Auxiliary modules
4.
AUXILIARY MODULES
Chokes
200
Ref.1912
DDS
HARDWARE
· 184 ·
4.2 Chokes
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.
Outside look
Technical data
XPS CHOKES
F. H4/2
XPS CHOKES. Outside look.
T. H4/4 XPS CHOKES. Technical data.
CHOKE XPS-25 XPS-65-A
Inductance (10 kHz) 0.350 mH 0.250 mH
Rated current 50 A 120 A
Peak current 100 A 185 A
Max. terminal section 10 mm² 70 mm²
Approx. mass kg/lb 8.0/17.6 12.0/26.4
Operating ambient temperature 5°C/45°C (41°F/113°F)
Storage temperature -20°C/60°C (-4°F/140°F)
Relative humidity 80 % max.
Operating vibration 0.5 g
Shipping vibration 2 g
Sealing IP 20
XPS-25 CHOKE
XPS-65-A CHOKE
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