Alstom MiCOM P125 - Menu MEASUREMENTS for P125; MEASUREMENTS Menu Points for P126

P12y/EN FT/D22 Technical Guide
User Guide
Page 28/108 MiCOM P125/P126/P127
4.3.1 Menu MEASUREMENTS for P125
MEASUREMENTS
Heading of MEASUREMENTS menu.
To gain access to the submenu contents, press 2.
Frequency
50.00 Hz
Displays the network frequency taken from analogue
inputs having a reliable signal level. In case of no
reliable analogue signal input level present the display
shows XX.XX Hz.
IN
3.15 A
Displays the earth current (true RMS value) taking in
account the earth CT ratio (CONFIGURATION/Transfo.
Ratio submenu).
I N – fn
CLR = [C] 0.00 A
Displays the earth current I N (true RMS value) minus
the earth current value at the fundamental frequency
(value of the harmonic).
UN
3.15 V
Displays the earth voltage taking in account the earth
VT connection mode and ratio (General Options and
Transfo. Ratio submenu).
4.3.2 MEASUREMENTS Menu Points for P126
MEASUREMENTS
Heading of MEASUREMENTS menu.
To gain access to the items of the menu, press 2 and
6 until the submenu is reached. To gain access to the
submenu contents, press 2 or 8.
Frequency
50.00 Hz
Displays the network frequency taken from analogue
inputs having a reliable signal level. In case of no
reliable analogue signal input level present the display
shows XX.XX Hz.
I A
600.00 A
Displays the A phase current (true RMS value) taking
into account the phase CT ratio
(CONFIGURATION/Transfo. Ratio submenu).
I B
600.00 A
Displays the B phase current (true RMS value) taking
into account the phase CT ratio
(CONFIGURATION/Transfo. Ratio submenu).
I C
600.00 A
Displays the C phase current (true RMS value) taking
into account the phase CT ratio
(CONFIGURATION/Transfo. Ratio submenu).
IN
3.15 A
Displays the earth current (true RMS value) taking in
account the earth CT ratio (CONFIGURATION/Transfo.
Ratio submenu).