MI 3155
Eurotest
XD
Test and measurements
135
7.15
Z line – Line impedance and prospective short-
circuit current
Figure 7.54: Z line measurement menu
Measurement parameters / limits
Fuse Type
Selection of fuse type
[Off, gG, NV, B, C, D, K, Custom]
Fuse I
Rated current of selected fuse
Fuse t
Maximum breaking time of selected fuse
Isc factor
Isc factor
[0.20 … 3.00]
Test
1)
Test
[-, L/N, L/L, L1/N, L2/N, L3/N, L1/L2, L1/L3, L2/L3]
Earthing system
Ia(Ipsc)
Minimum short-circuit current for selected fuse or custom value
1)
With Plug test cable or Plug commander Z line is measured in the same way regardless
of the setting. The parameter is meant for documentation.
Refer to
Fuse tables guide
for detailed information on fuse data.
Connection diagram
Figure 7.55: Phase-neutral or phase-phase line impedance measurement
– connection of
Plug commander and 3-wire test lead
