If wanted, change all settings cyclically for other faults (L2-N and L3-N).
The setting parameter WEI is set to Echo & Trip.
1. Apply input signals according Table 18.
2. Activate the receive (CR) signal.
3. After the IED has operated, turn off the input signals.
4. Check that trip, send signal, and indication are obtained.
The ECHO output gives only a 200 ms pulse.
9.9.2.3 Completing the test
M14947-105 v5
Continue to test another function or end the test by changing the TESTMODE
setting to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.
9.9.3 Local acceleration logic ZCLCPSCH
M11758-32 v5
Prepare the IED for verification of settings outlined in Section
"Preparing the IED
to verify settings".
The logic is checked during the secondary injection test of the impedance
measuring zones.
9.9.3.1 Verifying the settings
M11758-37 v4
1. Provide the IED with conditions equivalent to normal load for at least two
seconds.
2. Deactivate the conditions for accelerated function.
3. Apply a phase-to-earth fault at 100% of line impedance.
4. Check that the fault is tripped with the second zone time delay.
5. Provide the IED with conditions equivalent to normal load for at least two
seconds.
6. Activate the condition for accelerated function either by the autorecloser or
by the loss-of-load.
7. Apply a phase-to-earth fault at 100% of line impedance.
8. Check that the fault is tripped instantaneously.
Section 9 1MRK 506 383-UEN A
Testing functionality by secondary injection
152 Line distance protection REL650 2.2 IEC
Commissioning manual
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