ABB REG650 Technical Manual page 218

Section 8
Current protection
INNonDir>
UN>
OpMODE=3I0cosfi
IN>
INcosPhi>
OpMODE=3I03U0cosfi
INUNcosPhi>
Phi in RCA +- ROA
OpMODE=3I0 and fi
DirMode = Forward
Forward
DirMode = Reverse
Reverse
IEC09000147 V2 EN
Figure 105: Simplified logical diagram of the sensitive earth-fault current protection
212
&
1
&
&
&
&
t
t
&
t
SN
TimeChar = InvTime
&
TimeChar = DefTime
1MRK 502 048-UEN A
STNDIN
TRNDIN
STUN
TRUN
STARTDIRIN
TRDIRIN
&
STFW
STRV
IEC09000147-2-en.vsd
Technical manual