ABB REC650 ANSI - Page 241

AND
AND
OR
OR
VL1FF
VL1OK
VB1FF
VB1OK
VB2FF
VB2OK
BUS1_CL
BUS1_OP
LINE1_CL
LINE1_OP
BLOCK
L1SEL
AND
AND
VSELFAIL
VL2FF
VL2OK
OR
AND
AND
BUS2_CL
BUS2_OP
LINE2_CL
LINE2_OP
AND
AND
L2SEL
OR
AND
B2SEL
AND
AND
AND
en05000780_2_ansi.vsd
OR
OR
line2Voltage
bus2Voltage
line1Voltage
invalidSelection
lineVoltage
selectedFuseOK
ANSI05000780 V2 EN
Figure 100: Simplified logic diagram for the voltage selection function for a bus circuit breaker in a breaker-and-a-
half arrangement
1MRK 511 287-UUS A Section 10
Control
235
Technical manual