AGLPlus 1 : Introduction to
Airfield Ground Lighting
AP1 – Module 13bis: CCR
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 1
13-04-22
Airport Ground Lighting AGL+1
Module 13bis
Constant Current Regulators
&
Associated Equipments
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 2
13-04-22
The ADB MCR³ is a microprocessor controlled Constant Current Regulator specially
designed for the supply of airport lighting series loops at various intensity levels.
Secondary circuits
Isolating Transformers
I
VTOTAL
V2
V1
Primary circuit
VTOT   V1  V2  ...Vn
For internal use only
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Training Department/ AGP1- 13b - page 3
13-04-22
STANDARD COMPLIANCY & REF. DOCUMENTS
Therefore the MCR³ has to be/is fully compliant with following standards:
•
•
•
•
•
ICAO: Areodrome Design Manual, Part 5, par. 3.2.1.4,5 & 6
FAA: AC 150/5345-10E & L829
IEC: IEC 61820
ADB ref. Documents: Installation Manual & Maintenance Manual
ADB: Installation & Maintenance Manual
For internal use only
Copyright © ADB 2009.
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Training Department/ AGP1- 13b - page 4
13-04-22
FACTS - FEATURES
MAIN FEATURES
•
•
•
•
•
•
•
•
Several PCB’s mounted separately in stead of 1
control module
Control / parametering possible through LCD backlit
display and pushbuttons (UI)
Remote control is adaptable to customer needs
J-bus & MW in same CCR for combined remote
control
CCR & CSM in same housing
Distributed DC-supply
Local Bus communication
2 types of Housing depending on the size
For internal use only
Copyright © ADB 2009.
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Training Department/ AGP1- 13b - page 5
13-04-22
FACTS - FEATURES
MAIN FEATURES
•
•
•
•
•
•
•
•
Working principle: series thyristors controlled by μprocessor to obtain constant current
Transformer principle to create high voltage and
maintain constant current
Remote control principle (J-bus, MW)
Integrated HMI (Human Machine Interface)
BASIC configuration through HMI
Windows © compatible PC software
Improved dynamic current regulation
start-up = 0.5 sec max
For internal use only
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Training Department/ AGP1- 13b - page 6
13-04-22
SPECIFICATIONS
SMALL HOUSING
•
•
•
•
•
•
Power range 2,5/ 5 /7,5/ 10/ 12,5 kVA
Input voltage ( single/bi-phase)
220/230/240/380/400 VAC (+/- 15%)
50/60Hz
Output Current 6,6A
Dimensions 400 x 600 x 930
Options:
o selector (+ 500)
o cut-out
o wheels (+ 100)
For internal use only
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Training Department/ AGP1- 13b - page 7
13-04-22
SPECIFICATIONS
BIG HOUSING
•
•
•
•
•
•
Power range 15/ 20 / 25/ 30 kVA
Input voltage ( single/bi-phase)
220/230/240/380/400 VAC (+/-15%)
50/60Hz
Output Current 6,6A
Dimensions 600 x 600 x 1260 (mm)
Options:
o selector (+ 500)
o cut-out
o wheels (+ 100)
For internal use only
Copyright © ADB 2009.
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RAS-AGLP4-NDIA-ST1-Mod6 / Technical Support /ADB Belgium - 8
25 June 2012
SPECIFICATIONS
Small cabinet + CSM+ wheels
Big Cabinet + SCO + wheels
For internal use only
Copyright © ADB 2009.
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RAS-AGLP4-NDIA-ST1-Mod6 / Technical Support /ADB Belgium - 9
25 June 2012
SPECIFICATIONS
Ambient conditions
All regulators are air-cooled without fans. Thus, all regulators must have a
good airflow, especially if they operate near the maximum temperature.
•
•
•
Temperature : From -20 up to +55 °C
Altitude : From 0 (sea level) up to 1000 meter
Relative humidity : From 10 % up to 95 % RH without condensation
For internal use only
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Training Department/ AGP1- 13b - page 10
13-04-22
OPERATING PRINCIPLES
The regulator is a microprocessor-controlled constant current regulator. The
regulator supplies power to airport visual aid series circuits at different
intensity levels.
For internal use only
Copyright © ADB 2009.
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Training Department/ AGP1- 13b - page 11
13-04-22
OPERATING PRINCIPLES
For internal use only
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Training Department/ AGP1- 13b - page 12
13-04-22
OPERATING PRINCIPLES
The current regulator holds the output current constant by varying the output voltage to
the series circuit. The voltage can be adapted by changing the conduction angle of the
thyristors in both the positive and the negative difference of the input signal.
- The TBM module fires the thyristors at the request of the CCL module.
- The TBM module receives a signal from the remote control system.
- The TMB module gives an output to a certain current level.
- The CCL compares the requested step & actual output current level.
- The CCL computes and sends the TBM a request to generate the required output
voltage.
This process will be maintained until no output is anymore demanded or if any of the
safety features are triggered. The regulator stops immediately when triggered by a safety
feature. The safety can only be reset at the TBM module.
For internal use only
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Training Department/ AGP1- 13b - page 13
13-04-22
OPERATING PRINCIPLES – THE THYRISTOR
+
gate
A thyristor with forward polarity will
conduct a current, the moment a small
voltage is applied to the gate.
Thyristor
Vgate
I
Short Pulse
T
Thyristor blocked
With reverse polarity it will act as a
diode and will not conduct, even with a
voltage applied to the gate.
The thyristor only requires a small
voltage pulse at the gate and then it is
thrust into saturation. It will continue to
pass a current while the biasing is in the
forward direction, even though the
applied pulse has stopped.
T
For internal use only
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Training Department/ AGP1- 13b - page 14
13-04-22
OPERATING PRINCIPLES – THE THYRISTOR
V in
Fig. a)
V OUT
Fig. b)
V in
V in
Fig a) The thyristor can be used
to chop an AC signal, but only
passes current in the forward
direction.
V OUT
Fig b) The thyristor only passes
current in the reverse direction.
Fig. c)
Fig c) If the thyristors are
connected in parallel then
current will pass in both
directions.
For internal use only
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Training Department/ AGP1- 13b - page 15
13-04-22
OPERATING PRINCIPLES – THE THYRISTOR
For Parallel circuit
Vin
t
D
D
D
The RMS voltage level of the
wave can be controlled using
the thyristors to chop the wave
form.
D
Vgate
t
Vout
The longer the thyristor circuit
is conducting each cycle (time
D), the higher the output RMS
voltage.
t
For internal use only
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Training Department/ AGP1- 13b - page 16
13-04-22
OPERATING PRINCIPLES
BLOC K DIAGRAM OF A REGULATOR
CONBTROLLED BY SERIAL THYRISTORS
7/8
V prim
6/8
V sec
4/8
2/8
I sec
TI
I prim.
Tower (remote)
Setpoint
Local
For internal use only
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Training Department/ AGP1- 13b - page 17
13-04-22
OPERATING PRINCIPLES
For internal use only
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Training Department/ AGP1- 13b - page 18
13-04-22
CONSTANCY OF CURRENT
Secondary power
Psec = V sec * I sec
Primary power
Transformer ratio
Pprim = V prim * I prim
n = Vsec / V prim
Due to the high efficiency off CCR (95 %) and with restive load
load
P =P
sec
prim
V sec * I sec = V prim * I prim
n* V prim * I sec = V prim * I prim
I prim = n * I sec
And this is independent of the load....
For internal use only
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Training Department/ AGP1- 13b - page 19
13-04-22
BASIC PRINCIPLES OF A CCR
CURRENT CONTROL AND OVERLOAD
V
I6.6 A 
Z
1
1
V
I6.6 A 
Z
2
2
V
2
1/2 LOAD
t
2
V
2
2
Vo V
I 6.6 A 
Zo
FULL
LOAD
t
OVERLOAD
t
Assume max 6.6 A in
secondary
As load increases from half to
full then feedback will trigger
thyristors earlier in the cycle and
so increase the voltage by factor
of 2 in order to keep the current
constant in the secondary.
If the load increases after fullload then the voltage cannot be
increased further and the current
will start to fall. A constant current
cannot be achieved and the
system is in overload.
For internal use only
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Training Department/ AGP1- 13b - page 20
13-04-22
COMPONENTS
OUTSIDE REGULATOR HOUSING
For internal use only
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Training Department/ AGP1- 13b - page 21
13-04-22
COMPONENTS
THE CCR consists mainly of two major parts:
•
High Voltage part, which includes:
 The Output transformer
 A fused input switch
 The measurements transformers
 The lighting arrestors
•
Low Voltage part, which includes:
 The power module with
o the thyristor pack,
o the input supply terminals
o Contactors
o Transformers, etc
 The control modules
 The EFD pcb
 Accessories for the LFD
For internal use only
Copyright © ADB 2009.
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Training Department/ AGP1- 13b - page 22
13-04-22
COMPONENTS
INSIDE REGULATOR HOUSING
For internal use only
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Training Department/ AGP1- 13b - page 23
13-04-22
COMPONENTS
INSIDE REGULATOR HOUSING
For internal use only
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Training Department/ AGP1- 13b - page 24
13-04-22
COMPONENTS
INSIDE REGULATOR HOUSING
For internal use only
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Training Department/ AGP1- 13b - page 25
13-04-22
COMPONENTS
INSIDE REGULATOR HOUSING LOW VOLTAGE
For internal use only
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Training Department/ AGP1- 13b - page 26
13-04-22
COMPONENTS
INSIDE REGULATOR HOUSING LOW VOLTAGE
For internal use only
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Training Department/ AGP1- 13b - page 27
13-04-22
COMPONENTS
INSIDE REGULATOR HOUSING LOW VOLTAGE
For internal use only
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Training Department/ AGP1- 13b - page 28
13-04-22
COMPONENTS
INSIDE REGULATOR HOUSING HIGH VOLTAGE
For internal use only
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Training Department/ AGP1- 13b - page 29
13-04-22
COMPONENTS
LMC – PCB 1513
 Local Master Controller
 MASTER of the Local Bus
communication
 Interface to MW, J-BUS for control &
to laptop for SW configuration
For internal use only
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Training Department/ AGP1- 13b - page 30
13-04-22
COMPONENTS
TBM – PCB 1517
 Thyristor Block Module
 Produces the tyristor gate firing
signals to obtain demanded
conduction angle
 Over-current protection/ Assymetric
output voltage monitoring
 Monitors input of Power transformer
For internal use only
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Training Department/ AGP1- 13b - page 31
13-04-22
COMPONENTS
CCL – PCB 1516
 Current Control Logic
 Requested & obtained current are
compared & eventually adjusted by
other conduction angle request to
TBM
 Compute values from received
measurements.
 Control contactor through PSL on
startup
 & switch off , in case of OVC or
OVL.
For internal use only
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Training Department/ AGP1- 13b - page 32
13-04-22
COMPONENTS
UI – PCB 1507
 User interface
 LOCAL control of CCR & change
parameters
 Indication of status (Vout, Vin, In , Iout,
local/remote, EFD ,LFD)
For internal use only
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Training Department/ AGP1- 13b - page 33
13-04-22
COMPONENTS
MW – PCB 1486
 Multiwire interface board (2 for CCR
control, 1 for CSM)
 24 or 48 VDC external or internal
supplied
 8 Inputs / 8 outputs
 Value of I/O’s are set by default or
configurable from SW
For internal use only
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Training Department/ AGP1- 13b - page 34
13-04-22
COMPONENTS
JBUS – PCB 1502
 J-bus interface module
 Dual or single, 2-wire or 4- wire
connection
 J-bus type defined by factory SW
configuration
For internal use only
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Training Department/ AGP1- 13b - page 35
13-04-22
COMPONENTS
LFD – PCB 1519 (optional)
 Lamp fault detection
 Monitoring of Vout, Iout, Pout
 Optional
 -2 alarm levels possible/ LFD for CSM
possible
For internal use only
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Training Department/ AGP1- 13b - page 36
13-04-22
COMPONENTS
EFD – PCB 1514 & 1515 (optional)
 Earth fault detection
 Measurement of isolation resistance
 2 alarm levels can be set
 Range from 10 kOhm – 250 MOhm
For internal use only
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Training Department/ AGP1- 13b - page 37
13-04-22
BRIGHTNESS STEPS 6.6 A OUTPUT CCR
(in accordance with FAA specifications)
Imax (A)
Imin (A)
Brightness step
S1
S2
S3
S4
S5
S6
S7
S8
6.6
1.8
Nr of steps
3
4.8
5.5
6.6
“
“
“
“
“
4
3.3
4.4
5.5
6.6
“
“
“
“
5
2.8
3.4
4.1
5.2
6.6
“
“
“
6
2.7
3.4
3.9
4.5
5.4
6.6
“
“
7
2.2
2.8
3.4
4.1
5.2
6.4
6.6
“
8
2.8
3.1
3.4
3.9
4.6
5.5
6.4
6.6
For internal use only
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Training Department/ AGP1- 13b - page 38
13-04-22
MCR OUTPUT CIRCUIT VALUES
Rated
Output Max.
powers current RMS
(A)
output
voltage
2.5 kVA
4 kVA
5 kVA
7,5 kVA
10 kVA
12.5 kVA
15 kVA
20kVA
25kVA
30kVA
25kVA
30kVA
6,6
6,6
6,6
6,6
6,6
6,6
6,6
6,6
6,6
6,6
20
20
378
606
757
1136
1515
1894
2272
3030
3788
4545
1250
1500
Dielectric test
on output
circuit - V (1)
Max. open Max. open circuit
circuit
peak voltage (3)
RMS
output
volt.(2)
1895
3030
3790
5680
7575
9470
11360
15150
18940
22730
6250
7500
530
850
1060
1590
2120
2650
3180
4240
5300
6360
1750
2100
750
1200
1500
2250
3000
3740
4490
5990
7490
8990
2470
2970
1. 50 Hz- RMS voltage during 1 min
2. Under worst condition, considered 1.4 times max RMS output volt.
For internal use only
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Training Department/ AGP1- 13b - page 39
13-04-22
OPERATING CHARACTERISTICS
Current Regulation limitations
Current regulation is guaranteed under the following conditions (±1.5 %):
 A minimum of 30 % of lamp transformers with an open circuit in their
secondary side. This is for a range from half-load to full-load.
 For nominal input voltage:
 - IEC: ± 10 %
 - FAA: + 10 % / -5 %
 Operation from -5 % to -15 % (FAA) or from -10 % to -15 % (IEC) of nominal
input voltage with full load can cause output current to be too low at the
maximum brightness step.
 Operation at +15 % of the nominal input voltage is restricted to a maximum
period of 1 hour. This helps to prevent that components become overheated
or overstressed.
For internal use only
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Training Department/ AGP1- 13b - page 40
13-04-22
OPERATING CHARACTERISTICS
Features :
 Incorporates an open-circuit device which quickly locks out the primary
voltage and requires resetting of the regulator
 Allows intensity settings to be changed without de-energising the regulator
 Incorporates a security device that sets the regulator out of service or
assures a reduction of the current in case of an over current
 Indicate a ground fault while permitting the circuit to operate normally when a
single fault prevails
For internal use only
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Training Department/ AGP1- 13b - page 41
13-04-22
POWER FACTOR AND EFFICIENCY
•
Efficiency :
At nominal input power, nominal resistive load and maximum brightness:
Power up to 10 KVA: 90% and Power above 10 KVA: 95%
•
Power Factor :
At nominal input voltage and resistive load and max. brightness: 90 to 92%.
•
Taps:
By means of output taps on the secondary (high voltage) side of the power
transformer (PT) the power factor can be optimised versus the actual load at
full brightness.
The following taps are provided. 8/8 6/8 4/8 2/8
Benefits:
 The power factor will be optimised
 The main input current will decrease
 The harmonic content in the main input current and in the output current
will decrease.
 The maximum output voltage in case of open-circuit will be lower.
For internal use only
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Training Department/ AGP1- 13b - page 42
13-04-22
FINDING CIRCUIT LOADS AND SELECTING REGULATORS
1.
Take for example a circuit using 45 Watt fittings. Then look at each individual
isolating transformer and fitting.
So from drawing below : value of lamp 1 = 45 W
2.
Length ( l ) from transformer to fitting = 30 m
If the section of wire used = 4mm²
Resistance R in secondary circuit is
1
R sec  2   
  18  10-3  mm m
2
where resistivity
Therefore
Secondary circuit
R sec  0.27 
Losses in sec. cable = I²R= 6.6² x 0.27 = 11.76W
l
s
2
L
3
Isolating Transformer
4
3.
Total Power at secondary = sum of 1 & 2 = 56.76W
Primary
circuit
For internal use only
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Training Department/ AGP1- 13b - page 43
13-04-22
FINDING CIRCUIT LOADS AND SELECTING REGULATORS
4.
Power at primary side = power at secondary x 1.25 = 56.76 x 1.25 =
73.79 W
( 1.25 represents the isolating transformer characteristics ie. efficiency
coefficient )
5.
If we take a series circuit containing 100 isolating transformers then:
Total power of transformers = 73.79 x 100 = 7379 W
6.
If the total length of the primary circuit is 8000 m, and the section of
cable is 6mm² then the losses in this primary circuit will be :
I²R = 6.6² x 24 = 1045 W where
R prim    l
s  24 
7. Total load on Regulator = sum of 5 + 6 = 8424 W
For internal use only
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Training Department/ AGP1- 13b - page 44
13-04-22
FINDING CIRCUIT LOADS AND SELECTING REGULATORS
Therefore REMEMBER :
A benchmark when choosing a regulator is to select a KVA rating
which is somewhat greater than calculated so that 80% of this power
rating is >= calculated load
Look at the table of power ratings. If a 12.5 KVA regulator is chosen,
then 80% of this value = 10000 VA and this is > the calculated load
8424 W, therefore O.K
For internal use only
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Training Department/ AGP1- 13b - page 45
13-04-22
MONITORING FUNCTIONS OF THE MCR
Over current
time
Often a problem in the thyristor block
MCR creates an alarm and switches off
when output current is higher than one of two
preset levels.
1st Level
4s
Switches off, if current exceeds value >4% 0.4 s
and <8% for duration 4 secs or current
exceeds 8% for >0.4secs
2nd Level
4%
>8%
Over
current
Open Circuit
Pulse stopped to thyristor and current falls within 20ms
Main contactor open
Locked position - must do a reset of the system
For internal use only
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Training Department/ AGP1- 13b - page 46
13-04-22
MONITORING FUNCTIONS OF THE MCR
Mains Supply Voltage Monitoring
V
t
t
If mains supply voltage decreases then must
increase thyristor triggering time t to keep output
voltage and current constant.
The time t can only be increased as far as t
max. If the supply fall below a user adjustable
level i.e 80% - then regulator will stop.
V
t
Regulator will start again automatically if supply
voltage increases again to 85-90%
tmax
For internal use only
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Training Department/ AGP1- 13b - page 47
13-04-22
MONITORING FUNCTIONS OF THE MCR
Capacitive Output Current Monitoring
Capacitance
Open circuit
V

Voltage rises as current falls
Primary circuit
A break in the series loop will normally cause the MCR to shut down on an open-circuit fault
As the current falls below a minimum value. In long screened cables large capacitances
can build up. The discharge of this capacitance to earth when there is a break in the cable
could cause the output current to be greater than 1.8 Amps and so inhibit the open-circuit
shut-down. The MCR monitors this situation, creates an alarm and switches off.
For internal use only
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Training Department/ AGP1- 13b - page 48
13-04-22
MONITORING FUNCTIONS OF THE MCR
Measuring for Asymmetry - Thyristor problem
V
t-
Control module monitors conduction angle of both
thyristors. If t+ does not equal t- then will get a DC
component in transformer. If difference >10% for duration
100secs then MCR off.
t
t+
Monitoring of Overload
2 types of warning
If installed load > nominal load then the regulator cannot
supply a current at maximum rated 6.6A. If keep adding
lamps above max for circuit, the current will diminish. MCR
does not switch off but warning light blinks.
Select: switch off if
overload option
For internal use only
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Training Department/ AGP1- 13b - page 49
13-04-22
MONITORING FUNCTIONS OF THE MCR
Monitoring Output surge Limitation
Thyristor will switch OFF if output current
reaches a value greater than twice the maximum
peak value in normal operation.
Thyristors remain in the OFF state for a period in
which the firing angle goes smoothly from zero
back to the normal value.
Film cut-out
MCR
VTOTAL
A
Normal
Peak
Value
t
If the load suddenly short circuits such as in the
case of a lamp cut-out then the output current will
instantaneously rise. Usually the MCR monitors
the RMS current which in this case would take
longer to calculate and change than measuring the
peak output. ie. a faster response to a sudden
current change.
For internal use only
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Training Department/ AGP1- 13b - page 50
13-04-22
SET-UP FOR EARTH FAULT DETECTOR ( EFD )
Maximum insulation leakage currrent based on the following: ICAO part 5 §3.9.4.7
Allow
2 μA
for each series transformer
Allow
1 A
for each 100 metres of cable (this value includes for the normal
number of connectors and splices )
Take for example a Runway centre-line circuit containing 133 light fixtures
Maximum allowable leakage for transformers  2  133  266  A
If length of the circuit is 10 KM then max.leakage for cable
 10 000
100
 100 A
Total allowable leakage for circuit  366  A
For internal use only
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Training Department/ AGP1- 13b - page 51
13-04-22
SET-UP FOR EARTH FAULT DETECTOR ( EFD )
If testing with 5000 V then the resistance R must be

5000
 13.7 MΩ
366
The recommended alarm levels are:
level 1= 2 X calculated value = 27.4 megohms
level 2 =0.5 X calculated value = 6.8 mega ohms
If the calculated value = 150 mega ohms then do not multiply by 2 for the level 1
alarm
For internal use only
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Training Department/ AGP1- 13b - page 52
13-04-22
SET-UP FOR EARTH FAULT DETECTOR ( EFD )
Set-up delay :
Because of the unknown capacity of the series circuit and the small current
delivered by the 500V supply, it can take time to pull the circuit to the 500 V
level. During this user determined time the EFD is inhibited.
For a long circuit use a time of 60 to 120 seconds.
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 53
13-04-22
SET-UP FOR LAMP FAULT DETECTOR ( LFD )
Important ! Calibration of the LFD must be carried out after the tap selection
procedure and after any change made to the circuit
Warm-up time Any change in the resistance affects the output voltage.
Therefore on a long circuit there is a need to wait at least 30 seconds before
doing the calibration. This warm-up time can be changed in the software.
Affects of Capacitance and Inductance on the working of LFD
•Normally a series circuit without any burned out lamps can be approximated to
a pure resistance. The affect of too much capacitance and inductance in the
circuit can mean that the LFD module is unable to calculate the no. of burned out
lamps.
•The LFD option is NOT available on the following types of circuits :
•PVO’s (guidance signs)
•Circuits with AGLAS modules
•Circuits with saturated transformers
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 54
13-04-22
SCO CUT-OUT
As an option, the regulator MCR can be delivered with a cutout SCO mounted onto the
bottom part of the rear panel.
The purpose is to isolate safely the series circuit from the CCR during maintenance or
testing operations. It also allows periodical isolation resistance measurement series
circuit to ground without disconnecting the series cable.
Cutout
Type SCO
Cover
Body
Grounding terminals
Iso. measurement
Serie cables and
Grounding
Locking key
Fasting holes
Microswicth
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 55
13-04-22
SCO CUT-OUT
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 56
13-04-22
CIRCUIT SELECTOR
SELECTOR LOW RANGE
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 57
13-04-22
CIRCUIT SELECTOR
SELECTOR HIGH RANGE
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 58
13-04-22
CIRCUIT SELECTOR - APPLICATIONS
Simultaneous supply of several taxiway tracks
Alternate supply of PAPI systems
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 59
13-04-22
CIRCUIT SELECTOR – SIMULTANEOUS SUPPLY
Simultaneous supply of several taxiway tracks
FT
D
FT
S
2
FTC
2
2
1
Taxiway track 1: Centreline lights
MCR
FTS
FTS
2
2
1
1
CSM
Taxiway track 2: Stop
bars
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 60
13-04-22
CIRCUIT SELECTOR – ALTERNATE SUPPLY
Alternate supply of PAPI systems
2
2
2
2
1
PAPI Runway end 12
MCR
2
2
2
2
1
CSM
PAPI Runway end 30
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 61
13-04-22
TAP SELECTION
Tap Selection
Target : Adaptation of the regulator to the installed load by using the right tap combination.
The three methods possible are:
1 Measurement of the output voltage directly on the output terminals High Voltage!
2 Measurement of the primary voltage on the output transformer
3 Use of the MCR parameterisation
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 62
13-04-22
TAP SELECTION
Example for a 5KVA CCR
PARAMETER
UNITS
TAP 8/8 TAP 4/8
Thyristor conduction angle
Deg
85
124
Mains Voltage
Vrms
398
401
Mains Current
Irms
14.6
7.42
Output Voltage
Vrms
326
312
Output Current
Irms
6.6
6.6
Mains power
W
2605
2379
Mains power
VA
5831
2979
Output Power
W
2203
2096
Output Power
VA
2450
2060
0.45
0.79
84.5
88.1
Power Factor (input)
Efficiency
%
Table shows results
taken from a practical
trial using a 5 KVA MCR.
Tap selection was
undertaken using the 3
methods outlined in the
previous slide
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 63
13-04-22
TAP SELECTION
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 64
13-04-22
TAP SELECTION
Practical example for a 7,5 kVA CCR
This example shows how to select and wire a tap for a 7.5 kVA regulator with a supply
voltage of 380 A. The measured voltage reading on the terminals of fuse holder F3 is 210 V.
1. Find the correct tap selection table for a
7.5 kVA regulator. In this case, table 4
below.
2. Find in the table the voltage reading that
you measured on the terminals of fuse
holder F3. In this case, find the measured
voltage 210 V under the supply voltage
column 380 A.
3. Find the correct tap setting on the line that
matches the measured voltage. In this
case, the measured voltage was 210 V, so
the correct tap setting is 6/8.
For internal use only
Copyright © ADB 2009.
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Training Department/ AGP1- 13b - page 65
13-04-22
TAP SELECTION
Practical example for a 7,5 kVA CCR
3. Find the correct tap setting on the line that matches the measured voltage. In this
case, the measured voltage was 210 V, so the correct tap setting is 6/8.
4. Find the wire diagram for tap 6/8
5. Wire the taps according to tap 6/8.
For internal use only
Copyright © ADB 2009.
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Training Department/ AGP1- 13b - page 66
13-04-22
PC CONFIGURATION TOOL
 Optional configuration/ maintenance tool
 SW runs on windows XP through serial port of PC
 Demands power from the regulator
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 67
13-04-22
PC CONFIGURATION TOOL
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 68
13-04-22
DOCUMENTATION
 Installation Manual
 Maintenance Manual
 Drawings
 User Interface Flowchart
 Configuration Software
 MCR³ Database
 ADB Zaventem Technical Support: customerservice@adb-air.com
For internal use only
Copyright © ADB 2009.
All rights reserved.
Training Department/ AGP1- 13b - page 69
13-04-22