Completing The Test; Voltage Protection; Two Step Undervoltage Protection Uv2Ptuv; Verifying The Settings - ABB REB670 Commissioning Manual

Section 10
Testing functionality by secondary injection
10.4.10.2
10.5
10.5.1
10.5.1.1
112
7. Stop injection of all currents (that is, set all currents back to 0A).
8. Check that all above mentioned function binary output signals now have
logical value zero.
9. Repeat above steps 1 - 8 for phase L2 and phase L3.
10. Repeat above steps 1 - 8 to test different points from the above table.
Operation of this feature is based on internally calculated peak RMS voltage value.
That means that this feature is also able to operate for current signals with varying
frequency. Note that for the fundamental frequency injection, internally calculated
voltage in percent corresponds directly to the injected current value given in
percent. However if it is required to test IDMT characteristic with a varying
frequency, the magnitude of the injected current must be adjusted accordingly. The
following formula can be used to calculate required current RMS value in percent
at the desired injection frequency in order to archive voltage percentage value
given in the above table:
f
[ ]
[ ]
%
= injected ×
I % U
inj
f
rated
EQUATION2274 V1 EN-US
Note that it is recommended to test IDMT operating times by
injected current with the rated frequency.
Above procedure can also be used to test definite time step. Pay attention that
IDMT step can also operate during such injection. Therefore make sure that
appropriate settings are entered in order to insure correct test results for definite
time step.

Completing the test

Continue to test another functions or end the test by changing the Test mode setting
to Off. Restore connections and settings to their original values, if they were
changed for testing purposes. Make sure that all built-in features for this function,
which shall be in operation, are enabled and with correct settings.

Voltage protection

Two step undervoltage protection UV2PTUV

Prepare the IED for verification of settings outlined in Section
to verify settings".

Verifying the settings

1MRK 505 372-UEN A
(Equation 14)
GUID-5AB7880E-629C-45E5-AF91-3EBDF19DEA79 v2
SEMOD53540-1 v1
M13796-2 v6
"Preparing the IED
M13796-9 v3
Busbar protection REB670 2.2 IEC
Commissioning manual