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

1MRK 511 403-UUS Rev. K
Testing conditions
Only one type of fault is sufficient, with the current reversal and weak-end infeed logic for distance
protection function ZCRWPSCH (85). Apply three faults (one in each phase). For phase A-G fault, set
these parameters:
Table 23:
Phase
A
B
C
If wanted, change all settings cyclically for other faults (BG andCG).
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 Disabled.
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
for test" in this chapter.
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-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.
Bay control REC670
Commissioning manual
Phase A-G parameter values
I (Amps) Phase-angle
(Deg)
0
0
0
The ECHO output gives only a 200 ms pulse.
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V (Volts)
0 Set less than UPN<
PU27PN
240 69.3
120 69.3
Testing functionality by secondary injection
Phase-angle
(Deg)
0
240
120
"Requirements" and section
Section 11
M14947-52 v7
M14947-105 v5
M11758-32 v5
"Preparing
M11758-37 v5
191