Technical Data - ABB RED650 Technical Manual

Section 9
Voltage protection
9.1.8
240
UL1
Comparator
UL1 < U1<
UL2
Comparator
UL2 < U1<
Comparator
UL3
UL3 < U1<
MinVoltSelector
Comparator
UL1 < U2<
Comparator
UL2 < U2<
Comparator
UL3 < U2<
MinVoltSelector
IEC05000834 V2 EN-US
Figure 110: Schematic design of Two step undervoltage protection UV2PTUV

Technical data

Table 121: UV2PTUV technical data
Function
Operate voltage, low and high step
Absolute hysteresis
Internal blocking level, step 1 and step 2
Table continues on next page
Voltage Phase
Phase 1
Selector
OpMode1
Phase 2
1 out of 3
2 out of 3
Start t1
3 out of 3
Phase 3
t1Reset
IntBlkStVal1
&
Trip
Output
START
Logic
Step 1
Time integrator
TRIP
tIReset1
ResetTypeCrv1
Voltage Phase
Phase 1
Selector
OpMode2
Phase 2
1 out of 3
2 out of 3
Start t2
3 out of 3
Phase 3 t2Reset
IntBlkStVal2
&
Trip
Output
Logic
START
Step 2
Time integrator
TRIP
tIReset2
ResetTypeCrv2
Range or value
UBase
(1.0–100.0)% of
UBase
(0.0–50.0)% of
UBase
(1–50)% of
Line differential protection RED650 2.2 IEC
1MRK 505 394-UEN A
ST1L1
ST1L2
ST1L3
ST1
OR
TR1L1
TR1L2
TR1L3
TR1
OR
ST2L1
ST2L2
ST2L3
ST2
OR
TR2L1
TR2L2
TR2L3
TR2
OR
START
OR
TRIP
OR
IEC05000834-2-en.vsd
IP13001-1 v1
M13290-1 v15
Accuracy
±0.5% of U
r
±0.5% of U
r
±0.5% of U
r
Technical manual