AND
AND
OR
OR
VL1FF
VL1OK
VB1FF
VB1OK
VB2FF
VB2OK
BUS1_CL
BUS1_OP
LINE1_CL
LINE1_OP
selectedFuseOK
BLOCK
lineVoltage
invalidSelection
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_ansi.vsd
OR
OR
line2Voltage
bus2Voltage
line1Voltage
ANSI05000780 V1 EN
Figure 312:
Simplified logic diagram for the voltage selection function for a bus circuit breaker in a breaker-and-
a-half arrangement
Section 12
1MRK505222-UUS C
Control
624
Technical reference manual
Summary of Contents for Relion 670 series
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