3.12
SEL-351A Relay Instruction Manual Date Code 20080213
Overcurrent, Voltage, Synchronism Check, and Frequency Elements
Instantaneous/Definite-Time Overcurrent Elements
q From Figure 4.17.
w Not present in SEL-351A-1.
Figure 3.10 Levels 1 Through 4 Residual-Ground Instantaneous Overcurrent
Elements (With Directional Control and Definite-Time Elements in SEL-351A)
Figure 3.11 Levels 5 Through 6 Residual-Ground Instantaneous Overcurrent
Elements
67G1
50G1
67G1T
Relay
Word
Bits
67G1TC
SEL
OGIC
Setting
Enabled
Levels
67G1D
0
Directional Control
(asserted to logical 1
continuously if E32 = N)
SEL
OGIC
Torque Control
q
(Level 1)
Level 1
(Setting
E5OG
≥
1)
67G3
50G3
67G3T
67G3TC
SELOGIC
Setting
67G3D
0
Directional Control
(asserted to logical 1
continuously if E32 = N)
SEL
OGIC
Torque Control
Level 3
(Setting
E5OG ≥ 3)
67G4
50G4
67G4T
67G4TC
SELOGIC
Setting
67G4D
0
Directional Control
(asserted to logical 1
continuously if E32 = N)
SEL
OGIC
Torque Control
Level 4
(Setting
E5OG ≥ 4)
50G2
67G2
67G2T
67G2D
0
Directional Control
(asserted to logical 1
continuously if E32 = N)
SELOGIC
Torque Control
Level 2
(Setting
E5OG
≥
2)
67G2TC
SELOGIC
Setting
50G1P
I
G
Setting
q
(Level 3)
50G3P
Setting
q
(Level 4)
50G4P
Setting
q
(Level 2)
50G2P
Setting
(Residual)
I
G
(Residual)
I
G
(Residual)
I
G
(Residual)
w
w
w
w
w
w
w
w
w
w
w
w
5OG5
5OG6
Relay
Word
Bits
50G5P
50G6P
I
G
Settings
Enabled
Levels
(Residual)
Level 5
(Setting
E5OG ≥ 5)
Level 6
(Setting
E5OG = 6)
Courtesy of NationalSwitchgear.com