HT instruments SIRIUS89N - Manual (Page 43)

SIRIUS89N
EN - 41
LOOP 05.06.01 Value of phase to Earth
Resistance expressed in
Ω.
Value of the phase to Earth
prospective short circuit
current expressed in Ampere
calculated according to the
following formula.
1.07
Ω
215A
Freq=50.0HZ
VP-N=231V Vp-PE=231V
P-PE
!
At the end of the test
the instrument emits a
double sound signal
indicating that the test
is correctly
terminated
and
displays the values
alongside.
FUNC Z2
Ω
Working mode
Formula for calculation of prospective short circuit current:
PE
N
CC
Z
U
I
=
where U
N
= Nominal phase to neutral voltage = 127 if V
meas
≤150
230 if 150V< V
meas
≤250
This result can be stored pressing the
SAVE key twice (according to paragraph 9.1).