ABB Relion REB500, Руководство по вводу в эксплуатацию

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Section 2
1MRK 505 351-UEN
Commissioning
8 Commissioning Manual
Distributed busbar protection REB500
16. Set the system time
17. Record traceability data
18. Final test and inspection
Since the methods to perform the above mentioned procedure should be well
known to the commissioning engineer, a detailed explanation is omitted. The
following paragraphs focus on items specific to the REB500
2.2.2 Commissioning with a partial system
In order to operate, the REB500 protection system requires signals from the
isolators and circuit-breakers indicating their status. If one or several positions are
unknown, the protection system starts incompletely. The system is only fully
operational and standing by when all the position signals are available.
At the beginning of commissioning, these signals are frequently incorrectly wired
or the supply for the auxiliary contacts is unavailable. To enable commissioning of
the protection system to proceed in spite of this, the positions of the isolators and
circuit-breakers have to be simulated. This can be achieved either using jumpers at
the terminals or by simulating optocoupler positions in the test mode.
The checks described in this document assume a system in a stable
stand-by mode, i.e. no alarms with the exception of “Test generator
active” may be active.
2.2.3 Comparison with the layout of the primary system
In order to operate correctly, the REB500 process image needs to reflect the actual
setup of the primary equipment in the substation. It is therefore important to verify
the correct engineering at the beginning and make sure that not yet installed parts
are masked accordingly.
The easiest way to verify this is by checking the layout in HMI500 using the
“Single-line diagram” in the “View” menu.
Check that the locations of the CTs in the single-line diagram
conforms to the actual primary system. This check is essential if an
end fault protection is installed, as it influences the tripping logic
and most tests do not disclose an incorrect location.