ABB Relion 670 series, Installation And Commissioning Manual

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handling tool. The content of reports generated by the Disturbance handling tool
can be configured which makes the work more efficient. For example, the tool may
be configured to only show time tagged events and to exclude analog information
and so on.
Check the disturbance report settings to ensure that the indications are correct.
For test functions and test and signal parameter names, see the technical reference
manual. The correct initiation of the disturbance recorder is made on start and/or
release or trip from a function. Also check that the wanted recordings of analogue
(real and calculated) and binary signals are achieved.
Parameters can be entered into different setting groups. Make sure
to test functions for the same parameter setting group. If needed,
repeat the tests for all different setting groups used. The difference
between testing the first parameter setting group and the remaining
is that there is no need for testing the connections.
During testing, observe that the right testing method, that corresponds to the actual
parameters set in the activated parameter setting group, is used.
Set and configure the function(s) before testing. Most functions are highly flexible
and permit a choice of functional and tripping modes. The various modes are
checked at the factory as part of the design verification. In certain cases, only
modes with a high probability of coming into operation need to be checked when
commissioned to verify the configuration and settings.
15.2.2 Preparing the connection to the test equipment
The IED can be equipped with a test switch of type RTXP8, RTXP18 or RTXP24.
The test switch and its associated test plug handle (RTXH8, RTXH18 or RTXH24)
are a part of the COMBITEST system, which provides secure and convenient
testing of the IED.
When using the COMBITEST, preparations for testing are automatically carried
out in the proper sequence, that is, for example, blocking of tripping circuits, short
circuiting of CT’s, opening of voltage circuits, making IED terminals available for
secondary injection. Terminals 1 and 8, 1 and 18 as well as 1 and 12 of the test
switches RTXP8, RTXP18 and RTXP24 respectively are not disconnected as they
supply DC power to the protection IED.
The RTXH test-plug handle leads may be connected to any type of test equipment
or instrument. When a number of protection IEDs of the same type are tested, the
test-plug handle only needs to be moved from the test switch of one protection IED
to the test switch of the other, without altering the previous connections.
Use COMBITEST test system to prevent unwanted tripping when the handle is
withdrawn, since latches on the handle secure it in the half withdrawn position. In
this position, all voltages and currents are restored and any reenergizing transients
1MRK 502 029-UEN A
Section 15
Verifying settings by secondary injection
149
Installation and commissioning manual