hi
u
lo
y
MIN
MAX
INx>_used
INx>Max
INx>
INx>Min
IEC17000017-1-en.vsdx
IEC17000017 V1 EN-US
Figure 42:
Logic for limitation of used operation current value
Simplified logic diagram for one residual overcurrent step is shown in Figure
X
Inverse
OR
|I
OP
|
STINx
TRINx
AND
T
F
HarmRestrainx=Off
INx>
BLKSTx
BLOCK
OR
2ndHarm_BLOCK_Int
INxMult
Characteristx=Inverse
Characteristx=DefTime
DirModex=Off
DirModex=Non-directional
DirModex=Forward
DirModex=Reverse
AND
AND
FORWARD_Int
REVERSE_Int
OR
OR
STEPx_DIR_Int
IEC10000008.vsd
X
T
F
a
b
a>b
b
a
a>b
IMinx
AND
BLKTR
AND
AND
tx
min
tx
AND
t
t
EMULTX
IEC10000008 V5 EN-US
Figure 43:
Simplified logic diagram for residual overcurrent step x, where x = step 1, 2, 3 or 4
The protection can be completely blocked from the binary input BLOCK. Output
signals for respective step, and STINx and TRINx, can be blocked from the binary
input BLKSTx. The trip signals from the function can be blocked from the binary
input BLKTR.
6.4.7.8
Directional supervision element with integrated directional
comparison function
M13941-179 v11
At least one of the four residual overcurrent steps shall be set as
directional in order to enable execution of the directional
Section 6
1MRK 505 384-UEN A
Current protection
118
Breaker protection REQ650 2.2 IEC
Technical manual
Содержание impreza 2017
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