CHAPTER 8: CONTROL
AUTORECLOSE
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
8–97
Figure 8-38: Autoreclose - AR1 Zone Coordination - “PAGE 5”
892766A2.cd
r
SETPOINTS
AR
1
ZC
FUNCTION
:
Disabled
=
0
Enabled
Phase B fault current
Phase C fault current
Phase
A
fault current
SETPOINTS
AR
1
ZC
PH CURRENT PKP
:
Ia
>
=
I
PKP
RUN
Ib
>=
I
PKP
RUN
Ic
>
=
I
PKP
RUN
In
>=
I
PKP
RUN
SETPOINTS
AR
1
ZC
NTRL
CURRENT PKP
:
AND
OR
AND
SETPOINTS
AR
1
ZC PICKUP
/
DROPOUT TIME
:
AND
AND
AND
AND
}
From
Page
1
AR
1
Breaker is closed
AR
1
Initiate
From Page
2
AR
1
Shot Count
=
MAX
AND
AR
1
Coordinating lockout
AR
1
Coordinating
T
o Page
2
T
o Page
1
FLEXLOGIC OPERAND
AR
1
Coordinating
P
AGE
5
(A
R
1
ZONE COORDINA
TION
)
Tp
Td
Tp
Td
Tp
Td
Tp
Td
Tp
=
AR
1
ZC PICKUP
TIME
Td
=
AR
1
ZC
DROPO
U
T
TIME
SETPOINTS
SIGNAL
INPUT
:
CT Bank
1
-
J1
3
Io
(Residual
)
Summary of Contents for Multilin 850
Page 10: ...VIII 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL ...
Page 135: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 41 ...
Page 151: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 57 ...
Page 153: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 59 ...
Page 439: ...CHAPTER 7 MONITORING FUNCTIONS 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 7 19 ...
Page 644: ...11 20 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL FLEXELEMENTS CHAPTER 11 METERING ...