ABB RED650 - Settings; Operation Principle

PID-3581-OUTPUTSIGNALS v6
Table 240: ECPSCH Output signals
Name Type Description
TRIP BOOLEAN Trip signal by communication scheme logic
CS BOOLEAN Carrier Send by Communication Scheme Logic
CRL BOOLEAN Carrier Receive from Communication Scheme
Logic
LCG BOOLEAN loss of carrier guard signal
13.4.5 Settings
PID-3581-SETTINGS v6
Table 241: ECPSCH Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Off
On
- - Off Operation Off / On
SchemeType Off
Intertrip
Permissive UR
Permissive OR
Blocking
-
- Permissive UR Scheme type, Mode of Operation
tCoord 0.000 - 60.000 s 0.001 0.035 Communication scheme coordination
time
tSendMin 0.000 - 60.000 s 0.001 0.100 Minimum duration of a carrier send
signal
Table 242: ECPSCH Group settings (advanced)
Name
Values (Range) Unit Step Default Description
Unblock Off
NoRestart
Restart
-
- Off Operation mode of unblocking logic
tSecurity 0.000 - 60.000 s 0.001 0.035 Security timer for loss of carrier guard
detection
13.4.6 Operation principle
M13922-4 v5
The four step directional residual overcurrent protection EF4PTOC is configured to
give input information, that is directional fault detection signals, to the ECPSCH
logic:
1MRK 505 394-UEN A Section 13
Scheme communication
Line differential protection RED650 2.2 IEC 419
Technical manual