Sel 411L - Figure 2.43 Typical External AC;DC Connections-Dual Circuit Breaker

P.2.46
SEL-411L Relay Protection Manual Date Code 20151029
Installation
AC/DC Connection Diagrams
Figure 2.43 Typical External AC/DC Connections—Dual Circuit Breaker
Circuit
Breaker 1
Circuit
Breaker 2
ICW
IBW
IAW
IAX
IBX
ICX
BK1 CTs
BK2 CTs
LINE PTs
A
BUS 1
Relay
B
C
A
BUS 2
B
C
A
B
C
LINE
Forward Direction
Synchronism-Check
Circuit Breaker 1
VAZ
PT Send
DTT Send
OUT204
(+)
(—)
Permissive
Trip Send
(to Comm.
Transmitter)
(+)
(—)
Direct Transfer
Trip Send
OUT205
Alarm to
Annunciator, RTU,
or SEL-2020/2030
(+)
OUT208
Trip Coil
52A1
OUT201
(+)
(—) Breaker 1
Trip Circuit
TC
Close Coil
52B1
OUT202
(+)
(—) Breaker 1
Close Circuit
CC
Lock Out
86B1
OUT203
(+)
(—) Bus 1
Breaker Failure
Trip Circuit
86
Trip Coil
52A2
OUT201
(+)
(—) Breaker 2
Trip Circuit
TC
Close Coil
52B2
OUT202
(+)
(—) Breaker 2
Close Circuit
CC
Lock Out
86B2
OUT203
(+)
(—) Bus2
Breaker Failure
Trip Circuit
86
Synchronism-Check
Circuit Breaker 2
VBZVCYVBYVAY
(+)
(—)
PowerPower
(+)
(—)
Vdc1
Monitor Vdc1
(Station Battery)
(+)
(—)
Vdc2
Monitor Vdc2
(Trip Circuits,
Comms)
IN201
(+)
(—)
52A1
Breaker Status 1
(—)
IN202
Bus 1
Breaker Failure
Lock Out
BF LO
(+)
IN203
(+)
(—)
PT RX
Permissive Trip
Receive
(—)
IN204
Direct Transfer
Trip Receive
DTT RX
(+)
IN205
(+)
(—)
52A2
Breaker Status 2
(—)
IN206
Bus 2
Breaker Failure
Lock Out
BF LO
(+)
52-1
52-2