Technical Data - ABB RED650 Technical Manual

1MRK 505 394-UEN A
9.2.8
Line differential protection RED650 2.2 IEC
Technical manual
UL1 Comparator
UL1 > U1>
UL2 Comparator
UL2 > U1>
UL3 Comparator
UL3 > U1>
MaxVoltSelect
Comparator
UL1 > U2>
Comparator
UL2 > U2>
Comparator
UL3 > U2>
MaxVoltSelect
IEC05000013-WMF V2 EN-US
Figure 118: Schematic design of Two step overvoltage protection OV2PTOV

Technical data

Table 128: OV2PTOV technical data
Function
Operate voltage, step 1 and 2
Absolute hysteresis
Inverse time characteristics for steps 1
and 2, see table 674
Table continues on next page
Phase 1
Voltage Phase
Selector
OpMode1
Phase 2
1 out of 3
Start
2 out of 3
t1
Phase 3
3 out of 3
t1Reset
&
Trip
Output
START
Logic
Step 1
Time integrator
TRIP
tIreset1
ResetTypeCrv1
Phase 1
Voltage Phase
Selector
OpMode2 Phase 2
1 out of 3
Start
2 out of 3
t2
Phase 3
3 out of 3
t2Reset
&
Trip
Output
START
Logic
Step 2
Time integrator
TRIP
tIreset2
ResetTypeCrv2
Range or value
UBase
(1.0-200.0)% of
(0.0–50.0)% of UBase
-
Section 9
Voltage protection
ST1L1
ST1L2
ST1L3
ST1
OR
TR1L1
TR1L2
TR1L3
TR1
OR
ST2L1
ST2L2
ST2L3
ST2
OR
TR2L1
TR2L2
TR2L3
TR2
OR
OR
TRIP
OR
IEC05000013-2-en.vsd
IP13013-1 v1
M13304-1 v14
Accuracy
±0.5% of U at U ≤ U
r
±0.5% of U at U > U
r
±0.5% of U at U ≤ U
r
±0.5% of U at U > U
r
See table 674
253
r
r