ABB REL 551-C1*2.5 - Function Block

69
Definite time non-directional overcurrent
protection (TOC)
Chapter 5
Current
2.3 Function block
Figure 25: TOC function block, phase + N
Figure 26: TOC function block, phase
Figure 27: TOC function block, N
xx00000197.vsd
TOC--
TOC
BLOCK
BLKTR
TRIP
TRP
TRN
STP
STL1
STL2
STL3
STN
xx00000681.vsd
TOC--
TOC
BLOCK
BLKTR
TRIP
TRP
STP
STL1
STL2
STL3
xx00000709.vsd
TOC--
TOC
BLOCK
BLKTR
TRIP
TRN
STN