MI 3325 MultiServicerXD
92
Figure 6.33: Examples of Insulation resistance (Installations) measurement result
6.2.6 Varistor test
A voltage ramp starts from 50 V and rises with a slope of 100 V/s. The measurement ends
when the defined end voltage is reached or if the test current exceeds the value of 1 mA.
Figure 6.34: Varistor test main menu
Test results / sub-results
Uac
........... Calculated a.c. breakdown voltage
Udc
.......... Breakdown voltage
Test parameters
I lim
Current limit [1.0 mA]
System
System [-, TT, TN, TN-C, TN-S]
Range
Test voltage range [1000 V]
Test limits
Low limit(Uac)
Low breakdown limit value (Uac)
[Off, 50 V … 620 V]
High limit (Uac)
High breakdown limit value (Uac)
[Off, 50 V … 620 V]
