SETPOINT
FUNCTION:
Enabled
FlexLogic Operands
Sync1 OK
SETPOINTS
Do Not Operate, Operate
OUTPUT RELAY 3 (X)
DV <= MAX VOLTS DIFF
AND
SETPOINT
BLOCK :
Off = 0
Magnitude V
bv
Disabled
SETPOINTS
MAX VOLT DIFFERENCE:
SETPOINT
DEAD SOURCE PERM:
Disabled
L BUS & D LINE
L LINE & D BUS
Sync1 Dead Src OK
Phase F
bv
Frequency f
bv
Magnitude V
lv
Phase F
lv
Frequency f
lv
DV = |V3phv – V1phv|
Df = |f
3phv – f1phfv|
DF=|(F
3phv –F1phv)|
MAX FREQ DIFFERENCE:
MAX ANGLE DIFFERENCE:
Df <= MAX FREQ DIFF
DF <= MAX ANGLE DIFF
Vbus >= LIVE BUS V MIN
SETPOINT
LIVE BUS VOLTS MIN:
Vline >= LIVE LINE V MIN
SETPOINT
LIVE LINE VOLTS MIN:
Vbus<=DEAD BUS V MAX
SETPOINT
LIVE BUS VOLTS MAX:
Vline<=DEAD LINE V MAX
SETPOINT
DEAD LINE VOLTS MAX:
D LINE & D BUS
D LINE OR D BUS
D LINE XOR D BUS
OR XOR
AND AND AND AND AND
OR
ANDAND AND AND AND AND
OR
Sync1 Close Perm
Sync1 Live Bus
Sync1 Live Line
Sync1 Dead Bus
Sync 1 Dead Line
MAX FREQ HYSTERESES:
TO:
Autoreclose
Undervoltage restoration
Underfrequency restoration
Manual local/remote closing
TO:
Transfer Scheme
Bus (Line) voltage
Associated setpoints from
System/ Voltage Sensing /
Phase VT connection
Line (Bus) voltage
Associated setpoints from
System/Voltage Sensing /
Aux VT connection
Transfer Initiate
from Tie-Breaker Transfer scheme
from Breaker State Detection
BKR 1 Disconnected
892754A1.cdr
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