ABB REG670 2.0 IEC User Manual

UL1
UL2
UL3
UN
UL1
UL1
UL2
UL3
I
E
D
T
E
S
T
S
E
T
I
E
D
IEC07000107-1-en.vsd
UL2
UL3
UN
1
2
IEC07000107 V2 EN
Figure 48: Connection of the test set to the IED for test of U2 block level
where:
1 is three-phase voltage group1 (U1)
2 is three-phase voltage group2 (U2)
2. Apply voltage higher than the highest set value of UDTrip, U1Low and U2Low
to the U1 three-phase inputs and to one phase of the U2 inputs according to
figure 48.
The voltage differential START signal is set.
3. Decrease slowly the voltage in phase UL3 of the test set until the START signal
resets.
4. Check U2 blocking level by comparing the voltage level at reset with the set
undervoltage blocking U2Low.
12.6.5.2 Check of voltage differential trip and alarm levels
Procedure
1. Connect voltages to the IED according to valid connection diagram and
figure
49.
1MRK502053-UEN B Section 12
Testing functionality by secondary injection
Generator protection REG670 2.0 IEC 183
Commissioning manual

ABB REG670 2.0 IEC Specifications

General

Brand	ABB
Model	REG670 2.0 IEC
Category	Protection Device
Language	English