Phase selection
GUID-6C316E54-8CEF-48C6-8FBB-DCE65DBD5956 v2
ModePhSelKI
: Set this to
Off
.
KI
: Set this to 1.2.
I01
: This setting is used to detect high short circuit current during blocking time
tI01
when starting element impedance loop has picked up. Set at 400%
IB
.
ModeI0StRel
: Set this to
L1E
and
L2E
I0MinPhSel
: Set this to 4%
IB
.
tI0
: This is delay time for residual overcurrent start. Residual overcurrent start is
delayed by settable time delay
tI0
. Set this to 0.2s.
tI01
: This is blocking time of distance measuring for transient earth fault. Set this
to 0.1s.
Phase preference
GUID-156FC272-4E87-411A-959E-954FBF762EC6 v2
ModePhPref
: Set this to
L1 before L2
.
OpModet1L2
: Set this to
On
.
t1L2
: Set this to 1.0s.
OpModet2L2
: Set this to
On
.
t2L2
: Set this to 2.0s.
OpModet3L2
: Set this to
On
.
t3L2
: Set this to 3.0s.
U0Min
: This is used to check minimum residual voltage if start signal falls back.
Set this to 50%
UB
.
tVL2
: This is used to extend the time for phase L2 to check the voltage shift. To
time
t0L2
to
t6L2
is a settable time
tVL2
(operation time extension L2) added. Set
this to 0.5s.
OpModetGL2
: Set this to
On
.
tGL2
: This is an additional time delay to trip L2 in compensated earthing. If the
start signal continues to be active, trip is given after expiration
tPEZx
plus
tGL2
.
Set this to 0.6s.
dUOverdt
: Set this to 100V/s.
Stub line
GUID-2A60F3E3-CA07-4FDA-B3F7-63CD471E202F v1
ModeStubLine
: Set this to
Off
.
Section 7
1MRK 506 375-UEN A
Impedance protection
142
Railway application RER670 2.2 IEC
Application manual
Summary of Contents for RELION RER670
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