ABB Relion 670 Series Commissioning Manual page 200

Section 11
Testing functionality by secondary injection
11.7.1.1 Verifying the settings
Verification of PICKUP value and time delay to trip
1. Check that the IED settings are appropriate, for example the pickup value and the time delay.
2. Supply the IED with three-phase voltages at their rated values and initial frequency.
The initial frequency is calculated using Equation 101.
StartFrequency
IECEQUATION16059 V1 EN-US
3. Slowly decrease the voltage frequency bysteps of 40 mHz until the TRIP signal appears;
during each step apply the voltage signal for a time that is either at least 10% longer than
tDelay +100ms) or a suitable time to monitor the function.
(
4. Note the frequency value at which the START signal appears and compare it with the set
value
5. Note the frequency value at which the TRIP signal appears and compare it with the set value
StartFrequency .
6. Increase the frequency until its rated value is reached.
7. Check that the PICKUP signal resets.
8. Supply the IED with three-phase voltages at their rated values and frequency 20 mHz over the
set value
9. Decrease the frequency with a 40 mHz step, applying it for a time that is at least 10% longer
than (
10. Measure the time delay of the
the measured time consists of the set value of the time delay plus the minimum trip time of
the pickup start function (80 - 90 ms).
Extended testing
1. The test above can be repeated to check the time to reset.
2. The tests above can be repeated to test the frequency dependent inverse time characteristic.
Verification of the low voltage magnitude blocking
1. Check that the IED settings are appropriate, for example the
tDelay .
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 set value
5. Slowly decrease the frequency of the applied voltage, to a value below
6. Check that the PICKUP signal does not appear.
7. Wait for a time corresponding to
11.7.1.2 Completing the test
continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
194
   
0.02 floor f StartFrequency

r
StartFrequency .
StartFrequency .
tDelay +100ms).
© Copyright 2017 ABB. All rights reserved
 
/ 0.04 0.04

TRIP signal, and compare it with the set value tDelay . Note that
tDelay , make sure that the TRIP signal does not appear.
1MRK 506 371-UUS E
(Equation 101)
PUFrequency , VMin , and the
VMin .
PUFrequency .
TESTMODE setting to Disabled .
Line distance protection REL670
Commissioning manual
M16289-15 v3
M16289-17 v7
M16289-31 v6
M16289-39 v7
M16289-57 v5