ABB REG670 Commissioning Manual page 257

1MRK 502 073-UUS A
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
1. Apply voltages V-Line (for example) = 80% GblBaseSelLine and V-Bus = 80%
GblBaseSelBusGblBaseSelBus with the same phase-angle and frequency.
2. Check that the AUTOSYOK and MANSYOK outputs are activated.
3. The test can be repeated with different voltage values to verify that the function
trips within the set VDiffSC. Check with both V-Line and V-Bus respectively
lower than the other.
4. Increase the V-Bus to 110% GblBaseSelBus, and the V-Line = 90%
GblBaseSelLine and also the opposite condition.
5. Check that the two outputs for manual and auto synchronism are not activated.
Testing the phase angle difference
The phase angle differences PhaseDiffM and PhaseDiffA respectively are set to their
final settings and the test should verify that operation is achieved when the phase angle
difference is lower than this value both leading and lagging.
Test with no voltage difference.
1. Apply voltages V-Line (for example) = 100% GblBaseSelLine and V-Bus =
100% GblBaseSelBus, with a phase difference equal to 0 degrees and a frequency
difference lower than FreqDiffA and FreqDiffM.
2. Check that the AUTOSYOK and MANSYOK outputs are activated.
The test can be repeated with other phase difference values to verify that the
function trips for values lower than the set ones, PhaseDiffM and PhaseDiffA. By
changing the phase angle on the voltage connected to V-Bus, between ± dφ
degrees, the user can check that the two outputs are activated for a phase
difference lower than the set value. It should not trip for other values. See
figure 64.
Testing functionality by secondary injection
Section 13
M2377-215 v8
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