Micom P631 - Acquisition of the Fault Currents; Acquisition of the Differential and Restraining Currents

3.19.3 Acquisition of the Fault Currents
The P631 stores the fault currents data determined at the acquisition time.
The fault currents stored are the maximum phase currents for each end of the
transformer.
61Z5057A
FT_DA:
Fault curr.IP,a p.u.
[ 025 086 ]
FT_DA:
Fault curr.IN,a p.u.
[ 025 087 ]
FT_DA:
Fault curr.IP,b p.u.
[ 026 086 ]
FT_DA:
Fault curr.IN,b p.u.
[ 026 087 ]
IA,a
FT_RC:
Record. in progress
[ 035 000 ]
FT_DA:
Save measured values
305 052
IB,a
IC,a
IA,b
IB,b
IC,b
MAIN:
General reset USER
[ 003 002 ]
1: execute
MAIN:
Reset LED
306 020
Imax,a
Imax,b
Fig. 3-72: Acquisition of the fault currents
3.19.4 Acquisition of the Differential and Restraining Currents
The P631 stores the differential and restraining current data determined at the
acquisition time by the differential protection. Moreover, the values for the
second and fifth harmonics of the differential current are stored.
Differential and restraining currents are stored as per-unit quantities referred to
I
ref
.
P631
3 Operation
3-102 P631/EN M/R-11-C // P631-310-650