MI 3152(H)
Eurotest
XC (2,5 kV)
Tests and measurements
104
7.13
Voltage Drop
The voltage drop is calculated based on the difference of line impedance at connection points
(sockets) and the line impedance at the reference point (usually the impedance at the
switchboard).
Figure 7.44: Voltage drop menu
Measurement parameters / limits
Fuse Type Selection of fuse type
[gG, NV, B, C, D, K]
Fuse I
Rated current of selected fuse
Fuse t
Maximum breaking time of selected fuse
Limit(dU)
Maximum voltage drop
[3.0 %
… 9.0 %]
See Appendix A for reference fuse data.
Connection diagram
Figure 7.45: Voltage drop measurement
– connection of Plug commander and 3-wire test lead
Measurement procedure
STEP 1:
Measuring the impedance Zref at origin
Enter the
Voltage Drop
function.
Set test parameters / limits.
Connect test cable to the instrument.
Connect test leads to the origin of electrical installation, see
Figure 7.45
.
Touch or select the
icon to initiate Zref measurement.
