NOVA AND NOVA PRO
Measurements
38
How to perform Rs trip-lock measurement
Step 1
Select the
LOOP
function with the function selector FCT key and select the
Rs
mode with the
▲▼ and ◀▶navigation
keys. Then select desired
current
,
Limit
and
scaling factor
option values with the
▲▼ and ◀▶navigation
keys. The
following menu is displayed:
Figure 5-333: Loop impedance Rs function menu
Step 2
Connect the appropriate test leads to the instrument and follow the
connection diagram shown in figure 5.13 to perform RCD trip-lock
measurement (see chapter
5.3.6 Contact voltage
).
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 5-344: Example of fault loop impedance measurement results using Rs function
