Sel 411L - Table 3.76 Ground Directional Element Enables

P.3.145
Date Code 20151029 Protection Manual SEL-411L Relay
Protection Functions
Ground Directional Element
You can set ORDER with any combination of Q, V, and I. The listed order of
these directional elements determines the priority that these elements operate
to provide the ground directional element.
Set E32
:= Y to edit the ground directional element settings. If you set E32 := Y
the relay hides certain relay settings depending on the setting ORDER.
If ORDER does not contain Q, the relay hides the Z2F, Z2R, a2, and k2
settings. If ORDER does not contain V, the relay hides the Z0F and Z0R
settings. If ORDER contains only Q, the relay hides settings a0, E32IV, Z0F,
and Z0R.
E32IV
SELOGIC control equation setting E32IV must be asserted to enable the zero-
sequence voltage-polarized or zero-sequence current-polarized directional
elements. This provides directional control of the ground-distance elements
and directional residual ground overcurrent elements.
Directional Element
Enables
The Relay Word bits shown in Table 3.76 indicate when the relay has enabled
the ground directional element.
Figure 3.84 and Figure 3.85 correspond to Table 3.76.
Table 3.76 Ground Directional Element Enables
Name Description
32QE Negative-sequence voltage-polarized directional element enable—phase faults
32QGE Negative-sequence voltage-polarized directional element enable
—ground
faults
32VE Zero-sequence voltage-polarized directional element enable
—ground faults
32IE Zero-sequence current-polarized directional element enable
—ground faults