ABB RED650 Technical Manual page 114

Section 6
Differential protection
108
Trip Signal Logic of LDLPSCH
DiffTripL1
DiffTripL2
DiffTripL3
TripL1RemoteTerm1
TripL1RemoteTerm2
TripL1RemoteTerm3
TripL1RemoteTerm4
TripL2RemoteTerm1
TripL2RemoteTerm2
TripL2RemoteTerm3
TripL2RemoteTerm4
BlockLocalTrip
1
BlockTripToRemote
1
TripL3RemoteTerm1
TripL3RemoteTerm2
TripL3RemoteTerm3
TripL3RemoteTerm4
BlockRemoteTrip
1
IEC13000260 V2 EN-US
Figure 41: Trip signal logic of LDLPSCH
Some of the signals in the above block diagrams are used as the internal signals by
LDLPSCH. Table Internal signals describes the source or destination of these
internal signals.
Table 41: Internal signals
Internal signals
testModeRemoteTerm1
testModeRemoteTerm2
testModeRemoteTerm3
blockRemoteTerm1
Table continues on next page
0
&
0
0
>=1
0
0
0
0
&
0
0
0
>=1
0
0 0
&
0
0 0
0
0
&
0
0
>=1
0
0
0
0
&
0
0
0
&
0
0
0
>=1
0
0
0
0
0
&
0
0
>=1
0 0
0
0
&
0
0
0
>=1
0
0 0
&
0
0 0
0
Source of destination
Signal from LDCM
Signal from LDCM
Signal from LDCM
Signal from LDCM
Line differential protection RED650 2.2 IEC
1MRK 505 394-UEN A
TRIPL1LOCAL
TRIPL1
TripL1ToRemote
0
>=1
TRIP
0 0
0
TRIPL2LOCAL
TRIPL2
TripL2ToRemote
0
>=1
TRIPLOCAL
0 0
0
TRIPL3LOCAL
TRIPL3
TripL3ToRemote
0
>=1
TRIPREMOTE
0 0
0
IEC13000260-2-en.vsd
Description
Test mode from remote
terminal 1
Test mode from remote
terminal 2
Test mode from remote
terminal 3
Block from remote terminal 1
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