SE458649B

SE458649B - CONVERSION CONNECTOR FOR WINDING CONNECTORS FOR OUTPUT TRANSFORMERS

Info

Publication number: SE458649B
Application number: SE8500809A
Authority: SE
Inventors: J Neumeyer
Original assignee: Reinhausen Maschf Scheubeck
Priority date: 1984-03-13
Filing date: 1985-02-20
Publication date: 1989-04-17
Also published as: SE8500809L; JPH0580808B2; DE3409077A1; JPS611006A; BE901759A; FR2561466B1; FR2561466A1; DE3409077C2; SE8500809D0

Description

458 649 2 14, 15 och omkopplarkontakternas 5, 6 kontakthållare 7, 8 uppbärs i sin tur av en icke närmare visad omkopplartrumma, som är anordnad i centrum av isolertrumman och kan vridas stegvis. Omkopplartrumman uppbär också en tvåarmad hävarm 16, som gör ingrepp bakom en ansats 17, 18 på vardera lagerarmen 14, 15. Den tvåarmade hävarmen 16 är vidare försedd med en styrrulle 19, som i viloläget är belägen i ett urtag 20 i utgångsskenan 4 och håller den.tvåarmade hävarmen 16 i mellanläget. Under omkopplingen lämnar styrrullen 19 urtaget 20. I beroende av omkopplingsriktningen lyfter då hävarmen 16 antingen den ena lagerarmen 14 eller den andra lagerarmen 15, så att kontakten mellan kontaktrullen 10 resp 11 och utgångsskenan 4 bryts. 458 649 2 14, 15 and the contact holders 7, 8 of the switch contacts 5, 6 are in turn supported by a switch drum (not shown), which is arranged in the center of the insulating drum and can be rotated stepwise. The switch drum also carries a two-armed lever 16, which engages behind a shoulder 17, 18 on each bearing arm 14, 15. The two-armed lever 16 is further provided with a guide roller 19, which in the rest position is located in a recess 20 in the output rail 4 and holds the two-lever lever 16 in the intermediate position. During the switching, the guide roller 19 leaves the recess 20. Depending on the switching direction, the lever 16 then lifts either one bearing arm 14 or the other bearing arm 15, so that the contact between the contact roller 10 and 11, respectively, and the output rail 4 is broken.

Funktionen under omkopplingsförloppet beskrivs i det följande närmare med hänvisning till-fig 2a till 2f. I fig 2a anligger de båda omkopplarkontakterna 5, 6 i sina vilolägen mot lindningskontakten 2.The function during the switching process is described in more detail below with reference to Figs. 2a to 2f. In Fig. 2a, the two switch contacts 5, 6 abut in their rest positions against the winding contact 2.

Likaså anligger de båda tillhörande kontaktrullarna 10, 11 mot ut- gångsskenan 4, och den tvàarmade hävarmens styrrulle 19 är belägen i det till lindningskontakten 2 hörande urtaget 20. Båda omkopplar- kontakterna 5, 6 och tillhörande kontaktrullar 10, 11 deltar i ström- ledningen. Som framgår av fig 2b lämnar som första steg vid omkopp- ling från lindningskontakten 2 till lindningskontakten 3 styrrullen 19 urtaget 20, och lyfter därigenom kontaktrullen 10 från utgångs- skenan 4. Eftersom omkopplarkontakten 6 då fortfarande inte lämnat lindningskontakten 2, kvarstår strömledningen genom omkopplarkontak- ten 6 och tillhörande kontaktrulle 11. Vid den fortsatta omkopplings- rörelsen (fig 2c) lämnar omkopplarkontakten 6 lindningskontakten 2, varigenom överkopplingsmotstàndet 9 kopplas in så snart den uppkomna ljusbågen upphört. Strömbanan går nu genom omkopplarkontakten 5, överkopplingsmotståndet 9 och kontaktrullen 11. I fig 2d har omkopp- larkontakten 6 nått den intilliggande lindningskontakten 3, så att belastningsströmmen nu flyter direkt från lindningskontakten 3, genom omkopplarkontakten 6 och den tillhörande kontaktrullen 11. Denna be- lastningsström är överlagrad med kretsströmmen som flyter från lind- ningskontakten 2, genom omkopplarkontakten 5 och överkopplingsmot- ståndet 9 och till lindningskontakten 3. I fig Ze lämnar omkopplar- kontakten 5 lindningskontakten 2, och bryter på så sätt kretsström- men. Slutligen visar fig Zf det nya arbetslaget, där styrrullen 19 har lagt sig i det följande urtaget. Därmed flyter belastningsström- men återigen genom båda omkopplarkontakterna 5, 6 och båda kontakt- rnllarna 10, 11.Likewise, the two associated contact rollers 10, 11 abut against the output rail 4, and the guide roller 19 of the two-armed lever is located in the recess 20 belonging to the winding contact 2. Both switch contacts 5, 6 and associated contact rollers 10, 11 participate in the power line. . As shown in Fig. 2b, as a first step in switching from the winding contact 2 to the winding contact 3, the guide roller 19 leaves the recess 20, thereby lifting the contact roller 10 from the output rail 4. Since the switch contact 6 has still not left the winding contact 2, the power line remains through the switch contactor. 6 and the associated contact roller 11. During the continued switching movement (Fig. 2c), the switch contact 6 leaves the winding contact 2, whereby the switching resistor 9 is switched on as soon as the arc produced has ceased. The current path now passes through the switch contact 5, the switching resistor 9 and the contact roller 11. In Fig. 2d the switch contact 6 has reached the adjacent winding contact 3, so that the load current now flows directly from the winding contact 3, through the switch contact 6 and the associated contact current 11. is superimposed with the circuit current flowing from the winding contact 2, through the switch contact 5 and the switching resistor 9 and to the winding contact 3. In Fig. Ze, the switch contact 5 leaves the winding contact 2, and thus breaks the circuit current. Finally, Fig. Zf shows the new working layer, where the guide roller 19 has settled in the following recess. Thus, the load current flows again through both switch contacts 5, 6 and both contact rollers 10, 11.

Claims

458 649 Figs. 3a to 3f show an alternative movement diagram for the switching device, the intention being that the contact rollers 10, 11 running along the rail 4 should participate in the switching process. In Fig. 3a, both switch contacts 5, 6 and both contact rollers 10, 11 abut against the winding contact 2 and the rail 4, respectively, and participate in the conduction of the load current. As a first step, the switch contact 6 leaves the winding contact 2 (Fig. 3b), which takes place without a power failure, since the power line is now completely taken over by the switch contact 5 with associated contact roller 10. The guide roller 19 then remains in the recess 20. As the next step leaves, as shown in Fig. 3c, the guide roller 19 recesses 20 and disconnects the current line to the contact roller 10, so that the load current must now flow through the switch contact 5, the switching resistor 9 and the contact roller 11. In Fig. 3d the switch contact 6 has reached the adjacent winding contact 3, so that the load current can now flow directly from the winding contact 3 through the switch contact 6 and the contact roller 11, however, the circuit current from the winding contact 2 through the switch contact 5 and the switching resistor 9 continues to flow. As shown in Fig. 3e, this circuit current is interrupted as soon as the switch contact 5 leaves the winding contact 2. Finally, Fig. 3f shows the completed switching process, when both switch contacts 5, 6 abut the winding contact 3 and both contact rollers 10, 11 abut against the output rail 4. The guide roller 19 then again located in a recess 20. P atentkrav:

Switches for winding switches for socketed transformers, with several fixed winding contacts (2,3) arranged along an arc of a circle and with two. switch contacts (5,6), which roll along the arc of a circle and move the current supply from a winding contact (2) to an adjacent winding contact (3), and which in idle mode both abut against the same winding contact (2 or 3), and of which during the switching process one , in the rearward movement direction, the switch contact (5) initially maintains the electrical connection with the initially current-supplying winding contact (2), while the other, in the forward-moving direction, the switch contact (6) communicates with the adjacent winding contact (3) below connecting a switching resistor (9), the switch contacts (5, 6) being permanently conductively connected to each additional series contact (10, 11), which either one at a time or both simultaneously make contact with an output contact which has the shape of a circular arc-shaped rail (4), characterized in that each series contact is formed as a contact rolling directly towards the rail (4). roller (10,11), which lies on substantially the same axis as the associated switch contact (5,6) and is connected to it by means of a flexible rod (12,13) made as an electrical conductor, and that during the switching one of the contact rollers (10,11) is held raised from the rail (4) by means of a stop lever (16,17).

Switching device according to Claim 1, characterized in that during the switching process the contact roller (10) belonging to the rear switch contact (5) is always lifted unp from the rail (4).

Switching device according to Claim 2, characterized in that the lifting of the contact roller (10) takes place before the front switch contactor (6) has left the winding contacting contactor (2) initially supplied with current.

Switching device according to Claim 2, characterized in that the lifting of the contact roller (10) takes place only when the front switch contact (6) has left the winding contact (2) supplying current from the beginning.