Schaffner Group
User and Installation Manual
Output filter FN5420 and RWK5420
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1.2 Dv/dt reactor designation
The filter designation is structured from the output filters characteristics.
Figure 2 Schaffner output filter reactor designation
|
The first part of the designation ‘
RWK5420
-xxx-yy-E_ _ _ _’ refer to the dv/dt reactors 6% from
Schaffner output filter products.
|
The second part of the designation ‘RWK5420-
xxx
-yy-E_ _ _ _’ indicates the current rating at
rated voltage and 50Hz (note that it can be rounded to 2 significant digits, please check the
exact value in datasheet and section 3.2 below).
|
The third part of the designation ‘RWK5420-xxx-
yy
-E_ _ _ _’ indicates the filter terminal type.
For more details, please consult the datasheet and section 3.2 below.
|
The fourth part of the designation ‘RWK5420-xxx-yy-E
_
_ _ _’ contains 4 slots, the first is the
IP degree of protection, second, the presence of active ventilation (fan), third the presence of
a power supply for the fan (if present) and the last one indicates the presence or not of a tem-
perature switch.
Note that only specific combinations exist, please refer to the selection tables for complete list.
1.2.1 Example of sine wave filter designations
RWK5420-90-99-E0XXT
: Output filter type dv/dt reactor for 50/60Hz, rated 90A at nominal voltage and
50Hz, with terminal type 99 (bus bar), rated IP00, without fan nor power supply and with temperature
switch.
1.3 Additional Resources
The Schaffner group does provide a number of additional resources available at schaffner.com to un-
derstand power quality in general and product in particular.
1.4 Naming convention
PWM
Pulse width modulation
fPWM
Frequency of the PWM (drive frequency)
