MI 3152(H)
Eurotest
XC (2,5 kV)
Tests and measurements
105
Press the
button to measure Zref.
STEP 2:
Measuring the Voltage drop
Enter the
Voltage Drop
function.
Set test parameters / limits.
Connect test cable to the instrument.
Connect test leads or Plug commander to the tested points,
see
Figure 7.45
.
Start the measurement.
Save results (optional).
Figure 7.46: Example of Zref measurement result (STEP 1)
Figure 7.47: Examples of Voltage drop measurement result (STEP 2)
Measurement results / sub-results
dU
Voltage drop
Ipsc
Prospective short-circuit current
Un
Voltage L-N
Zref
Reference line impedance
Z
Line impedance
Voltage drop is calculated as follows:
100
)
(
%
N
N
REF
U
I
Z
Z
dU
