Technical Data - ABB REL650 series Technical Manual

1MRK 506 335-UUS A
6.4.7
6.5
6.5.1
6.5.2
6.5.3
Technical manual

Technical data

Table 48: ZDARDIR (21D) technical data
Function
Mimimum operating current, I
Minimum polarizing current, IPol
Minimum polarizing voltage, VPol
Relay characteristic angle,
AngleRCA
Directional impedance quadrilateral and mho
ZDNRDIR (21D)
Identification
Function description
Directional impedance quadrilateral and
mho
Functionality
The evaluation of the direction to the fault is made in the directional element ZDNRDIR
(21D) for the quadrilateral and mho characteristic distance protections ZQMPDIS (21).
Function block
ZDNRDIR (21D)
I3P* DIR_POL
V3P* STDIRCND
ANSI09000056-1-en.vsd
ANSI09000056 V1 EN
Figure 77: ZDNRDIR (21D) function block
Range or value
(5 – 200)% of IBase
(5 – 100)% of IBase
(4 – 100)% of VBase
(-90 – 90) degrees
IEC 61850 IEC 60617
identification identification
ZDNRDIR
Section 6
Impedance protection
Accuracy
< ±1.0% of I , for I<I ,
n n
±1.0% of I, for I>I
n
< ±1.0% of I
n
< ±0.5% of V
n
< ±2.0 degrees
ANSI/IEEE C37.2
device number
- 21D
165