Eaton Sefelec SXS56 - Nominal DC Currents in the Hipot Function; Definition of the Nominal DC Current; XS 50 VA DC Current Curves (RXS56, DXS56, SXS56)

XS series operating manual
XS user manual v0.55 - 153 -
Nominal DC currents in the hipot function
This section only concerns the units RXS56/506, DXS56/506, SXS56/506 (units provided with the
standard DC option).
Definition of the nominal DC current
Given a configured test voltage Uc, the nominal DC current is defined as the output current above which
the device can no longer regulate its output voltage to Uc ±ΔU (ΔU = 10V when the configured test
voltage Uc ≤ 1000V, and ΔU = 20V when Uc > 1000V).
When the device can not regulate its output voltage to Uc, according to the criteria described above, the
red DEL « BAD » on the front side of the device is turned on, and the message « VOLTAGE ERROR »
appears on the screen.
XS 50VA DC current curves (RXS56, DXS56, SXS56)
Nominal current vs configured test voltage for XS 50VA devices
The nominal current In was measured with a multi-meter set on true RMS mode (AC+DC),
which means that
22
nACnDCn
III 
(
nDC
I
being the average value of the nominal current and
nAC
I
the RMS value of the AC part of the nominal current).
Warning! The current values displayed on the XS screen slightly differ from the true RMS
values of the ouput current.
The voltage values used to determine the In currents are the ones displayed by the XS.