ABB Relion 650 Series REL650, Commissioning Manual, Page: 136 / 176

1. Check the blocking of the echo with the injection of a CRL signal >40ms after a
reverse fault is applied.
2. Measure the duration of the echoed CS signal by applying a CRL receive signal.
3. Check the trip functions and the voltage level for trip by reducing a phase voltage
and applying a CRL receive signal.
6.9.2.3 Testing conditions
Only one type of fault is sufficient, with the current reversal and weak-end infeed logic
for distance protection function ZCRWPSCH (85). .. For phase A-G fault, set these
parameters:
Table 11: Phase A-G parameter values
Phase I (Amps) Phase-angle (Deg) V (Volts) Phase-angle (Deg)
A 0 0 Set less than
UPN<PU27PN
0
B 0 240 69.3 240
C 0 120 69.3 120
If wanted, change all settings cyclically for other faults (BG andCG).
Weak-end infeed set for echo and trip
1. Apply input signals according table 11 .
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.
(note: a 200mS pulse)
6.9.2.4 Completing the test
Continue to test another function or end the testing by setting the parameter TestMode
to Disabled under Main menu/Tests/IED test mode/1:TESTMODE . If another
function is tested, then set the parameter Blocked to No under Main menu/Tests/
Function test modes/Scheme communication/ZCRWPSCH(85)/1:ZCRWPSCH for
the function, or for each individual function in a chain, to be tested next. Remember to
set the parameter
Blocked to Yes , for each individual function that has been tested.
Section 6
1MRK 506 331-UUS A
Testing functionality
128
Commissioning Manual