5.98
SEL-421 Relay
Instruction Manual
Date Code 20171021
Protection Functions
Instantaneous Line Overcurrent Elements
Figure 5.75
Residual Ground Instantaneous/Directional Overcurrent Elements
67G1D
0
—
+
50G1
67G1
67G1T
IGL
50G1P
(Setting)
67G1TC
(SEL
OGIC
Setting)
32GF
(Relay
Word Bit)
Relay
Word
Bits
67G2D
0
—
+
50G2
67G2
67G2T
50G2P
(Setting)
67G2TC
(SEL
OGIC
Setting)
32GF
(Relay
Word Bit)
67G3D
0
—
+
50G3
67G3
67G3T
50G3P
(Setting)
DIR3 := F
(Setting)
67G3TC
(SEL
OGIC
Setting
)
32GF
(Relay
Word Bit)
32GR
(Relay
Word Bit)
67G4D
0
—
+
50G4
67G4
67G4T
50G4P
(Setting)
DIR4 := F
(Setting)
67G4TC
(SEL
OGIC
Setting)
32GF
(Relay
Word Bit)
32GR
(Relay
Word Bit)
Summary of Contents for SEL-421-4
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