Completing The Test; Local Acceleration Logic Zclcpsch; Verifying The Settings - ABB rec670 Commissioning Manual

1MRK 511 360-UEN A
10.10.2.3
10.10.3
10.10.3.1
Bay control REC670 2.1 IEC
Commissioning manual
Testing functionality by secondary injection
Testing conditions
Only one type of fault is sufficient, with the current reversal and weak-end infeed logic
for distance protection function ZCRWPSCH. Apply three faults (one in each phase).
For phase L1-N fault, set these parameters:
Table 19: Phase L1-N parameter values
Phase I (Amps)
L1 0
L2 0
L3 0
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 19.
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.

Completing the test

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.

Local acceleration logic ZCLCPSCH

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

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.
Phase-angle (Deg) V (Volts)
0 Set less than
240 63
120 63
Section 10
Phase-angle (Deg)
UPN< 0
240
120
"Preparing the IED to
171