Schweitzer Engineering Laboratories SEL-311C - Figure 5.6 POTT Logic

5.16
SEL-311C Relay Instruction Manual Date Code 20060320
Trip and Target Logic
Weak-Infeed Logic and Settings
EKEY—Echo Key Permissive Trip
Permissive trip signal keyed by Echo logic (used in testing).
q From Figure 4.1; w from Figure 3.6; e from Figure 3.9; r from Figure 3.22; t from Figure 3.23; y from Figure 5.3;
u from Figure 5.5; i from Figure 5.1; o Figure 5.1.
Figure 5.6 POTT Logic
TRCOMM
(Setting)
ELOP = Y1
(Setting)
q LOP
w M3P
e Z3G
r 67G3
t 67Q3
y 3PO
EBLKD = OFF
(Setting)
OPO = 27
(Setting)
ETDPU = OFF
(Setting)
u PT
i TRIP
EWFC = Y
(Setting)
|VAB|
|VBC| |VCA|
27PPW
(Setting)
|3V0|
59NW
(Setting)
0
EBLKD
0
0
1/4 CYC
1/4 CYC
0
Z3RBD
0
0
ETDPU
0
EDURD
Reset
+
_
+
_
+
_ _
+
WFC ECTT To Trip Logic o EKEY KEY To Trip Logic o Z3RB
Relay
Word
Bits
Rising
Edge Detect
ETDPU + EDURD
+ 1 CYC
Relay
Word
Bits
(unless noted)