led’s in runway•airfield ground lighting is a tough environment in which shocks, vibrations and...
TRANSCRIPT
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The application of
LED’s in runway
lighting systems
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• Airfield Ground Lighting is a tough environment in
which shocks, vibrations and great changes in
temperature (frost or intense heat from the sun and
surrounding tarmac).
• Currently the main provision for AGL is still in the
form of incandescent lamps using a filament.
• These suffer from a number of weaknesses, in
particular a relatively short average life as filaments
are burnt out after 1 000 to 2 000 hours.
• Other weakness of incandescent lights is their
"poor spectral emission”
Introduction
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• Service Life extended from 1 to 7 years!
• Reduced Power Consumption
• Low maintenance
• Lower Voltages to improve safety
• No Filters- LED’s create the required colour!
• Better Colour – narrow spectrum
• Low temperature operation
• Resistance to Vibration – Robust
LED Light Source
BENEFITS
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Advantages of LED
Average Lifespan
Operating Costs
Light Spectrum Characteristics
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Taxiway Edge
Elevated Fittings Inset Fittings Low Candela
Output
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Taxiway Guidance Signs
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Taxiway Centreline and Stop Bars
Higher Light Output
Wide Angle Coverage
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High Intensity
Inset Elevated
Runway Applications
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LED High Intensity RGL
• ICAO compliant High
Intensity > 3.000 cd
• Service Life without
lamp change > 5 years
9
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New LED Developments
10
Medium Intensity LED Lighting System
Portable LED Lighting System
Low Profile High Intensity Runway Airfield Lighting
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Airfield lighting system using LED lights
For Operations in Visual
Meteorological Conditions.
Targeting :
• General Aviation airports
• Private Airfields
• Jungle strips
• Military Forward Support Bases
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Features
Easy to install.
• Pug & Play
• No specialized skills required
• Limited civil works
One or Two circuit DCR Regulator
1,4 Amp DC Power Supply
3 Step Light Dimming &
Remote Control Option
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Benefits of
PEARL
low investment
cost
great photometrics
minimum maintenance
low power consumption
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Application Colour Peak Main Beam Secondary Beam
cd Horizontal Vertical Average cd Horizontal Vertical Average cd
Approach White 1500 -5°/+5° 1°/5° 1370 -10/+10° 0/8° 1100
Thresh. Uni Green 1300 -5°/+5° 1°/5° 1120 -10/+10° 0/8° 900
Threshold Green 650 -5°/+5° 1°/5° 550 -10/+10° 0/8° 450
R/W Edge White 1100 -5°/+5° 1°/5° 900 -10/+10° 0/8° 690
R/W End Red 350 -5°/+5° 1°/5° 300 -10/+10° 0/8° 250
R/W End Uni Red 2000 -5°/+5° 1°/5° 1500 -10/+10° 0/8° 900
T/W Edge Blue 36 360° 0°/45° 25 360° 45/90° 15
Light Intensities
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Two interleaved Circuits - Using Standard Components
FAA L-823 Factory moulded connectors.
Installation
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Installation
PEARL Light
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• 1.4 A DC Power Supply – One or Two 500 W
outputs
• Low output voltage below 400 Volts
• Brightness control in 3 steps
• Open Circuit Protection
• Over Current Protection
• Input Power 120/220 VAC 50/60 Hz
• EMI compatible
• Efficiency at full load higher than 90%
• Air Cooled
• Local/Remote selection switch
• LCD display for display of status information
• Optional Remote control by Radio Control L-
854 or multi-wire
DCR
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SOLAR VERSION
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Mounting Options
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Mobile Systems
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Versatility Low
maintenance & low cost
Ease of installation
Good Photometrics
Summary
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Portable Airfield Lighting System
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Features
Same Light Output as PEARL
Up to 20 hours light output
between charges.
Recharge in 8 hours.
Control options: Manual (Standard), photocell or radio.
Can withstand jet blast.
No lamp changes for life of light unit.
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Applications
The POLARIS is available in any aeronautical
colours for different applications:
• Runway Edge (White)
• Taxiway Edge (Blue)
• Approach (White)
• Runway End (Red)
• Threshold (Green)
• Temporary Taxiway Closure or Obstruction Lighting
(Red)
• TLOF Heliport Light (Green)
• FATO Heliport Light (White)
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Iris – LED Centre Line Fitting
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Active monitoring of actual light output to maintain a selected brilliancy
Optimised power consumption maximises life span of the fitting
< 6 mm profile with no negative slope
Total airfield uniformity
Eco friendly design
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Less than 6mm above grade
Less than
70mm deep
All this with no negative slope!
IRIS – Features
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Iris – Optical cartridge
Clear / Clear
Clear / Blank
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IRIS – Features
Self contained electronics package
Monitor - Presents an open circuit on the AGL power input when the light output falls to 50% or when more than 25% of the LEDs have failed
Manufactured with 80% recycled material
RoHS compliant
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Dynamic Light Output
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DLO - Features
• Removes any LED binning issues with supplier
• Protects the ability to supply spares in the future
• Manage temperature changes effect on the
operation of LED
• Manages LED’s degradation over time
• Monitored photometric performance
• Even illumination across the airfield
• Greater energy efficiency
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DLO - Features
• Uses efficient state-of-the-art microprocessor-based
switched-mode power supply technology which
results in efficient conversion of input power to light
output.
• Active power factor correction (>0.95) is employed so
that the ground transformer secondary load is
effectively purely resistive
• Figure shows the relationship of the A.C. supply
voltage (yellow trace) and current (blue trace)
• Open-circuit functionality is incorporated so that
fittings work with existing PLC systems
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Looking Inside:
Optical light
engine
Internal
electronics
LED array
Heat sink
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LED array
Optical light engine assembly
Optical
sensor
Configuration
& Calibration IC
Thermal
management
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IRIS – Power Consumption
• 15 Watts Runway
Centreline
• 5 Watts Taxiway
Centreline
• 3 Watts Stopbar
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• Switch
– Integrated ‘switch facility’. Available in Fail
ON and Fail OFF configurations
• SMARTswitch
– Integrated SMARTswitch / monitor with true
light output feedback and advanced
condition monitoring for Total Preventative
Maintenance (TPM)
• Arctic heater kit
– For operation in harsh environments.
Prevents ice formation on the lenses
• Asset Tag
– Integrated RFID tag for asset tagging
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Future Road Map
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The Micro 200
High Power Factor
Low Harmonics
Low running costs
Small Foot print
Fast response time
LED Technology
EN61822 Compliant
Optional extras
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Theory of Operation
About 1µS Reaction time to load changes
Continuous power to electronic loads
Lower Harmonic output
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6.60 Amps, 0.99 PF
Phase Angle Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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6.30 Amps, 0.95 PF Phase Angle Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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5.35 Amps, 0.80 PF Phase Angle Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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4.55 Amps, 0.68 PF Phase Angle Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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3.89 Amps, 0.58 PF Phase Angle Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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3.37 Amps, 0.50 PF Phase Angle Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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2.90 Amps, 0.44 PF Phase Angle Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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2.57 Amps, 0.38 PF Phase Angle Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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Sine wave CCR
Simulation
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6.60 Amps, 1.00 PF Sine wave Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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6.30 Amps, 1.00 PF Sine wave Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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5.35 Amps, 1.00 PF Sine wave Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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4.55 Amps, 1.00 PF Sine wave Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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3.89 Amps, 1.00 PF Sine wave Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
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3.37 Amps, 1.00 PF Sine wave Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
![Page 58: LED’s in runway•Airfield Ground Lighting is a tough environment in which shocks, vibrations and great changes in temperature (frost or intense heat from the sun and surrounding](https://reader036.vdocuments.net/reader036/viewer/2022071021/5fd559a0106e6950632012f8/html5/thumbnails/58.jpg)
2.90 Amps, 1.00 PF Sine wave Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
![Page 59: LED’s in runway•Airfield Ground Lighting is a tough environment in which shocks, vibrations and great changes in temperature (frost or intense heat from the sun and surrounding](https://reader036.vdocuments.net/reader036/viewer/2022071021/5fd559a0106e6950632012f8/html5/thumbnails/59.jpg)
2.57 Amps, 1.00 PF Sine wave Based CCR (6.6 Amps)
-10
-5
0
5
10
0 5 10 15 20
Time (mS)
Am
plitu
de
(A
mp
s)
Waveform
6
![Page 60: LED’s in runway•Airfield Ground Lighting is a tough environment in which shocks, vibrations and great changes in temperature (frost or intense heat from the sun and surrounding](https://reader036.vdocuments.net/reader036/viewer/2022071021/5fd559a0106e6950632012f8/html5/thumbnails/60.jpg)
Alternative Power Supply System
DCR
• 1.4 A DC Power Supply – One or Two 500 W outputs
• Low output voltage below 400 Volts
![Page 61: LED’s in runway•Airfield Ground Lighting is a tough environment in which shocks, vibrations and great changes in temperature (frost or intense heat from the sun and surrounding](https://reader036.vdocuments.net/reader036/viewer/2022071021/5fd559a0106e6950632012f8/html5/thumbnails/61.jpg)
Alternative Power Supply System
DCR
Currently:
3 installations running in
Canada since 2004
One installation in Italy
![Page 62: LED’s in runway•Airfield Ground Lighting is a tough environment in which shocks, vibrations and great changes in temperature (frost or intense heat from the sun and surrounding](https://reader036.vdocuments.net/reader036/viewer/2022071021/5fd559a0106e6950632012f8/html5/thumbnails/62.jpg)
LED’s Bringing a new light to an old industry
63
Any Questions ?