This issue is sponsored by the Philips Romania, Lighting Division

Annex 1
CCR
Figure 1A1 Serial powered circuits
Runway edge fixture: 30/45 W portable
(clear), include transformer, 50 pcs
Approach light fixtures: 100 w portable
(clear), 6 units
Taxiway light fixtures 30/45 W portable
(blue)
Papi: 2x200 W portable, 2 units
Light bulbs: 45 W, 100 W, 200 W halogen
Constant current regulator: 5 kW
Cable: 3000 V, 200 kG/1000 m
Annex 2
The Fourier coefficients of the UL( t) by
thyristor phase shift electronic switching
control (Figure 1A2) are:
Information
Figure 1A2 The wave forms for the AC thyristor phase shift chopper
U
a
b
c
L
n
n
n
(
t )
a
2
n
2U n
INGINERIA ILUMINATULUI 18-2006 55
b
1
2
n
a
n
sin( n
1 1
{ sin( n
n 1
1)
1
sin( n
n 1
1)
}
1 1
{ cos( n
n 1
1)
1
cos( n
n 1
1)
t )
1
1 }
b cos( n
n
t )