Unitronics electric UM2B, User Manual

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5.- SOFTWARE DESCRIPTION
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5.3.5.- Measurements
Recovery Voltage Software
The measurement of both the recovery voltage and the insulation resistance are
performed in this section. The upper part of the measurement screen (Figure 5-17) includes
a graphic that will show the recovery voltage throughout the test. The lower left-hand part
of the screen shows information on the insulation resistance at two moments in time
(minutes 1 and 10), as well as the polarization index and time constant when them can be
computed. To the right is the recovery voltage at each moment of the measurement and
indicators showing the number of cycles remaining to be performed, the time that has
elapsed since initiation of the test and the time remaining for completion of the current cycle.
Figure 5-17: Screen for test evolution (Recovery Voltage).
The number of cycles that the test will last depends on the time base selected in
configuration of the measurement; if this is large, the number of cycles will be smaller. If
the charge time in one of the cycles is greater than 10 min, the software takes advantage to
measure insulation resistance (Figure 5-19-a). If it was not measured at the end of the test,
the software will ask the user if he wishes to do it (Figure 5-18). It will also be asked for if
the user cancels the test and the resistance was not measured.