P.3.179
Date Code 20151029 Protection Manual SEL-411L Relay
Protection Functions
Mho Ground-Distance Elements
Table 3.90 Mho Ground-Distance Element Settings
Name Description Range
Default
(5 A)
E21MG Mho phase distance protection N, 1 to 5 3
Mho Ground-Distance Element Reach
Z1MG Zone 1 () OFF, (0.25–320)/I
NOM
6.24
Z2MG Zone 2 () OFF, (0.25–320)/I
NOM
9.36
Z3MG Zone 3 () OFF, (0.25–320)/I
NOM
1.87
Z4MG Zone 4 () OFF, (0.25–320)/I
NOM
OFF
Z5MG Zone 5 () OFF, (0.25–320)/I
NOM
OFF
Zero-Sequence Compensation Factor
k0M1 Zone 1 ZSC factor magnitude AUTO, 0.000–10 0.726
k0A1 Zone 1 ZSC factor angle () –180.00 to +180 –3.69
k0M
a
a
Advanced Setting if EADVS := Y. If the Advanced Settings are not enabled (setting
EADVS := N), the relay hides the settings.
Forward Zones ZSC factor magnitude 0.000–10 0.726
k0A
a
Forward Zones ZSC factor angle () –180.00 to +180 –3.69
k0MR
a
Reverse Zones ZSC factor magnitude 0.000–10 0.726
k0AR
a
Reverse Zones ZSC factor angle () –180.00 to +180 –3.69
Table 3.91 Mho Ground-Distance Elements Relay Word Bits
Name Description
MAG1 Zone 1 A-phase mho ground-distance element
MBG1 Zone 1 B-phase mho ground-distance element
MCG1 Zone 1 C-phase mho ground-distance element
MAG2 Zone 2 A-phase mho ground-distance element
MBG2 Zone 2 B-phase mho ground-distance element
MCG2 Zone 2 C-phase mho ground-distance element
MAG3 Zone 3 A-phase mho ground-distance element
MBG3 Zone 3 B-phase mho ground-distance element
MCG3 Zone 3 C-phase mho ground-distance element
MAG4 Zone 4 A-phase mho ground-distance element
MBG4 Zone 4 B-phase mho ground-distance element
MCG4 Zone 4 C-phase mho ground-distance element
MAG5 Zone 5 A-phase mho ground-distance element
MBG5 Zone 5 B-phase mho ground-distance element
MCG5 Zone 5 C-phase mho ground-distance element
Z1G Zone 1 ground-distance element
Z2G Zone 2 ground-distance element
Z3G Zone 3 ground-distance element
Z4G Zone 4 ground-distance element
Z5G Zone 5 ground-distance element
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