Name Type Values (Range) Unit Description
5=BC Fault
6=CA Fault
7=ABC Fault
Cross country fault BOOLEAN
0=False
1=True
Indication of a cross-
country-fault (high imp.
earthed), GFC
Earth fault detected BOOLEAN
0=False
1=True
Indication of a single
phase earth-fault, GFC
Earth-fault direction Enum
0=unknown
1=forward
2=backward
3=both
Earth-fault direction
(low impedance earth-
ed), GFC
Operate of all zones INT32 0...31 Operate signal of all
zones
Fault/load Dir Zn1 Enum
0=unknown
1=forward
2=backward
3=both
Direction of fault or
load zone 1
Dir resistance Zn1 FLOAT32 -3000.00...3000.00 ohm Direction resistance,
zone 1
Dir reactance Zn1 FLOAT32 -3000.00...3000.00 ohm Direction reactance,
zone 1
Flt loop 1st Ris Zn1 FLOAT32 -3000.00...3000.00 ohm First PE-loop resist-
ance, zone 1
Flt loop 1st Rea Zn1 FLOAT32 -3000.00...3000.00 ohm First PE-loop reactance,
zone 1
Flt loop 2nd Ris Zn1 FLOAT32 -3000.00...3000.00 ohm Second PE-loop resist-
ance, zone 1
Flt loop 2nd Rea Zn1 FLOAT32 -3000.00...3000.00 ohm Second PE-loop reac-
tance, zone 1
Flt PP-loop Ris Zn1 FLOAT32 -3000.00...3000.00 ohm PP-loop resistance,
zone 1
Flt PP-loop Rea Zn1 FLOAT32 -3000.00...3000.00 ohm PP-loop reactance, zone
1
Phase reactance Zn1 FLOAT32 -3000.00...3000.00 ohm Phase to earth reac-
tance in phase domain,
zone 1
Fault/load Dir Zn2 Enum
0=unknown
1=forward
2=backward
3=both
Direction of fault or
load zone 2
Dir resistance Zn2 FLOAT32 -3000.00...3000.00 ohm Direction resistance,
zone 2
Dir reactance Zn2 FLOAT32 -3000.00...3000.00 ohm Direction reactance,
zone 2
Flt loop 1st Ris Zn2 FLOAT32 -3000.00...3000.00 ohm First PE-loop resist-
ance, zone 2
Flt loop 1st Rea Zn2 FLOAT32 -3000.00...3000.00 ohm First PE-loop reactance,
zone 2
Flt loop 2nd Ris Zn2 FLOAT32 -3000.00...3000.00 ohm Second PE-loop resist-
ance, zone 2
Flt loop 2nd Rea Zn2 FLOAT32 -3000.00...3000.00 ohm Second PE-loop reac-
tance, zone 2
Flt PP-loop Ris Zn2 FLOAT32 -3000.00...3000.00 ohm PP-loop resistance,
zone 2
Table continues on the next page
1MRS759142 F Protection functions
REX640
Technical Manual
997
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