Three-Phase Directional Overcurrent Protection (F)Dphxpdoc - ABB RELION REC615 Technical Manual

Protection functions
Technical revision
E
F
Table 255: (F)PHLPTOC Technical revision history
Technical revision
B
C
D
E
4.1.2 Three-phase directional overcurrent protection
(F)DPHxPDOC
4.1.2.1 Identification
Function description
Three-phase directional overcur-
rent protection, low stage
Three-phase directional overcur-
rent protection, high stage
4.1.2.2 Function block
I_A
I_B
I_C
I
2
U_A_AB
U_B_BC
U_C_CA
U
U
BLOCK
ENA_MULT
NON_DIR
Figure 119: Function block
236
FDPHLPDOC
OPERATE
START
1
2
Change
Internal improvement
Internal improvement
Change
Minimum and default values changed to 40
Operate delay time setting
ms for the
Step value changed from 0.05 to 0.01 for the
Time multiplier setting
Internal improvement
Internal improvement
IEC 61850 IEC 60617
identification identification
3I> ->
(F)DPHLPDOC
DPHHPDOC 3I>> ->
DPHHPDOC
I_A OPERATE
I_B START
I_C
I
2
U_A_AB
U_B_BC
U_C_CA
U
1
U
2
BLOCK
ENA_MULT
NON_DIR
1MRS758755 C
ANSI/IEEE
C37.2 device
number
67-1
67-2
REC615 & RER615
Technical Manual