ABB REL670 2.2 IEC - Phase-To-Phase Fault in Forward Direction

remote end that is used in the communication scheme. In equation 273 the index
ZmRv references the specific zone to be coordinated to.
min ZmRv
RFRvPE 1.2 RFPE³ ×
EQUATION1316 V1 EN-US (Equation 273)
8.10.3.3 Phase-to-phase fault in forward direction
M13142-168 v2
Reactive reach
M13142-170 v3
The reach in reactive direction is determined by phase-to-earth reach setting X1.
No extra setting is required.
Resistive reach
GUID-01D7AB58-12CD-44EB-89E4-4D11828141D1 v1
R1PE and R0PE must be set in a way that the loop characteristic angle can be 60
deg (this gives a characteristic angle of 90 deg. at three-phase faults). If the 500-
series characteristic angle of 70 deg. is desired, R1PE and R0PE must be set
accordingly.
Fault resistance reach
GUID-CA51D9C7-7D9A-4DE5-92F1-FA1280BB899D v1
The fault resistance reaches in forward direction RFFwPP, must cover RFPP
Zm
with at least 25% margin. RFPP
Zm
is the setting of fault resistance for phase-to-
phase fault for the longest overreaching zone to be covered by FRPSPDIS, as
shown in figure
164. The minimum recommended reach can be calculated
according to equation 274 and 275.
Index PHS in images and equations reference settings for Phase
selection, quadrilateral characteristic with settable angle function
FRPSPDISand index Zm reference settings for Distance protection
function ZMRPDIS.
A) 60°
1.25
zmRFFwPP RFPP³ ×
EQUATION1318 V3 EN-US (Equation 274)
B) 70°
1.82 1 0.32 1 0.91Zm Zm ZmRFFwPP R PP X PP RFPP> × + × + ×
EQUATION2226 V1 EN-US (Equation 275)
where:
RFPP
Zm
is the setting of the longest reach of the overreaching zones that must be covered by
FRPSPDIS.
Section 8 1MRK 506 369-UEN B
Impedance protection
322 Line distance protection REL670 2.2 IEC
Application manual