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Offer for 150MW power plant ( 3 X FT4 units ) 60 Hz



photo for illustration purposes only (NOT actual plant)

Please find details on 150 mw NG Power plant

FT4( 50 mw) X 3 units



• Title: Supply of Pratt & Whitney FT4C-1D Twin Pac Power Plants



• Subtitle: Refurbished, Warranty



Slide 2: Product Overview



• Title: FT4C-1D 50MW Twin Pac



• Description:



o Outdoor, self-contained, automatic, gas-turbine powered electric generating plant.



o Nominally rated at 50 MW @ ISO conditions.



o Capable of local operation with remote-control panel option.



o Built-in starting capability in event of AC power loss.



o Assumes full load in less than ten minutes after start signal, providing "black-out" protection.



Slide 3: Key Components (General Arrangement)



• Title: General Arrangement & Description



• Components:



o Electric Machinery Manufacturing Co. open cycle, air-cooled generator:



? 57.3 MVA (Base), 61.1 MVA (Peak)



? 13.8 KV, 0.90 power factor



? Two-pole, turbine type with brushless exciter



o Two (2) opposed, direct-connected Pratt & Whitney Aircraft FT4C- 1D Gas Turbines.



o Turbines coupled via diaphragm couplings to generator shaft.



o Generator can operate at half power with one turbine decoupled.



Slide 4: System Details



• Title: System Features



• Lubrication Systems:



o Gas turbines have their own lubrication systems with storage tanks.



o Generator has a separate lubrication system with AC motor-driven pump and DC backup.



o Both systems are air-cooled.



• Electrical Connection:



o Generator top connected via 3000 amp, 15KV, 95 KV BIL bus duct.



o Connects to high voltage metal clad switchgear with 1000 MVA, 3000 amp Air Circuit Breaker.



• Enclosures and Layout:



o Turbines, generator, and controls are in painted steel enclosures.



o Entire 50 MW plant occupies approx.



106'×32' space.



o Unit set on a



106'×20' reinforced concrete pad on 3000 psf soil.



o Diaphragm walls separate turbines from generator for cooling and fire protection.



Slide 5: Safety and Control



• Title: Fire Protection and Control Enclosure



• Fire Protection:



o Automatic fire protection system for each gas turbine.



• Control Enclosure Houses:



o Gas turbine control



o Generator control panel



o Motor Control Center



o High voltage metal clad switchgear



o Batteries

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Slide 6: Equipment Included



• Title: Major Equipment Included



• Each Twin Pac includes:



o Steel enclosure with inlet and exhaust stacks.



o Gas Turbine Prime Movers, each with:



? Lubrication system



? Ignition system



? Fuel system (including fuel control)



? Starting system



? Fire Protection



o Open Cycle, Air Cooled Generators with brushless exciters and associated electrical equipment:



? Voltage regulators



? High and low voltage switchgear



? Turbine and generator control panels



? Sequencers



? Protective Relaying



? Motor Control Centers



? Batteries and Chargers



? Auxiliary Transformers



? Master Terminal Strip



Slide 7: Operation Modes



• Title: Twin Pac Operation



• Designed for:



o Local or optional remote automatic operation on utility distribution/transmission system.



o Can operate as an "isolated" generating station (from local or remote HMI) during blackout.



• Five Modes of Operation:



o 1. Parallel - Manual and Automatic (Remote - Local)



o 2. Isolated - Manual and Automatic (Remote - Local)



o 3. Isolated Precise - Manual and Automatic (Local Only)



o 4. Idle - (Local Only)



o 5. Test - (Local Only)



Slide 8: Instrumentation and Controls



• Title: Turbine Control System (TCS)



• Hardware:



o Based on Rockwell Automation ControlLogix platform or equivalent.



o ControlLogix CPU interfaces with Rockwells Flex I/O for higher performance and flexibility.



• Functions:



o Performs gas turbine control and unit sequencing (firing, acceleration, speed governing, shutdown, cool down).



o Control tasks: close loop governor, unit start/stop sequencing, safety monitoring.



o Mimics OEM control system functions with improved reliability, configurability, low maintenance.



o Open platform for end-user code changes and maintenance.



o Includes all hardware, engineering, software, drawings, assembly, and documentation.



Slide 9: Operational Overview



• Title: Operational Control



• Fuel Control & Sequencing:



o Individual and tandem turbine operation.



o Each turbine has PID control loops for N1, N2, N3 speeds, and TT7 (exhaust gas temperature).



o Sequencing for individual and tandem engine start/stop.



• Operation Modes (Automatic/Manual):



o Parallel / Isolated Droop / Isolated Precise / Synchronous Condenser



o Single engine operation capable for any mode.



o "Decoupled Mode Switch" for extended single engine operation (prevents wind-milling of non-running engine).



• Authority Modes:



o Selected via MODE SELECTOR SWITCH (43-1) on local Operators Control Panel.



o All ESD push buttons active regardless of LOCAL/REMOTE/TEST switch position.



Slide 10: Operator Interface



• Title: Local and Remote C ontrol



• Local Control:



o Unit controlled only from Local Operator Control Panel.



o View all switch positions, control modes, operating parameters, alarms, and shutdowns on local HMI.



• Remote Control:



o Unit controlled from local HMI and/or control room HMI.



o Local panel switches (Start/Stop, Raise/Lower, Load Select) disabled when 43-1 is in Remote position.



• System Operation Mode (External Control):



o Sub-mode of Remote; Remote Mode must be active first.



o Enables control room HMI and local HMI controls.



o Control Room HMI or Local HMI can enable/disable System Operation Mode.



o External Control cannot "take" control; all control buttons disabled when enabled (except disable button).



• Base turbine control system includes: hardware, engineering, software, dr awings, assembly, system documentation.



Slide 11: Human-Machine Interface (HMI)



• Title: Operator Interface Details



• Local Operator Interface:



o HMI based on Rockwell Automation FactoryTalk Product line.



o Operates on a Panel PC, mounted in control cabinet door or 19”



rack.



• Displays:



o Seven project-specific graphic displays and four custom graphic displays.



o Trending and alarm lists (standard).



o Hardwired manual controls for start/stop, regime control, basic parameter monitoring.



• HMI Screens:



o Developed using Rockwell FactoryTalk View Site Edition software.



o Primary screens: Full-screen display of data and control elements for unit/system monitoring.



o Secondary screens: Pop-up windows displaying specific information or action commands, called from Primary screens.



Slide 12: Monitoring Systems



• Title: Vibration Monitoring



• Vibration Monitor:



o Vitec System using three channels (one GG, two FT) to monitor gas turbine and turbine.



o HSI screen displays data from vibration probes.



o Indicates probe locations, vibration levels, alarm, and shutdown levels.



o Example screen with additional generator monitoring.



Slide 13: Engine Enclosure Fire Protection



• Title: Fire Protection System



• Detection Subsystem:



o Three (3) 450°F thermal detectors: near right second ary Air Inlet,



over burner, near enclosure cooling air exhaust.



o Activation automatically actuates extinguishing system, closes fire valve(s) and dampers, signals emergency shutdown, alarms.



• Actuation:



o Activated by thermal detection system.



o Can be manually actuated by two releases: one in generator enclosure, one outside engine enclosure.



• Extinguishing Subsystem:



o Total flooding type using carbon dioxide (CO2).



o CO2 is odorless, colorless, electrically non-conductive, efficient for all fire classes.



o Stored in five 75 lbs containers in racks outside each engine enclosure.



• Equipment provided for each engine enclosure:



o Five 75 lbs CO2 storage containers.



o Three thermal detectors, two manual discharge stations.



o Two fire dampers, two gas detectors (gas operation).



o One turbine enclosure fire relay.



o Additional pipe, conduit, wire, hardware.



Slide 14: Air Start Pac



• Title: Air Start Pac (Optional)



• Purpose:



o Furnished if natural gas (100 PSIG and 2625 SCFM) is not continuously available for starting.



o Provides energy for gas generator starter turbine.



o Provides air injection for fuel atomizing for liquid-fueled engines.



• System Components:



o Housed in a steel enclosure.



o Consists of motor driven compressor(s) and air storage bottles.



o Air stored at 485 PSIG.



o Capable of furnishing 130 pounds per minute airflow.



o Automatically recharges after each start attempt.



Slide 15: Proposal



• Title: Proposal Details



• Offer: Supply of three (03) zero (0) hours, factory refurbished Pratt & Whitney FT4C-1D units.



• Specifications: 50 MW each, dual fuel, 13.8 kV, 60 Hz.



• Location: Offered FOB CT.



• Condition: Subject to prior sale.



• Pricing: Price per unit, USD 15,100,000.



Slide 16: Terms and Conditions



• Title: Terms and Conditions



• General:



o All equipment subject to prior sale.



o Quotation valid for 60 Days.



• Payment Terms:



o 50% upon receipt of Purchase Order.



o 45% at time of shipment.



o 5% post commissioning or 45 days from site arrival (whichever first).



• Ownership & Shipping:



o Ownership transfers at WGPW’s Bloomfield, CT facility.



o Shipping Terms: Ex-Works Bloomfield CT.



o Subject to WGPW Terms and Conditions Sales Agreement.



• Exclusions:



o Pricing does not include equipment packaging and/or shipping costs.



o Pricing does not include fees, taxes, custom duties, etc.



• Services:



o Field Service Rates apply for site TFA’s.



• Warranty:



o One year or one thousand (1000) hours from installation, OR eightvery date (whichever occurs first).



#echobr

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