ABB RED650 - Monitored Data; Operation Principle

Name Values (Range) Unit Step Default Description
tPRCrv4 0.005 - 3.000 - 0.001 0.500 Parameter PR for customer
programmable curve for step 4
tTRCrv4 0.005 - 100.000 - 0.001 13.500 Parameter TR for customer
programmable curve for step 4
tCRCrv4 0.1 - 10.0 - 0.1 1.0 Parameter CR for customer
programmable curve for step 4
HarmBlock4 Off
On
- - Off Enable block of step 4 from harmonic
restrain
Table 72: OC4PTOC Non group settings (basic)
Name Values (Range) Unit Step Default Description
MeasType DFT
RMS
- - DFT Selection between DFT and RMS
measurement
GlobalBaseSel 1 - 12 - 1 1 Selection of one of the Global Base
Value groups
8.2.6 Monitored data
PID-6973-MONITOREDDATA v3
Table 73: OC4PTOC Monitored data
Name
Type Values (Range) Unit Description
DIRL1 INTEGER 1=Forward
2=Reverse
0=No direction
-
Direction for phase1
DIRL2 INTEGER 1=Forward
2=Reverse
0=No direction
-
Direction for phase2
DIRL3 INTEGER 1=Forward
2=Reverse
0=No direction
-
Direction for phase3
IL1 REAL - A Current in phase L1
IL2 REAL - A Current in phase L2
IL3 REAL - A Current in phase L3
8.2.7 Operation principle
M12883-3 v10
Directional phase overcurrent protection, four steps OC4PTOC is divided into four
different sub-functions. For each step x , where x is step 1, 2, 3 and 4, an operation
mode is set by DirModex: Off/Non-directional/Forward/Reverse.
The protection design can be divided into four parts:
1MRK 505 394-UEN A Section 8
Current protection
Line differential protection RED650 2.2 IEC 171
Technical manual