IEC06000513-2-en.vsd
R
X
Underexcitation Protection
Restrain area
Z1, Fast zone
Z2, Slow zone
Test #1
Test #2
Test #3
Test #4
IEC06000513 V2 EN
Figure 92: Testing current and voltage corresponding to the apparent
impedance
15.5.3.2 Completing the test
Continue to test another function or end the test by changing the Test mode setting
to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.
15.6 Current protection
15.6.1 Instantaneous phase overcurrent protection PHPIOC
Prepare the IED for verification of settings outlined in section "Overview" and
section "Preparing for test" in this chapter.
To verify the settings the following fault type should be tested:
• Phase-to-earth fault
1MRK 502 029-UEN A Section 15
Verifying settings by secondary injection
167
Installation and commissioning manual
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