gi0a vectd srtc di6n dong pha Eo vdr di6n rip pha U )
c/ M6y liim vi6c song song voi hjdi diQn v6_cirng
tdn, di6n ap 13 800 V. Didu cninn cor{g ::Tr!"
dqng do may ph6t ra rudi r6n ddn gid tri mdi a io uw, oang aicn tdng ruong nhien ri6u viio
HTn:i:[T:iHlJ.'#fi:: ff';l'.no"g oi,;;;;;;;"'u oi r]c ,ai;;;;; vecto trong
dl MAv van phdt ra c6.ng sudi tac
dtrng 10 MW cho rudi, nhung rai cridu cninn conj ',lriu{J^u^ khdng ph6t ra' bing cdch tdng ddng tiJn tu sao cho t.r ,nong-,,,"h tJ dudi ,6r
"u" tu tdng th6m
25%.va t4i gian dd vecto trong trudng hgp ndy, vd tinh
"o", Jt ^"lle;:
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(t didm ) 86 qua diQn trd day qudn phdn ung, ia
"i" tdi nao uonn ^ni.-'
2.OOngcokhongddngbo3pharototdngs6c,400Hp(1Hp=
746W),Z(O/4OOV,50Hz,dong dinh muc stato /6rr = 952/550 A , 1465 v/phrit, ddy qu6n stato ndi A/y, boi sd dong m6 may (truc
li6p) 1,v2y'16, = 6,0, b6i sd moment md mdy (truc tiep) Mnny'Mam= 0,9. Miiy co c6c th6ng so sau(ohms/pha), vai ciic gid tri ddy qudn roto da duoc qui ddi vd stato :
r/ = 0,00804 x7 ='0,0575 rrn = 0,086
Bd qua hien ilJqng phAn ung phdn ttng, diQn tr6 ti6p xilc cLa chdi than. r'z= O,OO919 x,2 = O,O57S xm=
1,722
a/ Tfnh tl sd: (ddng khong tai /dong dinh mfc), khi ddng co rdm vi6c 6 di6n
ap rudi 400 y ( t di6m )
b/ c6 thd d&ng phr,dng phap adi noi Y' A cho d6ng co tr6n rudi diQn 230 v
dd khdi rt6ng 1 tai co
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uu' h6i Moment m6 mriv ft nhdt le 350 N.m ? Tfnh ddng ra ,ay tren dudng day cdp dien khi
c/ D6ng co n6i ken dugc d0ng nhu mriy phat khdng ddng b6, duqc 16o b6i j turbine
nlrui {l"J ln,d6 dudc ndivoih-tdiphan phdicong suaivo_cirng.tdn, oien ep te 400 d6 dudc ndivoih-tdiphan phdicong suaivo_cirng.tdn, oien ep te 400
V. Mriy tam viQc 6 d6 truot s
;r;J lL rinh cong sudt tac dung phdt ra . choiSns tdn nuo.o hec ( ma sdr, quat gi6..) rd kh6ng
Luu ! rdng tm , Xm tdn tuqt rd diQn tr6, diQn khdng m4ch tt)t hod theo kidu mdc nu, ,,!o',,::;'rr",
dien Udng d]dng cfia dQng co. (adsbygoogle = window.adsbygoogle || []).push({});
3. OOng cd m6t chi6u kfch tr) song song 37,5 KW,24O V,17SO vlph, l6rn=
173 A, di6n trd ddy
qudn phdn (tng ru = 0,112a, di6n tr6 dAyqudn kfch tt rg1 _ 7O,ZO.
fl,jT#*" ddng cam ung trong cav qudn phdn ung ua"ror"n, tren truc mdy trong di6-u ki6n tai
:!il"#T&H.Ty,jj#,[i.Hil: uo" tidp? Di6n tr6 cdn mdc ndi tiep vdi 'rl{^"[^lru
cl Giam td thong krch. tr] cdn goz gi{i tr! tr} thong
krch rr} dinh mrc, momenr tren uo" u[,]noj"#jn"
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