ABB REG650 - Page 218

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