4.120
SEL-700G Relay
Instruction Manual
Date Code 20170814
Protection and Logic Functions
Group Settings (SET Command)
Figure 4.88
Routing of Directional Elements to Negative-Sequence and
Phase Overcurrent Elements
Figure 4.89
Direction Forward/Reverse Logic for Negative-Sequence
Overcurrent Elements
q
From Figure 4.120
w
From Figure 4.86
e
From Figure 4.87
r
To Figure 4.89
t
to Figure 4.90
q
From Figure 4.88
w
From Figure 4.59
e
From Figure 4.54
LOP
FDIRQ
RDIRQ
Relay
Word
Bits
DIRPF
(Forward
DIRQF
(Forward)
DIRPR
(Reverse)
DIRQR
(Reverse)
Setting
EFWDLOP = Y
Loss-of-
Potential
FDIRP
RDIRP
1
2
3
4
5
Directional
Control
Level
Direction
Settings
DIRQF
DIR1 = F
DIR1 = N
Relay
Word
Bit
Relay
Word
Bit
to Negative-
Sequence
Time-0vercurrent
Element
to Negative-
Sequence
Instantaneous/
Definite-TIme
Overcurrent
Elements
Forward
Forward
DIRQR
Reverse
Level 1
DIR1 = R
Reverse
DIR2 = F
DIR2 = N
Forward
Level 2
DIR2 = R
Reverse
1
1
2
3
QY1DIR
QY1D2R
Summary of Contents for SEL-700G Series
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