GE ALPS - Page 40

1-28 ALPS Advanced Line Protection System
GE Power Management
1.8 PROTECTION SCHEMES 1 PRODUCT DESCRIPTION
1
Figure 1–13: PERMISSIVE OVERREACH TRANSFER TRIP (POTT1)
FAULT
DETECTOR
LINE PICKUP
(CANCL)
(RI)
3
4
F = 1-50
TL1
F
50
B
0
3
407
8
10
KEY
PERMISSIVE
CHANNEL
(Zone 2)
2
[2 RCVRS]
[1 RCVR]
21
CC
(RCVR1)
CC
(RCVR2)
TL2G
B
0
REF
REF
B = 0.2- 3.0 SEC
TL2P
PHASE
DISTANCE
GROUND
DISTANCE
GROUND
DIRECTIONAL
OVER-
CURRENT
TRIP
BLOCK
REMOTE
OPEN
PHASE
DISTANCE
GROUND
DISTANCE
GROUND
BACKUP
50G
51G
OVER-
CURRENT
SUPERVISION
PHASE
DISTANCE
GROUND
DISTANCE
PHASE
DISTANCE
GROUND
DISTANCE
PHASE
BACKUP
50P
OSBALL
FFB
Setting 714
C
0
C
0
D
0
D
0
TL4G
TL4P
TL3G
TL3P
13
28
12
11
OSB
1
4
25
11
11
C = 0.4 - 6 sec
D = 0.4 - 6 sec
(Zone 4)
OSB
OSB
(Zone 3)
REVERSIBLE
ZONE 4
ZONE 3
ZONE 1
OVERREACHING ZONE /
ZONE 2
13
OSB
OSB
Setting 1202
(KEY1)
(KEY2)
Setting
205
POTT1.VSD
OUT OF STEP
BLOCKING
LOGIC
OSB – Settings 1601 to 1607
(CNFTRP)
CONFIGURABLE
TRIP BUS
8
RECLOSE CANCEL
RECLOSE INITIATE
BLOCK RECLOSING
Settings 801 to 810
9
(TRI
TRI
BU
S
44
7
7
6
Supervise Zone 4
E
E
TL5
TL6
E = 0 to 200
52-1
b
52-2
b
[2 BREAKERS]
[1BREAKER]
General
Setting
105
CC
CC
5
A
A
TL4
A = 0 - 50
5
E
E
9