8. Have inputs CR1and CR2 activated. Start the timer from activation of input
LOCTR and stop the timer from TRIP output.
9. Check the trip time.
If OpMode = 1 Out Of 2:
10. Activate input and check output signals according to table
37 and 38.
Table 37: Activate input signals if OpMode = 1 Out Of 2
INPut
CR1 X X X X X
CHERR1 X
CR2 X X X X X X
CHERR2
LOCTR X X X
LOCTRL1 X X
LOCTRL2 X X
LOCTRL3 X X
Table 38: Activate output signals if OpMode = 1 Out Of 2
OUTPut
Non X
TRIP X X X X X X X X X
TRL1 X X
TRL2 X X
TRL3 X X
11. Connect the trip output to a timer.
12. Have inputs CR1 and CR2 activated. Start the timer from activation from
activation of input LOCTR and stop the timer from TRIP output.
13. Check the trip time.
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.
10.11.7.5 Negative sequence overvoltage protection LCNSPTOV
Prepare the IED for verification of settings as outlined in section
"Requirements" and
section "Preparing for test" in this chapter.
1MRK 506 355-UEN A Section 10
Testing functionality by secondary injection
Line distance protection REL670 2.1 IEC 225
Commissioning manual
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