1. PUFW=1 when operating quantity magnitude Iop x cos(φ -
AngleRCA
) is bigger
than setting parameter
IDirPU
and directional supervision element detects fault in
forward direction.
2. PUREV=1 when operating quantity magnitude Iop x cos(φ -
AngleRCA
) is bigger
than 60% of setting parameter
IDirPU
and directional supervision element detects
fault in reverse direction.
These signals shall be used for communication based ground-fault teleprotection
communication schemes (permissive or blocking).
Simplified logic diagram for directional supervision element with integrated directional
comparison step is shown in figure
X
a
a>b
b
IDirPU
polMethod=Voltage
polMethod=Dual
OR
FORWARD_Int
REVERSE_Int
BLOCK
STAGE1_DIR_Int
0.6
X
0.4
AND
STAGE3_DIR_Int
STAGE4_DIR_Int
STAGE2_DIR_Int
OR
PUREV
VPolMin
IPolMin
AngleRCA
T
F
0.0
X
T
F
RNPol
XNPol
0.0
D
ire
ct
io
n
al
C
ha
ra
ct
e
ris
tic
FWD
RVS
AND
AND
AND
PUFW
FORWARD_Int
REVERSE_Int
AND
ANSI07000067-4-en.vsd
|
|
VPol
VIPol
I3PDIR
VTPol
IopDir
Complex
Number
a
a>b
b
IPol
T
F
0.0
polMethod=Current
OR
ANSI07000067 V4 EN
Figure 40:
Simplified logic diagram for directional supervision element with integrated directional comparison step
1MRK 505 277-UUS C
Section 7
Current protection
99
Technical Manual
Summary of Contents for REB650
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