GE 850 - Page 558

8–86 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
AUTORECLOSE CHAPTER 8: CONTROL
Figure 8-34: Autoreclose - AR1 Setup logic diagram - “PAGE 2”
89$.cdr
AR1 Shot Count
=MAX
AR1 Close AR1 Breaker is closed AR1 Initiate
AR1 Reset from LO AR1 LO
}
AND
AND
SHOT CNT= 1
AR1 SHOT COUNTER
SHOT CNT= 2 SHOT CNT= 4 SHOT CNT= 3
INCREMENT
SHOT
COUNTER
SHOT CNT= 0
RESET SHOT
COUNTER
FLEXLOGIC OPERAND
AR1 CLOSE
AR1
LATCH
R S
OR
SETPOINTS
AR1 RESET TIME:
0
OR
OR
100 ms
OR
FLEXLOGIC OPERANDS
AR1 Shot Cnt 4 AR1 Shot Cnt 3 AR1 Shot Cnt 2 AR1 Shot Cnt 1 AR1 Shot Cnt 0
OR
AND AND AND AND
ANDANDAND
OR OR OR
SETPOINTS
AR1 MAXIMUM NUMBER SHOTS: MAX = 1 MAX = 2 MAX = 3 MAX = 4
SETPOINTS
AR1 REDUCE MAX TO 1: OFF = 0
SETPOINTS
AR1 REDUCE MAX TO 2: OFF = 0
SETPOINTS
AR1 REDUCE MAX TO 3: OFF = 0
STATUS
AUTORECLOSE 1
SHOT NUMBER IN EFFECT 0 (1,2,3,4)
SHOTS REMAINING 4 (0,1,2,3)
TOTAL SHOT COUNT
}
To Page 1
From
Page 1
OR OR OR
OR
AR1 coordinating
From Page 5
OUTPUT # 2 CLOSE
AR1 CLOSE
To Page 5
To Page 3
AR1 close
}
From
Page 4
AR1 SHOTS REDUCED TO 1 AR1 SHOTS REDUCED TO 2 AR1 SHOTS REDUCED TO 3
AR1 SHOTS REDUCED TO LO
}
To
Page 4
AR1 MAX NUMBER OF SHOTS = 1 AR1 MAX NUMBER OF SHOTS = 2 AR 1MAX NUMBER OF SHOTS = 3
PAGE 2 (AR1 SETUP)
T
RST
RESET
DOMINANT
To
TOC Pickup Raise, IOC
Blocking and Setting
Group Change
AND
AR1 SYNC SUPERV:
SETPOINTS
Bypass
From Synchrocheck 1
Sync1 Close Perm
OR
Sync1 Close Perm
AND