Transmission Line Design for IOE Students

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TransmissionLine TransmissionLine Design 80mw100km

1.MostEconomicalVoltagecalculation

Themosteonomia!"o!tageisgi"en#$the%o!!owingem&iria!%orm'!a( Themosteonomia!"o!tageisgi"en#$the%o!!ow ingem&iria!%orm'!a( P * 1000

Lt

1.6

+

cos φ *  Nc Nc * 150

Eonomia!)o!tage*) Eonomia!)o!tage*)eo+,-.-/ eo+,-.-/ here Lt,Lengtho%transmission!ine,100km P,Powerto#etransmitte2,80mw os3,Power%ator,0.48 N,No.o%ir'it,1 Then'singthea#o"e%orm'!aweget

Veo

=135.47kv =135.47kv

Nearest5tan2ar2)o!tage,167k" Taking167k"asare'ire2"o!tageasit Taking167k"asare'ire2"o!tageasitismoreneartotheo#taine ismoreneartotheo#taine2 2 eonomia!"o!tage5ostan2ar2"o!tage!e"e eonomia!"o!tage5os tan2ar2"o!tage!e"e!o%transmission!ine !o%transmission!ine,167k" ,167k" 1.7ChekingTehnia!Criterion( 5'rgeim&e2ane!oa2ing*59L+,):;a"g,0.8 E'i"a!entJasho"er"o!tage,Tem&orar$o;"*)+/@O/NAC@/@5 ,G7/0.8/1=-/1.1-/1.1/1.7 ,7=4.07k" ,7=4.07 k" @romstan2ar2ta#!en'm#ero%ins'!ator2issre'ire2towithstan2a#o"e romstan2ar2ta#!en'm#ero% ins'!ator2issre'ire2towithstan2a#o"e e'i"a!ent"o!tageis7 7.7N'm#ero%ins'!ator2issre'ire2towithstan2ontin'o'so&erating 7.7N'm#ero% ins'!ator2issre'ire2towithstan2ontin'o'so&erating "o!tage( a.E'i"a!ent2r$1minJasho"er"o!tage,E'i"a!ent2r$1min "o!tage/@O/NAC@/5@ ,7>-*%romta#!e+/1.1-/1.1/1.7 ,7>-*%romta#!e+/1.1-/1.1/1.7 ,=07.7Kk" ,=07.7K k" @romstan2ar2ta#!en'm#ero%ins'!ator2issre'ire2towithstan2a#o"e romstan2ar2ta#!en'm#ero% ins'!ator2issre'ire2towithstan2a#o"e e'i"a!ent"o!tageisK

#.E'i"a!entwet1minJasho"er"o!tage,E'i"a!entwet1min "o!tage/@O/NAC@/5@ ,760*%rom ta#!e+/1.1-/1.1/1.7 ,6=4.1=k" ,6=4.1= k"k" k" @romstan2ar2ta#!en'm#ero%ins'!ator2issre'ire2towithstan2a#o"e romstan2ar2ta#!en'm#ero% ins'!ator2issre'ire2towithstan2a#o"e e'i"a!ent"o!tageis4 7.6N'm#ero%ins'!ator2issre'ire2%orswithingo"er"o!tage( 7.6N'm#ero% ins'!ator2issre'ire2%orswithingo"er"o!tage( 5;o"er"o!tage,*G7;G6+/ma.5$stemO;)/55/59 5withingim&'!se%o",swithingo;"/swithingtoim&'s!e ratio*59+/@O/NAC@/@5 ,*G7;G6+/1=-/1.1-/7.8/1.1-/1.1/1.7 ,-K8.>4k" ,-K8.>4 k" @romstan2ar2ta#!en'm#ero%ins'!ator2issre'ire2towithstan2a#o"e romstan2ar2ta#!en'm#ero% ins'!ator2issre'ire2towithstan2a#o"e e'i"a!ent"o!tageis> 7.=N'm#ero%ins'!ator2iss 7.=N'm#er o%ins'!ator2issre'ir re'ire2%or e2%orthe!ightningO;)( the!ightningO;)( E'i"a!ent9m&'s!e%o",e'i"a!ent !ightningo;"/@O/NAC@/@5 E'i"a!ent9m&'s!e%o",e'i"a!ent!ightningo;"/@O/NAC@/@5 ,--0/1.1-/1.1/1.7 ,86=.4k" ,86=.4 k" @romstan2ar2ta#!en'm#ero%ins'!ator2issre'ire2towithstan2a#o"e romstan2ar2ta#!en'm#ero% ins'!ator2issre'ire2towithstan2a#o"e e'i"a!ent"o!tageis4 !"

Voltage level Desc#i$tion

1.

 Tem Tem&o &ora rar$ r$o; o;"a "a&& &&ea eari ringa nga rossth ssthe e ins'!ator Contin'o's s) )o o!tage a. Co Cont ntin' in'o' o'so; so;"inD "inDY Y on2ition #. Co Cont ntin' in'o' o'so; so;"in "inET ET on2ition

7.

6. =.

5withing o;" O;) 2'e to !ightning

Ta#!e1( Ta#!e1(

Voltage %evel &kv' 7=4.07

"um(e#OfDiscs

7

=07.7K 86=.7K

K 4

-K8.>4 86=.4

> 4

Hene%rom Hene%romthe thea#o"e a#o"eta#!e ta#!ethe there'ir re'ire2 e2n'm#er n'm#ero% o%ins'!ator ins'!ator2iss 2issto to withstan2a!!t$&eso%"o!tage!e"e!ina!!on2ition%orgi"ens$stemis4

)e*ui#e+num(e#ofinsulato#+iscs=,

3.-i#Clea#anceCalculation a,minim'm2istane *!earaner *!earanere'irement+ e'irement+%roma!i %roma!ineon2'tortoan$ neon2'tortoan$ earthe2o#etan2isgi"en#$the%o!!owingre!ation( earthe2o#etan2isgi"en #$the%o!!owingre!ation( a, a, maim'ms$stem maim'm s$stem"o!tage "o!tage/G7 /G7 m 7G6 ,*1=-/G7+;G67,*1=-/G7+;G6 7,1=6.64m,1.=6m ,1=6.64m,1.=6m C!earane*!+,7a,78>.K8m,7.8>m #,1.-a,71-.K8m,7.1-m 2,*1.-a;7!+;tan60,>87.48m,>.87m L,aG7,707.K8m,7.07m Y,*La+;G*1*La+:/*;$+:+,6K8.17m,6.K8m %rom1;6to1;= Y;7,184.17m,1.84m C,#7!,K84.6=m,K.84m

theratioo%;$ranges

Ta#!e7( T a#!e7( Air !earane %o % orm the earthe2 o# e et*a+ Toweri2th* Toweri2th*#+ #+ )ertia!2istane#etweentwoa2aent ertia!2istane#etweentwo a2aent on2'tor*$+ on2'tor*$+ Horionta!2istane#etweentwoa2aent on2'tor*+ on2'tor*+ Heighto%theearthwire%romtheto&ross arm*2+

1.=6m 7.1-m 6.K8m K.84m >.87m

4.Con+ucto#an+toe#selection Line'rrentisa!'!ate2as 9,P;*G6/)!!/os3/N+ ,80000000;*G6/167000/0.48/1+ ,6-K.0-Am& Comåthis"a!'e o%'rrentwiththe'rrentarr$inga&ait$%romthe Comåthis"a!'eo%'rrentwiththe'rrentarr$inga&ait$%romthe gi"enstan2ar2A5Con2'torta#!eon2'torLEOPADiso%righthoie. @'rtherweha"etoBn2theeien$o%!inean2itsho'!2#e @'rtherweha"etoBn2theeien$o%!inean2itsho'!2#e4=F 4=F



Eien$,Po't;Pin ,Po't;*Po'tP!oss+ ,Po't;*P o'tP!oss+ 4=F

Loss,6/9:/*>-+ *>-+,70[1a!&ha*T70+] hereT, here T,maim'm maim'ma!!owa#!e a!!owa#!etem&erat're tem&erat're  Take  TakeT,  T,>- >-2egree 2egreeentigra entigra2e 2e Ta#!e6( Ta#!e6( 5N

NameO%  Con2'tor 1 Leo&ar2 7 Co$ote 6  Ti Tiger = o!% - L$n > Panther K Lion 8 Qear 4 Roat

70 >0.714 0.7-8K 6 K= 0.771 0.7>17 = -7 0.777 0.7>70 1 K8 0.18= 0.71K= 47 0.1-8 0.18K4 07 0.16K 0.1>77 0.177 0.1==6 6 1= 0.110 0.1600 7 6> 0.084 0.10>0 84 K

Tota! Tota! *ohm+ 7-.8KK= 7>.17-7 7>.70K8 71.K-47 18.K-07 1>.771=.=61= 16.006> 10.>0K07

P!oss*watt+ 4460708.1 >1 1007-744. 0K 100->44>. 0= 86=488K.K -> K14-717.6 84 >77>140.K 08 --6K416.> 7> =440008.8 == =0K06=6.8 K=

Eien$* F+ 88.4-K8K 7-4 88.8>640 41K 88.867>6 716 40.-=40> 80K 41.K=81>-4 47.KK476 =8K 46.-7-KK 846 4=.178K1 176 4-.1-8=0 K01

@ortheon2'torLEOP @ortheon2'torLEOPADthee ADtheeien$is88.4-Fwhihi ien$is88.4-FwhihisS4=F sS4=F so Con2'torQEAishosensineeien$4=F @oron2'torQEA Con2'tor2iameter,76.=-mm,0.076=-m RM%orin2'tane,0.KK88r,0.004161m RM%ora&aitane,r,0.011K7-m RMD,>.78m

5.Co#onaince$tionvoltagec#ite#ion 71.1/RM/!n*RMD;RM+/m/δ )i,  71.1/RM/!n*RMD;RM+/m/ Where, Where,m=roughness m=roughnessfactor= factor=0.9 0.9for forASCR ASCRconductor conductor Δ=relativedensity Δ=relative densityof ofair=0.9 air=0.9 !f"#Risin !f"#Risincm cm $ci=%%..&'v()er)hase $ci=%%..&'v()er)hase

!f$ci*$s&)er !f$ci*$s&)er)hase( )hase(design designis issafe safefrom fromcorona coronaeffect. effect. $ci=+.-.+&cm(-0.9-0.9-ln&/.+10.0+( =2+.90'v $s&)hase(=2+132=/.+'v 4ere,$ci*$s 4ere,$ci*$sso sono nocorona coronaoccurs. occurs.

6.Voltageregulation 6.Voltageregulation criterion 5oraconductor6ear, Con2'tor2iameter,76.=-mm,0.076=-m RM%orin2'tane,0.KK88r,0.004161m RM%ora&aitane,r,0.011K7-m RMD,>.78m esistaneo% esistaneo%who!e!ine*+,16.006>ohm who!e!ine*+,16.006>ohm 9n2'taneo%ho!e!ength*L+,7/10 K !n*RMD;RMi+/L ,0.16H 2

Πε

* L * e3

 GMD  ln   GMRc  Ca&aitaneo%who!e!ength*C+,

2∗π∗ε

,

ln (( 6.28 / 0.011725)

,8.8=/eK ,0.88'% Now9m&e2aneo%theLine* ,16.006>  =0.8= =0.8= ,=7.8>SK7.66 5'se&taneo neo%t %th heLi eLine*Y e*Y+

, ,6 61=.1-/C ,6.1=/e= ,6.1=/e=S40

,SK7.66;100 ,SK7.66;100000,=.78/e=SK7.66 000,=.78/e=SK7.66 $,Y;L,6.1=/e4S40 U,G$

A,B,C,Dparameterscalculation

/100000

A,D,*1Y-871.4K K=8 48 77>6.78K414 K.-40>-1 >0K7-7.10 66= >8 7708.184=K4 8.1>--16 >-67=1.0= 07K 77 71KK.=K01=1 8.8017-6 K0=100.7= 0=> 6K 71>>.=>7788 4.-01478 K>01-=.60 87= > 71K1.8>4==> K.-=7KK7 >06=71.K8 7-> 0= 7=16.>8K177 8.0886K4 >=K0K0.64 488 41 76-7.4867>4 8.>46488 >4--14.0> 608 => 7618.64>887 4.6>6>7- K=4040.0> 87K >7 760=.847-11 10.101=4 808114.-==6 => 7608.416016 K.8>=>6= >741K0.KK K0= >6 7-1>.>86108.66>0=K >>>886.81 7=7-.0670=8

1067K 4.4 117K7 >.17-0K -.> 166-K >.4 1=741 =.1-611 4.4 1>=77 =.8

1K6 18K 77>

7=0 7--

7K1 784

600 676-0 I' I  'n2ah

7-0 7K600 676-0

Deer

7-0 7K600



6767 6-0

K7 6.86-8 14 =.1686 -=.=>8= 6.7411 K1 6.>=4> 06 =.0=44 47 =.=4>7 76 =.4476 14 6.-788 6 6.8=04 -> =.18>0 7K =.->>8 =.48>1 7-

81 K.0-71 88 K.=K61 K.46-K =K -.-=67 -7 >.0046 7>.-670 =K.11-6 8K.K>67> >.>674 >6 K.0>>8 1 K.-=44 -4 8.08-7 >= 8.>K-K =1

0> 4.=-86 K 4.4846 7> 10.-K1 46 K.600> >6 K.8K71 18.-17> 87 4.77>K 16 10.018 8 8.4671 64.=K4= -10.084 14 10.K>= -> 11.-08 4K

>>= 8.8-->>8 184.=7>6K6 K71 10.0-11418 K.11=K-> 70K.K-K168 4== 8.=K>1=1 =64 4.7KK>=7 K7= 10.1>KK8 678.78=0K6-8 8.8K7-16 4-7 4.-7-404 -610.7=8-0 8=11.0==K= >-7

67 K08=-6.==8 K-=104.84 KK 80=047.K6 == ->4180.=4 >= >70-K1.11 ->K8041.61 -1 K=7711.=1 K4 816=77.>> 06 >>7K7>.07 8> K04801.11 >7 K>70K7.K> 78 814880.>K -K 886-K4.K7 1=

76>1.-11-1> 7670.6681=K 774K.=0K816 77K>.K7148> 77->.>77768 77>0.60=68= 7786.K7K== 767=.0>=K== 7>-0.40=117-81.04=4>8 7-=0.7=7-=6 7-77.K04KK1 7-7=.-16=4

4encethemosteconomicals)anis2+m.

12.!electionofmost 12.!electionofmosteconomicalc economicalcon+ucto# on+ucto#. . -066 778>006K7 7-7-777K0

Qo8, 5orconductorcostcalculation @et,costofsteel=Rs0)er'g Costof Cost ofAl Al= =200 200)er )er'g 'g :e).5actor=0. @ifetime=+years Sam)lecalculation,

5or6earG s)anlength=2+m,Al8eight)er'm=2D'g,Steel8eight)er'm=D'g Costof)o8erconductor >417> 1.7 788688> 0.6 74-==67 >.= 740110= 0.1 676-=K= 0

13.!electionofeconomicalcon+ucto# Ta#!e11(5e!etiono%eonomia!on2'tor Ta#!e11(5e!etiono%eonomia!on2'tor Name O%  Con2't or Qear

70 0.11 07

Tota! Tota! >*ohm+ 0.16006 16.006 > >

Ann'a!Cost Tota! T ota! Ann'a!E!e @orm on2 Ann'a! P!*kw+ Cost an2tower *s+ =4.40008 118076>. 7K8K1=48. 8== 847 7>>417>1.14 08

Roat 5hee& I'n2ah Deer

0.08 44 0.0K KK 0.0K =6 0.0> K8

0.10>0K 07 0.041>8 > 0.08KK7 17 0.08000 =

10.>0K 07 4.1>8> 8.KK71 7 8.000=

=0.K06=6 8K= 6-.186>6 K>K 66.>>718 60K 60.K00K8 06>

4>7K1K.K 661 8671>6.6 487 K4>1KK.4 -= K7>16=.8 -K1

788688>0.6 74-==67>.= 740110=0.1 676-=K=0.06

74801-K8. 06 606K>=84. 8 7480K718. 0660808K=. 84

So,8e So, 8ecan caneasily easilysee seefrom froma7ove a7oveta7le ta7lethat that6AR 6ARconducto conductor r8ith 8itha as)an s)an2+m 2+m 8ill7ethemosteconomicalconductorforthetransmissionlineasthesumofcostofto8er, conductorcostandenergylosscostisminimumfor6ARconductor.

14.DesignSpecification: 14.DesignSpecification: ELECTRICALARA!ETERS

PARA R AMETERS R S POWER (P) LE !" !"T# (L) !UM%ERO&'R'UTS(!c) !UM%ER O& 'R'UTS (!c) A'SR 'on*c+o,,  APARA R AMETER R  %PARAMETER   'PARAMETER   PARA R AMETER R  L !E !E  ! !U'TA !' !'E (L) L !E !E 'APA'TA !' !'E (') L !E !E MPEA !' !'E () L!ESUS'EPTA!'E() VOLTA"E R  RE E"ULATO ! ! E&&'E !' !' 'ORO!A!'EPTO! 'ORO!A!'EP TO!VOLT VOLTA"E A"E

VALUES 80m 100 $  $m m 1 %EAR S-nl/ c$+ $ + 1.0054

=7.8>SK7.66 6.1=/e=S40 1.0054 0.13 # 0.88 * 42.862.33

 

6.1=/e=S40 11.74 74.12 2+.90'v&hase(

!EC"A#ICALARA!ETERS PARA R AMETERS R S

VALUES

SPA ! ! LE !" !"T#

325M

T1

56559" 9 "

T2

4427.49" 9 "

T3

2788.219" 9 "

#

3.18M

#1

10.50M

#2

12.37M

#3

14.28M

TOWER WE"#T

.0 Ton/

.