ABB REG650 Commissioning Manual page 111

Relion 650 series generator protection
Hide thumbs Also See for REG650:
Table of Contents

Advertisement

1MRK 502 049-UEN A
Commissioning manual
1.
Apply voltages U-Line (for example) = 80% GblBaseSelLine and U-Bus = 80%
GblBaseSelBus
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
operates within the set UDiffSC. Check with both U-Line and U-Bus
respectively lower than the other.
4.
Increase the U-Bus to 110% GblBaseSelBus, and the U-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 U-Line (for example) = 100% GblBaseSelLine and U-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 operates for values lower than the set ones, PhaseDiffM and
PhaseDiffA. By changing the phase angle on the voltage connected to U-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 operate for other values.
See figure 22.
No operation
IEC05000551 V1 EN
Figure 22:
Test of phase difference
3.
Change the phase angle between +dφ and -dφ and verify that the two outputs are
activated for phase differences between these values but not for phase
differences outside, see figure 22.
U-Bus
+dj
U-Line operation
-dj
U-Bus
en05000551.vsd
Section 6
Testing functionality
103

Advertisement

Table of Contents
loading

Table of Contents