Fagor DDS Series Hardware Manual page 184

  Auxiliary modules
4.2 Chokes
4.
200
DDS
HARDWARE
Ref.1912
· 184 ·
The chokes (inductances or coils) are used with regenerative power
supplies (XPS-25 and XPS-65) and regenerative regulated power supplies
(RPS-80, RPS-75, RPS-45 and RPS-20).
When returning power to mains, the impedance of mains for the outgoing
currents is very low. Hence, the up ramps of this current must be limited with
a choke.
These three-phase chokes for XPS and RPS power supplies must be
connected to the power line input.
On the XPS power supplies, the choke must be connected to power
terminals CH1 and CH2 located at the bottom of the module.
RPS power supplies do not have connection terminals at the bottom of the
module like at XPS power supplies; therefore, it must be connected to the
power line between the MAIN FILTER and the RPS power supply itself. See
diagrams in the corresponding chapter of this manual.
The internal switching mechanism of these power supplies generates a
regenerative current to mains already filtered by this choke.
FAGOR provides the XPS-25 and XPS-65-A chokes that must necessarily
go with the corresponding XPS power supplies and the RPS-75-3, RPS-45
and RPS-20 chokes that must go with RPS power supplies.
XPS CHOKES
Outside look
XPS-25 CHOKE
F. H4/2
XPS CHOKES. Outside look.
Technical data
T. H4/4 XPS CHOKES. Technical data.
CHOKE
Inductance (10 kHz)
Rated current
Peak current
Max. terminal section
Approx. mass kg/lb
Operating ambient temperature
Storage temperature
Relative humidity
Operating vibration
Shipping vibration
Sealing
XPS-65-A CHOKE
XPS-25 XPS-65-A
0.350 mH 0.250 mH
50 A 120 A
100 A 185 A
10 mm² 70 mm²
8.0/17.6 12.0/26.4
5°C/45°C (41°F/113°F)
-20°C/60°C (-4°F/140°F)
80 % max.
0.5 g
2 g
IP 20