4.
If the fault persists for a duration of
tPEZx
+
tGL2
, TRL2 will appear or fault
persists for a duration of additional timer
txL2
plus extension time
tVL2
(i.e.
txL2
+
tVL2
), TRL2 will appear.
5.
If during time
tVL2
, make a test point such that start signal STELEMST
resets and also magnitude of phase L1 is below
U0Min
value, the output
signals STPHPRERL2 and TRL2 will reset indicating that fault on phase L2
is cleared.
6.
If during time
tVL2
, inject voltages in phases such that change in phase L1
voltage is lower than set
duOverdt
value and change in phase L2 voltage is
higher than set
dUOverdt
value, the output signals STPHPRERL2 and TRL2
will reset indicating that fault on phase L2 is cleared.
10.4.2.2
Completing the test
GUID-6C021116-948E-4967-ABCA-FB0529F7DF0B v1
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.
10.4.3
Commissioning manual
10.4.3.1
Catenary distance protection ZRCPDIS
GUID-CA6E4A54-006D-45A9-BCC4-AD4DEF3126BC v2
Prepare the IED for verification of settings outlined in Section
.
Values of the logical signals for ZRCPDIS are available on the local HMI under
Main menu/Test/Function status/Impedance protection/
DistanceProt1Ph(21,Z<)/ZRCPDIS(21;Z<):x
, where x = 1 or 2.
The Signal Monitoring tool in PCM600 shows the same signals that are available
on the local HMI.
Verifying the signals and settings
GUID-511B24C6-2E31-49D2-A5FE-D138B5CA9FED v1
Measure the operating characteristics during constant current conditions. Keep the
measured current as close as possible to the rated value of the IED or lower. Ensure
that it is higher than the set minimum operating current.
Ensure that the maximum continuous current to the IED does not exceed four times
of its rated value, if the measurement of the operating characteristics runs under
constant voltage conditions.
To verify the settings, test the operating points given in the following figure by
injecting appropriate voltage and current(s) to the IED through a secondary
injection kit.
Always set
Operation
to
On
to check the performance of distance protection during
testing.
Ensure that the setting parameter
TESTMODE
is set to
ON
.
1MRK 506 377-UEN C
Section 10
Testing functionality by secondary injection
Railway application RER670 2.2 IEC
99
Commissioning manual
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