ABB RER670 - Page 140

tPPZ5: This is used to set the time delay to trip for phase-to-phase faults in zone 5.
It should be set identical to zone 2/zone 3 timer setting.
zone 6
GUID-3145A2F9-164D-4035-B1F6-EE67CDA492CE v2
OpZ6: This is used for the Off/On operation of zone 6 and it is set to Off by default.
This zone can be used to provide switch on to fault protection.
DirModeZ6: This is used to set the zone 6 direction mode. It can be set to Non-
dir
ectional,
Forward and Reverse. The default setting is Forward direction mode.
PhSelModeZ6: This is used to enable the measuring loops of zone 6. It can be set to
Phsel logic, Release L1E, ReleaseL2E, Release PE, Release L1L2 and Release
PE&PP modes. The default setting is Phsel logic mode.
LEModeZ6: This is used to operate the load discrimination characteristic of zone 6.
The default setting is Off.
LCModeZ6: This is used to Off/On the adaptive load compensation mode of zone 6.
It avoids overreaching of the zone in to the next section in case of resistive fault
due to remote end feed. Generally, this setting is not needed for zone 6. The default
setting is Off.
X1FwZ6: This is used to set the forward positive sequence reactance reach of zone
6 in Ohm/p. It may be set identical to zone 2 reach setting.
X1RvZ6: This is used to set the reverse positive sequence impedance reach of zone
6 in Ohm/p. It may be set less than zone 1 reach of distance protection for the
shortest line in the reverse direction.
REoverRLZ6: This is used to set the earth return compensation factor for resistance
of zone 6. It provides zero sequence compensation for phase-to-earth faults.
XEoverXLZ6: This is used to set the earth return compensation factor for reactance
of zone 6. It provides zero sequence compensation for phase-to-earth faults.
RFPEFwZ6: This is used to set the forward fault resistive reach in Ohm/p for the
phase-to-earth faults of zone 6. It may be set identical to zone 2 resistive reach
setting.
RFPERvZ6: This is used to cover the zone 6 fault resistive reach in Ohm/p for
phase-to-earth faults in reverse direction. It should be set identical to zone 2
resistive reach setting.
RFPPFwZ6: This is used to set the forward fault resistive reach in Ohm/p for
phase-to-phase faults of zone 6. It should be set identical to zone 2 resistive reach
setting.
RFPPRvZ6: This is used to cover the zone 6 fault resistive reach in Ohm/p for
phase-to-phase faults in reverse direction. It should be set identical to zone 2
resistive reach setting.
Section 7 1MRK 506 375-UEN A
Impedance protection
134 Railway application RER670 2.2 IEC
Application manual