Areva MiCOM P921, Technical Manual

Page: 110 / 376

P92x/EN FT/E11 Technical Guide
User Guide
Page 32/110 MiCOM P921-P922-P923
8.2 MiCOM P921, MiCOM P922 and MiCOM P923 : common measurements
To gain access to the “MEASUREMENTS” menu from the default display, press 2
once and 6 twice.
The measured quantities only will be displayed in this menu.
MEASUREMENTS
Heading of the “MEASUREMENTS” menu
VA =
0.00 V
Description : True RMS measured phase A voltage
Note : this message only seen if "3Vpn+Vr" or "3Vpn"
connection selected
VB =
0.00
V
Description : True RMS measured phase B voltage
Note : this message only seen if "3Vpn+Vr" or "3Vpn"
connection selected
VC =
0.00 V
Description : True RMS measured phase C voltage
Note : this message only seen if "3Vpn+Vr" or "3Vpn"
connection selected
VAB =
0.00 V
Description : True RMS measured line Vab voltage
Note : this message only seen if "3Vpp+Vr" or"2Vpp+Vr"
connection
VBC =
0.00
V
Description : True RMS measured line Vbc voltage.
Note : this message only seen if "3Vpp+Vr" or"2Vpp+Vr"
connection
VCA =
0.00 V
Description : True RMS measured line Vca voltage.
Note : this message only seen if "3Vpp+Vr" connection
V0 =
0.00 V
Description : True RMS measured zero-sequence voltage V0.
Note : this message only seen if "3Vpp+Vr", "3Vpn+Vr",
"2Vpp+Vr" connection
FREQUENCY =
XX.XX
Hz
Description : value of the network frequency
Note : if the measurement of the frequency is not possible, the
display will be XX.XX – The measurement is not possible if the
input voltage is less than 10% of the rated voltage