ABB REL650 User Manual

The residual current can be calculated by summing the three-phase currents or
taking the input from the neutral CT.
7.4.3 Function block
M12619-3 v8
EF4PTOC
I3P*
U3P*
I3PPOL*
I3PDIR*
BLOCK
BLKTR
BLKST1
BLKST2
BLKST3
BLKST4
ENMULT1
ENMULT2
ENMULT3
ENMULT4
CBPOS
CLOSECB
OPENCB
TRIP
TRIN1
TRIN2
TRIN3
TRIN4
TRSOTF
START
STIN1
STIN2
STIN3
STIN4
STSOTF
STFW
STRV
2NDHARMD
IEC06000424-5-en.vsdx
IEC06000424 V5 EN-US
Figure 90: EF4PTOC function block
7.4.4 Signals
IP11453-1 v2
PID-6967-INPUTSIGNALS v3
Table 86: EF4PTOC Input signals
Name
Type Default Description
I3P GROUP
SIGNAL
- Group connection for operate current
U3P GROUP
SIGNAL
- Group connection for polarizing voltage
I3PPOL GROUP
SIGNAL
- Group connection for polarizing current
I3PDIR GROUP
SIGNAL
- Group connection for directional current
BLOCK BOOLEAN 0 General block
BLKTR BOOLEAN 0 Block of trip
BLKST1 BOOLEAN 0 Block of step 1 (Start and trip)
BLKST2 BOOLEAN 0 Block of step 2 (Start and trip)
BLKST3 BOOLEAN 0 Block of step 3 (Start and trip)
BLKST4 BOOLEAN 0 Block of step 4 (Start and trip)
ENMULT1 BOOLEAN 0 When activated, the current multiplier is in use for
step1
ENMULT2 BOOLEAN 0 When activated, the current multiplier is in use for
step2
ENMULT3 BOOLEAN 0 When activated, the current multiplier is in use for
step3
Table continues on next page
1MRK 506 382-UEN A Section 7
Current protection
Line distance protection REL650 2.2 IEC 183
Technical manual

ABB REL650 Specifications

General

Brand	ABB
Model	REL650
Category	Protection Device
Language	English