Antรณnio A. Roque11,2 e Josรฉ M. Ruiz3
Artigo Tรฉcnico
1
DatAnรกlise, Serviรงos e Tรฉcnicas de Manutenรงรฃo, Lda, Oeiras, Portugal 2
IDMEC/ISEL - Instituto Superior de Engenharia de Lisboa, Departamento de Engenharia Mecรขnica, Lisboa, Portugal 3
DatAnรกlise Espaรฑa, SL, Madrid, Espaรฑa
aroque@datanalise.pt ยท aroque@dem.isel.ipl.pt jcalado@dem.isel.ipl.pt ยท jruiz@datanalise.es
Controlo de Condiรงรฃo de Motores Elรฉctricos de Induรงรฃo Trifรกsicos (Anรกlise de Vibraรงรตes versus Anรกlise de Corrente Elรฉctrica) 5HVXPR ยณ 2V PRWRUHV HOpFWULFRV H VREUHWXGR RV PRWRUHV HOpFWULFRV GH LQGXomR WULIiVLFRV ID]HP KRMH SDUWH LQWHJUDQWH GR DFFLR QDPHQWR GD PDLRULD GDV FDGHLDV FLQHPiWLFDV H[LVWHQWHV QD LQG~VWULD 2 REMHFWLYR GHVWH WUDEDOKR p HVWXGDU RV GHIHLWRV TXH RFRUUHP QHVWHV HTXLSDPHQWRV H VREUHWXGR HVWDEHOHFHU XPD PHWRGRORJLD TXH SHUPLWD VDEHU TXDLV GDV WpFQLFDV GH GLDJQyVWLFR ยฒ DQiOLVH GH YLEUDo}HV H RX DQiOLVH GH FRUUHQWH HOpFWULFD VHUmR DV PDLV HILFD]HV RX DV PDLV VHQVtYHLV QD GHWHFomR GHVVHV GHIHLWRV IDFLOLWDQGR R SURFHVVR GD DQiOLVH GRV GDGRV H UHVSHFWLYR GLDJQyVWLFR
1. Introduรงรฃo
10 ยท MANUTENร ร O
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Figura 1 โ Quadro de distribuiรงรฃo de avarias nos motores elรฉctricos de induรงรฃo.
WULDLV &RP D JHQHUDOL]DomR GRV YDULDGRUHV GH YHORFLGDGH HOHFWUyQL FRV DWUDYpV GD YDULDomR GD IUHTXrQFLD GD UHGH HOpFWULFD GH DOLPHQWD omR FRPHoRX D VXUJLU QR PHUFDGR FRP JUDQGH DSOLFDomR D VROXomR GH PRWRUL]DomR TXH DVVRFLD D YDULDomR HOHFWUyQLFD GH YHORFLGDGH H R PRWRU GH LQGXomR (VWD VROXomR HQFRQWUD VH HP IUDQFD H[SDQVmR QRPHDGDPHQWH QDV LQG~VWULDV GH SURFHVVR RQGH D YDULDomR GH YH ORFLGDGH VXUJH FRPR XP SDUkPHWUR GH FRQWUROR QD RSWLPL]DomR GD HTXDomR GR UHQGLPHQWR 6mR H[HPSORV GHVWD VROXomR R FRQWUROR GH JUXSRV HOHFWURERPEDV RQGH R SURFHVVR H[LJH FDXGDO H SUHVVmR YDULiYHLV RX R FRQWUROR GD YHORFLGDGH OLQHDU QXPD PiTXLQD GH SURGXomR GH SDSHO )RL H[SUHVVD PHQWH SURMHFWDGR H FRQVWUXtGR SDUD HVWH WUDEDOKR XP PRGHOR ItVLFR SDUD VLPXODU RV YiULRV GHIHLWRV FRQVWLWXtGR SRU XP PRWRU GH LQGXomR WULIiVLFR DFRSODGR XP YDULDGRU HOHFWUyQLFR GH FDUJD XP YDULDGRU HOHFWUyQLFR GH IUHTXrQFLD H XP TXDGUR HOpFWULFR (VWH PRGHOR ItVLFR
Artigo Tรฉcnico
- Frequรชncia passagem das barras do rotor $ IUHTXrQFLD GH SDVVDJHP GDV EDUUDV GR URWRU p GDGD SHOD H[SUHVVmR
fpbr Nr nbr
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RQGH nbr 1~PHUR GH EDUUDV GR URWRU Nr 9HORFLGDGH GH URWDomR GR URWRU
- Frequรชncia das ranhuras (slots) do estator $ IUHTXrQFLD GDV UDQKXUDV VORWV GR HVWDWRU p GDGD SHOD H[SUHVVmR
fse = Nr nse
RQGH Nse 1~PHUR GH VORWV GR HVWDWRU Nr 9HORFLGDGH GH URWDomR GR URWRU
C. Anรกlise de vibraรงรตes โ Espectros tรญpicos โ barras partidas 2 HVSHFWUR GH IUHTXrQFLDV WtSLFR UHWLUDGR GR VLQDO QR WHPSR UH FROKLGR QXP SRQWR ItVLFR GR PRWRU SRU H[HPSOR ODGR GR DWDTXH QD GLUHFomR YHUWLFDO H DVVRFLDGR DR SUREOHPD GH EDUUDV SDUWLGDV DSUH VHQWD D IUHTXrQFLD GH URWDomR GR URWRU [USP H KDUPyQLFDV [ [ [ ยซ [ 5SP FRP EDQGDV ODWHUDLV j IUHTXrQFLD GH SDVVDJHP GRV SyORV fpp fd p 3DUD VHU SRVVtYHO YLVXDOL]DU DV EDQGDV ODWHUDLV p QHFHVViULR TXH R HVSHFWUR VHMD GH DOWD UHVROXomR OLQKDV GH UH VROXomR H IUHTXrQFLD Pi[LPD GH LQWHUHVVH ยฒ )PD[ ยฒ QmR VXSHULRU D [ 5SP 6H DGLFLRQDOPHQWH IRU UHFROKLGR R HVSHFWUR GH DOWD IUHTXrQFLD FRP )PD[ VXSHULRU D [ D IUHTXrQFLD GH SDVVDJHP GDV EDUUDV GR URWRU fpbr Nr nbr VHUi SRVVtYHO REVHUYDU DV IUHTXrQFLDV [ H [ fpbr FRP EDQGDV ODWHUDLV D [ fl fl IUHTXrQFLD GD OLQKD
Figura 4 โ Severidade da condiรงรฃo do rotor em funรงรฃo do estado das barras.
G. Anรกlise da corrente elรฉctrica - outros defeitos 2V GHIHLWRV WDLV FRPR H[FHQWULFLGDGH HVWiWLFD H[FHQWULFLGDGH GLQkPLFD H GHJUDGDomR PHFkQLFD RX HOpFWULFD GR HVWDWRU VHUmR DERUGDGRV QRV SUy[LPRV WUDEDOKRV
Referรชncias > @
D. Anรกlise de vibraรงรตes - outros defeitos 2V HVSHFWURV GH IUHTXrQFLD DVVRFLDGRV DRV GHIHLWRV WDLV FRPR H[ FHQWULFLGDGH HVWiWLFD H[FHQWULFLGDGH GLQkPLFD H GHVHTXLOtEULR GH ID VHV VHUmR DERUGDGRV HP SUy[LPRV WUDEDOKRV
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E. Anรกlise da corrente elรฉctrica - MCA ou MCSA
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12 ยท MANUTENร ร O
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