Testing The Energizing Check - ABB REG670 2.0 IEC Commissioning Manual

1MRK502053-UEN B
12.10.1.3
Generator protection REG670 2.0 IEC
Commissioning manual
Testing functionality by secondary injection
1. Apply voltages U-Line equal to 100% GblBaseSelLine and U-Bus equal to
100% GblBaseSelBus, with a frequency difference equal to 0 mHz and a phase
difference lower than the set value.
2. Check that the AUTOSYOK and MANSYOK outputs are activated.
3. Apply voltage to the U-Line equal to 100% GblBaseSelLine with a frequency
equal to 50 Hz and voltage U-Bus equal to 100% GblBaseSelBus, with a
frequency outside the set limit.
4. Check that the two outputs are not activated. The test can be repeated with
different frequency values to verify that the function operates for values lower
than the set ones. If a modern test set is used, the frequency can be changed
continuously.
Testing the reference voltage
1. Use the same basic test connection as in figure 51.
The voltage difference between the voltage connected to U-Bus and U-Line
should be 0%, so that the AUTOSYOK and MANSYOK outputs are activated
first.
2. Change the U-Line voltage connection to U-Line2 without changing the setting
on the local HMI. Check that the two outputs are not activated.

Testing the energizing check

During the test of the energizing check function for a single bay arrangement, these
voltage inputs are used:
U-Line UL1, UL2 or UL3 line1 voltage inputs on the IED
U-Bus Bus voltage input on the IED
General
When testing the energizing check function for the applicable bus, arrangement shall
be done for the energizing check functions. The voltage is selected by activation of
different inputs in the voltage selection logic.
Live voltage level is fixed to 80% UBase and dead voltage level to fixed 40% UBase.
The test shall be performed according to the settings for the station. Test the
alternatives below that are applicable.
Testing the dead line live bus (DLLB)
The test should verify that the energizing check function operates for a low voltage on
the U-Line and for a high voltage on the U-Bus. This corresponds to the energizing of
a dead line to a live bus.
Section 12
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