Exp4 Transmision Line

Exp4 Transmision Line
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  Department of Electrical Engineering Indian Institute of Technology Patna Experiment No: 4 Study of Transmission Line Objectives: 1.To determine the A, B, C, D parameters for long transmission line.2.Study of erranti effect for long transmission line and compensation for it.!.To determine the performance of the transmission line.a #fficiency for different loading condition $ithout compensation and $ithcompensation. % &oltage profile across the length of line on loading condition $ith and $ithoutcompensation.  It is necessary that you should brush up your concepts regarding transmission line so that youcan get insight of those concepts while performing the experiments. And please follow the precautions carefully to avoid any accident. Brief details about the Transmission line simulator. The transmission line demo panel comprises a line model on per phase %asis ha'ing the length()) *+  'oltage of 22)&. The lumped parameter line model $ith fi'e cascaded net$or-s eachof them is designed for ) *+ parameters. General Information 1.Transmission line simulator is di'ided into si/ sections.  Section 1 consists of po$er analy0er, one ammeter, one 'oltmeter and connection for CTs.  Section 2 consists of eui'alent circuit for transmission line. ne pi 34 section represents ) -ilometer 3-m of the line and T$o 56C load units.  Section ! consists of s$itches for circuit %rea-er, connections for PTs and fault simulator s$itch.1   Section ( consist of impedance relay, o'ercurrent relay, selector s$itch for 56C load unit 1 2.  Section 7 consists of t$o 'ariacs, selector s$itches for inductance of the transmission line.  Section 8 consists of +CB and selector s$itch for capacitance of the transmission line and tap changer for tap changing transformer.2.Po$er analy0er 1 is internally connected at the sending end of the transmission line.!.Po$er analy0er 2, ! and ( can %e used independently.(.Po$er analy0er should %e used together $ith CTs and PTs. It should %e ensure that phase and neutral of meter should %e connected to the secondary of the PTs. S1  S2 of Po$er analy0er should %e connected $ith the S1  S2 of the CTs.7.Po$er Analy0er 2 3PA2 should %e connected to PT2, PA! to PT! and PA( to PT( respecti'ely. 3As the po$er analy0ers ha'e %een cali%rated $ith their respecti'e PTs. 8.Sending end 'ariac 3'ariac 1 is internally connected. &ariac 2 should %e gi'en %y the e/citation at primary side $hen used in the circuit.  Specifications Sending End Transformer:  Primary9 ) :11) :22)&, Secondary9 22)&, ! 9 127) eceiving End Transformer: Primary9 ):22)&, Secondary9 1;),1),1<),2)),21),22),2!),2()&, 27), 28), 2;),2) &A91))) =o of > sections9 7 #AC? S#CTI=9 )*+S. #ach section 9 6 @ !7.)m?1;.) m?!.7m? 37A ma/ 5esistance9 5 @ 2.8Capacitance9 1.().).8f L#NE $! !%ETE S: 5 @ ).)!27*+, 6@).(!;7mh-m, C@).)17fd-m, ).)2fd and ))!7ufd 3selecta%le or ())-ms95 @ 1!, 6@1;7.)m?, C@).8fd, ).fd  1.(fd.3selecta%le &Note: Do not ma'e s(ort circuit )(en inductance selection is belo) *+m,- 2  Capacitor selector s$itch E 7 nos.1 for each section.PS19 C @ ).8D,PS29 C @ ).D, PS!9 C @ 1.(D LO!D#N. /N#TS: L0 /N#T12 ! #!3LE $OTENT#O%ETE   9 1*, 1))F ES#ST!N0E 3!N: 5 667 SF19 7*1)F  1)* 7F, SF29 2*(2)F, SF!9 1*2()F, SF(9 8)7)F, SF79 !)2  18)F #ND/0TO 3!N: 5 6678 9+! TO 226+! SF19 ;.7&A, SF29 17&A, SF!9 17&A, SF(9 !)&A, SF79 (7&A 0!$!0#TO 3!N: SF19 ).D, SF29 1.2D, SF!9 !.17D, SF(9 8D, SF79 D L0 /N#T16! #!3LE $OTENT#O%ETE :  1*, 1))F ES#ST!N0E 3!N: SF192*2)F, SF29 <8<  7)F, SF!9 ((  1))F, SF(9 2(2  2))F, SF79 1(1  ())F #ND/0TO 3!N: 2+! TO 2;+! SF19 17&A, SF29 !)&A, SF!9 8)&A, SF(9 8)&A, SF79 1)m? E unity pf  0!$!0#TO 3!N: SF19 1.2D, SF29 !.17D, SF!9 8D, SF(9 D, SF79 12.7D!  E<TE N!L $OTENT#!L T !NS=O %E S: P5I9 (()&, S#C9 22)&, &A9 27&A E ! =S. E #/ternal for meters9 E<TE N!L 0/ ENT T !NS=O %E S: P5I9 1)A, S#C9 7A, &A9 7, C6.).7 E !=S. : e/ternal for metersI NTE N!L 0T =O #%$ED!N0E EL!>: P5I9 ! A  S#C9 1A, &A9 7, C69).7 E 31)A primary ma/ 1=. =O O0 ? EL!>: P5I9 7A  S#C9 1A, 7&A, C6 ).7 =O SEND#N. END $O@E !N!>AE : SE2 PT9 =I6 3=T#9 +AG 5+S IS !))&ac CT9 P5I 1)A, S#C9 7A, &A9 7, C69 ).7 %03BS +AI=S +CB9 2)A, 2P6#, C=T56 +CB9 2A.&A5IAC E S#=DI=H #=D9 8A&A5IAC E 5#C#I&I=H #=D9 8A O/T$/T OT!.E SELE0TO S@#T0,:  1 P6# 12FA, 8A !LL TO..LE S@#T0, 9 17A !LL 0ONNE0TO S 9 BTI:17, #6C+ +A*# #%$ED!N0E E!L>:  ?IH? &6TAH# +A*#, AJG9 2!)&AC 3:17K,L1)K OE 0/ ENT EL!>:  6T, CT S#C. 1A, AJG. <):2()& ACDC. %ETE S:OLT%ETE 1 2 ):;7&AC, +#C: S+P(7S (
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