16.2.3.2  Permissive overreach scheme
SEMOD141800-9 v1
Set 
Operation
=
On
Set 
Scheme
type
=
Permissive OR
Set 
tCoord
= 0 ms
Set 
tSendMin
= 0.1 s
16.2.3.3  Blocking scheme
SEMOD141800-12 v1
Set 
Operation
=
On
Set 
Scheme
type
=
Blocking
Set 
tCoord
= 25 ms (10 ms + maximal transmission time)
Set 
tSendMin
= 0 s
16.2.3.4  Intertrip scheme
SEMOD141800-15 v1
Set 
Operation
=
On
Set 
Scheme
type
=
Intertrip
Set 
tCoord
= 50 ms (10 ms + maximal transmission time)
Set 
tSendMin
= 0.1 s
16.3  Current reversal and Weak-end infeed logic for
distance protection 3-phase ZCRWPSCH
IP15751-1 v4
16.3.1  Identification
M15073-1 v5
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Current reversal and weak-end infeed
logic for distance protection 3-phase
ZCRWPSCH - 85
16.3.2  Application
IP15023-1 v1
16.3.2.1  Current reversal logic
M13895-4 v6
To avoid this kind of disturbances, a fault current reversal logic (transient blocking
logic) can be used.
Section 16 1MRK 506 369-UEN B
Scheme communication
714 Line distance protection REL670 2.2 IEC
Application manual