Schweitzer Engineering Laboratories SEL-421-4 - Figure 5.74 Phase Instantaneous;Definite-Time Overcurrent Elements

5.97
Date Code 20171021 Instruction Manual SEL-421 Relay
Protection Functions
Instantaneous Line Overcurrent Elements
Figure 5.74 Phase Instantaneous/Definite-Time Overcurrent Elements
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+
—
+
—
+
67P1D
67P1
50P1
IAL
IBL
ICL
67P1TC
(SEL
OGIC
Setting)
50P1P
(Setting)
67P1T
0
—
+
—
+
—
+
67P2D
67P2
50P2
67P2TC
(SEL
OGIC
Setting)
50P2P
(Setting)
67P2T
0
—
+
—
+
—
+
67P3D
67P3
50P3
67P3TC
(SEL
OGIC
Setting)
50P3P
(Setting)
67P3T
67P4T
0
—
+
—
+
—
+
67P4D
67P4
50P4
67P4TC
(SEL
OGIC
Setting)
50P4P
(Setting)
0
Relay
Word
Bits