Schematisches Design Der Funktion Timeovervoltage - ABB RED670 Referenzhandbuch

Abschnitt 7
Spannungsschutz
388
UL1 Comparator
UL1 > U1>
UL2 Comparator
UL2 > U1>
UL3 Comparator
UL3 > U1>
MaxVoltSelect
or
Comparator
UL1 > U2>
Comparator
UL2 > U2>
Comparator
UL3 > U2>
MaxVoltSelect
or
IEC05000013-WMF V1 DE
Abb. 197:

Schematisches Design der Funktion TimeOverVoltage

Phase 1
Voltage Phase
Selector
OpMode1
Phase 2
1 out of 3
2 outof 3
Start
Phase 3
3 out of 3
&
Trip
Output
Logic
START
Step 1
Time integrator
t1
TRIP
tReset1
ResetTypeCrv1
Phase 1
Voltage Phase
Selector
OpMode2 Phase 2
1 out of 3
2 outof 3
Start
Phase 3
3 out of 3
&
Trip
Output
Logic
START
Step 2
Time integrator
t2
TRIP
tReset2
ResetTypeCrv2
1MRK 505 183-UDE B
ST1L1
ST1L2
ST1L3
ST1
OR
TR1L1
TR1L2
TR1L3
TR1
OR
ST2L1
ST2L2
ST2L3
ST2
OR
TR2L1
TR2L2
TR2L3
TR2
OR
OR
TRIP
OR
en05000013.vsd
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