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Section 10
Testing IED operation
82
equipment cannot indicate the phase angle, a separate phase-angle measuring instrument
is necessary.
Prepare the IED for test before testing a particular function. Consider the logic diagram of
the tested protection function when performing the test. All included functions in the IED
are tested according to the corresponding test instructions in this chapter. The functions
can be tested in any order according to user preferences. Only the functions that are used
(Operation is set to Enabled) should be tested.
The response from a test can be viewed in different ways:
•
Binary outputs signals
•
Service values on the local HMI (logical signals or phasors)
•
A PC with PCM600 application configuration software in work online mode
All setting groups that are used should be tested.
This IED is designed for a maximum continuous current of four times the
rated current.
All references to CT and VT must be interpreted as analog values received
from merging units (MU) via IEC 61850-9-2LE communication protocol,
analog values received from the transformer input module, or analog
values received from the LDCM.
When using a MU test simulator, make sure it is set to the correct SVID
and that the system frequency is set to the same as in the IED.
Please observe the measuring accuracy of the IED, the test equipment and
the angular accuracy for both of them.
Please consider the configured logic from the function block to the output
contacts when measuring the trip time.
After intense testing, it is important that the IED is not immediately
restarted, which might cause a faulty trip due to flash memory restrictions.
Some time must pass before the IED is restarted. For more information
1MRK 511 366-UUS -
Commissioning manual
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