ABB RELION REX640 Technical Manual page 963

1MRS759142 F
The operation of a particular zone is given after the set operate delay time for the
particular zone has elapsed (considering the fault type). The actual operate time
is the value calculated from the initial fault detection and it is not affected, for
example, in case the fault moves between zones.
The general indication of fault for each zone is given in the START_Zx (x = 1...5)
binary output. The faulted phase information can be found from the STARTS_Zx
(x = 1... 5) integer type output signal. This signal indicates (bitwise) the started
measuring elements for the corresponding phase. Value 0 does not exist but due
to the IEC 61850 standard requirement, it is shown by value "-5" as "No fault".
Value range is thus -5, 1..63. The three-phase fault is here indicated by "AB Fault, BC
Fault, CA Fault". However, three-phase fault indication for GFC depends also on the
additional condition for voltage (see
Table 920: STARTS_Zx information
Value
-5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Table continues on the next page
REX640
Technical Manual
Table 913
Value information
No zone starts
AG Fault
BG Fault
AG Fault, BG Fault
CG Fault
AG Fault, CG Fault
BG Fault, CG Fault
AG Fault, BG Fault, CG Fault
AB Fault
AG Fault, AB Fault
BG Fault, AB Fault
AG Fault, BG Fault, AB Fault
CG Fault, AB Fault
AG Fault, CG Fault, AB Fault
BG Fault, CG Fault, AB Fault
AG Fault, BG Fault, CG Fault, AB Fault
BC Fault
AG Fault, BC Fault
BG Fault, BC Fault
AG Fault, BG Fault, BC Fault
CG Fault, BC Fault
AG Fault, CG Fault, BC Fault
BG Fault, CG Fault, BC Fault
AG Fault, BG Fault, CG Fault, BC Fault
AB Fault, BC Fault
AG Fault, AB Fault, BC Fault
BG Fault, AB Fault, BC Fault
AG Fault, BG Fault, AB Fault, BC Fault
CG Fault, AB Fault, BC Fault
Protection functions
).
963