ABB RET670 - Additional Distance Protection Directional Function for Earth Faults ZDARDIR; Application; Setting Guidelines

Name Values (Range) Unit Step Default Description
OperationDir Disabled
Non-directional
Forward
Reverse
- - Forward Operation mode of directionality NonDir /
Forw / Rev
X1 0.50 - 3000.00 ohm/p 0.01 40.00 Positive sequence reactance reach
R1 0.10 - 1000.00 ohm/p 0.01 5.00 Positive seq. resistance for zone
characteristic angle
X0 0.50 - 9000.00 ohm/p 0.01 120.00 Zero sequence reactance reach
R0 0.50 - 3000.00 ohm/p 0.01 15.00 Zero seq. resistance for zone characteristic
angle
RFPG 1.00 - 9000.00 ohm/l 0.01 100.00 Fault resistance reach in ohm/loop, Ph-G
Timer tPG Disabled
Enabled
- - Enabled Operation mode Disable/ Enable of Zone
timer, Ph-G
tPG 0.000 - 60.000 s 0.001 0.000 Time delay of trip, Ph-G
IMinPUPG 10 - 30 %IB 1 20 Minimum pickup phase current for Phase-to-
ground loops
3.6.6 Additional distance protection directional function for earth
faults ZDARDIR
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Additional distance protection
directional function for earth faults
ZDARDIR
S00346 V1 EN
-
3.6.6.1 Application
The phase-to-ground impedance elements can be optionally supervised by a phase
unselective directional function based on symmetrical components.
3.6.6.2 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
Section 3 1MRK504116-UUS C
IED application
306
Application manual