Technical Data - ABB REL650 series Technical Manual

Section 12
Scheme communication
12.3.7
512
WEI = Echo&Trip
CBOPEN
STV_AG
STV_BG
AND
STV_CG
ANSI10000261 V2 EN
Figure 241: Tripping part of the WEI logic, simplified diagram

Technical data

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