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ÉCLATRONIC ELECTRONIC CONTROL GEAR FOR LIGHTING
AN INTRODUCTION TO ELECTRONIC CONTROL GEAR FOR
P.O. BOX 1694
TEL: +27 11 868 2578
TEL: +27 11 868 3779
FAX: +27 11 868 2578
Comments, ideas and suggestions are always
welcome; should you have any, please contact the writer.
ÉCLAT OFFERS TO IT'S CUSTOMERS MANY OPTIONS WITH RESPECT TO ELECTRONIC
CONTROL GEAR FOR FLUORESCENT, HALOGEN AND HIGH INTENSITY DISCHARGE LAMPS.
NOTES ON LUMINAIRE FLUORESCENT LAMPS (AND PARTLY, HID LAMPS) ELECTRONIC CONTROL
QUALITY OF LIGHT: -
ballasts, like wound chokes, are current limiting devices. The use of
electronics allows more sophisticated control and enhanced quality of light,
additional features that would not be possible with wound chokes. Electronic
ballasts run fluorescent lamps at high frequency (40 – 100 kHz) which ensures
the lamp current is virtually constant, unlike wound chokes where the lamp
current is interrupted 100 times a second at 50 Hz. This obviously gives greater
visual comfort and ‘cathode flicker’ is eliminated, even at low temperatures.
addition the dangerous stroboscopic effect associated with rotating machinery is
eliminated. At start up there is no annoying flicker or noise and, if a lamp is
defective, it will be shut down automatically without causing any further and
frequency operation permits more energy to be converted into light. Between 7
and 11 % less power is required for the same light output, which would be
achieved, using an equivalent conventional wound choke.
Ballasts are much more efficient than wound chokes and, therefore, run cooler
not only reducing losses but lowering the temperature in the Luminaire, and
surroundings. This also allows for less loading of air conditioning systems. The
lamp is allowed to run nearer its optimum operating temperature of 25 °C. The
total savings are dependent on the individual lamp, but wound chokes use 30 %
more energy than the equivalent electronic ballast.
LAMP LIFE: -
the lamp is run under exactly the right conditions and a soft (warm) start is
used, practical experience has shown that lamp life increases from approximately
8000 hours to 12000 hours.
BALLASTS FOR FLUORESCENT LAMPS TECHNICAL FEATURES AND ADVANTAGES: -
for DC operation.
RFI and Electromagnetic Compatibility (EMC) performance.
switch off of defective lamps.
switch on after lamp replacement.
to international norms.
control of lamp power, independent of fluctuations on mains voltages.
Light output will remain constant between mains voltages of 198 – 264 V, or on
the 110V versions between 85 – 155 V.
starting of lamps within 0.95 seconds.
operating temperature range, - 15°C to + 70°C.
ballasts have a designed mean service life of 50,000 hours at a maximum ambient
temperature of 70°C. This is achieved by using only the highest quality
components and by conducting rigorous testing programmes.
maintain the reputation electronic ballasts have earned, 100 % of production has
a multistage testing programme, including a thermal function testing programme.
DIMMING LIGHTING CONTROL SYSTEMS: -
COMPONENTS FOR LIGHTING SOLUTIONS: -
makes it possible to produce a wide variety of Creative Lighting Solutions. With fully
Digital Control Gear such as Dimmers, Electronic Ballasts and Electronic Transformers, a
wide range of Lamps can be dimmed. By means of Precise Digital Control Devices,
and Sensors, individual and unique installations can be created. From
simple control with Rotary Potentiometers and Push to Make Switches, to the more complex
Controls, using Building Management Systems, such as EIB and AV Touch
PERFECT LIGHT QUALITY: -
receive about 80 % of all information via their eyes. Light gives us sight.
the better the light is suited to a particular situation, the more precisely
information can be gathered, the feeling and mood absorbed. With Dimming
different light sources can be Dimmed Digitally and therefore exactly. Dimming
satisfies the requirements of optimal lighting level and adjusts for individual
lighting needs. Dimmers, Dimming Systems, Electronic Ballasts and Electronic Transformers utilize
logarithmic dimming curves, that are set according to
the requirements of the human eye.
The human eye is very sensitive in the range
of 0 to 10 %, where irregular or sudden changes are uncomfortable. The unique
concept of utilizing the logarithmic curve, provides a comfortable change
between 0 and 100 %. Together with the Precise Control provided, the
Dimmers, Dimming Systems,
Electronic Dimmable Ballasts and Electronic
Transformers, have the Technological means to provide perfect lighting quality.
ENERGY SAVINGS: -
Dimming Systems, energy savings of up to 70 % are possible. Such high savings
come from both the economical operation of the lamp, and from linking
of electronic Dimmable Ballasts and Electronic Transformers
to Daylight Sensors and Presence Detectors.
the use of high grade components, Dimmer Modules, and the associated Controllers have a mean service life of
200,000 hours within the permissible temperature range, and a MTBF value of
400,000 hours. In addition, Lamp life will be positively influenced by the use of
Dimming Systems. Experience has shown that lamp life increases from
approximately 8000 hours to 15000 hours when compared to Conventional Control
tests show that through the use of optimized warm starting of the Lamp
(pre-heating of the cathodes) the switching frequency of the Lamp can be
increased dramatically, when compared with cold start.
The exact control of brightness and power means that operation in the Dimmed
Mode has a positive influence on Lamp life. The Dimming Systems and Associated
comprehensive built in safety features.