Benning IT 120 B Kurzanleitung Seite 25

Measurements
3.8 Loop impedance (phase-PE)
 Set
function
d Connection diagram
Zs
Zs
rcd
e Press the
f View results and press the MEM key to save them
b Set sub-function
- Zl
- Zs (without tripping of
rcd
the RCD)
key
c Set parameters and limits
- F use type [*F sets limit off,
gL/gG, B, C, K, D]
- Fuse current rating
[0.5 A - 1250 A]
- Fuse trip-out time
[35 ms - 5 s]
Displayed results:
Z
Loop impedance (loop resistance)
I Short-circuit current (fault current)
SC
Lim Low limit of prospective short-circuit
current (fault current)
25
Loop impedance
