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350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
S6 MONITORING
CHAPTER 6: SETPOINTS
Figure 6-77: Reactive Power Demand logic diagram
LED
:PICKUP
Reactive Power Inputs
AND
REACTIVE PWR
D
M
D
FUNCTION
:
Disabled
Alarm
Latched
Alarm
OR
SETPOINTS
REACTIVE PWR DMD MEASUREMENT
TYPE
:
Calculate Reactive Power Demand
SETPOINTS
REACTIVE PWR DMD REACTIVE POWER PICKUP
:
|Q
Demand
|
≥
PICKUP
RUN
ReactvPwr Dmd PKP
AND
AND
Command
RESET
OR
LED
:ALARM
REACTIVE PWR DMD THERMAL
90
%
RESPONSE
TIME
:
REACTIVE PWR DMD TIME INTER
VA
L
:
Three
-Phase
Reactive Power
(Q
)
SETPOINTS
FlexLogic Operands
S
LA
TCH
Set
-
Dominant R
SETPOINT
Do Not Operate, Operate
OUTPUT
RELA
Y X
SETPOINTS
BLOCK
1:
Of
f=
0
BLOCK
2:
Of
f=
0
BLOCK
3:
Of
f=
0
OR
898848A1.CDR