ZMRPSB during power swing. Use the result from test of ZMRPSB above to
determine when the fault shall be applied. The earth-fault must be activated
before
tR1
has elapsed.
3.
Start the sequence and observe that the START signal will not be activated.
9.3.2.4
Testing the block input, interaction between FDPSPDIS or
FRPSPDIS and ZMRPSB
M13888-73 v7
Precondition
The BLOCK input is configured and connected to STPE output on the FDPSPDIS
or FRPSPDIS function.
1.
Make a test sequence so that a single phase-to-earth-fault occurs after that the
trajectory of the impedance has passed the outer boundary but not the inner
boundary of the power swing detection function ZMRPSB. Use the result
from test of ZMRPSB above to instance when the fault shall be applied.
2.
Start the test sequence by continuously reducing the voltage and observe that
the output signal ZOUT may come, but not START.
If the input I0CHECK is configured (connected to output signal STPE on
FDPSPDIS or FRPSPDIS, the test of inhibit of ZMRPSB at earth-fault during
power swing can be done in the same way as for test of
tR1
. The inhibit of
ZMRPSB shall be instantaneous if the input TRSP is activated at the same
time as the input I0CHECK during power swing.
9.3.2.5
Completing the test
M13888-99 v5
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.
9.3.3
Out-of-step protection OOSPPAM
GUID-BF2F7D4C-F579-4EBD-9AFC-7C03296BD5D4 v8
The out-of-step protection (OOSPPAM ) function in the IED can be used for both
generator protection and as well for line protection applications.
The main purpose of the OOSPPAM function is to detect, evaluate, and take the
required action during pole slipping occurrences in the power system.
The OOSPPAM function detects pole slip conditions and trips the generator as fast
as possible, after the first pole-slip if the center of oscillation is found to be in zone
1, which normally includes the generator and its step-up power transformer. If the
center of oscillation is found to be further out in the power system, in zone 2, more
than one pole-slip is usually allowed before the generator-transformer unit is
disconnected. A parameter setting is available to take into account the circuit
breaker opening time. If there are several out-of-step relays in the power system,
then the one which finds the center of oscillation in its zone 1 should operate first.
1MRK 506 383-UEN A
Section 9
Testing functionality by secondary injection
Line distance protection REL650 2.2 IEC
81
Commissioning manual
Содержание REL650 series
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