SE201373C1

SE201373C1 -

Info

Publication number: SE201373C1
Authority: SE
Publication date: 1965-01-01

Description

KLASS INTERNATIONELLSVENSK H01 h21 c:35/ PATENT- OCH REGISTRERINGSVERKET Ans. 3976/1961 inkom den 15/4 1961 utlagd den 20/4 196 CONTINENTAL ELEKTROINDUSTRIE AG VOIGT & HAEFFNER, FRANKFURT A.M., FoRBUNDSREPUBLIKEN TYSKLAND Tryckluftsbrytare Uppfinaare: R Schulz Prioritet begcird frail den 16 april 1960 (Forbundsrepublilcen Tyskland) For tryckluftsbrytare med pa hogspanningspotential befintlig tryckluftsbehallare i vilka brytstrackan ãr placerad och vars kontakter i till- eller franslagslaget fasthallas air tryckluften, har man redan foreslagit att for den pneumatiska manOvreringen av brytstraekan anordna en sarskild manOverluftbehallare, som likaledes befinner sig pa hogspanningspotential och som via en backventil matas med tryckluftbehallarens tryckluft. Harigenom fir en paverkan av brytstrackan mojlig aven vid uteblivande av tryckluften i brytkammaren. 1VianOverluftbehallarens ventiler kunna manovreras medelst en mekanisk eller pneumatisk dtivanordning. CLASS INTERNATIONAL SWEDISH H01 h21 c: 35 / PATENT AND REGISTRATION AGENCY Ans. 3976/1961 was received on 15/4 1961 issued on 20/4 196 CONTINENTAL ELECTRICAL INDUSTRY AG VOIGT & HAEFFNER, FRANKFURT AM, FEDERAL REPUBLIC OF GERMANY Compressed air circuit breaker Inventor: R Schulz Priority begpird beblunds Forbleds on April 16, 1960 in which the breaker line is located and whose contacts in the supply or exhaust stroke are retained in the compressed air, it has already been proposed to arrange for the pneumatic operation of the breaker line a special manOverly air tank, which is also at high voltage potential and which is supplied via a compressed air valve. As a result, an impact on the breaking path is possible even in the absence of the compressed air in the breaking chamber. 1VianOver airflow valves can be operated by means of a mechanical or pneumatic actuator.

Vid artvandning av en mekanisk drivanordning, t. ex. stangsystem, fir brytning mojlig vid uteblivande air tryckluften i den pa brytarens sockel befintliga tryckgasforradsbehallaren. Detta är emellertid icke fallet, om manoverventilema paverkas av en pneumatisk drivanordning, ty den for den pneumatiska drivanordningen nodvandiga tryckluften uttages fran den pa jordpotential befintliga tryckluftsforradsbehallaren. Uteblir emellertid tryckluften i denna, kommer avail den pneumatiska drivanordningen for manoverventilerna ur drift.. When irrigating a mechanical drive device, e.g. rod system, for breaking possible in the absence of air compressed air in the compressed gas storage tank on the base of the switch. However, this is not the case if the control valves are actuated by a pneumatic drive device, because the compressed air required for the pneumatic drive device is taken out of the compressed air supply tank located at ground potential. However, if the compressed air is not present in this, the pneumatic drive device for the control valves will be taken out of operation.

En tryckluftsbrytare ar hand, vars manaverluftbehallare ligger pa jordpotential. ManOverluftbehallaren ar direkt ansluten till tryckluftforsorjningsledningen och ligger pneumatiskt parallellt med tryckluftforra'dsbehallaren. I handelse av en skada, som skulle tom-ma stodisolatorn och den brytstrackan upptagande behallaren, kan det oaktat en kopp lingsoperation foretagas. Den darvid uppstaende brylljusbagen kommer emellertid pa grund av utebliven tryckluft icke att kunna slackas. Forstoring av kopplingsapparaten är folj den. A compressed air switch is in hand, whose control air tank is at ground potential. The ManAir Air Tank is directly connected to the compressed air supply line and is pneumatically parallel to the compressed air supply tank. In the event of damage, which would empty the standing insulator and the container accommodating the breaking point, a coupling operation can be carried out notwithstanding. However, the resulting wedding bag will not be able to be slackened due to lack of compressed air. Magnification of the coupling device is follow it.

Foreliggande uppfinning avser en anordning, vid vilken aven vid pneumatisk drivanordning manoverluftbehallarens ventiler fOrbli kopplingsberedda vid uteblivande av tryckluften i tryckluftsforradsbehallaren eller i brytkarnmaren. Enligt uppfinningen befinner sig den med den pa hogspanningspotential befintliga tryckluftsbehallarens tryckluft matade manOverluftbehallaren pa jordpotential. Mauoverluftbehallaren star genom ett isolerror i forbindelse med den pa hogspanningspotential befintliga tryckkammaren och fylles med tryckluft frill tryckkammaren via en backventil. The present invention relates to a device in which, even in the case of a pneumatic drive device, the valves of the control air tank remain ready for coupling in the absence of the compressed air in the compressed air storage tank or in the breaker frame. According to the invention, the compressed air tank supplied with the compressed air of the compressed air tank located at high voltage potential is at ground potential. The mauover air container stands through an insulating pipe in connection with the pressure chamber at high voltage potential and is filled with compressed air from the pressure chamber via a non-return valve.

Vid tryckluftsbrytare med multipelbrytning, vilka arc forsedda med flera tryckkamrar per poi, fir for den pneumatiska manovreringen air alla brytstrackorna for en pol endast en man5verluftbehallare tillracklig, som matas frail polens samtliga tryckkamrar via backventiler. Att anordna den frau tryckkamrarna matade tryckluftsbehallaren pa jordpotential liar ytterligare den fordelen, att ett ror med relativt liten ackumuleringsvolym och med liten inre diameter kan anvandas som behallare, ty manoversystemets luftbehov fir mycket ringa i jamforelse med behovet av slackningsluft. Ett sadant ror kan i brytarens sockel utgora bestandsdel ay barkonstruktionen eller barare for brytarpolen. Manoverluftbehallaren kan aven besta air tv8. parallellt 2 forlopande och med varandra f8rbundna ror, som bilda delar av brytarens bottenram. Dot ena av de parallellt forlopande roren kan aven tjana som tillsatsbehallare for de pa hogspanningspotential befinfliga tryckluftsbehallarna och via en backventil vara forbundet med den frau tryckluftsnatet kommande huvudmatarledningen. In the case of multiple-breaker compressed air switches, which are equipped with several pressure chambers per poi, for the pneumatic actuation of all the breaker tracks for one pole only one control air tank is sufficient, which is fed from all the pressure chambers of the pole via check valves. Arranging the compressed air tank fed from the pressure chambers to earth potential has the further advantage that a tube with a relatively small accumulation volume and with a small inner diameter can be used as a tank, because the air requirements of the control system are very small compared to the need for slag air. Such a rudder can form a component of the bar structure or the bar of the switch pole in the base of the switch. The control air tank can also consist of air tv8. parallel 2 continuous and interconnected tubes, which form parts of the bottom frame of the switch. However, one of the parallel tubes can also serve as an additional container for the compressed air containers located at high voltage potential and be connected via a non-return valve to the main supply line coming from the compressed air network.

DA den fran tryckkamrarna matade manoverluftsbehallaren icke forlorar nagon tryckluft vid skador pa huvudmatarledningen och vid skador pa brytarens konstruktionsdelar, anslutas till derma behallare lampligen samtliga for manovrering, tryckovervalming och spolluftsforsorjning nodvandiga apparater. De manoverluftsbehallaren matande isolerroren kunna vara anordnade utanfor och oberoende av de tryckkammaren uppbarande isolerpelarna. De kunna emellertid aven, om barande ihaliga• st8disolatorpelare forefinnas, placeras inuti pelaren. Since the control air tank fed from the pressure chambers does not lose any compressed air in the event of damage to the main supply line and in the event of damage to the switch's structural parts, all devices necessary for maneuvering, pressure heating and purge air supply are connected to these tanks. The insulating tubes feeding the control air tank can be arranged outside and independently of the insulating columns supporting the pressure chamber. However, they can also be placed inside the column, if load-bearing solid insulator columns are present.

Befinner sig vid en tryckluftsbrytare den brytstallena reglerande huvudmanoverventilen pa hogspanningspotential och paverkas denna ventil medelst ett pneumatiskt drivet stangsystem, kan detta av en tryckluftsdrivanordning drivna stangsystem vara ett isolerr8r och utnyttj as till att leda tryckluften fran tryckkamrarna vidare till manoverluftsbehallaren. Harigenom erhalles en mycket enkel och driftsaker anordning, ty i de brytarens underdel och tryckkamrarna forbindande ihaliga isolatorerna forefinnas inga som heist utrymmen, vilka under driften ibland sta i forbindelse med den fria atmosfaren. Detta innehar, att dh' de eljest vanliga anordningarna bar lamnande av sâ kallad spolluft kunna bortfalla., Den fran tryckkamrarna matade manliverluftsbehallaren kan pa i och for sig kant salt medelst en overtrycksventil skyddas mot otilllatet h8gt tryck, sadant det kan orsakas t. ex. genom solinstralning. Denna overtrycksventil manovreras lampligen medelst tryckovervakningsapparater och installes sa, att den fungerar tidigare an. hela brytargruppens huvudOvertrycksventil. Harigenom uppnas, att de enligt erfarenhet mycket kansliga h.uvudavertrycksventilerna overhuvud taget icke fungera vid normal brytardrift. De astadkomma en- dast i handelse av en storning, att otillatna tryckokuingar omojliggaras. De manovrerade Overtrycksventilerna kunna vara forsedda med vO.da mindre tvarsnitt an huvudavertrycksventilen, enar en relativt ringa luftgenomgang är tillracklig att minska det av solinstralning framkallade overtrycket. If the compressed air regulating main control valve is at high voltage potential at a compressed air switch and this valve is actuated by means of a pneumatically driven rod system, this rod system driven by a compressed air drive device can be an insulating pipe and used to direct the compressed air from the pressure chambers to the control air tank. As a result, a very simple and operational device is obtained, because in the lower part of the switches and the pressure chambers connecting the hollow insulators there are no such hot spaces, which during operation are sometimes connected to the free atmosphere. This means that, in other words, the otherwise common devices should be able to dispense with so-called purge air. The male air reservoir fed from the pressure chambers can in itself be protected against salt by means of an overpressure valve against unauthorized high pressure, so that it can be caused e.g. by solar radiation. This pressure relief valve is suitably operated by means of pressure monitoring devices and installed so that it operates earlier. the entire switch group main overpressure valve. In this way it is achieved that, according to experience, the very probable main overpressure valves do not function at all during normal switch operation. They only achieve, in the event of a disturbance, that impermissible pressure reductions are made impossible. The maneuvered overpressure valves can be provided with smaller cross-sections than the main overpressure valve, otherwise a relatively small air passage is sufficient to reduce the overpressure caused by solar radiation.

Figurerna pa bifogade ritningar tjana till att forklara uppfinningen. Fig. 1 visar schematiskt en poi hos en tryckluftsbrytare med en pa jordpotential befintlig manoverluftsbehallare. Med 1, 2 och 3 betecknas stodisolatorerna for polens brytstraekor, av vilka stodisolatorer var och en uppbar tvâ brytstrackor, vilka aro anordnade i brytkamrarna 4 och 5. Med 6, 7 och 8 betecknas de pa sockeln for varje stodisolator befirttliga tryckluftsforradsbehdllarna, vilka omedelbart matas fran tryckluftsforsorjningsanlaggningen och vilkas innehall star i forbindelse med brytkamrarna genom oppningar 9, 10 och 11 i stodisolatorerna 1, 2 och 3. Vid inloppsstallet brytkamrarna Oro backventiler 12, 13 anordnade, sa att tryckluften bibehalles i brytkamrarna 4, 5, nar tryckluften forsvinner i en av forradsbehallarna 6, 7 eller 8. Fran brytkamrarna for varje stadisolator leder en rorledning 11 till den pA jordpotential befintliga manoverluftsbehallaren 15. Aven vid inloppsstallena vid denna rorledning i behallaren 15 aro backventiler 16, 17, 18 anordnade, sit att aven yid uteblivande av blasluften i en brytkammargrupp ett kopplingskommando kan genomfaras med de aterstaende brytkamrarna. Fran manoverluftsbehallaren 15 leda via det for hand eller fjarrpaverkbara manoverblocket 19 manoverledningarna 20, 21 och 22 till de av stodisolatorerna 1, 2, 3 uppburna brytkamrarna. Manoverblocket 19 5.r sa utbildat, att manoverledningarna 20, 21 ocb. 22 sta i forbindelse antingen med manoverluftsbehAllaren 15 eller med den fria atmosfaren. I forstnamnda fallet kommer manoverluften in i brytkamrarna och astadkommer, att brytstallet oppnas. Vid borttagande av manoverluften, dvs.. i andre fallet, slutes brytstallet. Genom denna anordning ar del majligt att genomfora en brytning pa pneumatisk vag aven vid uteblivande av tryckluften I forradsbehallarna 6, 7 och 8. The figures in the accompanying drawings serve to explain the invention. Fig. 1 schematically shows a position of a compressed air switch with a control air tank located at ground potential. 1, 2 and 3 denote the standing insulators for the poles of breaking of poles, of which standing insulators each carried two breaking rungs, which were arranged in the breaking chambers 4 and 5. By 6, 7 and 8 are denoted the compressed air supply containers on the base of each standing insulator, which are immediately supplied. from the compressed air supply system and whose contents are connected to the breaker chambers through openings 9, 10 and 11 in the standing insulators 1, 2 and 3. At the inlet stable the breaker chambers Oro check valves 12, 13 are arranged so that the compressed air is maintained in the breaker chambers 4, 5. of the storage tanks 6, 7 or 8. From the break chambers for each stage insulator a pipe line 11 leads to the control air tank 15 located at ground potential. Also at the inlet stalls at this pipe line in the tank 15 there are non-return valves 16, 17, 18 arranged in the absence of blowing air. in a breaker chamber group a switching command can be executed with the remaining breaker chambers. From the control air tank 15, via the manually or remotely actuatable control block 19, the control lines 20, 21 and 22 are led to the switching chambers supported by the stud insulators 1, 2, 3. The control block 19 5.r is so trained that the control lines 20, 21 ocb. 22 is connected either to the control air tank 15 or to the free atmosphere. In the former case, the control air enters the breaking chambers and causes the breaking stable to be opened. When the control air is removed, ie in the second case, the breaker is closed. By means of this device it is possible to carry out a break on the pneumatic shaft even in the absence of the compressed air in the storage tanks 6, 7 and 8.

Fig. 2 visar en utforingsform av en polpelare, vid vilken manoverluftsbehallarna bilda en del av brytarens bottenram. Tryckkammaren 23 uppbares av fyra ihaliga stodisolatorer 24 till 27, av vilka stadisolatorn 24 tjanar till att leda blasluften till tryckkammaren 23, medan stodisolatorerna 25 till 27, av vilka stodisolatorn 27 dr tackt av stodisolatorn 24, leda luften vidare, sit ledes namligen via stodisolatorn 25 tryckluften frail tryckkammaren 23 till manoverluftsbehallarna 28 och 29, under det att via stOdisolatorn 26 manOverluften le-des till brytstrackorna i tryckkammaren 23. Manoverluftsbehallarna 28 och 29 besta av tvit parallellt farlopande och med varandra fOrbundna ror, som utgora delar av brytarens korbara bottenram 30. I holjet 31 aro anbragta de for brytningen erforderliga ventilerna. Tryckkammaren 23 uppbar de bade genomforingsisolatorerna 32 och 33 for den inkom- 3 mande och utgaende ledningen. I tryckkammaren 23 befinna sig brytstrackorna och de nodvandiga tillbeh8ren, sasom manovermotstand och dylikt. Tryckkammarens 23 inre är tillgangligt genom en oppning 34. Med 35 och 36 betecknas brytstrackornas bla.sluftsutloppsstallen. Fig. 2 shows an embodiment of a pole column, in which the control air tanks form a part of the bottom frame of the switch. The pressure chamber 23 is supported by four hollow standing insulators 24 to 27, of which the standing insulator 24 serves to conduct the blowing air to the pressure chamber 23, while the standing insulators 25 to 27, of which the standing insulator 27 is thanks to the standing insulator 24, conduct the air further, namely via the standing insulator 25 the compressed air from the pressure chamber 23 to the control air tanks 28 and 29, while via the shock insulator 26 the control air is led to the switching tracks in the pressure chamber 23. The control air tanks 28 and 29 consist of two parallel running and interconnected tubes which form parts of the switch frame's corable bottom. The valves required for refraction are arranged in the housing 31. The pressure chamber 23 carried both the bushing insulators 32 and 33 for the incoming and outgoing line. In the pressure chamber 23 are the breakers and the necessary accessories, such as operating resistance and the like. The interior of the pressure chamber 23 is accessible through an opening 34. 35 and 36 denote the, among other things, the air outlet stalls of the breaking tracks.

Inuti den ihaliga stodisolatorn 24 kan aven ett drivstangssystem 37 vara anbragt for paverkan av en huvudmanoverventil inuti tryekkammaren 23. Detta stangsystem drives da av en pneumatisk drivanordning, som är anbragt holjet 31 och pneumatiskt paverkas av ett manoverblock. Vid denna konstruktion utbildas stangsystemet lampligen som ett isolerr5r, som utnyttj as fOr vidareledande av tryckluften frail tryckkammaren 23 till manoverluftsbehallarna 28 och 29, sa att stodisolatoreran 25 och 26 kunna vam . massivt utbildade. Vid den sist beskrivna konstruktionen kunna de elj est vanliga anordningarna for lanmande och overvakning av spolluften bortfalla, enar det inuti brytaren icke finnes nagra som heist isolerstrackor, som ibland sta i forbindelse med den fria atmosfaren. Inside the hollow stand insulator 24, a drive rod system 37 can also be arranged for the action of a main control valve inside the pressure chamber 23. This rod system is then driven by a pneumatic drive device, which is arranged on the housing 31 and is pneumatically actuated by a control block. In this construction, the rod system is suitably formed as an insulating tube, which is used for conveying the compressed air from the compressed chamber 23 to the control air containers 28 and 29, so that the standing insulators 25 and 26 can be used. massively educated. In the case of the last-described construction, the most common devices for latching and monitoring the purge air can be dispensed with, provided that there are no insulating stacks inside the circuit breaker, which are sometimes connected to the free atmosphere.

Star ett av roren 25, 26 i forbindelse med den pa hogspanningspotential befintliga tryekkammaren 23 och med huvudmatarledningen, utnyttj as detta ror lampligen som en buffertbehallare fi3r uppfangande av tryckstotar vid pafyllningsforlopp. I detta fall kan huvudovertrycksventilen anslutas till buffertbehallaren. If one of the tubes 25, 26 is in connection with the pressure chamber 23 present at high voltage potential and with the main supply line, this tube is suitably used as a buffer container for catching pressure nozzles during filling processes. In this case, the main pressure relief valve can be connected to the buffer tank.

Claims

Patent claim:

1. Compressed air circuit breaker with high-pressure potential air reservoir in the Aikeu switchgear is located and for which a special control air reservoir is arranged for maneuvering, which is supplied with the compressed air reservoir's compressed air, characterized by the sig pa j word potential.

Switch according to patent claim 1, characterized in that for pneumatic maneuvering of a pole all switching tracks are arranged only one control air tank, which is fed to Iran all compressed air tanks for the pole breaking lines via rear valves (16, 17, 18).

A switch according to claims 1 and 2, characterized in that in an insulating tube (24), which provides the connection between the compressed air tank and the control air tank, the life there is provided with a drive rod for driving a control valve.

Switch according to patent claims 1 to 3, characterized in that the control air reservoir arranged on the base of the switch pole constitutes the switch pole.

5. Switch according to the patent claim. 4, Urine characterized in that the control air reservoir consists of two parallel and interconnected tubes (28, 29) which form parts of the bottom frame (30) of the switch.

Switch according to patent claim 5, characterized in that one of the parallel tubes (28, 29) is arranged as an auxiliary container for the compressed air containers located at high voltage potential and is connected to the main supply line via a non-return valve.

Switch according to claim 6, characterized in that the additive container is protected by means of an overpressure valve, which functions previously on the main overpressure valve for the entire switch group. Request publications: Patentskrifter! Rein Sverige 90 206, 169 78

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