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Section 11
Testing functionality by secondary injection
11.4
11.4.1
11.4.1.1
122
2
1
0
1
0
-1
2
1
0
2
1
0
2
1
0
1
0
-1
0
0.5
1
IEC10000142 V1 EN
Figure 26:
Boolean output signals for the injected current with two components: a 50
Hz current component and a 49.5 Hz current component
Current protection
Four step phase overcurrent protection 3-phase output
OC4PTOC (51_67)
Prepare the IED for verification of settings outlined in section
settings".
Verifying the settings
Verification of the non-directional phase overcurrent function is done as
instructed below, without applying any polarizing voltage.
COMMON TRIP COMMAND (trip)
TRIPZ1 (tripZone1)
TRIPZ2 (tripZone2)
START (start)
GENMODE (generatorMode)
MOTMODE (motorMode)
1.5
2
2.5
3
time in seconds
→
1MRK 511 366-UUS -
3.5
4
4.5
5
IEC10000142-1-en.vsd
"Preparing the IED to verify
Commissioning manual
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