CBOPEN
STV_AG
STV_BG
STV_CG
100ms
AND
ECHOL - cont.
TRWEI
WEI = Echo&Trip
AND
AND
OR
OR
AND
TRWEI_A
ZCWSPSCH_Tripping_pa
rt_of_the_WEI_logic_simp
lified_diagram=ANSI1000
0261=1=en=Original.vsd
TRWEI_B
TRWEI_C
0
15ms
0
15ms
0
15ms
0
ANSI10000261 V2 EN
Figure 241:
Tripping part of the WEI logic, simplified diagram
12.3.7
Technical data
Table 346:
ZCWSPSCH (85) Technical data
Function
Range or value
Accuracy
Operating mode of WEI logic
Disablee
Echo
Echo & Trip
-
Detection level, phase-to-phase
and phase-to-neutral voltage
(10-90)% of
VBase
± 0.5% of V
n
Reset ratio
<105%
-
Operate time for current reversal
logic
(0.000-60.000) s
± 0.5% ± 10 ms
Delay time for current reversal
(0.000-60.000) s
± 0.5% ± 10 ms
Coordination time for weak-end
infeed logic
(0.000-60.000) s
± 0.5% ± 10 ms
Section 12
1MRK 506 335-UUS A
Scheme communication
512
Technical manual
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