Wind Turbine Nacelle Training Model.

11.1    Technical Description of the model
The Nacelle Training System includes:
–    Fully operational yaw system
–    Complete drive train with gearbox, main shaft, speedsensors, disk brake, and generator
–    Electrical panel with frequency drives, breakers, and power supplies
–    Weather sensors to monitor wind speed and direction
–    Industrial computer with touch-screen interface, using software programmable logic controller and remote inputs and outputs, which control the whole system
–    Emergency buttons and protective guards with limit switches for safe operation
The Wind Turbine Nacelle Training System model shall contain the following components:
–    Mobile Workstation
–    Yaw System
–    Drive Train (Low Speed)
–    Drive Train (High Speed)
–    Electrical Schematics
–    Hydraulic Unit
–    Weather Sensors
–    Electrical Panel
–    Protections
–    Computer
–    Grid-Tie Connection
11.2    Technical Specification of the Model
The model must include the following technical specifications:

Component Name    Specification
Nacelle Training system Model    220V – 50 Hz
Power requirement:     220V – 6A
Physical characteristics    Dimensions (H x W x D)    1.7 x 1.8 x 0.8 m
    Shipping Weight (crated)    Approx. 576 Kg
Yaw system    Slewing bearing    520 mm (20.5 in.) steel, external teeth
    Gear motor    124 W (1/6 HP), 28 rpm
    Hydraulic brake    Single-Acting, hydraulically-applied
Drive Train (low speed side    Gear Motor    560 W (3/4 HP), 50 rpm
    Main Shaft size (L x D)    610 x 45 mm (24 x 1.8 in)
    Speed sensor    Inductive proximity switch
    Vibration Sensor    4-20 mA feedback
    Qty. of pillow blocks    2
Gear box    Ratio    38.45
    features    Lexan window on the side, magnetic plug, breather, sight-glass plug, shrink-disc connection
    oil    1.3 l (0.34 gal) – Synthetic oil CLP ISO PAO VG220
Drive Train (high speed side    Coupling    Torsion-proof multi-disc coupling
    Braking disc diameter    254 mm (10 in.)
    Hydraulic brake    Spring-applied, hydraulically released
Induction Generator    Nominal rating    187 W (1/4 HP), 380 V – 0.8 A
    Number of poles    4
Electrical panel    content    Contactors, breakers, fuses, power supplies (24 Vdc and 5 Vdc), variable frequency drives, remote inputs/outputs, disconnect switch, emergency button
    Remote input/outputs types    24 Vdc digital inputs, relay outputs, 4-20 mA analog inputs, 0-10V analog inputs, high-speed counters, 0-10 V analog outputs, thermocouple inputs
Hydraulic Units    Operating pressure    57 to 64 bar (825 to 925 psi)
    Reservoir    3.8 l (1 gal)
    Oil type    ISO32 or AW32
    content    Accumulator, filter, manual one-way hand pump, check valve, adjustable relief valves, adjustable pressure switch, pressure transmitters, two pressure gauges (which can be connected at different points in the unit)
Weather sensors    Weather Sensors Anemometer (pulse signal) and wind vane (0-5 Vdc signal)
Computer    Type    SIEMENS IPC477C Pro with touch-screen interface
    Operating System    Windows 7 (advanced window) Embedded
    Software PLC    Software PLC SIEMENS Win AC RTX 2009
    HMI software    SIEMENS Win CC Flexible RT512
    Programming    No PLC programming or HMI development to do by the end-user
    Communication protocols    Ethernet (PROFINET), PROFIBUS, USB, Serial, DVI
    Programming and HMI features    – Monitoring and control of each section of the  nacelle
– Alarms management
– Service and troubleshooting
– Historical trends of several operation values
– Fault insertion through the HMI
– Automatic/manual operation
– wind simulation pattern configuration
Included accessories    Padlock and Danger Tags, Oil Accessories (Pan, Tubing, Measuring Cup, etc.), Coupling Alignment Tool, Grease Gun and Tube, Torque Wrench, Standard Wrenches, Allen Keys, Shims
Nacelle Training system with Grid-Tie connection (above specification apply to this model)    220V – 50 Hz
Grid-Tie    Nominal power returned    To be defined by the bidder
Connection power requirement     To be defined by the bidder
Protection     Circuit breaker
Soft starter    Soft starter Includes Overload Relay and Phase Sequence Monitoring
Power meter    SIEMENS SENTRON PAC3200 which allows monitoring of voltage, current, active power, reactive power, apparent power, power factor (and more) on each phase or overall
Capacitor    Two sets of two capacitors to compensate reactive power consumed by the generator (Each set compensate half of the total reactive power)

11.3    Figurative description of the Model
An equivalent resemblance of the model is indicated in Figure 20 to figure 25.

Figure 20: Equivalent figurative description of the model
Figure 21: Equivalent figurative description for a) workstation, b) yaw system 
Figure 22: Equivalent figurative description for a) Drive train (low speed), b) Drive train (high speed),
Figure 23: Equivalent figurative description for a) Hydraulic unit, b) Weather sensors 
Figure 24: Equivalent figurative description for a) Electrical panel, b) computer
Figure 25: Equivalent figurative description for grid-tie connection