Completing The Test; Local Acceleration Logic Zclcpsch; Verifying The Settings - Hitachi Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
Table 23:
Phase
L1
L2
L3
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 23.
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.
11.11.2.4

Completing the test

Continue to test another function or end the test by changing the TESTMODE setting to Off. Restore
connections and settings to the original values, if changed for testing purposes.
11.11.3

Local acceleration logic ZCLCPSCH

Prepare the IED for verification of settings as outlined in section
section
The logic is checked during the secondary injection test of the impedance measuring zones.
11.11.3.1

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-earth 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-earth fault at 100% of line impedance.
8. Check that the fault is tripped instantaneously.
11.11.3.2 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Off. Restore
connections and settings to the original values, if changed for testing purposes.
182
Phase L1-N parameter values
I (Amps)
0
0
0
The ECHO output gives only a 200 ms pulse.
"Preparing for test" in this chapter.
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Phase-angle V (Volts)
(Deg)
0 Set less than UPN<
240 63
120 63
1MRK 511 403-UEN Rev. L
Phase-angle
(Deg)
0
240
120
"Requirements" and
Bay control REC670
Commissioning manual
M14947-105 v5
M11758-32 v5
M11758-37 v5
M11758-57 v4