DEP0030409DA - Device for the automatic initiation and removal of the rotor short-circuit when switching to counter-current braking for drives with AC asynchronous motors. - Google Patents

Description

B BC toÄ # is _t to * $$

brown, BOVERI & Cil

Corporation

MANNHEIM

"SStt & ftfenut earn * elfcs ** 8tigee « Äfea «a & Jta & rika *

l * ^ t »» «^» it «^» f # r nsit Se »« l & ^ # lif « vöarseBäefc * feel € m äi« IteÄlliBi 4 « £ ι · 9Β * 1« · άΒηφ «ssä Vertauijcben two Ään » Jte Stün & er «ä ^ gt- Uäteeill Ife · äIä & ä m | # 1 * IteA *

M ^ msmttB «et & β2 && * " feel # «sfiiig« & Txigfats & aaQ & n Jae «a & t»

Mtsefif vssa £ aft ££ & * itt to SfigKfcl ** H «* & AUbm IfelX · s & eee &

äasa at® 3 & »gg & * OBM 4m Säaafis» «öör s« ^^^ tot 4nxofe »$ sfct * öse Sfe ^ Ä ^» ei »lÄt « s M-äi feeeteb * * 6 * r «& fe8 * t & t * ge & lWÄ »« Ä »*% ffiÄ ^ t $ t * mm fee ~ Saantea SitasÄ mbm ₉ 4ae * fcoS · & μμ Attynetacms *

$ α * tier te ^ ümi Wmm € l # 4b «iä & e & n & · $ βομμβ - ftpA« *

8Bft & eä ate tfl ^ SÄ% »§teÄi * ^ i ^ ^« hä Äm

JMS & «si « agLeUfe. 44 »tadäfc dl» slÄsAa Xittttt «nwjH tasgfc»

fet, • HAseei ^r 3 ^^^^^^ »^ Ä»% "* Äi ^ te ^ tei ^ *» Mft IS ^ ^t m &

stepped stacoaa ^ it ^ ea. «Nftgs & ea»

In a known automatic IÄuferkurzschluss- device for conveyor reels -and the like. A centrifugal switch is driven by the iäo gate shaft, which activates the Mtxfexetrwkreis with the help of a Belmis iXbox when the synchronous speed is reached. Schütz lmxzi & Gblt , m & t * This KomseolilneB is only canceled again when the control lever returns to its center position. the relay current coil is de-energized by means of an IM switch. Oft'Ba wrhlmäen® that <mer Muf © »twiitaels" also th at the transition to Q @ gm3tmwbTemmm &; closes aus® "Oem like StenMduiM attached JfateliaXtex still eia Drehxichtumgsschalter" tsgettben * Beid © Imsehalter EIAD is switched so that they the StrenteeiB wipe f ^ iehfeafteohaiter et al. Eelals box dasn sehXiessen, "on the l # terd« tixiöki «ag corresponds to the display of the control lever, Mofet Äer ^ « run old OggQ & stroÄreffisttBg is driven «Through this Sterlehtmtg it is achieved that the runner of the Haepelmotora des at Sjrnehrondxehsahl UBabMisgig vo » der- Aufiaerteaiefeii des SrafciiBletea automatically laaas ^ eeehlesam and thereby the ae & br of the passage of the Saaeliiae irernie & ea »

This Eiarichtuag gasQgt the "a si" rack-fairies requirements in full, but it has the tangible part that makes a big wrhSXtnismäsaig "expenditure of Sehalt-" and Hilfeeia "directions necessary"

laughs 4t * Srf iotan * / »the sieve demgamäsa on elae Eliiriehimsg au» automatic introduction wd lifting of the l & fejte- # öhlmsse tela Üt6bal $ tn nf öeg «streii with drive» with W @ ^ @ 3 ^ tr «^ A« y ^ A »9®t © in the _# . especially to I ^t Sreerhepeto. tUtd & U ^ asieMj be _t this Ätforäarwige "Jrn same Weiee _4, but nit much" füllt- eisfaehexea means * ßeaäe © dear invention 'is a "fei W @ ctoetotr" -Asj "0hro" ^ t © r cultivated a Glelchstroinmaechlne einfachster design, which is excited, for example, via dry rectifier freed his tesa * -This ^ Sleich power supply aar Erreguag © Ines not polarized © "Be" Iais, Sn. whose Stromkrele as control levers arranged KoataktQ _si a variable resistor as well as stop valves are connected upstream, and the 'serves, in the transition to the M.uf@rlnarssclilu.ss Bxeaseehaituag dependent rm. to abolish the Drenrichtifflg "Jn. the ÄfeiMmmg is a Äisfahrmngsbelaplel of the load shown echematically, with, for the sake of simplicity, all the

Parts are omitted that are not directly related to the invention object la connection Stefesa _f JSSit a is the W © elÄBlstÄa-ÄS ^ slir © n »toi of a PtSrdeirlmspelaKteiebes, whose direction of rotation is reversed in a known way by vertaasohm« two phases in the stand. The general befeoa ^ i ^ SinriehtTOgCTi sam M ^ sa toad aar Drehs & hlregßlung te © Motors -pexmittelö VidmtSadas la XSafeAxeis are omitted in the AaaJJdttng voroea * ^K it of the Sotor a is immediately ei »Meine 'lHeieistr ^ fflaschia © bappelt * the Ä bappelt ! »Oetan rectifier JteaaA ffir» gt tteia came, Biese Gleichetroznmaaehine% feeds via contacts e and e ₂ , which are actuated by the control lever for "Auf * - ^w O ^e - ^w A ⁿ ", via an adjustable series resistor e the voltage relay f _f that has the task "at au high speeds the X8af ertax ^ B" eblENtt eiMaOLeiim and Üa Müa ffeergaeg on counterstrosibresasuiig "% a to ensure that the Äufeyl" sBi? lalt "s Jeeils ds" a "nemii is subject to change" im®. the direction of rotation d # s AntÄebsiiöte »Saasas, on BS ¹ SiESSs Äergegangm *« tad ta Aaa StxoEfeeis of the voltage relay f two shut-off valve · g and h is inserted »

ffiet ®a »b © ispi @ lsseise ä% Aaaa see the control lever d ia its position ^w Ab ^e , whereby the KontaM is closed« ραβ nifittt San fütato an, ds »Aar Motor a §i ^ h at ksm · gesehlioeseaeat X & uferetrooikreis sit sin «vtiUagi ^ isma Seaetolsdlgfeit rotates * ae sees na obaa further, that» the Selais f I bei dm aa the DC cimasehlne b ataaetxaaaaaa, polarities is excited * because the blocking valve h the Strosnrerlauf äke relay f fraisibtr »ixd« now at BatarJjalieaaaaaaft duröh rustled "Aee control lever A aaar is" ÄHst # 3J "g Yes. Äe Ste & nag "Auf * dl® ö @ gansti ^ Ay« isi «? G introduced * a © is dl © $$ mnmmg der §leichstOT ^ e ®Qhi » eb ^ er das Sperwastil g tatd des Begel resistance e auf d & s Bel & is t WMtTlmsm ₉ soda »deee« Xntfcafct fj Sffnet ^ Die SÄaltwrbiBauage ^ vom BtCLaJa f sua JSaferkreis I »1% * ©» a are, in the figure aegBB ^ awaaa «When the contact t _% is opened, the X buyer short-circuit on the motor is auJljgenoaen *

The facility according to Smt Brflaauag; draws see βαχαβ; «Laaa essentially elatfaahasea, teat deals MHigeren Aafban aaay da compared to the well-known establishment "called a Jllehkraft" Mbaltar sit ffi © h »r @ m aaaibiianglg mutually switching Xob»

Diplomatic s, a Drehrichtungss he ehalt and at least two Hilfsschütae are required, XeSiglieIa ice © Gleiciis t rommasehine einfachster type in Verbindtang EIIT two check valves is required * It has also the advantage that the Gleiehstrcoisasehine used according to the invention is more reliable in all Mllea as a power switch of any design » The DC caa machine b coupled to the drive motor a not only serves to feed the relay for influencing the rotor short circuit $ it can also be used in the same way to supply the control voltage of any required speed controller« In the same catfish can also be supplied to the Spaimiiag for the " tachometer"

Then it should be mentioned that the circuit according to the foundation is not limited to conveyor belt drives; it can also be used in the same way in other conveying systems, elevators, excavators, etc., with the same success on the application of kooiaea *

Claims (1)

Bateatassp raeh. s BiariefetQQg for the automatic introduction and lifting of the MufertarssehMsses glue Uaseiial ten on GBgemtTmmremmmm "with drives with AC-Aaynchrorjmotoren, especially for Fürderhaopel drives, characterized _t that the introduction and the lifting of a screwdriver Fig ÄuferS ^ ssehsmiiasaeisaeisäisäisäis a ^ ssehing means rotational speed means built-on direct current machine (b) takes place, which supplies the supply voltage for non- oxidized spa treatments (f) via dependency contacts (C ₁ , Cg) on the control lever (d) and via shut-off valves (g, h). BEOT _f BOVEHI S YOU _e Alct IengeeellschaJ't