GE LPS-O Instruction Manual page 35

1 PRODUCT DESCRIPTION
P H A S E
D I S T A N C E
B = 0.2- 3.0 SEC
P H A S E
D I S T A N C E
R E M O T E
O P E N
TL3P
C
P H A S E
D I S T A N C E
0
C = 0 . 4 - 6 S E C
TL4P
D
P H A S E
D I S T A N C E
0
D = 0 . 4 - 6 S E C
P H A S E
50P
B A C K U P
2 8
5 0 G
G R O U N D
B A C K U P
5 1 G
L I N E P I C K U P
F A U L T D E T E C T O R
IT
O V E R -
C U R R E N T
S U P E R V I S I O N S U P E R V I S E
IB
Z O N E 4
O S B
O U T O F S T E P
S E T T #
B L O C K I N G L O G I C
1601-1607
GE Power Management
4
O S B
TL2P
B
0
( Z O N E 2 )
8
1 0
O S B
( Z O N E 3 )
1 3
1 1
O S B
( Z O N E 4 )
1 1
O S B
Figure 1–8: STEP DISTANCE LOGIC DIAGRAM
LPS-O Line Protection System
1.8 PROTECTION SCHEME DESCRIPTIONS
O S B A L L
1 3
F F B
S E T T # 7 0 5
7
6
1
( C N F T R P )
C O N F I G U R A B L E
T R I P B U S
(TRIP)
4 4
T R I P
7
B U S
STP_DST3.VSD
1-
21