PLTA TULUNGAGUNG
PAGE PLTA TULUNGAGUNG
START/STOP SEQUENCE
START SEQUENCE
Control & Auxiliary power tersedia
Tidak ada alasan untuk shut down
Unit selector posisi AUTO
MCC-selector posisi AUTO
Gov. actuator mode AUTO + SE-Y02. 1
Air compressor OK 40 + SK B01, S01/-B02, -S02
Tekanan suplai udara normal 40 + SK S05
Break air press. NORMAL 40 + SK S07
Gov. pressure tank - tekanan oli normal SE S04 S06
Gov. pressure tank level oli normal +SE-S01. 2, -S01. 3
Gov. sump tank level oli normal +SA-S01, -S02, -S03
Shaft seal off +SA-S04
Inlet valve tertutup/closed +IV-S01
Inlet valve UNLOCKED +IV-S06
Bypass valve tertutup/closed +IV-S01
Manual shut down valve 3007 posisi reset +SE-S14
Wicket gate servomotor 1, 2 UNLOCKED +SA-S30, -S31
Wicket gate tertutup/closed +SA1 S05
Gen. brake selector handle AUTO +SE-S16
Gen. brake on
Temperatur bearing normal +SA-B03, -B04, -B05, -B06
Tidak ada shear pin yang patah +SA-S07 sampai S26
Pit water level NORMAL 41+VL-S05
Generator breaker siap
Electronic gov. siap
Hal 2
Hal 1
&
- Start button
gov. Oil LEADpump on +SE-M01/-M02
Buka valve air pendingin +VL-M03
Valve air pendingin 46021 terbuka/open
Aliran air pendingin tersedia +VL-S05 sampai S08
&
Hal 3
Hal 2
High pressure lift pump ON
Tekanan angkat tersedia
Buka by-pass control valve +SE-Y04
By-pass valve terbuka IV-S06
Spiral case terisi +IV-S07
&
Buka inlet valve +SE-Y05
Tutup by-pass valve +SE-Y04
By-pass valve tertutup +IV-S05
Inlet valve terbuka +IV-S03
& &
Hal 4
Hal 3
Energize shut down valve +SE-Y01
Lepaskan gnerator brakes (ELIN)
- Generator brakes off
&
Jalankan gate limiter sampai 100%
Turbin Speed > 95% &
Stop high pressure lift pump Eksitasi on Auto synchronizer on &
Hal 5
Hal 4
Match/sesuaikan tegangan line generator Match/sesuaikan frekuensi (atur speed up-down) Match/sesuaikan phase &
Close/tutup line circuit breaker
Pembebanan unit
STOP SEQUENCE
Gov. pressure tank oil pressure low 2 +SE-S07
Gov. pressure tank oil level low 2 +SE-S21
Temp. turbine guide bearing metal high 2 +SA-B03, -B05, -B06 Temp. turbine guide bearing oil high 2 +SA-B04 Shaft seal applied +SA-S04 Electr. Turbine gov. gagal Overspeed
Trip shut down valve +SE-Y01
Hal 7
Emergency push button Kegagalan elektrik (Electrical fault) (Generator)
Hal 7
Hal 6
Buka (open) generator breaker Trip shut down valve +SE-Y05 Jalankan (run) gate limiter sampai 0 &
Hal 8
Stop push button
Hal 8
Hal 7
Jalankan (run) gate limiter sampai 0 Beban di bawah MIN
Buka (open) gnerator breakerHal 7
Speed di bawah 95%
Start high pressure lift pump Eksitasi OFF De-energize shut down valve +SE-Y01 Tutup (close) inlet valve +SE-Y05 &
Speed di bawah 25% Inlet valve tertutup +IV-S01 Hal 9
Hal 8
Aplikasikan generator brakes +SE-Y01 Generator brake diaplikasikan Speed 0 &
De-energize shut down valve +SE-Y01 Stop high pressure lift pump Pindah (transfer) gov. oil pump ke Stanstill mode Tutup (close) cooling water system (delayed +VL-M03) &
LEGENDA
Action/Aksi
Konfirmasi/Confirmation
Logic Connection/Hubungan Logika
Standstill
0
&
Siap Untuk Start Step 1
&
Auxiliaries
Step 2
Step 3
&
Step 4
&
&
Step 5
Step 5
&
&
Step 6
&
Step 7
Step 7
Step 8
&
&
Step 9
Turbin Beroperasi
Turbin Beroperasi
0
> 1
&
Kegagalan mekanik
(Mechanical fault)
A
> 1
> 1
&
B
Kegagalan elektrik
(Electrical fault)
C
&
Manual Stop
Step 1
A
> 1
&
Step 2
C
> 1
&
Step 3
Step 4
Step 5
Step 6
Unit Stanstill
Sequence Step
&, > 1
68
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