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AEDC Notes

Notes of unit 2

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99 views11 pages

AEDC Notes

Notes of unit 2

Uploaded by

theproficient07
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Assignment No o2 Te 9 ihe ase aalvackal es ~ of clechiic_breakin | eacere mechanical breaking -2—————____—— 7 > Advantages i= —— ~~ @ BieckicGroaking any _snakching —as_—comp: chee Spes is_mare_smooth—and_withouk ared tn the othes —— roaintenance, tn absence of brake shass: ea due @ Higher efficiency. the Kinebi 2p. tential nexgy beacuse in mregens: hive i crolura back. (@ che _elechie braking —allow he —daive cpexale- at highe “peed and _al _havier loads: @ xthere 1¢_no-po Sbilily nf-failure af elechs beraking nyskena dlue 4 “heal-_as incase of mechanical Jbrraking- 2 1G at _provide- "eid beeing of Acad campared. _to- mechanical —brekeg- ____ motors and —costing--—__—— @_Smai\_weight 4+size.— bua) ep plain “pynamie- Greaking operation. eoith 7 ronedtenshies— _of follocaing- _ dative + @ scanned with OKEN Scanner —=This_is_sel_up_of dhe. _dynamic Breaking i ~————arbeostalic baking of de—shunl_mei* A_Sppt__gwilch_svi__has been. used ky —_Selecl_mode_ of. operation as either tig, 02 Baaking.. x Breaking Mode i= ~Toa_inifiate the —breaki ng—ithe shia 8 Rs lfered_tn_the breaking position. E Breali —_ gels. ~—__terersed ag. Compared esith camakure. tii . direction in the Newmal lead. - ~————=“Therefone the _ dliceckion_of_b-ralin —torgue— st “Produced iy the. —m ctor_due be this “anal 1 tumernt ts_exackty Seles the_opposihe _diredion- te —airectinn “ef amkehan nema ‘ Se= & = Wau ~ kvow ei | Rot Revie ats “Rat @ scanned with OKEN Scanner —h. 8 wilh the diagram Speed torque chairackemitic Se —— ~ = eeeplaincledhte teal ng—of_de _Senes_rnotor— = Comm 3) A cry fe — Pah \ hit _) hy BG, BB? a — cs fa, and _onmabyne_tdindings ~are_cannecked in series acmss the de Supply. Lbag' power |= ota dynamic brealcing _tmode the | te diseannarked & breaking nesishn Nal connected in sucha _eoay thet fi 1d _exrent _Cantinuns te fom in sam The painciple ‘ ak discussed for the -ather shoo dypes_ofde rooter + Speest. 2 “+ age sbaaling, “| Breaking initialed mea eS 4 Cini dt a Tt nag 2 monk. reed 7 7 error Bring SN mglor _ ue stops Croteng) Disadvantnges t= ——_____— ~The disadvantage —o £ dynaric_breakieg ielbal oe a ange power grid *gel_d jpiated in extemal _ scesistance_-This_ Power —i. jusl_tpasled in 7 scanned with OKEN Scanner are 4). Beplato Regeneralive breaking — of de Shug motor draw. speedtorgque == Neral moder” . tt = —— om co AL eS Suppy paige el Oj. ete, — ~ Regenerative Breaking :~ =the load cause the speed of the mi, ———__4m increase ahave the nammal Nigher - than the upply. rvallage ed Sea eee ee as_shoon 4 power rehire back fram 4th: -ormakire to pe Soince- Thu. mabyr_nad ada genenalor. : im aaa Ge Sy aoe LC oo f = ohenewer_genoralen is lnaded ih speed | —olecrease,__ cree ies pele at gpcamlien ‘ so ing_ttmabe — ____brreaking—parcess eff fRecbive, —— @ scanned with OKEN Scanner j i —. motoring torque hall hen Fed _seperabelly _pe_me toy dade —— 1 Gx Je. a mAng—2ngle behneen _=spe: ——> A | EI 2 Feld unconbrolled | - ar_| pe + 1 : aan deg Convertor [| ees _ Gut Explai OW opexation of si angle _phase—fully con! Sao \esthe pater _chrcil foro fill cary fr 4 deo —steperally excited_molnx_and “waveform for go and go’ are Sheen = “The _oxerage armature. roltage —Eo— either _ positive oa negative —clepending— on the value ete gee poing oe glee _and_allews_the_operahisn —___4n take —place—tn fixst—oa_fourth quadsant— _open.alinn!: eae —___ @peckifrer_made..C4<30")_*_maloring——-——_— the toave form forthe _qreclifienoperalion Ct cg) the. thyaishor 1_and_82 condi: Con 6 re p= es 2m Co. = Prec Te for xa <40° a is ave. @ scanned with OKEN Scanner STavevsian_ mode (295): Reg enexati nee Ascexrage _ovrmabure dbage fa f neg dhive “Tf mate's back eme CER) Peversed by, —————-frewersing field excitations the machine will -hehave as o 4 generator and will feed powen ahadk. ty po Lup ply = Th) is kn (On _a: nenabice — boreal — ~———+1f_demoloy. | S feoag. angle of, -ormidare consoles — eee ~A>Jo* Bas) Eel | -Geplain. Bites oporahie “of ae oe ata ole . —Oc:mahee die ith Pee SG ea bette pian cherasbeniets.c : SA chopper Can “puadace Q_variahle de— T @ scanned with OKEN Scanner a ef the de maton bo scan its Ss peed. io chopper based ye de mnotocrr res —_ e Nde is —applied ab the input of a chappe -Afixed — dco voltage i applied aomss the field winding ‘eockor, to__panduce a mabed field —cuement- (= A vaniable axmature volt 19.2 denived Speed 7 fora the choy peac—thal_can he nage red class: In ale to implement the armature + wolkage Control =Tergue = peed “characteris S__are ag Follow + . a a discontinuos ermelure ¢ Vl t= uly cycle, X ——ceokinuss armmahure - "These bype of @ scanned with OKEN Scanner | 124A 41 coa.npreSeperally ercile,) : dc motor has _an__amimahure oresishe, motor is_ cbnblled try _chopp ens quency__of 51 00 Hz. and so UNC ya), : by of 990 v- caleulabe 4 hhe—duby cation oy 1. | Bur = 86 vik ~—© - : co @ scanned with OKEN Scanner er 2 \:9 Tataoled) = |+9% 945 93-8 amp: Gort Taka : i 1 = 86 + Cn-8 x2) Pee ee bid Vas D%Vde— - ot bt Vo - 143 | Vie 220 1 D 20-69u% SSS Que 1) A Qony, 81S apm [so A de pescably exciled : pootor hos an armabure ae ET) 06. 2... i} ig -fed_frorn_single —phose crecti fren: enith Ac uae of g207_, SoH: Assume Continuse Conduction , Cal culake 1y Foring angle fox_araled_malnr torque of Goa-cpm 2) motor peed fora elect eraled_toapue. —— Given + . z N= 200 volt = N = 84S~ eeprm_ =a enabled) =152 8 Ld fins commenter derisce = “Ns = 990% f= sD} Ra = 0:06 2 ry 2 G00 wpm ~ Kg = 160° te fads: ) oy ak “Tebed 41s 5 Na _ak “Traled diatas)6e" Bes” | @ scanned with OKEN Scanner ee = 1g) yolk : He ee fal n= Svo 299 20. a cee rox ka dn coe 4 fr & kab hy oe — for ND coe Ep N z eae “- £51 = _sdo x 19) 185 7 pase G1 = lle voit ener ae he value of a: oubput ty oF the fu) tn ——__= | Canes pending bVew see Naeem ed + Ta crated) Ra cee =l6e+ Csoxooe) + sau Nat_= 13066 wolk £ — 2N2x220 . Cp Ay = 130-66 —, ae — 198 a =1\s0-66 ee poe al X12 Cos Co-6e) ere eens tse TE a ae Beene —___ vse oe x 220, qe ee eee eeeceeec eee é ‘ etl: @ scanned with OKEN Scanner Nao * An Ra = Poo Eun =-186 + (isp xo-n6) = -I47 solt oS we know +hab co Ee, = he ooo Er nN Me = Se xn £5 i =NW9X gas ig} We = 310-9 apm | | a, ————————— @ scanned with OKEN Scanner

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