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Design-in Guide - Philips Xitanium LED Xtreme SR driver
Excessive high mains voltage
An excessive high mains voltage will stress the driver and have an
adverse effect on the lifetime. Xitanium LED Xtreme SR drivers
will survive an input overvoltage of 264 ... 320VAC for a period of
max. 48 hours and 320 ... 350VAC for a period of max. 2 hours.
A loose neutral condition has to be avoided as this may reduce the
lifetime dramatically. Immediate driver failure may occur if the driver
is connected to 400VAC as a result of a connection error in a 3-
phase 230/400VAC grid.
Power grids
Xitanium Xtreme LED SR drivers are suitable for direct
connection to TN, TT and IT grids. Depending on driver type, a
luminaire-based fuse in the driver neutral connection may be
required in case both feeding phases are "hot".
Note: certain restrictions apply for use in IT grids. Direct
connection of Xitanium LED Xtreme SR drivers is only permitted in
delta connection with a phase-to-phase voltage of 230VAC. In case
the drivers are connected in star connection in a 230V/400VAC IT
grid, the use of a separate 1:1 insulation transformer with sufficient
power rating is required to power the drivers. The secondary
output of the transformer must be connected to earth.
Power Factor (PF)
Xitanium Xtreme LED SR drivers have a high power factor
which is inherently capacitive. Its capacative nature cannot be
compensated for. The output power dependent PF graph can be
found in the driver datasheet.
DC emergency operation (DCemDim) and fusing
Depending on driver type, the driver may be certified acc.
IEC 61347-2-13 Part J for operation on a DC input voltage. As a
result, the
driver
enables
luminaires in compliance with IEC 60598-2-22 excluding high-risk
task areas. These drivers support operation both a flat DC
input voltage as well as operation on rectified sinewave "joker"
input voltage.
On Xitanium LED Xtreme SR drivers, the DC Emergency Dim
feature named DCemDim is available. This feature allows a pre-
defined dim level of the driver output to which the driver will switch
over automatically once connected to a DC input voltage.
The mains input of DC-rated drivers is not polarity-sensitive for DC
input voltage and the driver is fully CISPR15 EMC-compliant when
operated on a DC grid. Specific DC input voltage values can
be found in the driver datasheet.
Depending on driver type, EL marking may apply. For those drivers
the corresponding Emergency Output Factor EOFx range can be
found in the driver datasheet.
application
in
emergency
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