MI 3152(H)
Eurotest
XC (2,5 kV)
Tests and measurements
111
7.9
Z loop – Fault loop impedance and prospective fault
current
Figure 7.32: Z loop 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
Selection of test
[-, L/PE, L1/PE, L2/PE, L3/PE]
1)
Earthing system
Ia(Ipsc)
Minimum fault current for selected fuse or custom value
1)
With Plug test cable or Plug commander Z loop 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 7.33: Connection of Plug commander and 3-wire test lead
