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1.8 PROTECTION SCHEMES
1
C C
(RCVR1)
101
+
[1 RCVR]
C C
(RCVR2)
[2 RCVRS]
Setting 1202
P H A S E
DISTANCE
110
G R O U N D
DISTANCE
G R O U N D
TRIP
DIRECTIONAL
O V E R -
B L O C K
C U R R E N T
R E M O T E
O P E N
P H A S E
DISTANCE
1
G R O U N D
DISTANCE
TL3P
P H A S E
C
DISTANCE
0
T L 3 G
C
G R O U D N D
DISTANCE
D
P H A S E
DISTANCE
T L 4 G
D
G R O U N D
DISTANCE
P H A S E
50P
B A C K U P
5 0 G
G R O U N D
B A C K U P
5 1 G
O V E R -
IT
C U R R E N T
SUPERVISION
IB
LINE PICKUP
FAULT
D E T E C T O R
V 1 D E T E C T O R
3
V1L
4
D E T E C T O R
PT FUSE FAILURE
DETECT LOGIC
OUT-OF-STEP
BLOCKING LOGIC
1-34
RECEIVER
R C V R
W I
DEBOUNCE
DETECTOR
TL16
80
102
G
405
8
80
G = 8 - 80
TL11
O S B
R E F
505
B = 0.2- 3.0 SEC
TL2P
B
0
R E F
Setting
2 0 5
2
407
R E F
T L 2 G
B
25
0
(Zone 2) TL24
8
103
2
103
25
B L O C K Z O N E 1
Setting 110
(Zone 3)
11
0
C = 0.1 - 10 sec
TL4P
0
(Zone 4)
12
0
D = 0.1 - 10 sec
28
Supervise Zones 1, 2, and 3
Supervise Zone 4
TL30
S I N G P T R I P
50
0
305
305
O P E N P O L E
306
306
F F B
Setting 714
B L O C K S S E L E C T E D P H A S E
O S B
A N D G R O U N D Z O N E
Settings 1601
FUNCTIONS DURING OUT-
to 1607
OF-STEP CONDITION
Figure 1–18: HYBRID LOGIC DIAGRAM
ALPS Advanced Line Protection System
TL26
F
0
F = 0 - 50
W E A K I N F E E D
TRIP PERMISSION
Setting
1205
R C V R
408
4 0 7
408
407
TL1
F = 1 - 50
F
3
50
4
508
X
301
302
13
Setting 714
TL25
25
503
20
X
X = 30 - 300
W I
1 PRODUCT DESCRIPTION
TL27
P
10
3
F F B
Setting 714
205
404
O S B
B L O C K Z O N E 1
Setting 110
O S B A L L
13
F F B
(CNFTRP)
C O N F I G U R A B L E
TRIP
35
37
35
GE Power Management
204
K E Y
P E R M I S S I V E
C H A N N E L
TRIP
P E R M I S S I O N
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