ABB Relion 650 Series Technical Manual page 135

1MRK 506 326-UUS B
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).
5.4.7 Technical data
Table 36: FMPSPDIS (21) technical data
Function
Load encroachment criteria:
Load resistance, forward and
reverse
5.5 Directional impedance quadrilateral and mho ZDNRDIR
(21D)
5.5.1 Identification
Function description
Directional impedance quadrilateral
and mho
5.5.2 Functionality
The evaluation of the direction to the fault is made in the directional element ZDNRDIR for the
quadrilateral and mho characteristic distance protections ZQDPDIS and ZMOPDIS.
5.5.3 Function block
I3P*
V3P*
ANSI09000056 V1 EN-US
Figure 73: ZDNRDIR (21D) function block
Line distance protection REL650
Technical manual
Range or value
(1.00–3000) W/phase
(5–70) degrees
ZDNRDIR (21D)
DIR_POL
STDIRCND
ANSI09000056-1-en.vsd
© Copyright 2011 ABB Power Grids. All rights reserved
IEC 61850 IEC 60617
identification identification
ZDNRDIR -
Impedance protection
Accuracy
± 5.0% static accuracy
Conditions:
Voltage range: (0.1–1.1) x V
Current range: (0.5–30) x I
GUID-6260AD7E-046B-4AB5-BDA1-90109B3A129C v1
GUID-6A304F35-7FD6-4BC7-9708-AE779812D4A4 v2
ANSI/IEEE C37.2
device number
21D
Section 5
SEMOD153649-2 v4
n
n
SEMOD154885-5 v6
SEMOD155551-4 v4
129