Completing The Test - ABB REG650 Commissioning Manual

Section 6
Testing functionality
6.7.2.2
92
1. Check that the IED settings are appropriate, for example the start value and the
time delay.
2. Supply the IED with three-phase voltages at their rated values and frequency 20
mHz over the set value StartFrequency, applying it for a time that is at least 10%
longer than (tDelay+100 ms).
3. Verify that the TRIP signal is active.
4. Decrease the frequency with a 40 mHz step, applying it until the TRIP signal
resets.
5. Measure the reset time of the TRIP signal, and compare it with the technical data
of the function.
Verification of the low voltage magnitude blocking
1. Check that the IED settings are appropriate, especially the StartFrequency and
the tDelay in SAPTOF, and the GlobalBaseSel and the MinValFreqMeas in the
SMAI preprocessing function.
2. Supply the IED with three-phase voltages at rated values.
3. Slowly decrease the magnitude of the applied voltage until the BLKDMAGN
signal appears.
4. Note the voltage magnitude value and compare it with the value
MinValFreqMeas x UBase / 100.
Where:
• MinValFreqMeas is a set value of the SMAI.
• UBase is the value in the GBASVAL group identified by the setting
GlobalBaseSel.
5. Slowly increase the frequency of the applied voltage, to a value above
StartFrequency as explained in Section
delay to operate.
6. Check that the START signal does not appear.
7. Wait for a time corresponding to (tDelay+100 ms), and check that the TRIP
signal does not appear.
8. Slowly increase the magnitude of the applied voltages until the BLKDMAGN
signal resets.
9. Verify that the signal START appears and wait for a time at least equal to (tDelay
+100 ms) to verify that also the signal TRIP becomes active.

Completing the test

Continue to test another function or end the testing by setting the parameter TestMode
to Off under Main menu/Tests/IED test mode/TESTMODE:1. If another function
is tested, then set the parameter Blocked to No under Main menu/Tests/Function test
modes/Frequency/SAPTOF(81,f>)/SAPTOF:X for the function, or for each
individual function in a chain, to be tested next. Remember to set the parameter
Blocked to Yes, for each individual function that has been tested.
1MRK 502 049-UEN A
Verification of START value and time
Commissioning manual