OSRAM HALOTRONIC-PROFESSIONAL HTL - Manual (Page 8)

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3.1 Electrical and photo- HALOTRONIC ® is designed for a 230 V or 230 – 240 V supply depending
metric data as a function on the model.
of mains voltage and The diagram on the left below shows the situation for a conventional
lamp wattage 00 VA transformer not suitable for partial load operation. When
operating a 20 W lamp for example, the high secondary voltage
(> 3.5 V) causes lamp life to be sharply reduced. This increase in the
operating voltage of the lamp of more than 0 % leads to a reduction
of about 60 % in the life of the lamp.
HALOTRONIC ® on the other hand operates lamps reliably over the
entire partial load range.
One advantage of partial load operation is that the failure of one lamp
in a multi-lamp luminaire will not lead to the premature failure of the
remaining lamps.
Fig. 5
3.2 Permissible mains For a 230 (240) V ac supply, the nominal supply voltage is 230 V
rms
voltage range (240 V
rms
). Overvoltages of up to 6 % are permissible. If the voltage is
more than 6 % higher correct operation cannot be guaranteed and
HALOTRONIC
® may be damaged beyond repair.
Every HALOTRONIC ® transformer is protected (to EN 6547 or IEC
6547) against transient mains overvoltages (these occur, for exa-
mple, when inductive loads such as fluorescent lamps operated with
conventional control gear are switched off).
e
3. Performance