Areva MiCOM P225, Technical Manual

Page: 120 / 288

P225/EN HI/B11 Menu of the HMI
Page 10/48 MiCOM P225
3. THE MEASUREMENTS 1 & MEASUREMENTS 2 SUBMENUS
MEASUREMENTS 1
Press the ! and " keys to move about in the
MEASUREMENTS 1 menu.
IA RMS =
0.00
A
Display of the current of phase A (true RMS value)
taking into account the phase CT ratio (CT/VT RATIO
submenu)
IB RMS =
0.00
A
Display of the current of phase B (true RMS value)
taking into account the phase CT ratio (CT/VT RATIO
submenu)
IC RMS =
0.00
A
Display of the current of phase C (true RMS value)
taking into account the phase CT ratio (CT/VT RATIO
submenu)
IN RMS =
0.00
A
Display of the earth current (true RMS value) taking into
account the earth CT ratio (CT/VT RATIO submenu)
VAC RMS =
0.00
V
Display of the phase A – phase C voltage (true RMS
value) taking into account the VT phase ratio (CT/VT
RATIO submenu)
I1 POSITIVE=
0.00
A
Display of the positive sequence current
I2 NEGATIVE =
0.00
A
Display of the negative sequence current
I0 ZERO =
0.00
A
Display of the zero sequence current
FREQUENCY =
0.0
Hz
Display of the frequency of the power system supplying
the motor, calculated from the voltage or the phase
current signals.
MAX PH CURRENT =
CLR ? = CL
0.00 A
Display of the maximum phase current value outside the
starting period
I2/I1 RATIO =
* * * *
Display of the ratio negative sequence on positive
sequence of the current.
N.B. : The 3 phase currents, the earth current and the line voltage are
displayed as true RMS values : taking into account up to the 10
th
harmonic at 50 Hz and up to the 8
th
at 60 Hz.