GE 845 - Page 434

4–306 845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CONTROL CHAPTER 4: SETPOINTS
Figure 4-128: Local Control for breakers
894200A1.cdr
SETPOINT
Breaker Local Open
Off=0, Pushbutton # ON =1
SETPOINT
Local Mode
Off = 0
FLEXLOGIC OPERAND
Local Mode ON
Local Mode OFF
LM
Shows on display banner
AND
FLEXLOGIC OPERAND
BKR1 Local Open
FLEXLOGIC OPERAND
Tag ON
FLEXLOGIC OPERAND
BKR1 Loc Blk Open By
from Tagging logic
AND
FLEXLOGIC OPERAND
BKR1 Loc Blk Open
AND
FLEXLOGIC OPERAND
BKR1 Local Close
FLEXLOGIC OPERAND
BKR1 Loc Blk Cls By
AND
FLEXLOGIC OPERAND
BKR1 Loc Blk Close
FLEXLOGIC OPERAND
BKR1 Opened
FLEXLOGIC OPERAND
BKR1 Closed
AND
SETPOINT
Breaker Local Close
Off=0, Pushbutton # ON =1
AND
PB “BKR Local Open”
PB “BKR Local Close”
from Breaker status detection logic
from Breaker status detection logic
FLEXLOGIC OPERAND
BKR1 Selected
from Bkr/Sw selection logic
AND
FLEXLOGIC OPERAND
Block ON
from Local Block logic
FLEXLOGIC OPERAND
Bypass Block ON
From Local Bypass Block logic
* The logic shows the local breaker control
for Breaker 1 with Enabled and Disabled
Select Before Operate setpoint.
FLEXLOGIC OPERAND
BKR1 Rem Blk Open By
FLEXLOGIC OPERAND
BKR1 Rem Blk Open
AND
FLEXLOGIC OPERAND
BKR1 Rem Blk Cls By
FLEXLOGIC OPERAND
BKR1 Rem Blk Close
AND
from Breaker Control logic
from Breaker Control logic
OPEN
command
Relay ( Ready = 1)
BKR 1: Trip Relay Select
Setpoints/System/
Breakers/BKR1:
To Selected BKR1
Trip Output
BKR 1: Close Relay Select
To Selected BKR 1
Close Output
AND
Setpoints/System/
Breakers/BKR1:
AN D
(From Synchrocheck 1)
Sync 1 BKR Cls Perm
OR
SETPOINTS
CLOSE SYNCHROCHECK
SPVN BKR 1
Bypass
Sync 1 Cls Perm
PB “Local Start”
869
PB “Local Stop”
869
850, 845, 889
AND AND
AND AND
SETTING
Select Before Operate
Disabled = 0, Enabled = 1
AND
OR
AND
OR
AND
FLEXLOGIC OPERAND
SBO Enabled