11.4.8.4 Measuring the operating time of distance protection zones
GUID-70AEC42A-9BC7-445A-AE21-2CEC0C3A79DC v3
Procedure:
1. Subject the IED to healthy normal load conditions for at least two seconds.
2. Apply the fault condition to find the operating time for the phase-to-phase fault according to test
point 10 in figure and table for zone 1. Compare the result of the measurement with the setting
t1PP.
3. Repeat steps
1 to 2 to find the operating time for the phase-to-ground fault according to test point
10 in figure and table . Compare the result of the measurement with the setting t1PG.
4. Repeat steps
1 to 2 to find the operating time for all other used measuring zones.
Observe that the zones that are not tested have to be blocked and the zone that is tested has to be
released.
11.4.8.5 Transient directional element
GUID-401518F3-26DD-4994-80A1-DE94D51945E9 v1
Since the transient directional element is operating in the time domain, based on an RL circuit model, it
expects that the input current signals have proper transitions going from healthy to faulty state. This
essentially means that the test equipment has to be able to generate currents with a DC-component
bridging the two states, without discontinuities, even when a pre-fault load current is present. If not, the
result of the test will not be valid.
11.4.8.6 Completing the test
GUID-7FA2EA27-B6E2-48AB-8D53-22425E322FFA v1
Continue to test another function or end the test by changing the TESTMODE setting to Disabled.
Restore connections and settings to the original values, if changed for testing purposes.
11.4.9 Power swing detection, blocking and unblocking ZMBURPSB
GUID-7A9D2225-A0F2-4B51-8F67-C0100BB04DB9 v1
Prepare the IED for verification of settings outlined in Section
"Preparing the IED to verify settings".
Values of the logical signals for ZMBURPSB are available on the local HMI under Main menu /Test/
Function status /Impedance protection/PowerSwingDetection(68,Zpsb) /ZMBURPSB(68;Zpsb):1
The Signal Monitoring tool in PCM600 shows same signals that are available on the local HMI.
11.4.9.1 Function revision history
GUID-519970E3-BC9F-4DB7-9608-4CBD4E2ACB30 v2
Document
revision
Product
revision
History
A 2.2.1 -
B 2.2.1 -
C 2.2.2 -
D 2.2.3 -
E 2.2.3 -
Table continues on next page
Section 11 1MRK 504 165-UUS Rev. J
Testing functionality by secondary injection
132 Transformer protection RET670
Commissioning manual
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