Multicheck6010
EN
- 77 -
Step 3
Check for warnings on the display and check the online voltage/terminal monitor before
starting the measurement. If everything is ok and the is shown, press the TEST key. After
performing the measurement, the results will appear on the display.
Figure 4 25: Example of fault loop impedance measurement results using trip-lock function
Displayed results:
Z
Fault loop impedance
ISC
Prospective fault current
Notes
:
•
The measurement of fault loop impedance using trip-lock function does not normally trip an
RCD. However, if the trip limit may be exceeded as a result of leakage current flowing through
the PE protective conductor or a capacitive connection between L and PE conductors.
•
The specified accuracy of test parameter is valid only if mains voltage is stable during the
measurement.
4.5 Line impedance and prospective short-circuit current
How to perform line impedance measurement
Step 1
Select the
LINE IMPEDANCE
function with the function selector FCT key Then select
desired Type,
Time and Curr
option values with the
▲▼
and
◀▶
navigation keys. The
following menu is displayed:
Figure 4 26: Line impedance measurement menu
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