ABB RELION REX640 Technical Manual page 924

Section 4
Protection functions
918
Name Type
Release PP-loop Enum
Cross country fault BOOLEAN
Earth fault detected BOOLEAN
Earth-fault direction Enum
Operate of all zones INT32
Fault/load Dir Zn1 Enum
Dir resistance Zn1 FLOAT32
Dir reactance Zn1 FLOAT32
Flt loop 1st Ris Zn1 FLOAT32
Flt loop 1st Rea Zn1 FLOAT32
Flt loop 2nd Ris Zn1 FLOAT32
Flt loop 2nd Rea Zn1 FLOAT32
Flt PP-loop Ris Zn1 FLOAT32
Flt PP-loop Rea Zn1 FLOAT32
Phase reactance Zn1 FLOAT32
Fault/load Dir Zn2 Enum
Dir resistance Zn2 FLOAT32
Dir reactance Zn2 FLOAT32
Table continues on next page
Values (Range) Unit
-5=No fault
-4=ABCG Fault
-3=CAG Fault
-2=BCG Fault
-1=ABG Fault
1=AG Fault
2=BG Fault
3=CG Fault
4=AB Fault
5=BC Fault
6=CA Fault
7=ABC Fault
0=False
1=True
0=False
1=True
0=unknown
1=forward
2=backward
3=both
0...31
0=unknown
1=forward
2=backward
3=both
-3000.00...3000. ohm
00
-3000.00...3000. ohm
00
-3000.00...3000. ohm
00
-3000.00...3000. ohm
00
-3000.00...3000. ohm
00
-3000.00...3000. ohm
00
-3000.00...3000. ohm
00
-3000.00...3000. ohm
00
-3000.00...3000. ohm
00
0=unknown
1=forward
2=backward
3=both
-3000.00...3000. ohm
00
-3000.00...3000. ohm
00
1MRS759142 C
Description
Release signals for
PP/3P loops. GFC
Indication of a cross-
country-fault (high imp.
earthed), GFC
Indication of a single
phase earth-fault, GFC
Earth-fault direction (low
impedance earthed),
GFC
Operate signal of all
zones
Direction of fault or load
zone 1
Direction resistance,
zone 1
Direction reactance,
zone 1
First PE-loop resistance,
zone 1
First PE-loop reactance,
zone 1
Second PE-loop
resistance, zone 1
Second PE-loop
reactance, zone 1
PP-loop resistance, zone
1
PP-loop reactance, zone
1
Phase to earth reactance
in phase domain, zone 1
Direction of fault or load
zone 2
Direction resistance,
zone 2
Direction reactance,
zone 2
REX640
Technical Manual