HT instruments SIRIUS89N - Manual (Page 45)

SIRIUS89N
EN - 43
LOOP 05.06.01 Value of phase to Earth
Resistance expressed in
Ω.
Effective value of the phase
to Earth prospective short
circuit current expressed in
Ampere calculated according
to the following formula..
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.
2
Ω
115A
Freq=50.0HZ
VP-N=231V Vp-PE=231V
R
A
!
Working mode FUNC
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).
6.4.6. Measurement procedure and results of "
" mode
1. Select mode by means of the
F1 key.
2. Connect the Black, Red and Green connectors of the split cables to the
corresponding input terminals of the instrument B1, B2, B3.
Instrument connection for Phase Sequence Detection in a 400V three-phase system
3. Press the
START key to execute a test.
LOOP 05.06.01 Phase Sequence OK
Value of the Phase to Phase
Voltage
RST
FRQ=50.0HZ VR-S=391V
VS-T=401V VT-R=399V
OK
!
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
Working mode
This result can be stored pressing the SAVE key twice (according to paragraph 9.1).
START
STOP