Technical Data - ABB REL650 series Technical Manual

Section 6
Impedance protection
6.3.7
6.4
6.4.1
160
8= -ABG
16= -BCG
32= -CAG
56= -ABCG
8= -AB
16= -BC
32= -CA
56= ABC
The signal DLECND must be connected to the input LDCND for selected mho impedance
measuring zones ZMOPDIS.
In case several loops have to be released at the same time, the value is the sum of the values
for all loops, like the value for three-phase fault is the sum of the phase-to-phase loop
values (8+16+32=56).

Technical data

Table 42: FMPSPDIS (21) technical data
Function
Load encroachment criteria:
Load resistance, forward and
reverse
Additional distance protection directional function for
ground faults ZDARDIR (21D)
Identification
Function description
Additional distance protection
directional function for ground faults
Range or value
(1.00–3000) W/phase
(5–70) degrees
IEC 61850 IEC 60617
identification identification
ZDARDIR
1MRK 506 335-UUS A
Accuracy
± 5.0% static accuracy
Conditions:
Voltage range: (0.1–1.1) x V
n
Current range: (0.5–30) x I
n
ANSI/IEEE C37.2
device number
21D
S00346 V1 EN
Technical manual