Installation manual

Technical Spec. TT-3038G
58 Apr 2004
TT-3038G – Measuring the Ship Source Impedance
Select a power outlet from the ship 24 VDC system, and
measure the source impedance of the ship installation as
described below.
Measure the voltage without load (R.var disconnected).
Set the current to e.g. 1 Amp by adjusting R.var - and
measure the corresponding voltage change.
Example:
1 Amp and 50 mV. Source impedance: 50 mV/1 Amp = 50
mΩ.
A
V
Ship Installations
Battery 24 VDC
BDU Power
outlet
R.var