Kegagalan Eksitasi Pada PLTGU Gresik
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SEKOLAH TINGGI TEKNIK PLN
PEMELIHARAAN PERANGKAT SISTEM EKSITASI UNTUK
MENINGKATKAN KEHANDALAN PADA PLTGU GRESIK
PROYEK AKHIR
Disusun Oleh:
BILAL JOKO SURATNO
NIM : 2012-1-0!
PROGRAM PENDIDIKAN AHLI MADYA DIPLOMA TIGA
TEKNIK ELEKTRO
JAKARTA,
2015
PENGESAHAN
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Proyek Akhr De!"#! J$%$&
PEMELIHARAAN PERANGKAT SISTEM EKSITASI 'NT'K
MENINGKATKAN KEHANDALAN PADA PLTG' GRESIK
D($($! o&eh :
)ILAL JOKO S'RATNONIM : 2012*+1*0+
D#-$k#! '!.$k Me/e!$h Per(y#r#.#! P#%# K$rk$&$/Pe!%%k#! Ah& M#%y# D&o/# T"# P#%#
SEKOLAH TINGGI TEKNIK PLNTEKNIK ELEKTRO
H#r ($o!%o
PERN"ATAAN KEASLIAN PRO"EK AKHIR
J#k#r.#, J$& 2015
D(e.$-$,
Ir S$#r!o, MTDo(e! Pe/3/3!"
Me!"e.#h$,
N$r/#. P#(r# ST, MTKe.$# Pro"r#/ S.$% D&o/# T"#
Tek!k E&ek.ro
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De!"#! ! (#y# /e!y#.#k#! 3#h# Proyek Akhr %e!"#! J$%$& :
PEMELIHARAAN PERANGKAT SISTEM EKSITASI UNTUK MENINGKATKAN
KEHANDALAN PADA PLTGU GRESIK
! /er$#k#! k#ry# .$&( (#y# (e!%r %#! 3$k#! /er$#k#! .r$#!, (#&!#! #.#$
%$&k#. %#r Proyek Akhr #.#$ Skr( y#!" .eh %er"$!#k#! $!.$k
/e!%##.k#! "eh Ah& M#%y#, #.#$ S#r-#!# Tek!k, 3#k % &!"k$!"#! STT*PLN
/#$$! % Per"$r$#! T!"" !, (er.# 3e&$/ er!#h % $3&k#(k#!
Per!y#.##! ! %3$#. %e!"#! e!$h ke(#%#r#! %#! r#(# .#!""$!" -##3 (er.#
3er(e%# /e/k$& (e"# re(ko -k# .er!y#.# er!y#.##! % #.#( .%#k 3e!#r
Gre(k, J$& 2015
BILAL JOKO SURATNO
NIM : 2012-1-0!
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U#APAN TERIMA KASIH
De!"#! ! (#y# /e!y#/#k#! 3#!y#k .er/# k#(h ke#%# :
B$%$& I'( Su)$'n*+ MT sel$&u Pe,i,in. /I
y#!" %e!"#! ke(#3#r#!!y# .eh /e/3erk#! e.$!-$k, (#r#!*(#r#! (er.#
3/3!"#!!y# (eh!""# Proyek Akhr ! %##. %(e&e(#k#! .e#. #%# #k.$!y#
Ter/# k#(h y#!" (#/#, (#y# (#/#k#! ke#%# )##k H$'i Su)*n* sel$&u
Pe,i,in. /II y#!" .eh /e!"6!k#! /ek$k#! e!"#/3! %#.# % .e/#.
ker-#!y#
DATAR ISI
Le/3#r J$%$&
Gre(k, J$& 2015
BILAL JOKO SURATNO
NIM : 2012-1-0!
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Le/3#r Pe!"e(#h#!
Le/3#r Per!y#.##! Ke#(! Proyek Akhr
Le/3#r '7##! Ter/# K#(h 8
D#9.#r I( 8
D#9.#r G#/3#r 8
A3(.r#k
BAB I PENDAHULUAN
11 L#.#r )ek#!" M#(#h1
12 T$-$#! Proyek Akhr2
14 M#!9##. Proyek Akhr2
1 R$/$(#! /#(#h4
15 )#.#(#! /#(#h4
1; S(.e/#.k# Pe!$&(#!
BAB II LANDASAN TEORI
21 Pr!( Ker-# Ge!er#.or5
22 S(.e/ Ek(.#(12
221 S(.e/ Ek(.#( De!"#! Sk#.14
222 S(.e/ Ek(.#( T#!# Sk#.1
22 S(.e/ Pro.ek(1;
241 Pro.ek( Excitation Failure#.#$ Ke"#"#! Ek(.#(20
242 Loss Of field Protection atau ro.ek( Keh!"#! Me%#! Pe!"$#.22
2421 G#!""$#! H!" T#!# D(er.# A%#!y# S& P#%#2
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2422 G#!""$#! D(er.# De!"#! A%#!y# S& P#%# Ro.or25
2424 Rey Pro.ek( H!" Pe!"$#. Ge!er#.or2+
BAB III KEGAGALAN SISTEM EKSITASI
41 Pe!"er.#! '/$/ Pe/e&h#r##!40
411
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DATAR GAMBAR
G#/3#r 21 Ske/# Pr!( Ker-# Ge!er#.or ;
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G#/3#r 22 D#"r#/ Ge!er#.or [email protected] 4
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S(.e/ ek(.#( #%#h ((.e/ #(ok#! &(.rk [email protected] (e3#"# e!"$#.#! #%#
"e!er#.or &(.rk #.#$ (e3#"# e/3#!"k. /e%#! /#"!e., (eh!""# ($#.$
"e!er#.or %##. /e!"h#(&k#! e!er" &(.rk %e!"#! 3e(#r .e"#!"#! ke&$#r#!
"e!er#.or 3er"#!.$!" #%# 3e(#r!y# #r$( ek(.#(!y# S(.e/ ! /er$#k#!
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($%#h &e3h %#r 20 .#h$! /e(k$! %k$k#! !(ek( (e7#r# 3erk# .%#k
/e!$.$ ke/$!"k!#! .er-#% "#!""$#!*"#!""$#! y#!" /e!"#k3#.k#! $!. .r
K#%#!" "#!""$#! y#!" .er-#% (#!"#. ($&. $!.$k %.e/$k#! k#re!# (!y#& y#!"
/$!7$& h#!y# (e(##. k#re!# 3$k#! %#r ke-#%#! y#!" (e3e!#r!y# .e.# k#re!#
%#r er#.#!*er#.#! ((.e/ ek(.#( y#!" ($%#h .%#k 3eker-# (e7#r# o./#&
H#& ! .e!.$ (#!"#. /er$"k#! 3#" e/3#!"k. k#re!# /e!ye3#3k#! e!$r$!#!
keh#!%#! e/3#!"k. .er(e3$. '!.$k /e!#!"#! er/#(#h#! ! %k$k#!
($#.$ .!%#k#! Pe/e&h#r##! korek.9 %e!"#! 7#r# /e/3$#. ($#.$ %e!.9k#(
"#!""$#! y#!" % .$-$k#! $!.$k /e!"e.#h$ .er&e.#k %#r "#!""$#! .er(e3$. %#!
h#& ! .er3$k. (#!"#. e9ek.9 (eh!""# 3(# %k$k#! .!%#k#! er3#k#! #%#
er#.#! y#!" 3er/#(#h %#! -$"# 3(# /e"e/3#&k#! keh#!%#! #%# $!.
e/3#!"k.
K#.# k$!7: ek(.#(, "#!""$#!, .r, %e!.9k#( "#!""$#!, keh#!%#!
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BAB I
PENDAHULUAN
1(1L$4$' Bel$&$n. M$s$l$h
P#%# PLTG' Gre(k (e&$ %k$k#! e/e&h#r##! (e7#r# 3erk#
$!.$k /e/er.#h#!k#! keh#!%#! #%# $!. e/3#!"k.!y# H#& !
/e/#!" 7$k$ e9ek.9 %#! %##. /e/!/#&(r .er-#%!y# "#!!"$#! y#!"
%##. /e!ye3#3k#! keh#!%#! e/3#!"k. /e!$r$! Ak#! .e.#
/e!"!"#. $/$r %#r er#.#!*er#.#! #%# e/3#!"k. y#!" ($%#h &e3h
%#r 20 .#h$! /e!ye3#3k#! .er-#%!y# "#!""$#!*"#!""$#! y#!"
%(e3#3k#! %#r k$r#!" o./#&!y# k!er-# %#r ko/o!e!*ko/o!e!
er#.#! .er(e3$. Terk#%#!" "#!""$#! y#!" /$!7$& .%#k %ke.#h$
&e.#k!y# k#re!# (!y#& y#!" /$!7$& h#!y#h (!y#& #&($ (eer. y#!" .eh
.er-#% #%# ((.e/ ek(.#( %(#h (#.$ $!. PLTG' Gre(k S!y#& #&($ .$
(e!%r #%#h (!y#& y#!" /$!7$& h#!y# (e(##. %#! 3$k#! %#r ke-#%#!
(e3e!#r!y# Pe!ye3#3 .er-#%!y# (!y#& #&($ ! 3#(#!y# k#re!# k!er-#
%#r ko/o!e! e!"r/ (!y#& y#!" ($%#h .%#k o./#& k#re!# /#(#h
$/$r (eer. y#!" ($%#h %-e(k#! %#.#( Jk# "#!""$#! y#!" /$7$&
k#re!# #%#!y# (!y#& #&($ /#k# h#/r .%#k /$!"k! $!.$k /e!e/$k#!
&e.#k %#r "#!""$#! .$ (e!%r Jk# .%#k %##. /e!e/$k#! &e.#k "#!""$#!
/#k# ke/$!"k!#! "#!""$#! .$ /$!7$& ke/3#& (#!"#. 3e(#r k#re!#
3e&$/ #%# .!%#k#! er3#k#! H#& ! ($%#h #(. /e!ye3#3k#!
keh#!%#! e/3#!"k. /e!$r$! %#! .er"#!""$!y# #(ok#! &(.rk ke
ko!($/e! Se3e!#r!y# h#& ! %##. %#!.(#( %e!"#! /ek$k#!
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/e!e/$k#! &e.#k "#!""$#!, #k#! .e.# h#& ! .%#k /$!"k! %k$k#!
k#re!# %(#/!" k##! %#.#!"!y# "#!""$#! y#!" .%#k %##. %re%k(
-$"# $!.$k /ek$k#! e!"#/#.#! (e7#r# ko!.!y$ -$"# .%#k e9ek.9 k#re!#
#k#! /e!"#3#k#! eker-##! !!y# M#k# %#r .$ $!.$k %##. /e/e.#k#!
&e.#k "#!""$#! y#!" /$!7$& k#re!# (!y#& #&($ .er(e3$. %3$#. ($#.$
%e!.9k#( "#!""$#! e&ek.rk %e!"#! /e/3$#. ($#.$ r#!"k##! %e!.9k#(
"#!""$#! y#!" %#(#!" #%# er#.#! .er(e3$. %#! h#& ! .er3$k. (#!"#.
e9ek.9 $!.$k /e!e/$k#! &e.#k "#!""$#!
1(2Tu6u$n P'*7e& A&hi'
T$-$#! %#r e!e&.#! ! #%#h /e!"e.#h$ %#! /e!"#!#&(#
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((.e/ ek(.#(
2 Me!"#!#&(# e!ye3#3 .er-#%!y# "#!""$#! .er(e3$.
4 Mek$k#! #!.(#( #"#r "#!""$#! .er(e3$. .%#k .er-#% "
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#&($ %##. &e3h /e!"he/#. #k.$2 Me/!/#&(r .er-#%!y# "#!""$#! y#!" (#/# k#re!# .eh %k$k#!
er3#k#! #%# ko/o!e! y#!" 3er/#(#h
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4 Keh#!%#! %#r $!. e/3#!"k. &e3h .er-#"# k#re!# ro(e(
%e!.9k#( "#!""$#! &e3h e9ek.9 %#! e9(e!
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)er%#(#rk#! er/#(#h#! %#.#( /#k# y#!" k#/ 3#h#( 3erk#.#!
%e!"#! #. .er(e3$. %#!.#r# ! :
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"#!""$#!4 )#"#/#!# 7#r# e/3$#.#! r#!"k##! %e!.9k#( "#!""$#! Me!"e.#h$ 3#"#/#!# e!"#r$h e/#(#!"#! r#!"k##! %e!.9k#(
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3erk$. :
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r#!"k##! %e!.9k#( "#!""$#! $!.$k /e!"%e!.9k#( ($/3er
"#!""$#!
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Proyek Akhr ! .er3#" %#/ &/# 3#3 )#3 (#.$ /e/3#h#(
/e!"e!# e!%#h$&$#! y#!" 3er( .#r 3ek#!" /#(#h, (er.#
er/#(#h#! ## (#-# y#!" !"! %3#h#(, 3#3 %$# /e/3#h#( .eor %#(#r
/e!"e!# /#.er e!$!-#!" y#!" /e#k& ( royek #khr !, 3#3 ."#
/e/3#h#( /e.o%e y#!" %#k# %#/ /e!"/&e/e!.#(k#! .eor %#!
ko!(e ke %#/ e!ye&e(##! /#(#h, 3#3 e/#. /e/3#h#( /e!"e!#
h#(& #!#&(# %#! e!ye&e(##! /#(#h y#!" %3#h#(, %#! 3#3 .er#khr y#.$
3#3 &/# /e/3#h#( ke(/$! y#!" %.#rk %#r h#(& e!"k#-#! (e&$r$h
3#3
BAB II
LANDASAN TEORI
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Ek(.#( #%#h 3#"#! %#r ((.e/ %#r "e!er#.or y#!" 3er9$!"(
/e/3e!.$k/e!"h#(&k#! 9&$k( y#!" 3er$3#h .erh#%# #k.$, (eh!""#
%h#(&k#! (#.$ GGL !%$k( Se.eh "e!er#.or [email protected] /e!7## ke7e#.#! !o/!#&,
/e%#!!y# %ek(.#( %#r 7#.$ [email protected] Ke.k# k$.$3 &e#. % 3##h ko!%$k.or -#!"k#r,
9&$k( /e%#! y#!" /e/o.o!" ko!%$k.or /e!"!%$k(k#! GGL #%# ko!%$k.or
-#!"k#r )e(#r!y# GGL y#!" %3#!"k.k#! .er"#!.$!" #%# -$ e/o.o!"#! "#r(
"#y# >ke7e#.#! ro.or? %#! k$#. /e%#! K#re!# "e!er#.or ke3#!y#k#! 3erker-#
#%# ke7e#.#! ko!(.#!, /#k# 3e(#r!y# GGL y#!" %3#!"k.k#! /e!-#%
3er"#!.$!" #%# ek(.#( /e%#!
2(1P'insi% Ke'6$ Gene'$4*'
Ge!er#.or 3eker-# 3er%#(#rk#! h$k$/ 9#r#%#y y#k! ##3 ($#.$
e!"h#!.#r %$.#rk#! %%#/ (e3$#h /e%#! /#"!e. (eh!""# /e/o.o!"
"#r(*"#r( "#y# /#"!e. /#k# #%# $-$!" e!"h#!.#r .er(e3$. #k#! ./3$&
""& >"#r( "#y# &(.rk? y#!" /e/$!y# (#.$#! 8o&.Te"#!"#! y#!" %h#(&k#! .er%##. #%# k$/#r#! -#!"k#r %#!
.er"#!.$!" %#r k$#. /e%#! #%# ro.or %#! ke7e#.#!!y# )e(#r ke7&!y#
9&$k( .er"#!.$!" %#r #r$( y#!" %3erk#! #%# k$/#r#! /e%#! ro.or Jk#
%#/ ek(#!##!!y# $.#r#! "e!er#.or %3$#. .e.#, /#k# .e"#!"#!
"e!er#.or .er"#!.$!" #%# k$#. &e/#h!y# #r$( #%# k$/#r#! /e%#! ro.or
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;
G#/3#r 21 Ske/# Pr!( Ker-# Ge!er#.or
A%#$! r!( ker-# %#r "e!er#.or (e7#r# $/$/ #%#h (e3#"#
3erk$. :1 K$/#r#! /e%#! y#!" .er%##. #%# ro.or %h$3$!"k#! %e!"#! ($/3er
ek(.#( .er.e!.$ y#!" #k#! /e!($ #r$( (e#r#h .erh#%# k$/#r#!
/e%#! De!"#! #%#!y# #r$( (e#r#h y#!" /e!"#&r /e&$ k$/#r#!
/e%#! /#k# #k#! /e!/3$&k#! 9&$k( y#!" 3e(#r!y# .erh#%# #k.$
#%#h .e.#2 Pe!""er#k /$ >Prime Mover? y#!" ($%#h .erkoe& %e!"#! ro.or (e"er#
%oer#(k#! (eh!""# ro.or #k#! 3er$.#r #%# ke7e#.#! !o/!#&!y#4 Per$.#r#! ro.or .er(e3$. (ek#&"$( #k#! /e/$.#r /e%#! /#"!e. y#!"
%h#(&k#! o&eh k$/#r#! /e%#! Me%#! $.#r y#!" %h#(&k#! #%#
ro.or, #k#! %!%$k(k#! #%# k$/#r#! -#!"k#r (eh!""# #%# k$/#r#!
-#!"k#r y#!" .er&e.#k % (.#.or #k#! %h#(&k#! 9&$k( /#"!e.k y#!"
3er$3#h*$3#h 3e(#r!y# .erh#%# #k.$ A%#!y# er$3#h#! 9&$k(
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/#"!e.k y#!" /e&!"k$ ($#.$ k$/#r#! #k#! /e!/3$&k#! ""& !%$k(
#%# $-$!"*$-$!" k$/#r#! .er(e3$., h#& .er(e3$. (e($# %e!"#!
Per(#/##! 21 %#! Per(#/##! 22 3erk$. :
e=N
d
dt 21
e=Nd max sint
dt
N max cost > =2f ?
N(2 f)max cost > f=np120 ?
N(2 np120 )max cost
N(2.3,14 np120 )max cost
Em=N(2.3,14 np120 )max
Eeff=Emax
2=
N(2.3,14 np120 )max2
4,44Npnmax
120 4,44Np
120=C
Eeff=Cnmax 22
%/#!# :Em B ""& !%$k( /#k(/$/ >Co&.?
Eeff B ""& !%$k( e9ek.9 >N y#!" .er3#7# #%# #. $k$r?
N B -$/h &&.#!
e B ""& !%$k( %#/ ke#%##! .r#!(e!. >Co&.?
C B ko!(.#!.#
f B 9rek$e!( >Her.6?
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n B $.#r#! ro.or >r/?
max B 9&$k( /#"!e.k /#k(/$/ >e3er?
'!.$k "e!er#.or (!kro! ."# 9#(#, h#r$( #%# ."# 3e&.#! y#!"
/#(!"*/#(!" .er(#h (e3e(#r 120 %er#-#. &(.rk %#/ r$#!" (ek.#r
ke&&!" 7eh $%#r# (eer. %er&h#.k#! #%# k$/#r#! # #, 3 3 %#! 7
7 #%# "#/3#r 22 M#(!"*/#(!" &&.#! #k#! /e!"h#(&k#! "e&o/3#!"
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y#!" /er$#k#! 9$!"( .e/#. > ? %#! #k.$ > t ?, /#k# 3e(#r* 3e(#r!y#
9&$k( .o.#& #%#h:
T( , t)=max .costmax .cos (t240 ) .cos (240 )
De!"#! /e/#k# .r#!(9or/#( .r"o!o/e.r %#r :
cos .cos=12 .cos (+ )+ 12 .cos()
/#k# %#r er(#/##! %#.#( %ero&eh :
(t+ )+1
2.max .cos (t )+
1
2.max .cos (t+240 )+
1
2.max .cos (t )+
1
2.max .co
T=1
2.max .cos
D#r er(#/##! %#.#(, 3 %$r#k#! /#k# ($k$ ke(#.$, ke."#, %#! ke&/#
#k#! (!" /e!"h!"k#! De!"#! %e/k#! %#r er(#/##! #k#! %%##.
9&$k( .o.#& (e3e(#r,
T=3
2max .cos (t) e3erFFFFFFFFFFFFFF2
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P#%# ((.e/ .e!#"# &(.rk 4 9#(#, %e#&!y# %#y# &(.rk y#!" %3#!"k.k#!
%(#&$rk#! %#! %(er# o&eh 3e3#! (e/$#!y# (e/3#!", P e/3#!"k.#! B P
e/#k#! %#! -$"# #%# .e"#!"#! y#!" (e/3#!" P#%# .e"#!"#! y#!"
(e/3#!" .er%r %#r .e"#!"#! 1 9#(# y#!" /e/$!y# /#"!.$%e %#!
9rek$e!( y#!" (#/# .e.# #!.#r# 1 9#(# %e!"#! y#!" !!y# /e/$!y#
3e%# 9#(# (e3e(#r 120&(.rk %#! %##. %h$3$!"k#! (e7#r# 3!.#!" >Y? #.#$
(e"."# >%e&.#?
G#/3#r 24 H$3$!"#! )!.#!"
P#%# h$3$!"#! 3!.#!" >Y?, $-$!"*$-$!" .# 9#(# %h$3$!"k#! /e!-#%
(#.$ %#! /e!-#% ..k !e.r#& #.#$ ..k 3!.#!" Te"#!"#! #!.#r# %$# .er/!#&
%#r ."# .er/!#& R*S*T /e/$!y# 3e(#r /#"!.$%e %#! 3e%# 9#(# y#!"
3er3e%# %e!"#! .e"#!"#! .# .er/!#& .erh#%# ..k !e.r#& Te"#!"#! #!.#r
9#(# %e!"#! !e.r#& %(e3$. %e!"#! .e"#!"#! Vp ? %#! .e"#!"#!
#!.#r# $-$!" .er/!#& %e!"#! .er/!#& !!y# %(e3$. %e!"#! .e"#!"#! &!e >
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11
VL ? De!"#! #%#!y# ..k !e.r#& /#k# 3e(#r#! .e"#!"#! 9#(# % $k$r
.erh#%# ..k !e.r#&!y# %#! -$"# /e/3e!.$k ((.e/ .e"#!"#! 4 9#(# y#!"
(e/3#!" %e!"#! /#"!.$%e!y# >#k#r 4 %k#& /#"!.$%e %#r .e"#!"#! 9#(#?
VL=3 .VP FFFFFFFFFFFFFFFFFFFFFFF25
Se%#!"k#! #r$( y#!" /e!"#&r #%# .# 9#(#!y# /e/$!y# ! y#!" (#/#
L=P
G#/3#r 2 H$3$!"#! Se"."#
P#%# h$3$!"#! (e"."# ke."# 9#(# (#&!" %h$3$!"k#! (eh!""#
/e/3e!.$k h$3$!"#! (e"."# 4 9#(# De!"#! .%#k #%#!y# ..k !e.r#&, /#k#
3e(#r!y# .e"#!"#! (#&$r#! % $k$r #!.#r 9#(#, k#re!# .e"#!"#! (#&$r#! %#!
.e"#!"#! 9#(# /e/$!y# 3e(#r /#"!.$%e y#!" (#/#, /#k#:
VL=VP
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12
Te.# #r$( (#&$r#! %#! #r$( 9#(# .%#k (#/# %#! h$3$!"#! #!.#r# ke%$# #r$(
.er(e3$. %##. %ero&eh %e!"#! /e!""$!#k#! h$k$/ kr7ho99, (eh!""#:
L=3. P FFFFFFFFFFFFFFFFFFFFFFFFFF2;
P#%# PLTG' Gre(k "e!er#.or y#!" %"$!#k#! #%#h "e!er#.or
(!kro! k$.$3 (&!%r( >non salient pole? %e!"#! %$# 3$#h k$.$3 %#! %-#"#
#%# $.#r#! 4000 r/
T#3e& Se(9k#( .ek!( "e!er#.or #%# PLTG' Gre(k
SIEMENS
GENERATOR 12+52; 11
TLR 10=4; 50 !1
LE
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14
S(.e/ ek(.#( #%#h ((.e/ /e!"#&r!y# #(ok#! &(.rk #r$( (e#r#h
(e3#"# e!"$#.#! #%# "e!er#.or &(.rk, (eh!""# /e!"h#(&k#! .e!#"#
&(.rk %#! 3e(#r .e"#!"#! ke&$#r#! 3er"#!.$!" #%# 3e(#r!y# #r$( ek(.#(
S(.e/ ek(.#( #%# "e!er#.or &(.rk .er%r %#r 2 /#7#/, y#.$:1 S(.e/ ek(.#( %e!"#! (k#. >brush ?2 S(.e/ ek(.#( .#!# (k#. >brushless ?
2(2(1 Sis4e, E&si4$si Den.$n Si&$4
S(.e/ ek(.#( /e!""$!#k#! (k#., ($/3er .e!#"# &(.rk
3er#(#& %#r ($/3er &(.rk y#!" 3er#(#& %#r "e!er#.or #r$( (e#r#h
>[email protected]? #.#$ "e!er#.or #r$( 3ok 3#&k >[email protected]? y#!" %(e#r#hk#! .er&e3h
%#h$&$ %e!"#! /e!""$!#k#! rectifier Jk# /e!""$!#k#! ($/3er
&(.rk y#!" 3er#(#& %#r "e!er#.or [email protected] #.#$ /e!""$!#k#! Permanent
Magnet Generator >PMG? /e%#! /#"!e.!y# #%#h /#"!e.
er/#!e! D#/ #!e& e!ye#r#h, .e"#!"#! &(.rk #r$( 3ok 3#&k
%$3#h #.#$ % (e#r#hk#! /e!-#% .e"#!"#! #r$( (e#r#h $!.$k
/e!"o!.ro& k$/#r#! /e%#! ek(.er $.#/# >main exciter? '!.$k
/e!"#&rk#! #r$( ek(.#( %#r /#! ek(.er ke ro.or "e!er#.or
/e!""$!#k#! slip ring%#! (k#. #r#!", %e/k#! -$"# e!y#&$r#!
#r$( y#!" 3er#(#& %#rpilot exciterke main exciterKe$!.$!"#! /e!""$!#k#! ((.e/ ek(.#( %e!"#! (k#.
>brush ? #!.#r# !:
! Me/$!y# re(o! y#!" 7e#. (er!" ke/#/$#! governor
turbine!
2 Me/&k 3#.#(#! #r$( ek(.#( y#!" .!""
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1
4 S$/3er .e"#!"#! ek(.#( %#/3& !"($!" %#r ke&$#r#!
"e!er#.or
'!.$k #r$( ek(.#( y#!" /#($k ke ro.or "e!er#.or h#r$(
%#.$r (e%e/k#! r$# (eh!""#:
1 Me!/3$&k#! .e"#!"#! (.#.or #%# #k.$ y#!" (!"k#. /e!$-$
(!kro!(#(
2 Me!(.#3&k#! supply%#y# &(.rk M %#! MCAR ke ((.e/
4 Me!-#"# .e"#!"#! "e!er#.or #"#r .e.# 3er#%# %#/ 3#.#(#!
!o/!#& y#!" %-!k#! >5 Te"#!"#! !o/!#& "e!er#.or?
G#/3#r 25( S(.e/ ek(.#( %e!"#! (k#. >"rush ?
Sis4e, E&si4$si T$n%$ Si&$4
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15
Pe!""$!##! (k#. #.#$ (& r!" $!.$k /e!y#&$rk#! #r$(
ek(.#( ke ro.or "e!er#.or /e/$!y# ke&e/#h#! k#re!# 3e(#r!y#
#r$( y#!" /#/$ %#&rk#! #%# (k#. #r#!" re.9 ke7& '!.$k
/e!"#.#( ke.er3#.#(#! (k#. #r#!", #%# "e!er#.or e/3#!"k.
/e!""$!#k#! ((.e/ ek(.#( .#!# /e!""$!#k#! (k#. >brushless?Ke$!.$!"#! ((.e/ ek(.#( .#!# /e!""$!#k#! (k#.
>brushless ?, #!.#r# ! #%#h:
1 E!er" y#!" %er&$k#! $!.$k ek(.#( %ero&eh %#r oro(
$.#/# >main shaft?, (eh!""# ke#!%#!!y# .!""
2 )#y# er##.#! 3erk$r#!" k#re!# #%# ((.e/ ek(.#( .#!#
(k#. >brushless ? .%#k .er%##. (k#., ko/$.#.or %#! (& r!"
4 P#%# ((.e/ ek(.#( .#!# (k#. >brushless ? .%#k .er-#%
ker$(#k#! (o( k#re!# /e&ek#.!y# %e3$ k#r3o! #%# 9#r!(h
#k3#. (k#. #r#!"
Me!"$r#!" ker$(#k#! >trouble? #k3#. $%#r# 3$r$k >bad
atmosphere? (e3#3 (e/$# er#.#! %.e/#.k#! #%# r$#!"
.er.$.$
5 Se/# oer#( .%#k %er&$k#! e!""#!. (k#., (eh!""#
/e!!"k#.k#! ke#!%#! oer#( %##. 3er!"($!" ko!.!$
#%# #k.$ y#!" /#
; Pe/$.$( /e%#! "e!er#.or >Generator field breaker?, field
generator%#! bus exciter#.#$ k#3e& .%#k %er&$k#! "
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1;
+ )#y# o!%#( 3erk$r#!", (e3#3 #&r#! $%#r# %#! bus exciter
#.#$ k#3e& .%#k /e/er&$k#! o!%#(
G#/3#r 2; S(.e/ ek(.#( .#!# (k#. >"rushless ?
2(2 Sis4e, P'*4e&si E&si4$si
S$#.$ ((.e/ ek(.#( h#r$( (e&$ %&e!"k# %e!"#! ($#.$ ((.e/
ro.ek(, h#& ! 3er.$-$#! $!.$k (#r#!# e!"#/#! ((.e/ ek(.#( 3 .er-#%
"#!""$#! y#!" %##. /e!ye3#3k#! ker$(#k#! ((.e/ ek(.#( (eh!""# 3(#
/e/!/#&(r ker$(#k#! #%# ((.e/ ek(.#( %#! ((.e/*((.e/ !!y#
y#!" 3erh$3$!"#! %e!"#! ((.e/ ek(.#(
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1+
D#/ e!"oer#(#! ((.e/ ek(.#( -$"# er&$ %erh#.k#!
"#!""$#!*"#!""$#! y#!" %##. /e!ye3#3k#! #r/ %#! .r #%# ((.e/
#k(.#( S!y#&*(!y#& y#!" /e!ye3#3k#! #r/ %#! .r #%# ((.e/ ek(.#(
#!.#r# !:
1 Tr#!(9or/#.or ek(.#( o8er he#.!"
G#!""$#! ! 3(# %(e3#3k#! k#re!# ((.e/ e!%!"! #%#
.r#!(9or/#.or ek(.#( .%#k 3eker-# (e7#r# !or/#& Se! .$ -$"# 3(#
.er-#% k#re!# .r#!(9or/#.or ek(.#( /e!"#/ o8er&o#% %#! .er-#%!y#
h$3$!" (!"k#. #!.#r 3e&.#! H#& ! /e!"#k3#.k#! ro(e( 7#.$ %#y#
((.e/ ek(.#( 3er/#(#h (eh!""# #&r#! ek(.#( ke ro.or "e!er#.or
/e!-#% .%#k !or/#&
2 Se!(or .e"#!"#! #%# CT "e!er#.or /e!"#/ "#!""$#!
G#!""$#! ! /e!"#k3#.k#! ro(e( /o!.or!" .e"#!"#! %#!
ro.ek( #%# ((.e/ ek(.#( /e!"#/ k#k#7#$#! H#& ! (#!"#.
3er3#h#y# 3#" "e!er#.or k#re!# -k# ro.ek( /e!-#% .%#k !or/#&
/#k# #%# (##. .er-#% "#!""$#! #%# "e!er#.or, ((.e/ ro.ek(
"e!er#.or .%#k %##. 3eker-# (e7#r# !or/#&
4 G#!""$#! [email protected]
G#!""$#! ! /e!"#k3#.#k#! ke.%#k!or/#! supply #r$(
ek(.#( #%# ro.or "e!er#.or K#re!# ($&y .e"#!"#! y#!"
%(e#r#hk#! /e&e3h 3#.#(#! !or/#& /#k# #r$( ek(.#( y#!"
%h#(&k#! /e!-#% .%#k !or/#& -$"#
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1=
#! Rotor overvoltage
G#!""$#! ! .er-#% k#re!# .er-#%!y# ke!#k#! .e"#!"#!
ek(.#( #%# ro.or "e!er#.or, ek(.#( y#!" &e3h #%# "e!er#.or %##.
/e!#kk#! .e/er#.$r #%# 3e&.#! (.#.or #k3#. #r$( y#!" 3e(#r
(eh!""# %##. /er$(#k 3e&.#! ro.or
5 [email protected]) .r
[email protected]) .r /e!"#k3#.k#! .er$.$(!y# 7#.$ %#y# #%# ((.e/
ek(.#( "e!er#.or
; $hyrstor9$(e $.$(
G#!""$#! ! /e!ye3#3k#! .er$.$(!y# 7#.$ %#y# /e!$-$
thyrstor (eh!""# /e!ye3#3k#! .%#k #%#!y# .e"#!"#! y#!"
%(e#r#hk#!
+ Fan thyrstor3er/#(#h >(e!(or air flo%3eker-#?
S##. 3eroer#( thyrstor #k#! /e!"#/ ke!#k#!
.e/er#.$re, $!.$k /e!"o!.ro& .e/er#.$re #%# thyrstor (##.
3eroer#( %"$!#k#! 9#! Jk# .er-#% /#(#h #%# 9#! /#k#
.e/er#.$re #%# thyrstor#k#! .er$( !#k (eh!""# .er-#% o8er he#.!",
h#& ! %##. /e!ye3#3k#! ke.%#k !or/#! #%# thyrstor (eh!""#
#r$( ek(.#( y#!" %#&rk#! #%# ro.or #k#! /e!-#% .%#k !or/#&
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1
= LimiterACR .er7##
Limiter ACR .er7## /e!"#k3#.k#! .r #%# ((.e/ ek(.#(
(eh!""# #&r#! #r$( ek(.#( #%# ro.or "e!er#.or /e!-#% .er$.$(
ACR /e!"#/ "#!""$#!
Jk# .er-#% "#!""$#! #%# ((.e/ ACR /e!ye3#3k#! ro(e(
ko!.ro& #%# ((.e/ ek(.#( /e!-#% .er"#!""$ (eh!""# #&r#! #r$(
ek(.#( #%# ro.or "e!er#.or /e!-#% .%#k !or/#& %#! %##. -$"#
/e!"#k3#.k#! "e!er#.or keh!"#! /e%#! e!"$#.
10 Field breaker/e!"#/ "#!""$#!
Jk# field breaker /e!"#/ "#!""$#! /e!ye3#3k#!
.er$$.$(!y# #&r#! #r$( ek(.#( #%# "e!er#.or %#! /e!"#k3#.k#!
"e!er#.or keh!"#! /e%#! e!"$#.
! Ground Fault
G#!""$#! ground fault .er-#% k#re!# h$3$!" (!"k#. #!.#r#
r#!"k##! ((.e/ ek(.#( %e!"#! 3o% #!e& ek(.#( H#& ! 3(# .er-#%
k#re!# ke"#"#! (o( #%# ko!%$k.or
D#/ e!er##! %#!"#! $!.$k /e/ro.ek( ((.e/ ek(.#( %#r
"#!""$#!*"#!""$#!, ((.e/ ek(.#( %&e!"k# %e!"#! ((.e/ ro.ek(
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20
G#/3#r 2= /er$#k#! ((.e/ ro.ek( ek(.#( "e!er#.or #%# PLTG'
Gre(k
G#/3#r 2+ S(.e/ Pro.ek( Pe!"$#. Ge!er#.or #%# PLTG' Gre(k
Ke.er#!"#! G#/3#r:
@JN : S(.e/ Ek(.#(
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21
D#r "#/3#r 2+ %#.#( #%# 2 /#($k#! y#!" /e!"r/ (!y#& .r ke
.r!" /#.rk y#.$ %#r !.er!#& ((.e/ ek(.#( %#! Loss of field protection
relay >0G? H#& ! /e!$!-$k#! 3#h# ((.e/ ro.ek( e!"$#. "e!er#.or
#%# 2 /#7#/, y#.$:
1 Pro.ek( excitation faiure #.#$ ke"#"#! ek(.#(2 Loss Of field Protection #.#$ ro.ek( keh!"#! /e%#! e!"$#.
2(8(1 P'*4e&siExcitation Failure$4$u Ke.$.$l$n E&si4$si
S(.e/ ro.ek( excitation Failure ! /er$#k#! ro.ek(
ek(.#( y#!" /e!"#/#!k#! er#.#! %#r "#!""$#! !.er!#& ((.e/
ek(.#( .$ (e!%r G#/3#r 2= /er$#k#! &o"7 %#"r#/ excitation
Failure P#%# PLTG' Gre(k
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22
G#/3#r 2= Logic excitation Failure!
'!(!' Loss Of field Protection atau Kehil$n.$n Me$nPen.u$4
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24
G#!""$#! h!" e!"$#. "e!er#.or #%#h ko!%( #3!or/#&
oer#( ((.e/ .e!#"# %/#!# "e!er#.or .%#k /e!%##.k#! ($
#r$( %7 (e3#"# #r$( ek(.#( #"#r %h#(&k#! .e"#!"#! ke&$#r#!
#%# .er/!#& (.#.or Ke"#"#! %#/ ((.e/ ek(.#( ! %##.
%(e3#3k#! o&eh :1 )re#ker /e%#! /e!"#/ .r2 H$3$!" 3$k# 3e&.#! /e%#!4 H$3$!" (!"k#. 3e&.#! /e%#! >er7k#! # #%# (& r!"? Ke"#"#! #%# ((.e/)utomatic *oltage Regulator>ACR?5 H!"!y# ($ %#y# ke ((.e/ ek(.#(
Ak3#. %#r "#!""$#! ! #%#h ko&!" /#"!e.k >magnetic
coupling? #!.#r# ro.or %#! (.#.or /e&e/#h, (eh!""# $.#r#! ro.or
3er.#/3#h 7e#. (eh!""# 3(# .er-#% keh!"#! ke(ere/#k#!
>loss of synchronism? %#! /e!"#k3#.k#! "e!er#.or 3eker-# (e3#"#
"e!er#.or !%$k(, y#!" #k#! /e!ye3#3k#! :
1 Ter-#%!y# e!"#/3! %#y# re#k.9 %#r ((.e/ o&eh "e!er#.or
$!.$k %"$!#k#! (e3#"# ek(.#( )e(#r!y# %#y# re#k.9 y#!"
%#/3& ! 3erk(#r #!.#r# 2 k#& r#.!" "e!er#.or y#!" %##.
/e!/3$&k#! ke.%#k(.#3! #%# ((.e/2 N#k!y# .e/er#.$r ro.or y#!" %(e3#3k#! k#re!# e!"#&r#!
#r$( !%$k( y#!" 3e(#r, (eh!""# /e!ye3#3k#! er$3#h#! (9#.
/ek#!( er#.#!*er#.#! #%# ro.or
4 Pe!$r$!#! .e"#!"#! .er/!#& "e!er#.or %e!"#! 7e#. >10 * 15
%e.k?, .er$.#/# #%# "e!er#.or .#!# ACR
Ke!#k#! .e/er#.$r #%# (.#.or #k3#. !#k!y# #r$( (.#.or >2
n ?
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2
P#%# (##. "e!er#.or /e!"#/ h$3$!" (!"k#. (e7#r# .3#*
.3#, /#k# $!.$k (e(##. $.#r#! "e!er#.or #k#! /e!"#/
er$3#h#! Per$3#h#! $.#r#! "e!er#.or y#!" 3er#r. er$3#h#!
(& $.#r#! "e!er#.or .erh#%# ((.e/ #k#! /e!"#k3#.k#!
er$3#h#! $ #%# ! /e%#!( "e!er#.or Per$3#h#! !
/e%#!( "e!er#.or ! .er"#!.$!" #%# ! (& y#!" .er-#% (eer.
.er&h#. #%# .#3e& %3##h !
T$el I,%e$nsi .ene'$4*' 4e'h$$% sli%
S& >? Re#k.#!( Ge!er#.or
0 %
00;5 0= %
01 0+ %
044 2 %
50 %
100 %
'!.$k ! (& !!y#, ! /e%#!( "e!er#.or %%##.k#! %#r
!.ero( %#.# y#!" #%#
'!.$k #!#&(# "#!""$#! h!" e!"$#. "e!er#.or %"$!#k#!
er$/$(#! ko!%( er$3#h#! .e"#!"#! %#! #r$( "e!er#.or (##.
.er-#% "#!""$#! h!" e!"$#. "e!er#.or (e3#"# 3erk$. :
1 G#!""$#! h!" e!"$#. 3er$# e!$r$!#! GGL "e!er#.or
.#!# %(er.# %e!"#! .er-#%!y# (& #%# ro.or "e!er#.or
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25
2 G#!""$#! h!" e!"$#. 3er$# e!$r$!#! GGL "e!er#.or
%(er.# %e!"#! .er-#%!y# (& #%# ro.or "e!er#.or
2(8(2(1( G$n..u$n Hil$n. T$n%$ Dise'4$i A$n7$ Sli% P$$
R*4*'
P#%# "#!""$#! h!" e!"$#. ko!%( .#!# (&,
/#k# .e"#!"#! GGL "e!er#.or #k#! /e!"#/
e!$r$!#! %#r ko!%( !or/#&!y# %#! $.#r#! "e!er#.or
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BAB III
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(e3$#h er#.#! ro%$k( y#!" /e!"#/ ker$(#k#!, 3#k
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