Additional Distance Protection Directional Function For Earth Faults Zdardir; Application; Setting Guidelines - ABB RET670 Applications Manual

Section 3
IED application
Name Values (Range)
OperationDir Disabled
Non-directional
Forward
Reverse
X1 0.50 - 3000.00
R1 0.10 - 1000.00
X0 0.50 - 9000.00
R0 0.50 - 3000.00
RFPG 1.00 - 9000.00
Timer tPG Disabled
Enabled
tPG 0.000 - 60.000
IMinPUPG 10 - 30
3.6.6
3.6.6.1
3.6.6.2
306
Unit Step
- -
ohm/p 0.01
ohm/p 0.01
ohm/p 0.01
ohm/p 0.01
ohm/l 0.01
- -
s 0.001
%IB 1
Additional distance protection directional function for earth
faults ZDARDIR
Function description
Additional distance protection
directional function for earth faults

Application

The phase-to-ground impedance elements can be optionally supervised by a phase
unselective directional function based on symmetrical components.

Setting guidelines

AngleRCA and AngleOp: these settings define the operation characteristic. Setting
AngleRCA is used to turn the directional characteristic, if the expected fault current
angle does not coincide with the polarizing quantity to produce the maximum torque.
The angle is positive, if operating quantity lags the polarizing quantity and negative if
it leads the polarizing quantity. The setting AngleOp (max. 180 degrees) defines the
Default Description
Forward Operation mode of directionality NonDir /
Forw / Rev
40.00 Positive sequence reactance reach
5.00 Positive seq. resistance for zone
characteristic angle
120.00 Zero sequence reactance reach
15.00 Zero seq. resistance for zone characteristic
angle
100.00 Fault resistance reach in ohm/loop, Ph-G
Enabled Operation mode Disable/ Enable of Zone
timer, Ph-G
0.000 Time delay of trip, Ph-G
20 Minimum pickup phase current for Phase-to-
ground loops
IEC 61850 IEC 60617
identification identification
ZDARDIR
S00346 V1 EN
1MRK504116-UUS C
ANSI/IEEE C37.2
device number
-
Application manual