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Traction Motor Characteristics

This document discusses the desirable characteristics and significance of using a DC shunt motor for traction applications. Key points discussed include that DC shunt motors can develop high starting torque at low speeds suitable for traction, maintain torque even with fluctuations in supply voltage, and have controllable speed.

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kingsushant874
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0% found this document useful (0 votes)
42 views29 pages

Traction Motor Characteristics

This document discusses the desirable characteristics and significance of using a DC shunt motor for traction applications. Key points discussed include that DC shunt motors can develop high starting torque at low speeds suitable for traction, maintain torque even with fluctuations in supply voltage, and have controllable speed.

Uploaded by

kingsushant874
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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2.

Traction
’motr 1.
8 folloT nq
+achion (
7. 4 1.motr °5 CH-3.
runng
paralll
3- 2. Dezirable -¢
The
3- motr
senes De
loaing Po
onAman Amen catacy
Overload
Tempong Suitoble Linean
Voltog Ac type
Indue
abihhyabil1ty ae Bene m Tia
fluchuahons Apead- chaaloduchon tfon otor t ction
Gk the
to to interrphon moter motr moter
h cteshu
ctie Aed to man bachon motor
mo
ue
cesiale ter which
and contro!
lihg characten Page-4
o miÀ and
re tac otor.
charactnso
sed
hin ths
hco in
yotm. en
moter ealy trochn Cort
(- 2
Lobstneo
hgh etf'ancy
Gulable ppeed- torcue ohansctenhes
io chanactem heo in di cateo that the
nihal motr shotd be hugh
and Inihal mo tur hould be lo
mot r Ahold be
hgApead motr Ahoudd be
cgh. Hena thereleh on betueen trdua

. parale uning.
5 They characten&hics Indcale Hal the motar
w th other
Can bun in paralat
þaralle!
distuban ca must be crald
motr
motur s panallel of ohen motr,
No kpaz kn prejent t5 þaralle optseh
Hese
motey,
3. voltage cluctuoh
Tas chanactenahes Indicateg
voltase t uctuahn takeo placc
ome elestubed.
motr shold not be
t94hen ahoud properg 4ter volHene
luctuahonp
fag

) Thes chkanacteiahes indicates hot


clesc onnecde
time iBerval then operehan
Ahold not be abtecd
Over load capacaty
Thes characten» tes Ihdcata thal th
otor es n tachn Aye m must
have voy tigh venlood copauty
becau limtehng
lo a q toen . în teshival
feas n load ten becom ve y
oven load capa cehy
prent in te motr then it can not
propery dve ian overloadad aD

6- Selt-relievmg rfery
TRes chanactens hreo Inoicaly that
heat i» geeaed
it lange amount motr hen jE
should auto nahcaiy releae
qmount TRo aito ehe
a tochon motor.

Amenabilty to pesd conto


"Thes charaetenàhoo ot truchon motr
In dlicates hat pesd contol kac
he achon motr
must be þresenh tô
pead contol a 13hachon
vey - veng
mot
oren
bachoo noter t4 poor then

Can thout amen, ability to ipeed


Con ol
tgood.
ability to electie brealkng
9men
"ke
venyproperhy
tmpoant tor a tachon. 1k good
g00d
pcocnt hen
eloctnc braleig
peod anel
Iimitahon Weght
9 0urr
to ou put p
Accorcung
achon moter bropa.
motor houlo be
aho C
achn mot
he
be
avo(oed,
Ao thould
metr hraan
ch
haracenp
he desrale eplan
ly analkysi bove n
etnyhgh beil han moter les
echon ved be
be
wil loses ik lesA
oh moter tachn ebtceneg High
atee. n robtes
l)motr tachon the ha
atong
mechancally
then
more motr
iy betachon a
ghould
be notr
trachon
)
Robuot
ne
Page-5
Dc genes motr
Signicance Över hunt moter

de lcno o Hhot the eeahon


) gven by

bc ghint moter
contan

[rom edn
egn () and it cle an fhal
DC gemes moter
gemes
De

Hhunt motor So, e can Aay that


due to
lage
De Aene mot
amount
togue
tachon and bc aunt mofr
fose-7
DC e nes

Ce the lsportant
Follo nng ten'e motr as tahon motor
Dc

1. Te dc tenes moter Can


develop
torue - So, it t
Jood bechon þupoe.

2. In bc Bene
motor, the hegh
toreue i de veleped ot
ttahg
low Apec
kr tachon pwrpo}e.
DCenes mpotr
3. We cno that
Bitable fr parolel runn ing
4- for lange amount torea,q
De Aenes motr loes not redune
cwnen So, ne
Can hat Can þroduce
minimum
The Dc nes motr an þroduce
h
less amount ot paukng
lod.

The Jpead be
bc Aenes notr
be
easl Con rollable

The torque of D
not affeckd due to ckange iD ppy
vo ttege
Tke operahon o bC enes motor
I more steble comtone to other
onotr

We Know
Know that the horge pouen

H-P

hal due to tugh tngua


true
So, We can ay
Aenes moter output poren y
Dc
high bc ney
l . E overal
natr
Fupope
Page-g
5 Ac mot fer teachon
Ac mota ane
folloceitachon
n pwpo he
ppope.
wro tr

( 4-¢ Ac Aemes mot


3- hduch an
1nduch on
motr
Line an in duchon moter

4- Ac tene mot!

explan 1-¢ Ac jenes moter by


e
ting olleaing fointa. These point cleaty
eplain that 1-¢ Ac kenes motr
autng tachon
4. TRe chanactenphcs
þoperty Ac enes mofr

TA vOg-vey imillan to be senos


rmotr. So, it can be also wned n
trachon tem.
2. Let us conAiden peed tre
4-d Ac pens
charactenip ho wno bloc.
motr as stown
Apead AC

Torque ’ ab
rom bove ash it i) cleas tha
m1nnUM an

For torlue Apeed


AC enes moter i lower then De
senes motr
tordue amahe
Let ws Congides
coneides
cwsent charactenheo o Ac 4en'eo
notr as ohocon below. mot
penes
, bc AcAenesmota

iF ckas thah
Prum above
ACjenes
DC enes

motr
fose-t1
4- The Ac Jenes moter Can be
a louen
at Hur denaty opeh
Due to louen
{lu dety on loses wll be mini
wll be maX| muro.

5. Here Aa
AriÝ gape i) vey pmall" so,'
cwwat wlU be minmum.
magnehng
6. lHere Celd skn iA laminats o So
cw lop become minimum

94 car be

its oferahon.
8. Here ve

tachn prepety i veny hugh.


Ac Renes

Tke pourn factr ) poor


The maximum
line
2.
henaaly,
tachon 2evice
mau n
3-4 lnduchon motor
Ne can tplaun t bduchon mo ter
a hachon motor by usng 7oll
ropet
1 A 3- oduchon aport robst in
natune. So, it mechani
hani caly
ptrong
3-d induchon mote regune ley
So,taving good
thachon properg
loduchon tmotei
3. TRe operahon o
trouble ee,
4 duchon moter i! oferaled
a high voltage D

6.
6- Here autmahc reqent rahve
baking 4 pozible.
over focs
hav
C. Lineaz induchon Motey
Dekn The tyre of 3-d induchon motr
whch can þrodue linear mmote
A lCn own linean induth on
motor

Con gtuchen- Let us


Congider a di agam
ahich repreent Conytuchn cf
LIM hon belo.
1-dto 3
ConYey for

primang ’orce

Secondag pant
We can eplan the contuchon 5
LineanL lhduch on moter by s g
sollocethg pothts
Page- 14
Here |- to 9-d fer l
3- conver kr
yesen in the locomohve
Conve ten Can gnve 3- AC

2 Here tator C7nding


wndina l þrenen n
the prinay Pau
Here
3-4 cindng
he prinay par°. Thss uinng
1 t ing
he converte

4. Here r a
kr linear indu chon motr pecondarg
5. Ths ral can s thort cirauttd

je condag
The anaui gote betueen prmaA and
medium.
jeJe conda e
brokiy te ee to abih Amen
contot fdAmenobihty
to y
copoc
Temomg ovevl
ado
4
fluchahe Voltege
3.
chanactey
ten tos d-peo ble Suit 4.
muda hen honaceaha Dezioble 2.
t,duchon onine
mooa (aDanng
mooN bachon 4.
ate ( hoand ndo Toction CH-3.
Page- 15
Operahan ; whun 2ingle phase Ac
Kpply ) gven to it then
i+ Ti8 con ver fed in to 3- ¢ Ac Bupp y
Due to thes magnehe b'd
1 develeped, due to Hes
fore ( developed, de ho Hes tree
pant tr to move

dçrechono
HereSthee engne lA ng
dnd
jecondary
Heve fecondany i tehinany ond prima y
Is moving s0, eng1ng tn to moves

I5duchon oteo

Aovon taye o linear induc hon motr


advan tog t
follolinea
cng induchon motr
les m ntenane
1.
lesp ibjhad co}t
lo w
3 Here mechacal are ve y
4 st i having tgh Apesd
Pag
lere over Ix no þresenk

Llere achve ebkert does not depends


Apec ol.
Were pouen to wight roho i ve

PiBadvontoge lina an induc bon motr

gt having þoor ettien


gt 2 having po þo actr
SOre
mognahng
Here
mognehe loEpeg more.

APelicaha ot Linaan in ducher oter

he ln oppiasor
linean induehoo motr
1. Tiacho motr
2. Convayer belt
8.
Haueler
5. door operohon
sliding
þullen ml
yand
Clectmagehc pup.
Iinean induchon
clasieabon motr

2. Double idad LIM


1. Singe gidad LIM

Moving primery ond Novng scorndar


Pixed ecen do g
puimay
1. Single ided LIM
The type ot LIM hich ony
cotndng
Bicled LIM.
thene type
Ghenerly
Singo Bidad LIM
1. Moving imay oncl fixed pecon day
Ringle ilad LIy
2- Moving peconday and Ead prma
Fingle Alodad
Bicad LIM
Page-18
Movi prma and kxed pecon dary
tingla &idad LIH

TRe type Bingle Ridad LIM 1b chich


prima pant i moving and peconday
not mov ing knoon
movig pimag and fxa fecond a y
ingle iced LIM
1e s cons iden c dagm wsch
repreet constuchin ot hes mor as
hoon below.
jecendag
fernomdhst
Plu Aluninium
sheat

motiorn Pnma

havng feomegnhe
Conn ected wrth aluininum &thact- 9E

Here &lodted
jecondany
portior lÀ uarg
hautihg hdg
Here lux I4 prennt befuen prinay
and bo th
7econ da
Page-1

Here pmmar 12 moV ing and

feconda
Concapt À
This
he to chon

Here mohion prim ay oppoAite


4o he

2 Moving econday and kxed primad


Bnqle gided LIM

’ The type o ingle pide d LIM In shct


dey pat moving and primay

pat i not moving ix known al

moving pececon day


dag and f'xd pina
Bingle pided LM.
) Let y con Rder
i der a a dagam utich reprean
Contuchon t thes
Hey moterr as hon belew
Fermgnahe
Alunun

pima
2

mag nohc aheet Conneced


havi
7ecendaj
lert. lol ted poxhon ong as priman.
4ere
ng cndig
Here lux A present between þrimary
both
and econdg not
Here pimay fmovingg ond pecon dag
tsachen yalem Conveyr bet yolem.
ldere mohon

diechon

Note - The maun ds advontoage of


Bingle gidad LIH non liean
me Aided aus qape To avotd
thiy ds advonta4 Double Rided
IInea ihducho mtr
Page-2|
2. Double R'dod LIM

The type o7 LIM In hrch primay i


þresen bot i de iA Cnown a

double gided
2ided LIM
)
Generally, maving
fecon day conatnuchon
pimag and

tyre t moBor
Con gidn a
ddagam chich
reprennt dousle &ded LIM

primarg
mohn primarg
When moving dgton c (A lange
Recondagasi2e iÀ qhater than
hown below prinay
Bide as
Page-2
-pnmag
JRconday
prinag

hen moving des tence


I} nal hen
(econday ie I) Bmalen
Bmallon than prinay
gicle aLs khown belocs.

Here prn many aving 3 ornding ang


pecondany IA not hawing - tnding
4ere an gape la edual due to both
Aide f pi mag aindng
) 9t Consfuchon iÁ more camphcatd to
the inge pided L[M.
Page-23
Comþarior beteueen LIM and Iy

We can compane LIH and fM by taking


tollacotng point.
Induchon mo tor |inear Induotoo moto
(IM) (LIM)
1. The type t s-d induchon 1. The type o -
moter wuch produces 1nduch'on ootr whvch
rotah ondmohoo (lenocon produces lnean mohon
Toduchn moter. LÀ leno wn as LtM.

2- 9+ is having mallen2. gti


9t taving lagen
jape
3 Here
|3- Here magnehe hed
I& coninoy l not continuoui

4. Here magenitin 4.
Here magnehng
Cwsen i: o Cet

6. Here rotor
low. restatence6: Here rotr res totnce
6. 1Here relucton
highb
low
6. Here Ye lucfance (4

Here leocag cUne


LË low.
ma. ere eata
Page- 24
T duchon motr Linean Ipducher tnotor
[LIMJ
gB i8 ha Ving high having loco
pouen fctor pourn factor

et
having
cane
9. 9t is having low

st ls thavng low lo. 9t i having hgh


loA A.e

Here þowen to |- Here boeren to


wwegh raho Ales taho
more

12. Lesp amount ot More


heal ig geerata
generata
13. Here cui gape lo l3. (4ere cun gepe
limited
Ia. 94
langer
lesA Conty mo re

coat ly
Page
Com pari gon ok dr bfer ent
DC ene motr Ac tinge pha mot
1. The type of Dc motr 1. The type of Ac moto
In wch hield winding wch tlces |¢ Ae
Connected n enes C
aten l; Cnoop Ac 3:ngle phane motor
Dc Benes moto

2
2. Here a gape l
and nal
not uniom.
Here nagnehe field 3 Mere maggpahe hed
I) Continuou () continubus
4- Here
4. Here megahn nall

4. 9 produceo anga 5 9t produes anguan


velochy veloy
6 9tis not having 6. gt ty having lep
poutn 7ackor. pouen tclor

7. 9t I having meduena. s4 a having befter


et7aany
etficny
tane Raluay e7gerohon
Wazhing mlc
Jracha

3- a o tor lnea oduchor motr


CTnduchon motr)
The 3- Ac ootoy 1. The 3- mo ter wh'ch
whch producen brodu Cas
rotahon mohon
tnoon non lnean
motuY Induchan Induchop motor
2 ee ai gpea 2- Here not
uni k and mal uni7om and
3. Here Here manehe sldu
not con tinesel.

4 Here magnehing a. Here agnehsng cUne


hgh
5: 9 os
pro dces anglan 5 9 produeo linaan
veloty velo chy
6 94 having vey
Aaving
medium pou
lesA powc facfor
tactor
having vey
ethn esti ant
8
raulot
railuy Cane,
Pag- 2?
tt Vaiow controk melhods applh ed to toachon
motor

1.4 Contol method


The me thod by wtrch a con tolled pupply y
gven to he ttachon moter
Contol method.
Con trol method
2 Reduune ment f
ane
reduinemnent o
FolletA
Control me th de
connect the achon motor
9t can

exta
9} can
decreasn
tteztng
an þroduce mooth acce leabon

gt Can decrean the jerk dnng lhe

motn
e can þroperly ogut tha fpesd of
trachon motor:
e g can give regenerahive
2/ve þroper maibtenonca to te
We Can
method odelaho rh
m pulse
thod. toangihon
me Brcge )
trangrhn
ho me cut short
r
thod tongihcn
me dcekt open (6
mehod -paualle Se'es (C)
l type 7ve
of G1eneralmethod
thene
ly
mclhod contol oftyre +.
Page-2&

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