ABB Relion 670 Series Technical Reference Manual page 838

Section 13
Scheme communication
13.8.2.3
13.8.2.4
832
I3P
Calculation P and
pf
V3P
ANSI10000011 V1 EN
Figure 415: Logic diagram of Low active power and low power factor protection
(LAPPGAPC, 37_55)
Function block
LAPPGAPC (37_55)
I3P* TRLAP
V3P* TRLPF
BLOCK TRTPFA
BLKTR TRLPFB
TRLPFC
PU_LAP
PU_LPF
PU_LAP_A
PU_LAP_B
PU_LAP_C
PU_LPF_A
PU_LPF_B
PU_LPF_C
ANSI09000763-1-en.vsd
ANSI09000763 V1 EN
Figure 416: LAPPGAPC (37_55) function block
Input and output signals
Table 448: LAPPGAPC (37_55) Input signals
Name Type
I3P GROUP
SIGNAL
V3P GROUP
SIGNAL
BLOCK BOOLEAN
BLKTR BOOLEAN
P < LAP<
pf < pf<
Default Description
- Three phase group signal for current
- Three phase group signal for voltage
0 Block of function
0 Block all trip signals of the funtction
1MRK505222-UUS C
PU_LAP_x
TRLAP
t
PU_LPF_x
TRLPFx
t
ANSI10000011-1-en.vsd
Technical reference manual