MI 3102(H) BT
Eurotest
XE
Measurements
54
Displayed results:
ΔU
............ voltage drop
Isc
............ prospective short-circuit current
Z
............... line impedance at measured point
Zref
.......... reference impedance
Voltage drop is calculated as follows:
100
)
(
%
N
N
REF
U
I
Z
Z
U
where:
ΔU ........ calculated voltage drop
Z ........... impedance at test point
Z
REF
...... impedance at reference point
I
N
.......... rated current of selected fuse
U
N
......... nominal voltage (see table below)
U
n
Input voltage range (L-N or L1-L2)
110 V (93 V
U
L-N
134 V)
230 V (185 V
U
L-N
266 V)
400 V (321 V
U
L-L
485 V)
Notes:
If the reference impedance is not set the value of Z
REF
is considered as 0.00 Ω.
The Z
REF
is cleared (set to 0.00 Ω) if pressing CAL key while instrument is not connected
to a voltage source.
I
SC
is calculated as described in chapter 0Additional key:
