GE Power Management
ALPS Advanced Line Protection System
1-29
1 PRODUCT DESCRIPTION
1.8 PROTECTION SCHEMES
1
Figure 1–14: POTT WITH BLOCKING FUNCTIONS (POTT2)
F A U L T
D E T E C T O R
L I N E P I C K U P
(CANCL)
(RI)
3
4
F = 1 - 50
TL1
F
50
25
X
B
0
3
407
8
301
508
302
K E Y
PERMISSIVE
C H A N N E L
(Zone 2)
TL24
2
C C
(RCVR2)
TL2G
B
0
R E F
R E F
TL2P
P H A S E
D I S T A N C E
G R O U N D
D I S T A N C E
G R O U N D
D I R E C T I O N A L
O V E R -
C U R R E N T
R E M O T E
O P E N
P H A S E
D I S T A N C E
G R O U N D
D I S T A N C E
110
G R O U N D
B A C K U P
O V E R -
C U R R E N T
S U P E R V I S I O N
P H A S E
D I S T A N C E
G R O U N D
D I S T A N C E
P H A S E
D I S T A N C E
G R O U N D
D I S T A N C E
P H A S E
B A C K U P
50P
P
X
TL25
X = 30 - 300
O S B A L L
FFB
Setting 714
C
0
C
0
D
0
D
0
TL4G
TL4P
TL3G
TL3P
13
503
20
28
12
BLOCK ZONE 1
Setting 110
1
103
2
25
11
C = 0.4 to 6 sec.
D = 0.4 to 6 sec.
(Zone 4)
(Zone 3)
REVERSIBLE
ZONE 4
ZONE 3
ZONE 1
OVERREACHING ZONE /
ZONE 2
13
Protection
Setting 1202
(KEY1)
(KEY2)
P r o t e c t i o n
S e t t i n g 2 0 5
POTT2.VSD
(CNFTRP)
C O N F I G U R A B L E
TRIP BUS
8
R E C L O S E C A N C E L
RECLOSE INITIATE
B L O C K
R E C L O S I N G
Settings 801 - 810
9
9
(TRIP)
TRIP
B U S
44
7
7
6
103
BLOCK ZONE 1
Setting 110
Supervise Zone 4
[ 2 R C V R S ]
[ 1 R C V R ]
21
C C
(RCVR1)
204
404
O S B
205
E
E
E
E
TL5
TL6
E = 0 - 200
52-1
b
52-2
b
[ 2 B R E A K E R S ]
[ 1 B R E A K E R ]
General
Setting
105
C C
C C
5
5
FFB
Setting 714
FFB
Setting 714
P T F U S E
F A I L U R E
D E T E C T I O N
L O G I C
O U T O F S T E P
B L O C K I N G
L O G I C
O S B
Settings 1601
to 1607
B L O C K S S E L E C T E D
P H A S E A N D G R O U N D
Z O N E F U N C T I O N S
D U R I N G O U T O F S T E P
C O N D I T I O N
B = 0.2 to
3.0 sec.
T R I P
B L O C K
50G
51G