ABB Relion 670 Series Commissioning Manual page 232

Section 11
Testing functionality by secondary injection
1. Apply input signals according Table 40.
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.
11.11.3.3 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.
11.11.4 Local acceleration logic ZCLCPSCH
Prepare the IED for verification of settings as outlined in section
section "Preparing for test"
The logic is checked during the secondary injection test of the impedance measuring zones.
11.11.4.1 Verifying the settings
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-ground fault at 100% of line impedance.
4. Check that the fault is tripped with the zone 2 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-ground fault at 100% of line impedance.
8. Check that the fault is tripped instantaneously.
11.11.4.2 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.
11.11.5 Scheme communication logic for residual overcurrent protection
ECPSCH (85)
Prepare the IED for verification of settings outlined in Section
settings".
226
The ECHO output gives only a 200 ms pulse.
in this chapter.
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1MRK 506 371-UUS E
TESTMODE setting to Disabled .
"Requirements" and
TESTMODE setting to Disabled .
"Preparing the IED to verify
Line distance protection REL670
Commissioning manual
M14947-105 v5
M11758-32 v5
M11758-37 v5
M11758-57 v4
M13926-2 v6