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SCOPE OF SUPPLY |
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This
equipment offers the latest TB engine variant with air-cooled first
stage turbine, up-rated 5400BHP power units, exhibiting very low
operational hours elapsed on the power train. The equipment is currently
undergoing refurbishment with the gas turbine nearing completion. |
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Lease and purchase
options available. |
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Currently being
overhauled and witness test available. |
The Nomad
5 is a complete, single-trailer power package, capable of generating up
to 3.8MW ISO. It can be moved easily and quickly by a standard road
tractor unit, transferred from one location to another as changing
circumstances dictate and made operational less than 48 hours after
arrival on site.
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Proven Reliability
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Dual Fuel Capability
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Black Station Start
Capability
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Generator 3.8Mw,
4875kVA ,50Hz, 11kv
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Robust Design
Operational in Extreme Climatic Conditions
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Acoustic Treatment
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On Board Control Room
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air-conditioned control room houses the turbine generator control and
protection systems, auxiliary and control batteries, system battery
charger, motor control centre and a selectable 415VAC distribution
board. Distribution board inputs provide the facility for external
customer supply, on board diesel generator supply for “Power Station
Black Start Capability” and auto transfer to auxiliary transformer
supply derived from on trailer alternator once the turbine driver is
running. |
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Diesel Compartment -
A 500
litre diesel fuel tank is integral to the trailer chassis Housing
Perkins Turbocharged Diesel engine driving hydraulic package for turbine
starting and auxiliary power generation to provide power to the on
trailer 415VAC distribution board.
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Turbine Compartment -
Housing a TB5400 Model Gas
Turbine prime mover, turbine fuel and fluid systems, control devices,
instrumentation, turbine lubrication oil tank, and Allen speed reduction
gearbox.
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Alternator Compartment -
Housing GEC-Unipac
Alternator rated at 4785kVA, Auxiliary transformer 11KV to 415VAC for
trailer internal power distribution.
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Cooler and Switchgear Compartment - Whipp & Bourne 11Kv Generator
circuit breaker, HV terminal chamber for connection to customer load,
turbine lubrication system air blast oil cooler and fire fighting
equipment. |
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Turbine Engine Core
Model
TB5400 twin shaft, heavy duty industrial gas turbine, complete with:
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Air inlet casing
phased vertically upwards
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Air inlet flexible
joint
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Gas generator
assembly
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Combustor assembly
incorporating 4 combustion chambers
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Power turbine
assembly
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Exhaust outlet
casing phased vertically upwards
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Exhaust outlet
flexible joint
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Picture: TB5400 Dual Fuel Gas Turbine
Driver Allen Reduction Gearbox 1500rpm |
Underbase
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Turbine Trailer
underbase of fabricated carbon steel construction, designed for
three-point mounting on installation support jacks
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Turbine mounting,
allowing thermal expansion towards the non-drive end
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Retractable
lifting tubes to facilitate heavy lift handling
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Lubricating oil and auxiliary
diesel fuel tanks to underbase
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Instrumentation
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Air inlet
temperature thermocouples
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Exhaust outlet and
power turbine exit temperature thermocouples
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Gas generator
speed probe
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Power turbine
speed probe
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Mechanical
over-speed protection trip
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Bearing mounted
vibration proximity probes for gas generator and power turbine with
casing mounted seismic sensor to gearbox and driven unit
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Lubricating Oil System
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Integral
lubricating oil system, including all pipework, serving the gas
turbine, gearbox and driven unit
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Lubricating oil
tank integral to trailer underbase
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Lube oil pressure
and temperature transmitters
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Main pump,
gearbox-driven
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Auxiliary pump, AC
electric motor driven (pre start and post shutdown lubrication)
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Emergency pump, DC
electric motor driven (emergency cooling)
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Lubricating oil
supply piping in stainless steel downstream of filters
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Duplex filters
with manual changeover valve; differential pressure gauge and
differential pressure transmitter
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Lubricating oil
pressure gauge and transmitter Oil tank temperature transmitter
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Oil tank level
gauge
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Oil tank low oil
level transmitter
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Lubricating Oil Cooler
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Air blast simplex
vertical matrix lubricating oil cooler, suitable for high ambient
temperature range.
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Lubricating Oil Breather
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Breather system
internal to Acoustic Enclosure (Including a carbon steel Sand Trap )
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Lube oil breather
piping external vent
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Stainless steel
flame trap for mounting in the external breather piping
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Starting System -
Diesel engine driven hydraulic start system
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Ignition System
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High tension
igniters (4)
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Fully piped
ignition system utilising propane gas fuel supply
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Gas Fuel System
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Gas fuel piping in
stainless steel
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Gas fuel pressure
gauges for fuel valve and burners
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Gas fuel pressure
relief valve
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Gas fuel pressure
transmitter
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Gas fuel shutoff
valve, emergency, rapid acting
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Gas fuel shutoff
valve, manually operated
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Gas Fuel Valve
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Off Package Gas Fuel System
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Gas fuel block and
vent valve assembly (installation by others)
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Liquid Fuel System
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Liquid fuel piping
in stainless steel
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On trailer Duplex
fuel filter permitting on line duty filter replacement
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AC motor driven
liquid fuel boost pump, gearbox driven main fuel pump
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Governor-actuated
fuel valve
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Solenoid-operated
fuel shut-off valve
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Manual emergency
shut-off valve
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Burner pressure
gauge
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Gas ignition
system
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Combustion chamber
auto-drain valves
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Combustion Air Inlet System
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Standard 2 stage
Combustion Air Inlet Filter with particle extraction louver integral
to trailer housing
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Optional
multistage off trailer Combustion Air Inlet Filter semi permanent
installation (optional)
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Combustion Air
Inlet Silencer for an overall 85dBA rating (optional)
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Combustion Exhaust System
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Exhaust silencer
for an overall 85 dB(A) rating (optional for semi permanent
installation)
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Combustion Exhaust
Ducting Stack to elevation of approx. 6m above ground level
(optional for semi permanent installation)
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Gearbox and Coupling
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Direct coupled
Epycyclic type gearbox of Allen Gear manufacture giving an output
shaft speed of 1500 rpm
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Low maintenance
Turbo-flex dry diaphragm output coupling between gearbox and AC
generator
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Control System
The
control system incorporates the following functions:
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Turbine Sequencing
and Protection
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Fault Monitoring
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Annunciation
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Gas Turbine Speed
Control
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Temperature
Monitoring
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Turbine Vibration
Monitoring
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Turbine Gearbox
Vibration Monitoring
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Driven Unit
Vibration Monitoring
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Driven Unit
Bearing Temperature Monitoring
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Interlocking
Control for standard Fire Protection and Gas Detection Monitor
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English language
on front panels
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Control Power
Supply
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24V DC and
220/240V AC supply for controls from battery system
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AC Generator
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Brushless AC
generator, voltage 11kv and frequency to50Hz, to sound attenuation
of 85dba
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Generator cooling
type CACA
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Generator bearing
temperature detectors
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Class F insulation
/ F total temperatures
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AC generator lube
oil system provided by the gas turbine
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Underbase of
fabricated steel construction
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Generator
alignment jacking screws
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The generator is suitable for
non-hazardous area
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Generator Control Panel
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Automatic voltage
regulator
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Generator metering
equipment
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Generator
electrical protection relays
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Automatic and
manual synchronising facility with check synch
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Neutral Earth
Resistor
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Electrical Equipment
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On-package AC and
DC interface cabling
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Integral earth
protection bonding
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Emergency 'Stop'
push-buttons externally mounted on turbine underbase
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Local stop
push-buttons on turbine AC motors
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Batteries
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Nickel-Cadmium
batteries are mounted within a carbon steel battery storage cabinet
located externally adjacent to control room
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Battery Charger
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A simple Erskine
battery charger / static inverter is supplied, incorporating a
DC-controller to control the turbine DC supply
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Acoustic Enclosure
Fitted over the turbine, gearbox and
alternator and bolted to turbine underbase, for average sound
attenuation to 85dB(A) SPL at 1m distance measured at 1.2m above ground
level incorporating:
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Internal lighting
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Painted carbon
steel construction
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Access Doors
provide for personnel maintenance access
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Removable panels
for maintenance access
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Acoustic enclosure
ventilation inlet damper
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Acoustic enclosure
ventilation outlet damper
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Acoustic enclosure
ventilation air flow detector
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Acoustic Enclosure
Ventilation System
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Ventilation Fan
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AC electric motor
driven ventilation outlet fan to Zone 1 classification, duct mounted
(Ex d type). Suitable for ambient temperatures of up to 650C.
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Ventilation Filter
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High efficiency
cleanable pad type combustion air filter.
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Fire Protection and Gas Detection
System
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2 - ultra-violet
flame detectors
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1 - heat detector
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3 - gas detectors
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Twin shot CO2 fire
protection system
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Audible and
visible alarms
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Enclosed
rack-mounted CO2 bottles
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Turbine Compressor Cleaning System
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Cold turbine
compressor wash system
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Mobile wash
trolley, incorporating cleaning fluid/rinse tank fitted with
integral pressure relief valve, air pressure control solenoid valve,
air/ wash fluid flexible hose with quick release connections, and
electrical cable
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Drain system
incorporating automatic drain valve
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Pressure transmitter to monitor intermediate stage blow-off valves
closing air pressure
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Note – (I) All particulars are set out as a general outline only for
the guidance of intending purchasers and do not constitute part of an
offer or contract. (ii) All descriptions, dimensions, references to
condition and other details including age and hours run are given in
good faith and are believed to be correct but any intending purchaser
should not rely on them as statements or representations of fact but
must satisfy themselves by inspection or otherwise as to the correctness
of each of them.
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