VP 18 101 c 231 001ab Sk 010 Turbine Control System Cause & Effect Chart

CAUSE & EFFECT DIAGRAM SOM6629813

TITLE: CAUSE & EFFECT DIAGRAM

DOCUMENT CODE

SOM6629813 REVISION

5 REVISION DESCRIPTION:

REVISED SH. 1,38,39,42

DATE 02-Aug-12

APPROVED SECURITY CODE

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EXECUTED SIME SCALE

N/A REPLACES/DERIVED FROM

N/A 1st ISSUE

10-May-11 ORIGINAL JOB 1800057-58

SIZE 3

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THIS DOCUMENT IS AND CONTAINS CONFIDENTIAL AND PROPRIETARY INFORMATION OF Nuovo Pignone S.r.l. WHICH SHALL NOT BE USED OR DISCLOSED TO OTHERS, EXCEPT WITH THE WRITTEN PERMISSION OF Nuovo Pignone S.r.l. . UNPUBLISHED WORK 2012 Nuovo Pignone S.r.l.. ALL RIGHTS RESERVED.

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TURBINE CONTROL SYSTEM

CAUSE & EFFECT CHART

CUSTOMER : DAELIM x KNPC PLANT LOCATION : MINA AL-AHMADI REFINERY (KUWAIT) PLANT : FEED GAS COMPRESSOR TRAIN NP JOB : 180.0057-58 / 110.2680-81 ITEM : C-231-001A/B-T C-231-001A/B

AT MINA AL-AHMADI REFINERYLPG TRAIN-4 PROJECT

AS SHIPPED Chakraborty A.Stoppa L.

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NOTES TO THE MATRIX (1) MEDIAN. (2) MEAN. (3) MAX. (4) 1oo2 VOTING LOGIC. (5) 1oo3 VOTING LOGIC. (6) 2oo3 VOTING LOGIC. (7) 3oo4 VOTING LOGIC. (8) ALARM FOR FUEL GAS PIPING PRESSURIZED WITH UNIT STOPPED, ENABLED 180 sec. AFTER LINE DEPRESSURIZATION COMMAND. (9) ACTIVATED DURING FUEL GAS START-UP SEQUENCE. LOSS OF ZSL SIGNAL DURING NORMAL OPERATION CAUSES ALARM FOR 20VG-1 VALVE FAILURE OPENING. (10) VALVE CLOSE LIMIT SWITCH STATUS: ACTIVATED (VALVE TOTALLY CLOSED) DURING STARTING SEQUENCE -> ALARM AND INHIBIT TO START. DEACTIVATED (VALVE NOT TOTALLY CLOSED) AT THE END OF STARTING SEQUENCE -> ALARM (11) TRIP IF 1oo4 SEISMIC ELEMENTS IS ABOVE HH LEVEL AND AT LEAST ONE OF ALL THE OTHER THREE SEISMIC ELEMENTS IS ON ALARM LEVEL H. (12) TSHH ARE INCLUDED IN HEATERS. HH MEANS HEATER CUT-OUT, NOT GAS TURBINE STOP. (13) HIGH PRESSURE ON BALANCING LINE DISCHARGE SIDE COMPARED WITH COMPRESSOR SUCTION PRESSURE. (14) FOLLOWING CONTROLS ARE CREATED BY UNIT CONTROL PANEL MARK VIe PCD:

-l3 = R = 1.44 -l2 = R = 1.35 -l1 = R = 1.05 -l4 = R = 1.2 cut-out liquid fuel. WHERE R IS: (PT 208 + PT 212) / ((PT205A + PT212) x 0.975) OR FOR NP INTERNAL USE (96AA + 96AP) / ((96CD +96AP) x 0.975)

(15) WHEN SELECTED AS AUXILIARY (16) 1oo3 VOTING LOGIC. LEL = 5% (17) 2oo3 VOTING LOGIC. LEL = 10% (18) FOR TRAIN C-231-001B, TAG OF XV, XX AND RELEVANT LIMIT SWITCHES ZSH/ZSL SHALL BE 2128 (19) FOR TRAIN C-231-001B, TAG OF XV, XX AND RELEVANT LIMIT SWITCHES ZSH/ZSL SHALL BE 2122 (20) TAG FOR TRAIN B SHALL BE 2125 (21) VALVE CLOSE LIMIT SWITCH STATUS: IF ACTIVATED (VALVE TOTALLY CLOSED) DURING STARTING SEQUENCE -> ALARM & INHIBIT TO START IF DEACTIVATED (VALVE NOT TOTALLY CLOSED) ABOVE MINIMUM OPERATIVE SPEED OF G.T. AXIAL COMPRESSOR -> ALARM (22) SHUTDOWN IF ALREADY SWITCHED (23) A STANDS FOR AUTO I STAND FOR INHIBITED (24) The logic that would be followed to perform the ON / OFF command for the heaters and the logic that must be considered during GT starting is:

Logic to be managed by DCS and MCC: IF FE-5005A (unit 1) + FE-5005A (unit 2) > or = 3000 kg/h AND IF TIT5041 (96FTG) < + 4C THEN: heater ON. IF TIT- 5039 (FTG-1A) or TIT0340 (FTG-1B) > or = + 7C OR IF TIT- 5041 (96FTG) > + 90C THEN: heater OFF. Logic to be managed by MKVIe: The interlock to the opening of SRV/GCV during GT starting procedure: IF TIT5039 (FTG-1A) or TIT5040 (FTG-1B) > or = + 8C AND TG-FG-1 (231-TE-5006AA) is not low

"START PERMISSIVE" MEANS PERMISSIVE TO INITIATE THE STARTING SEQUENCE "RUN PERMISSIVE" MEANS PERMISSIVE TO INITIATE THE TURBINE STARTUP


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MATRIX LEGEND X = ACTIVATE/CONTROL VALVE H = ACTION ON HIGH LEVEL HH = ACTION ON 2nd HIGH LEVEL L = ACTION ON LOW LEVEL LL = ACTION ON 2nd LOW LEVEL F = FAULT I = INHIBIT O= OPEN C=CLOSE D=DEVIATION P=PERMISSIVE R=RUN S=STOP GENERAL NOTE:

1. LIMIT SWITCHES FOR VALVE WILL GENERATE AN ALARM ONLY WHEN THE LIMIT SWITCH IS IN A POSITION CONTRARY TO THE COMMAND POSITION. 2. CONTACTS FOR LIMIT SWITCHES ARE CLOSED WHEN VALVE IS ACTUATED TO CORRESPONDING SWITCH POSITION. 3. AN ALARM WILL BE ANNUNCIATED WHEN AN ANALOG SIGNALS IS DETECTED IN FAULT; IN CASE OF 2oo3 VOTING FUNCTION, TRIP WILL BE INITIATED IN CASE OF 2 ANALOG SIGNALS ARE IN FAULT.

SIGNALS TAG NUMBERS RULE:

THE SIGNALS TAGGED ON CAUSE & EFFECT CHART AS FOR EXAMPLE 231-TE -5159A-1A, WILL BE TAGGED ON SITE AS FOLLOWS:

FOR TRAIN A: 231-TE -5159A-1A FOR TRAIN B: 231-TE -5159B-1A

REFERENCE DOCUMENTS:

PIPING & INSTRUMENTS DIAGRAM SOM5081820/1 VP-18-101-C-231-010A/B-SK-001 UCS I/O LIST SOM6628418/3 VP-18-101-C-231-001A/B-SK-004 CONTROL SYSTEM FUNCTIONAL DESCRIPTION SOM6629548/4 VP-18-101-C-231-001A/B-SK-015 CCC CONTROL SYSTEM DESCRIPTION SOM6629507/4 HOLD FIELD INSTRUMENT LIST SOM6628002/3 VP-18-101-C-231-009A/B-SK-001 CCC MODBUS LIST SOM6629508/4 HOLD


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SHUTDOWN SEQUENCE .

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. INITIATING DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REV CATEGORY JOB TAG N.P. TAG SERVICE FROM/TO NOTE . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

4 - - - TURBINE NORMAL STOP (SHUTDOWN) - X X X C C C C X

4 - - - EMERGENCY SHUTDOWN (TRIP) ON MK VIe - X X X O O X

4 - - - EMERGENCY SHUTDOWN (TRIP) ON MK VIeS - C O X O O O X C C C

4 - - - EMERGENCY SHUTDOWN WITH VENT (TRIP WITH VENT) ON MK VIe - X X X O O X

4 - - - EMERGENCY SHUTDOWN WITH VENT (TRIP WITH VENT) ON MK VIeS - C O X O O O X C C C


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FUEL GAS SYSTEM .

CAUSE AND EFFECT CHART .

SOM5081820 003

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0 FUEL GAS 231-FIT 5005 A1 96FG-1A FLOW ORIFICE DIFF. PRESSURE INDICATION FIELD / MKVIe L X X

0 FUEL GAS 231-FIT 5005 A2 96FG-1B FLOW ORIFICE DIFF. PRESSURE INDICATION FIELD / MKVIe L X X

0 FUEL GAS 231-FT 5002 A - FUEL GAS INLET FLOW MEASUREMENT FIELD / MKVIeS HH X X

0 FUEL GAS 231-PDT 5006 A - FUEL GAS Y STRAINER DIFF. PRESSURE FIELD / MKVIe H X

0 FUEL GAS 231-PIT 5003 A 96FG-1 FUEL GAS PRESSURE UPSTREAM VALVE FIELD / MKVIe (8) L/H IL IH X

0 FUEL GAS 231-PT 5005 A 96FG FUEL GAS PRESSURE FLOW CALCULATION FIELD / MKVIe X X

0 FUEL GAS 231-PT 5005 A1 96FG-2A INTERSTAGE FUEL GAS PRESSURE FIELD / MKVIe

(1),(8)

H X X

IH X

0 FUEL GAS 231-PT 5005 A2 96FG-2B INTERSTAGE FUEL GAS PRESSURE FIELD / MKVIe

0 FUEL GAS 231-PT 5005 A3 96FG-2C INTERSTAGE FUEL GAS PRESSURE FIELD / MKVIe

0 FUEL GAS 231-TE 5005 A1A FG-1 FUEL GAS INLET FLOW CALCULATION FIELD / MKVIe X X

0 FUEL GAS 231-TE 5005 A2A FG-2 FUEL GAS INLET FLOW CALCULATION FIELD / MKVIe X X

0 FUEL GAS 231-TE 5006 AA TG-FG-1 FUEL GAS INLET TEMPERATURE FIELD / MKVIe L/H OL/CH1 IL IL X

0 FUEL GAS 231-ZSH 5006 A 33PG-1 FOR VA13-1 FIELD / MKVIe O X

0 FUEL GAS 231-ZSH 5008 A 33PG-3 FOR VA13-2 FIELD / MKVIe O X

0 FUEL GAS 231-ZSL 5006 A 33PG-2 FOR VA13-1 FIELD / MKVIe C X

0 FUEL GAS 231-ZSL 5008 A 33PG-4 FOR VA13-2 FIELD / MKVIe C X

0 FUEL GAS 231-ZSL 5009 A 33VG-2 WARM-UP LINE VENT VALVE STATUS - CLOSED FIELD / MKVIe C X

0 FUEL GAS 231-ZSL 5010 A - FG INTERVALVE VENT ACTUATION CLOSED FIELD / MKVIeS (9) C P X

0 FUEL GAS 231-ZT 5003 A1 96SR-1 FUEL GAS STOP/SPEED RATIO VALVE POSIT. FIELD / MKVIe (3)

X

X

0 FUEL GAS 231-ZT 5003 A2 96SR-2 FUEL GAS STOP/SPEED RATIO VALVE POSIT. FIELD / MKVIe

0 FUEL GAS 231-ZT 5004 A1 96GC-1 FUEL GAS CONTROL VALVE POSIT. FIELD / MKVIe (3)

X

X

0 FUEL GAS 231-ZT 5004 A2 96GC-2 FUEL GAS CONTROL VALVE POSIT. FIELD / MKVIe


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0 FUEL GAS 231-PIT 5007 A 96PG-1 FUEL GAS PURGE SYSTEM FIELD / MKVIe H X

0 FUEL GAS 231-ZSH 2052 33FB-O FUEL GAS SHUT-OFF VALVE OPEN FIELD / MKVIeS (19) O X

0 FUEL GAS 231-ZSH 2053 33FV-1 FUEL GAS VENT VALVE OPEN FIELD / MKVIeS (18) O X

0 FUEL GAS 231-ZSL 2052 33FB-C FUEL GAS SHUT-OFF VALVE CLOSED FIELD / MKVIeS (19) C X

0 FUEL GAS 231-ZSL 2053 33FV-2 FUEL GAS VENT VALVE CLOSED FIELD / MKVIeS (18) C X

1 FUEL GAS 231-ZSH 5007 A 33PV-2 NOZZLE PURGE AIR VENT VALVE FIELD / MKVIe O I X

1 FUEL GAS 231-PT 5002 A 96FG-B FUEL GAS PRESSURE FLOW CALCULATION FIELD / MKVIeS X X


DOCUMENT CODE

SOM6629813

REVISION


PAGE MARKER N/A

SECURITY CODE N


SIZE 3

LANGUAGE A


SHEET 7 of 49

.

LIQUID FUEL SKID .


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0 LIQUID FUEL SKID 231-LIT 5013 A - LIQUID FUEL TANK LEVEL FIELD / MKVIe L/H H L X

0 LIQUID FUEL SKID 231-PDIT 5014 A 96HF-2 PRESS. LIQUID FUEL FILTERS FIELD / MKVIe H X

0 LIQUID FUEL SKID 231-PIT 5018 A 96FL-1 PERMESSIVE TO START LIQUID FUEL SYSTEM FIELD / MKVIe L I X

0 LIQUID FUEL SKID 231-SE 5013 A 77FD-1 LIQUID FUEL SYSTEM FIELD / MKVIe L X X X

0 LIQUID FUEL SKID 231-SE 5015 A 77FD-3 LIQUID FUEL SYSTEM FIELD / MKVIe L X X X

0 LIQUID FUEL SKID 231-TIT 5013 A1 - LIQUID FUEL TEMPERATURE FIELD / MKVIe

(6)

LL/L/H

IL LL

X



0 LIQUID FUEL SKID 231-ZSH 5014 A 33FL-1 LIQUID FUEL SHUT OFF OPEN FIELD / MKVIeS O X

0 LIQUID FUEL SKID 231-ZSL 5014 A 33FL-2 LIQUID FUEL SHUT OFF CLOSED FIELD / MKVIeS C X

0 LIQUID FUEL SKID 231-ZSL 5019 A 33ED-1 COMB. WRAPPER DRAIN VALVE VA17-6 CLOSED FIELD / MKVIeS (10) C I X

0 LIQUID FUEL SKID 231-TIT 5014 A - LIQUID FUEL TEMPERATURE FIELD / MKVIe X X

1 LIQUID FUEL SKID 231-ZSH 2051 33LB-O LIQUID FUEL SHUT-OFF VALVE OPEN FIELD / MKVIeS O X

1 LIQUID FUEL SKID 231-ZSL 2051 33LB-C LIQUID FUEL SHUT-OFF VALVE CLOSED FIELD / MKVIeS C X


DOCUMENT CODE

SOM6629813

REVISION


PAGE MARKER N/A

SECURITY CODE N


SIZE 3

LANGUAGE A


SHEET 8 of 49

.

STEAM INJECTION SKID .


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0 STEAM INJECTION SKID 231-PIT 5025 A 96PJ-1 STEAM INLET FLOW CALCULATION FIELD / MKVIe L X X X

1 STEAM INJECTION SKID 231-TE 5025 A1A ST-SJ-1 STEAM INLET FLOW CALCULATION FIELD / MKVIe

L

X

X



0 STEAM INJECTION SKID 231-ZSH 5029 A 33SJ-1 STEAM INJECTION STOP VALVE OPEN FIELD / MKVIe O X X

0 STEAM INJECTION SKID 231-ZSL 5029 A 33SJ-2 STEAM INJECTION STOP VALVE CLOSED FIELD / MKVIe C X

0 STEAM INJECTION SKID 231-ZSL 5026 A 33CJ-1 STEAM INJECTION CONTROL VALVE CLOSED FIELD / MKVIe C X

0 STEAM INJECTION SKID 231-ZSL 5027 A 33BS-4 STEAM INJECTION MANIFOLD DRAIN VDI-4 FIELD / MKVIe C X

0 STEAM INJECTION SKID 231-ZSL 5030 A 33BS-1 STEAM INJECTION DRAIN VALVE N.1 CLOSED FIELD / MKVIe C X

0 STEAM INJECTION SKID 231-ZSL 5031 A 33BS-2 STEAM INJECTION DRAIN VALVE N.2 CLOSED FIELD / MKVIe C

X

0 STEAM INJECTION SKID 231-ZSL 5032 A 33BS-3 STEAM INJECTION DRAIN VALVE N.3 CLOSED FIELD / MKVIe C X

0 STEAM INJECTION SKID 231-FIT 5025 A1 96SJ-1 FLOW ORIFICE DIFF. PRESSURE INDICATION FIELD / MKVIe X

X

0 STEAM INJECTION SKID 231-FIT 5025 A2 96SJ-2 FLOW ORIFICE DIFF. PRESSURE INDICATION FIELD / MKVIe


DOCUMENT CODE

SOM6629813

REVISION


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LANGUAGE A


SHEET 9 of 49

.

FUEL GAS SCRUBBER SYSTEM .


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2 FG SCRUBBER 231-LIT-5039A/B/C 71GF-2/3/4 A F-001A CYCLONE SEPARATOR LEVEL FIELD / DCS (6) LL, HH CHH OHH HH

OHH

OHH

OHH HH CHH HH X

2 FG SCRUBBER 231-LIT-5040 71GFCO-1 F-001A COALESCER LEVEL FIELD / DCS X 2 FG SCRUBBER 231-LIT-5038 71GF-1A F-001A CYCLONE SEPARATOR LEVEL FIELD / DCS L, H OH, CL X 2 FG SCRUBBER 231-ZSL-5037 --- F-001A DRAIN VALVE CLOSE LIMIT SWITCH FIELD / DCS L 2 FG SCRUBBER 231-ZSH-5037 --- F-001A DRAIN VALVE OPEN LIMIT SWITCH FIELD / DCS H X 2 FG SCRUBBER 231-LIT-5043A/B/C 71GF-2/3/4 B F-001B CYCLONE SEPARATOR LEVEL FIELD / DCS (6) LL, HH CHH

OHH HH

OHH

OHH

OHH HH CHH HH X

2 FG SCRUBBER 231-LIT-5044 71GFCO-2 F-001B COALESCER LEVEL FIELD / DCS X 2 FG SCRUBBER 231-LIT-5042 71GF-1B F-001B CYCLONE SEPARATOR LEVEL FIELD / DCS L, H OH, CL X 2 FG SCRUBBER 231-ZSL-5039 --- F-001B DRAIN VALVE CLOSE LIMIT SWITCH FIELD / DCS L X 2 FG SCRUBBER 231-ZSH-5039 --- F-001B DRAIN VALVE OPEN LIMIT SWITCH FIELD / DCS H X 2 FG SCRUBBER 231-TIT-5039 FTG-1A FUEL GAS TEMP. BEFORE HEATER 23FG-1A FIELD / DCS (24) X 2 FG SCRUBBER 231-TIT-5040 FTG-1B FUEL GAS TEMP. BEFORE HEATER 23FG-1B FIELD / DCS (24) X 2 FG SCRUBBER 231-PIT-5037 --- FUEL GAS PRESSURE AFTER HEATER FIELD / DCS 2 FG SCRUBBER 231-TIT-5041 96FTG FUEL GAS TEMP. AFTER HEATER FIELD / DCS (24) X

NOTE: - The Fuel Gas Scrubber Control is performed totally by DCS and not by MarkVIe. This sheet is introduced only to show the Cause & Effect logic of the Fuel Gas Scrubber System.

- 231-TE-5042A and 231-TE-5042B are the RTDs measuring the temperature of the heater 23FG-1A and 231-TE-5043A and 231-TE-5043B are the RTDs measuring the temperature of the heater 23FG-1B. Upon detection of HH temperature of the heater individual heater cut-out signals are transmitted to DCS.


DOCUMENT CODE

SOM6629813

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SHEET 10 of 49

1. .

COOLING AND SEALING AIR SYSTEM .


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0 COOLING AND SEALING AIR SYS. 231-PDIT 5049 A 96CS-1 INLET PLENUM DIFFERENTIAL PRESSURE FIELD / MKVIe X X

0 COOLING AND SEALING AIR SYS. 231-PDIT 5050 A 96BD-1 TOTAL BELL MOUTH DIFFERENTIAL PRESSURE FIELD / MKVIe X X

0 COOLING AND SEALING AIR SYS. 231-ZSH 5049 A 33CB-2 VAB-2 AXIAL COMPRESSOR BLEED STATUS-OPEN FIELD / MKVIe O I X

0 COOLING AND SEALING AIR SYS. 231-ZSH 5050 A 33CB-1 VAB-1 AXIAL COMPRESSOR BLEED STATUS-OPEN FIELD / MKVIe O I X


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SOM6629813

REVISION


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LANGUAGE A


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CONTROL AND PROTECTION SYSTEM .


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4 CONTROL AND PROTECTION SYS. 231-BE 5061 A1 28FD-2 FLAME DETECTOR COMB. CHAMB.#2 PRIMARY FIELD / MKVIeS

(7)

LL

CLL OLL LL OLL OLL OLL LL X

CLL

X

X




1 CONTROL AND PROTECTION SYS. 231-PDIT 5067 A1 96EA-1A EXHAUST DUCT BACK-PRESSURE FIELD / MKVIeS

(1)

H/ HH

CHH OHH HH OHH OHH OHH HH X

CHH

HH X

1 CONTROL AND PROTECTION SYS. 231-PDIT 5067 A2 96EA-1B EXHAUST DUCT BACK-PRESSURE FIELD / MKVIeS

1 CONTROL AND PROTECTION SYS. 231-PDIT 5067 A3 96EA-1C EXHAUST DUCT BACK-PRESSURE FIELD / MKVIeS

0 CONTROL AND PROTECTION SYS. 231-PIT 5063 A 96NCP-1 NO CONTACT PROBE COOLING AIR LOW PRESS. FIELD / MKVIe L X

0 CONTROL AND PROTECTION SYS. 231-PIT 5066 A 96AP-1 AMBIENT PRESSURE FIELD / MKVIe X X

0 CONTROL AND PROTECTION SYS. 231-PT 5065 A1 96CD-1 AXIAL COMPRESSOR DISCHARGE PRESSURE FIELD / MKVIe

(1)

X

X




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SOM6629813

REVISION


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0 CONTROL AND PROTECTION SYS. 231-SE 5061 A1 77NH-1 HP SHAFT SPEED CONTROL FIELD / MKVIe

(1)

X

X



4 CONTROL AND PROTECTION SYS. 231-SE 5062 A1 77HT-1 HP SHAFT SPEED CONTROL FIELD / MKVIeS

(1)

HH

CHH O HH HH O

HH O

HH O

HH HH

CHH

X



0 CONTROL AND PROTECTION SYS. 231-SE 5063 A1 77NL-1 LP SHAFT SPEED CONTROL FIELD / MKVIe

(1)

X

X



4 CONTROL AND PROTECTION SYS. 231-SE 5064 A1 77LT-1 LP SHAFT SPEED CONTROL FIELD / MKVIeS

(1)

HH

CHH O HH HH O

HH O

HH O

HH HH

CHH

X




DOCUMENT CODE

SOM6629813

REVISION


PAGE MARKER N/A

SECURITY CODE N


SIZE 3

LANGUAGE A


SHEET 13 of 49

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4 CONTROL AND PROTECTION SYS. 231-TE 5076 A1 TT-XD-1 EXHAUST TEMPERATURE MONITORING FIELD / MKVIe

(2)

H/ HH HH HH HH CHH

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4 CONTROL AND PROTECTION SYS. 231-TE 5076 A2 TT-XD-2 EXHAUST TEMPERATURE MONITORING FIELD / MKVIe X












1 CONTROL AND PROTECTION SYS. 231-TE 5077 A1 CT-IA-1 AXIAL COMPRESSOR INLET TEMPERATURE FIELD / MKVIe

(3)

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1 CONTROL AND PROTECTION SYS. 231-TE 5077 A2 CT-IA-2 AXIAL COMPRESSOR INLET TEMPERATURE FIELD / MKVIe


DOCUMENT CODE

SOM6629813

REVISION


PAGE MARKER N/A

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SIZE 3

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SHEET 14 of 49

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