forbunden med dubbelarmen 96, dels av en tryckfjader 104, som stravar att svanga dubbelarmen 96 moturs for att halla kuggen 94 i sparrlage i kamskivan 86 enligt fig. 2. Vid kortvarig magnetisering av manoverelmagneten. 82 svanges kamskivan 86 medurs, lams kontaktknivarna 16, 22 i fig. 2 till anliggning mot sakringens 48 kontaktfanor 36, 12 och kommer kuggen 94 att inforas i urtagningen 92 i kamskivan, varefter kontaktorns manorermekanism ar last, sa. att flagon fortsatt magnetisering av manovermagneten 82 ej 5.r erforderlig. For att fora kontaktorns knivar 16, 22 till franslaget lage enligt fig. 3, tillfOres en stromimpuls till utl8sningsmagneten 100, varvid dubbelarmen 96 svanges medurs, sa att kuggen 94 friger kamskivan 86, varefter -den spanda fjadern 90 svanger dels kamski-van 86 moturs, dels de hada kontaktknivarna 16, 22 och de med dem kopplade ovriga kontaktknivarna till franslaget lage enligt fig. 3. The contactor's control mechanism consists of an electric magnet 82, which is fixed on. terminal 12 and as with its. movable magnetic core part 84 acts on a cam disc 86 on the operating shaft 14 by means of an intermediate coupled length 88. On the magnetic core part 81 a screw spring is mounted. 2- - 90, which is compressed during the magnetization of the electric magnet 82 and which in the case of a powerless electric magnet tends to move the magnetic core 84 from the layer according to Fig. 2 to the layer according to Fig. 3, whereby the contactor is disengaged. The cam disc 86 is provided with a recess 92, cooperating with a tooth 91 on one other air, a ratchet or double arm 96, which is pivotable about a pivot point 98 on the terminal 12 ° and which is partly actuated by one. the release solenoid 100, the movable magnetic core 102 of which is hingedly connected to the double arm 96, partly by a compression spring 104, which tends to pivot the double arm 96 counterclockwise to keep the gear 94 in the ratchet in the cam disc 86 of Fig. 2. For short-term magnetization of the actuating magnet. 82, the cam disc 86 is pivoted clockwise, the contact knives 16, 22 in Fig. 2 are slid into abutment against the contact tabs 36, 12 of the fuse ring 48 and the tooth 94 will be inserted into the recess 92 in the cam disc, after which the contactor's maneuvering mechanism is loaded. that further magnetization of the operating magnet 82 is not required. In order to lead the contactors' knives 16, 22 to the fringe layer according to Fig. 3, a current pulse is applied to the release magnet 100, whereby the double arm 96 is pivoted clockwise, so that the tooth 94 releases the cam disc 86, after which the tension spring 90 pivots partly the cam disc 86 counterclockwise , partly the had contact knives 16, 22 and the other contact knives connected with them to the fringe layer according to Fig. 3.

Den i fig. 4-7 visade utforingsformen av kontaktorn enligt uppfinningen Or utrustad med vanliga proppsakringar 120 for mindre markstrommar istallet f8r de vid utf6randet enligt fig. 1 anvanda sakringarna med kentaktfanor. Dessutom har kontaktorn enligt fig. 4-7 en enda manOvermagnet 122 bade for franslag och tillslag. Denna kontaktor dr inbyggd i en ladliknande behallare 124 (fig. 4 och 7). Ett rorligt kontaktorgan 126 Or svang-hart anordnat pA ett faststhende anslutningskontaktorgan 128 och ledbart fOrbundet med en manoverslid 130, forskjutbar utefter sin langdriktning i icke pa ritningen visade styrorgan. ManOversliden 130 paverkas vid sin pd. ritningen owe ande air en tryckfj5.der 132 och dr ungefar i mitten f6rsedd med en skara 134, samverkande med en sparrklinkas 136 hakliknande ande 138. Sparrklinkan 136 ar svangbar kring en faststaende vridpunkt 140 .och paverkas air en tryckfjader 112, som str5.- var att svanga sphrrklinkan 136 moturs till Miliggning mot manoversliden 130 och i givet fall till ingrepp i skaran 134. Vid sin nedre &ride samverkar manoversliden 130 med ena anden av en vipparm 144, som med viss begransning ar svangbar pa en manOverstang 146. Denna paverkas vid sin nedre ande av en dragfjader 148 och stracker sig genom namnda manoverelmagnet 122 ut ur behallaren 124, ddr den. ar forsedd med en kula &Isom fingertag 150. ManOverstangen 146 dr salunda utom av elmagneten 122 aven pAverkbar for hand. Sjalva stangen 146 bestar endast delvis av ferromagnetiskt material, vilket Oven framgar av fig. 6a-d, medan dess ovre parti, som Ar forsett med fingertaget 150, Ar utfort av nagot lampligt, icke magnetiskt material for att raOjliggora manOverstangens funktion som rorlig magnetkarna i magnetlindningen 122. Vipparmens 144 andra ande samverkar med en pa samma salt som manoversliden 130 utefter sin langdriktning fOrskjutbar kopplingslank 152, som i sin. tur vid sin frau vipparmen 144 vanda dude samverkar med sparrklinkan 136. The embodiment of the contactor according to the invention shown in Figs. 4-7 is equipped with ordinary plug securing rings 120 for smaller ground drums instead of the securing rings with pin strokes used in the embodiment according to Fig. 1. In addition, the contactor of Figs. 4-7 has a single actuating magnet 122 for both friction and turn-on. This contactor is built into a charge-like container 124 (Figs. 4 and 7). A movable contact member 126 is pivotally mounted on a fixed connection contact member 128 and hingedly connected to a control slide 130, displaceable along its longitudinal direction in guide means not shown in the drawing. ManOversliden 130 is affected by its pd. The drawing shows a compression spring 132 and approximately in the middle provided with a groove 134, cooperating with a hook-like spirit 138 of a ratchet link 138. The ratchet link 136 is pivotable about a fixed pivot point 140 and is affected by a compression spring 112, which str5.- was to swing the latch 136 counterclockwise to Miliggning towards the maneuvering slide 130 and, if necessary, to engage the group 134. At its lower ride, the maneuvering slide 130 cooperates with one end of a rocker arm 144, which with some limitation is pivotable on a maneuvering bar 146. This is affected its lower spirit of a tension spring 148 and extends through said maneuvering magnet 122 out of the container 124, where it. is equipped with a bullet & Isom fingerprint 150. ManOverstangen 146 dr salunda except of the electric magnet 122 aven Workable by hand. The rod 146 itself consists only in part of ferromagnetic material, as shown above in Figs. 6a-d, while its upper portion, which is provided with the finger grip 150, is made of some lightweight, non-magnetic material to enable the upper rod to function as a movable magnetic core in the second winding of the magnetic arm 122. The second end of the rocker arm 144 cooperates with a coupling hose 152 displaceable along its longitudinal direction along the longitudinal displaceable 130, as in its. turn at his wife's rocker arm 144 vanda dude interacts with the sparring latch 136.

Del rOrliga kontaktorganet 126 är vid sin fria ande lampligen utfort gaffelliknande for samverkan med en kontaktfana eller -stilt 154 ph en. hallare for sakringen 120. Hallarens utfOrande framgar narmare av fig. 5. Den be-star av en isolerhylsa 156, som vid sin ena &ride dr forsedd med en observationsoppning 158, en bakom denna placerad glasbricka 160 och en mot glashriekan anliggande kontaktplat 162, likaledes forsedd med ett abservationshal 164 i linje med oppningen 158. Kontaktplaten 162 har en ansats 166, som strAcker sig genom hylsan 156 ut till dess yttersida, dar ansatsen 166 vid sakringsbehallarens pIacering i kontaktorn kommer att anligga mot ett anslutningskontaktorgan 168, fast pa behallarvaggen 124. Proppsakringen 120 Egger efter inforande i hylsan 156 an. mot kontaktplaten 162, medan sakringens motsatta stiftliknande dude upptages pA vid proppsakringar brukligt salt av en passdel 170. Denna Or fastskruvad i ett lock 172, som i sin tur inskruvas i hylsan 156 och som dr for-sett med namnda kontaktstift 154. Stromvagen genom kontaktorn bildas salunda av anslutningskontaktorganet 128, av det rorliga kontaktorganet 126, kontaktstiftet 154, passdelen 170, smaltsakringen 120, kontaktplaten 162, 166 och av anslutningskontaktorganet 168. Sasom framgar av fig. 7 dro utom den i fig. 4 visade strombanan 128-168 tva. ytterligare stromvagar 128'-168' och 128"168" med var sitt icke pA ritningen visade rOrhiga kontaktorgan och var sin. sakring 120' och 120" anordnade i behallaren 121 for att kunna tillampa kontaktorn vid trefasledningar. Hylsorna 156 fOr sakringarna 120, 120', 120" dro fasta nedanfor en. slid 174, sa att de vid sakringsbyte gemensamt kunna dras ut ur behallaren 124, vilket vasentligt underlattar kontaktorns skotsel. I behallaren 124 aro anordnade observationshal 176, 176', 176", som vid inskjuten slid 174 befinna sig i linje med hylsornas observationshal 158-158". The movable contact member 126 is, in its free spirit, suitably made fork-like for co-operation with a contact fan or still 154 ph. holder for the fuse 120. The design of the holder is shown in more detail in Fig. 5. It consists of an insulating sleeve 156, which at its one ride is provided with an observation opening 158, a glass plate 160 placed behind it and a contact plate 162 abutting the glass ridge, likewise. provided with an observation hall 164 in line with the opening 158. The contact plate 162 has a shoulder 166, which extends through the sleeve 156 out to its outer side, where the shoulder 166 when the fuse container is placed in the contactor will abut against a connection contact member 168, fixed to the container cradle 124. The plug fuse 120 Egger after insertion into the sleeve 156. against the contact plate 162, while the opposite pin-like dude of the fuse ring is taken up on plugs of common fittings by a fitting part 170. This is screwed into a cover 172, which in turn is screwed into the sleeve 156 and which is provided with said contact pin 154. The current path through the contactor is thus formed by the connection contact means 128, by the movable contact means 126, the contact pin 154, the fitting part 170, the fuse ring 120, the contact plate 162, 166 and by the connection contact means 168. As can be seen from Fig. 7, except for the current path 128-168 two. additional current paths 128'-168 'and 128 "168", each not shown in the drawing rOrhiga contact bodies and each. fuse rings 120 'and 120 "arranged in the container 121 in order to be able to apply the contactor to three-phase lines. The sleeves 156 for the fuse rings 120, 120', 120" were fixed below one. slide 174, so that when changing the fuse they can be pulled out of the container 124 together, which essentially facilitates the contactor's protection. Arranged in the container 124 are observation halls 176, 176 ', 176 ", which when inserted slide 174 are in line with the observation hall 158-158" of the sleeves.

ManOvermekanismens verkningssatt tydliggores med ledning av fig. 6a-d. Vid laget enligt fig. 6a ar kontaktorn tillslagen, varvid manoverstangen 146 borj at sin. uppatrorelse fOr att astadkomma kontaktorns franslagning genom att magnetlindningen matas med en — —3 franslagningsinapuls. Vipparmen 141 lyfter kopplingslanken 152, som svanger sparrklinkan 136 medurs, varvid manoversliden 139 friges och de med den sistnamnda kopplade r8rliga kontaktorganen 126 svangas till frailslaget laze enligt fig. 4. Denna franslagning askadligg8res i fig. 6b, varefter manOverstangen 146 enligt fig. 6c atervander till vilolage vid stromlos magnetiseringslindning, och vipparmen 141 intar balanserat lage. Nar en ny stromimpuls tillfores magnetlindningen 122, vilket visas i fig. 6d, lyftes manoverstangen 146, och vipparmen 144 kommer till anliggning mot manoversliden 130, sa att aven den sistn.amnda lyftes tills sparrarmen 136 ingriper i skaran 134, varvid manOversliden 130 och de med densamma kopplade rOrliga kontaktorganen lasas i tillslaget lage. The operation of the mechanism is clarified with reference to Figs. 6a-d. At the joint according to Fig. 6a the contactor is switched on, whereby the control rod 146 starts to sin. to achieve the contacting of the contactor by feeding the magnetic winding with a - —3 release pulse. The rocker arm 141 lifts the coupling link 152, which pivots the ratchet 136 clockwise, whereby the control slide 139 is released and the movable contact members 126 coupled to the latter are pivoted to the unlocked laze according to Fig. 4. This unloading is damaged in Fig. 6b. to rest position at current-free excitation winding, and the rocker arm 141 assumes a balanced position. When a new current pulse is applied to the magnetic winding 122, as shown in Fig. 6d, the control rod 146 is lifted, and the rocker arm 144 comes into abutment against the control slide 130, so that the latter is also lifted until the spar arm 136 engages the groove 134. with the same coupled movable contact means are welded in the turned-on layer.

Claims

Patentansprak:Patent claim:

1. Kontaktor med minst ett rorligt och minst ett faststaende kontaktorgan, vilken Sr seriekopplad med en smaltsakring, bestaende av ett smalttraden uppta:gande hOlj e med pa detta anbragta anslutningskontaktorgan. f Sr smalttraden, varvid holjet med sina anslutningskontaktorgan bildar en sakringsenhet, utbytbar placerad pa kontaktorn, kannetecknad darav, att sakringsenheten (48, 120) Sr faststaende anordnad pa kontaktorm och bildar med sitt ena anslutningskontaktorgan. (12, 154) i konstruktivt avseende kontaktorns faststaende kontaktorgan, samverkande med del rorliga, av kontaktorns elmagnet (82, 122) manovrerade kontaktorganet.A contactor with at least one movable and at least one fixed contact member, which is connected in series with a fuse ring, consisting of a narrow-line receiving member with a connection contact member arranged thereon. F is the narrow wire, the housing with its connecting contact means forming a fuse unit, interchangeably located on the contactor, characterized in that the fuse unit (48, 120) is fixedly arranged on contactor and forms with its one connection contact means. (12, 154) constructively with respect to the fixed contact means of the contactor, cooperating with partially movable contact means maneuvered by the contactor's magnet (82, 122).

2. Kontaktor enligt patentanspraket 1, kannetecknad darav, att det andra faststaende anslutningskontaktorganet (36) pa sakringsenheten Sr anordnat att samverka med ett ytterligare rorligt, av kontaktorns elmagnet manovrerat kontaktorgan (16).2. A contactor according to claim 1, characterized in that the second fixed connection contact means (36) on the fuse unit Sr is arranged to cooperate with a further movable contact means (16) actuated by the contactor's electric magnet.

3. Kontaktor enligt patentanspraket 1 eller 2, kannetecknad darav, att elmagneten (82, 122) Sr anordnad att som tillslagningselmagnet fora det eller de rorliga kontaktorganen (126, 22, 16) till tillslaget lage, varvid en sparrarm (136, 96) Sr anordnad att lasa det eller de rorliga kontaktorganen I tillslaget lage.3. A contactor according to claim 1 or 2, characterized in that the electric magnet (82, 122) is arranged to feed the movable contact member (126, 22, 16) to the switched-on solenoid as a switch-on electric magnet, wherein a spar arm (136, 96) arranged to read the movable contact member (s) in the on position.

4. Kontaktor enligt patentanspriket 3, kannetecknad darav, att sparrarmen (96) Sr anordnad all manovreras medelst en sarskild utlosningselmagnet (100).A contactor according to claim 3, characterized in that the spar arm (96) Sr arranged all is operated by means of a special release electromagnet (100).

5. Kontaktor enligt patentanspriket 3, kannetecknad darav, att sparrarmen (136) Sr anordnad att manovreras medelst tillslagningselmagneten (122) fifir det eller de rorliga kontaktorganen.5. A contactor according to claim 3, characterized in that the locking arm (136) is arranged to be maneuvered by means of the switching-on magnet (122) for the movable contact member or means.

6. Kontaktor enligt nagot av fOregaende patentansprak, kannetecknad darav, att sakringsenheten Sr placerad pa en plint (76, 174), som Sr utdragbar ur kontaktorn.A contactor according to any one of the preceding patent claims, characterized in that the fuse unit is located on a terminal block (76, 174) which is extendable from the contactor.

7. Kontaktor enligt na.got av foregaende patentansprak, kannetecknad darav, att sakringsenheten (120) Sr placerad i en behallare (156), forsedd med ett skarvkontaktorgan (154) for samverkan med kontaktorns awnga kontaktorgan.7. A contactor according to any one of the preceding patent claims, characterized in that the securing unit (120) is located in a container (156), provided with a splice contact means (154) for co-operation with the contactor's heavy contact means.

8. Kontaktor enligt patentanspraket 7, kannetecknad darav, att behallaren Sr utford som hylsa (156), varvid del med kontaktorns rorliga kontaktorgan samverkande skarvkontaktorganet (154) Sr anordnat pa. ett lock till hylsan.A contactor according to claim 7, characterized in that the container Sr challenges as a sleeve (156), wherein part with the contactor's movable contact means cooperating with the splice contact means (154) is arranged on. a cover for the sleeve.

9. Kontaktor enligt patentanspraket 9, kannetecknad darav, att mellan sakringens kontaktorgan och det med kontaktorns rOrliga kontaktorgan samverkande skarvkontaktorganet Sr anordnad en passdel (170). Anforda publikationer: Patentskrifter fran Tyskland 649 192'; USA 2 107 829.9. A contactor according to the patent claim 9, characterized in that a fitting part (170) is arranged between the contact means Sr and the contact means Sr cooperating with the contactor's movable contact means. Request publications: Patents from Germany 649 192 '; USA 2 107 829.