Schweitzer Engineering Laboratories SEL-311C - Figure 4.7 Internal Enables (32 VE and 32 IE) Logic for Zero-Sequence

4.12
SEL-311C Relay Instruction Manual Date Code 20060320
Loss-of-Potential, CCVT Transient Detection, Load-Encroachment, and Directional Element Logic
Directional Control for Ground Distance and Residual Ground Overcurrent Elements
q To Figure 4.10; w to Figure 4.11; e to Figure 4.6; r to Figure 4.8.
Figure 4.7 Internal Enables (32VE and 32IE) Logic for Zero-Sequence
Voltage-Polarized and Channel IP Current-Polarized Directional Elements
32IE
32VE
e and r
w
q
q
and
w
50GF
50GR
50GRP
(I
G
= 3I
0
)
50GFP
Setting
Relay
Word
Bits
Settings
a0 • |I
1
|
|I
G
/3|
|I
G
|
(residual)
I
NOM
• 0.05
|I
P
|
E32IV
"V" listed in
setting ORDER
"I" listed in
setting ORDER
SEL
OGIC
Setting
SEL
OGIC enable
setting
enable
setting enable