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Some time ago we were offered the following plant .



We now have buyer but are told this is sold .



If you can offer a similar alternative please do send detailed offer that MUST include spec, price and photos and/or Video as POL



SALE OF SIEMENS GAS TURBINE AND GENERATOR PACKAGE



INFORMATION MEMORANDUM=



The Siemens Gas Turbine and Generator Package is stored , never fired and under OEM warranty period



P ERIMETER OF PROPOSED OPERATION



Overview of the operation



Figure 2: SIEMENS Gas Turbine SGT5-4 000 F &Generator SGen5-100 0 A



Siemens Gas Turbine and Generator package



Gasturbine



It is an heavy duty gasturbine modelSGT5 - 4000F . The machine is characterized by single casing and axial flowdesign .



The gas turbine is mainly composed of:



Compressor:

15 stagescompressor;

one variable - pitch inlet guide vane rows;

extraction ports behind - stationary blade 5 - stationary blade 9;

compressor pressure ratio approx.17;

Ring combustor:

one Combustion Chamber;

24 burners;

one ignition devices per burner;

Turbine:

4 Stages;

Bearings

2 Bearings (journal @ turbine end, thrust + journal @ compressor end);

Turning gear

type hydraulic motor, speed 10 0 RPM;

mechanical control and protection system;

Gas turbine instrumentation and actuation.



Figure 3: SIEMENS Gas Turbine SGT5-4 000 F inside the storage shed



Gas turbinesystems:



Gaseous fuel package

one emergency stopvalves;

two control valves (pilot +premix);

Lubrication oil system with lube oiltank

lube tank Capacity approx. 16,5 m³ (Capacity of oil system approx. 15 m³);

oil retention time approx. 8min;

two oil mist extraction fans;

two Main oil pump type centrifugal 10 0 % capacity of one pump, drive AC motor;

one emergency oil pump, type centrifugal, drive DC motor;

one jacking oil pump, type vane pump, drive ACmotor;

one main oil filter, type duplex, capacity 2x100 %, filter mesh absolute0 .0 20 mm;

one jacking oilfilter,type cartridge , capacity 100% , filter mesh absolute

0. 020mm;



2 x 100% plate type heat exchanger;

hydraulic clearance optimization (HCO)package;

hydraulic oil package for controlsystem .



Equipment for gasturbine:



fuel gas flow metering for performance test only;

Advanced Compressor Cleaning System(ACCS);

set of tools for initial assembly and inspection;

set of major inspection tools and a set of standard tools.



Air intakesystem:



filter system , with pre - and high efficiency filter (multi-stage static filter):

intake volume approx. 550m³/s;

design pressure maximum/minimum +30 00 / - 220 0 Pa;

design temperature minimum - 10°C;

design temperature maximum +40°C;

pre filter/fine filter, number approx. 540 , air flow per cell approx. 3650 m³/h, arrestance class acc. To EN 779: 1993 Fine filter F5 - PrefilterF9;

initial pressure drop system approx. 58 0 Pa;

final pressure drop system between pre filter and GT compressor inlet (recommended filter change) approx. 10 00 Pa;

inlet air filter house including weather hood, internal support structure, instrumentation, lighting, power sockets, manhole , access ladders, platforms and doors;

implosion doors (filter house);

anti - icing (warm water to air heat exchangers);

evaporative cooler;

interconnecting duct work with expansion joint, damper and silencer.



Exhaust gas systems:



Diffuser:

exhaust gas volume flow (at ISO-conditions) approx. 1535 m³/s;

design temperature minimum - 10°C;

design temperature maximum +40°C;

design ambient temperature +15°C;

design pressure minimum - 2000Pa;

design pressure maximum (diffuser) +54 00 Pa;

design flue gas temperature (fuel gas operation) approx. 62 0 °C.



Noise enclosure for gas turbine:



structural steel with corrosion protection;

noise abatement panels galvanized;

internal service platforms and ladders galvanized;

doors with safety windows;

internal lighting including emergency lighting.



Ventilation system for gas turbine enclosure:



air intake openings with protective grills, dampers and silencers;

exhaust air handling unit on top of enclosure , equipped with back draft dampers, fans including mechanical redundancy and silencers .



Tight fitting noise enclosure for each of the following skids:



fuel gas skid (ventilation system combined with the gas turbine enclosure ventilationsystem).



CO 2 Firefighting system for turbine unit,including:



battery of high pressure bottles for CO2 and direction valve station;

piping system from bottle rack to spray nozzles inside the enclosures including supports;

fire detection and control system with local panel .



Gas Turbine Control System



Turbine Controller:

redundant automation processor for closed - loop control functions;

I/O modules as perI/O;

Turbine Failsafe Protection and Trip System:

failsafe system for protection and trip functions;

Turbine Function Group Automatic and Operational Protection System:

redundant automation processor for open - loop, sequence control functions and operational protectionfunctions;

I/O modules as per I/O;

Turbine Operating / Monitoring / Engineering System:

2 Operator Terminal with two 19” LCD monitor, keyboard and mouse;



fault tolerant Application Server for operating, monitoring and engineering functions;

2 Printer (A4 , Color Laser);

Turbine Bus System;

Application Bus and Automation Bus with all necessary network components;

Turbine Analysis System Win_TS;

Win_TS Analysis System hardware +peripherals;

Software for system basicfunctions;

Software for Gas Turbine Special Condition Monitoring;

Software for Gas Turbine Vibration Analysis;

Software for Gas Turbine Thermodynamic Calculations;

I&C Cables, turbine related special I&C cables ( flame monitoring cable , bus cable);

I&C Software (system and application programs) on disks;

Signal Interface (OPC-link) with Plant DCS;

Ethernet terminal point (RJ45 or Sub - D) for exchange of 500 signals at most 1 TP for all;

Signal Interface (hardwired) with Plant DCS;

Terminal points for exchange of 70 binary signals at most;

Terminal points for exchange of 30 analog signals at most;

Terminal point for exchange of bus clock synchronization signal;

generator protection cabinet(CHA);

Synchronization / Synchro-check equipment(CHA);

gas detection system(CYQ);

2 Inverter for Siemens supplied turbine DCS in PCC (BRU);

Starting frequency converter (CJT) consisting of:

line side and machine side B6C converter bridge;

DC link between line side and machine side converter;

overvoltage protection on line side and machine side;

speed control;

compressor washing function;

boiler purge function (1 0 minutes);

active power 4 .0 MW, Rated apparent power 517 0 kVA, Rated input voltage 1.8 kV, DC link current 1940 A, DC link voltage 2100V;

Thyristors: TypeT1451N5200 , Number per branch1 , Rated current 2 , 020A,

Voltage rating factor2 . 04;



Smoothing reactor(DClink): Rated current1600A, Starting current1940A,

Inductivity 1.8 mH @ 2.5 kA, Nominal insulation voltage Class H for 3 kV;



Rated losses 48kW;

Degree of protection IP3 0 ;

Type of cooling Forced air:

Required cooling air 4500m³/h;

Noise sound pressure level at 50 Hz power supply 75 dB(A);

Weight ( compact unit including DC link reactor) 2700 kg;

Static excitation equipment (CJT) consisting of:



fully controlled converter bridge typeB6C;

redundant bridges 3 x 50%;

disconnect switch for maintenance during operation;

equipment for rapid deexcitation;

line side overvoltage protection;

DC side overvoltage protection;

2 manual and 2 automatic controller;

Power System Stabilizer;

starting frequency converter transformer with metal enclosure (IP23) (MBJ)

static excitation equipment transformer with metal enclosure (IP23) (MKC) .

maximum cont . Excitation current IfN 1764 A, Excitation system nominal current IEN 194 0 A, Ceiling current IP (1 0 s) 2646 A, Rated input voltage US 540 V, Ceiling voltage UP 625V

Thyristors: Type of Thyristors T15 0 9N1800 , Number of bridges 3 x50% ,

Voltage rating factor2 . 35



voltage controller: Control accuracy 0 .5 %, Control range (with generator connected to the grid) 95 .. 105 % , Setting range (manual) 0 .. 11 0 % , Controllerdeadband 0. 1% , Ceilingvoltagefactor2 .0, Excitationnominal response 3 s - 1, Initial excitation time 10 ms. Rated losses (without transformer) 10 . 5kW;

type of cooling Forced air: - Required cooling air 250 0 m³/h - Noise sound pressure level at 5 0 Hz power supply 7 0 dB(A) - Weight 11 00 kg Degree of protection IP30 .



Fuel gas system:



2 Dust - liquid separator, Vertical, dualstage:

1st stage: baffle plate;

2nd stage: coalesce cartridge;

MAWP: 44 barg MAWT:+60°C;

consumption metering system , Orifice type, acc. to spec. of DGTI - 2008 - 0131:

- 10” (DN250) ANSI3 00 ;



MAWP: 47barg;

consisting of: Flow straightener, Inlet piping, Flow meter , High pressure calibration, Outlet piping, Thermowell , Gasket, Dust cap for pressure connection;

Two Efficiency heater U-Tube bundle with trapped tube plate , carbon steel 10” (DN25 0 ) ANSI 3002/2-way;

Dust - liquid separator, Vertical , dual stage:

1st stage: baffle plate;

2nd stage: coalesce cartridge;

MAWP: 44 barg, MAWT:+170°C;

Condensate tank Horizontal with two saddles 2 ,000 l, double wall:

MAWP: atmospheric, MAWT:+60°C;

Final filter Vertical , single stage,Cellulose cartridge:

MAWP: 44 barg, MAWT:+170°C;



5 Shut-off valve, pneumatic actuated, Ball valve , flanged 10” (DN250) ANSI3 00

MAWP: 44 barg, MAWT:+170°C;

pneumatic actuator Single action , spring return 10” (DN25 0 ) ANSI 30 0 without controlunit,withoutreducingunit,withoutventingunit,withoutsolenoidvalves, etc .



Generator package



It is an Air-Cooled Generator, SGen5-1 000 A Type characterized by:



Rating: 328MVA;

Voltage: 20kV;

Frequency: 50Hz;

Speed: 3000RPM;

Power Factor: 0. 85;

Coolant: Water-to - Air Cooled(TEWAC).



For simple-cycle gas turbine and multi-shaft combined-cycle power plants. The SGen5 - 1000A generator main features are:



world class efficiency with low maintenance design;

multi - zone , indirectly cooled stator windings;

roebelled stator windings with brazed solid end connections;

radially ventilated stator core attached to bedplate;

global Vacuum Pressure Impregnated (GVPI) stator core and stator winding;

core suspended on two axial springs;

radially ventilated and cooled rotor winding;

two low pressure “push” fans mounted at each end of the rotor;

weather and sound proof outer generator enclosure;

overhung collector and brush holders.



Figure 4: SIEMENS GeneratorSGen5 - 1 000 A



The Generator is composed mainly of:



bedplate;

spring mounted, GVPI, radially cooled stator core;

conventionally cooled stator winding with class F insulation;

rotor shaft forging including two shaft mounted ventilation fans;

radially cooled rotor winding with class F insulation;

inner enclosure covering and completing the ventilation circuit;

6 High voltage leads at the top of the generator;

2 Bearings supported in pedestals that are mounted on the bedplate;

overhung collector with collector ring assembly and brush holder;

fixators and grout for fixatores for mounting on foundation;

foundation bolts , nuts and washers;

axial and transvers anchors.



Resistance Temperature Detectors (Platinum, 100 ohms at 0 degrees C):



12 duplex Slot RTDs embedded in the armature windings;

2 duplex RTDs in the generator warm air cooler inlet;

4 duplex RTDs in the generator cold air cooler outlet;

1 duplex RTD in the excitation cold air inlet;

1 duplex RTD in the excitation warm air utlet. Thermocouples (Type K chrome lalumel):

1 triplex TC embedded in each bearing metal;

Rotor grounding brushes;



Provision for vibration monitoring at bearings;

Space heater. Current transformers:

three (3) for each of the three phase line leads;

four (4) for each of the three neutral leads;

grounding equipment including grounding transformer, neutral tie , neutral cable and, ground ingresistor;

all instruments wired to plugs or junction boxes.



Generator Outer Enclosure including:



coolers (2 x 25 %) and liquid detector for a TEWAC unit;

Rotor removal and installation tools.



Low Voltage Switchgear AC Switchgear:

rated insulation voltage 1000V;

rated impulse withstand current (Ipk) 11 0 kA;

rated short time withstand current (Icw) 50 kA (1s);

rated voltage AC 40 0 V, +10% ,- 10%;

system classification to IEC 60364 ACTN-C;

ambient temperature max. +35° C (daily mean temperature);

surface treatment Frame parts: sendzimir galvanized;

enclosure: powder - coated, RAL 7035 Degree of protection acc. to IEC 6 0 529 IP41 IP 00 to cable;

floor below .



DC Switchgear:



control voltage (Us) DC 220V;

current transformer secondary rating 1A;

rated insulation voltage 1000V;

rated voltage DC 220 V, +10% ,- 15%;

system classification to IEC 60364 DCIT;

ambient temperature max. +35 °C (daily mean temperature);

surface treatment Frame parts: sendzimir galvanized;

enclosure: powder - coated, RAL 7035 Degree of protection acc. to IEC 6 0 529: IP41 , IP 00 to cable floor below;

bus bar rated short time withstand current (Icw) 1 0 kA;

rated breaking capacity acc. to IEC 6 0 269 10 kA. Battery , Charger, DC/DC Converter , Inverter The battery voltage ranges are as follows:

number of cells:108;

design operating voltage: 220V;

rated voltage: 216 V (2 .00 V/cell);



float charge voltage: 241 V (2 . 23V/cell);

boost charge voltage (consumers disconnected): 259 V (2 . 4 0 V/cell);

minimum discharge voltage: 198 V (1 . 83V/cell).



BatteryCharger



AC input voltage: 4 00 /23 0 V±10%;

input frequency: 5 0 Hz , ±5%;

float charge voltage: 241 V (at 2 . 23V/cell);

DC output voltage setting range:±5%;

Regulation error ofoutputvoltage±1%onloadvariations0-10 0 % , onfrequency variations ±5%, on input voltage variations ±10%;

DC output voltage ripple content <5% (pp) without battery;

permissible ambient temperatures: 0... +40°C;

radio interference Class ”A” according toEN55011

Degree of Protection: IP31;

Cubicle colour:RAL7035 .



DC - DC Converter



DC input voltage: 22 0 V DC +10% - 15%;

DC output voltage: 26 V DC±1%;

DC output voltage ripple content: 1 %rms;

permissible ambient temperatures: 0.. .+ 40°C;

radio interference Class ”A” according toEN55011;

Degree of protection: IP31;

cubicle color:RAL7035 .



Inverter



DC input voltage: 220 VDC;

permissible range of DC input variation: +10%/ - 15% rated conditions;

bypass input voltage and frequency: 1 x 230 V AC, ±10%, 5 0 Hz;

inverter output voltage: 1 x 23 0 V AC, 5 0 Hz with deviation (static) ±1% , with deviation (dynamic)±5%;

inverter output voltage setting range±5%;

inverter output voltage harmonic content = 3%;

overload capability 150% for 1minute;

permissible ambient temperature: 0... +4 0 °C;

radio interference Class ”A” according to EN55011

degree of Protection:IP31;

cubicle colour:RAL7035;

cooling method forced air (2 *100%).



C ONSERVATION PROCESS



Conservation status check bySiemens



Wooden boards disassembling



Figure 5: wooden boards disassembling



Desiccants substitution



Figure 6: Desiccants position



Flanges desiccants status check andsubstitution



Turbine closing

Figure 7: Turbine flanges desiccants



Once substitute the desiccants, it has been proceeded by closing the GT: all the junctions has been sealed with adhesive oily tape to ensure perfect sealing.



Figure 8: junction sealing



Protective coating with zinc



Figure 9 & 10: casing painting



3.1 Materials store in the outside yard



Figure 11:storage



PCC in the outside yard (Air Conditioning always on)



Stored materials

Figure 12:storage



Figure 13:storage

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