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

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