ABB REQ650 1.3 IEC, Commissioning Manual

Page: 43 / 124

Section 6 Testing IED operation
6.1 Preparing the IED to verify settings
M11741-2 v9
If a test switch is included, start preparation by making the necessary connections to the test
switch. This means connecting the test equipment according to a specific and designated IED
terminal diagram.
Put the IED into the test mode to facilitate the test of individual functions and prevent
unwanted operation caused by other functions. The busbar differential protection is not
included in the test mode and is not prevented to operate during the test operations. The test
switch should then be connected to the IED.
Verify that analog input signals from the analog input module are measured and recorded
correctly by injecting currents and voltages required by the specific IED.
To make testing even more effective, use PCM600. PCM600 includes the Signal monitoring
tool, which is useful in reading the individual currents and voltages, their amplitudes and
phase angles. In addition, PCM600 contains the Disturbance 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 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 analog (real and calculated) and binary signals are
achieved.
The IEDs in the 650 series can have between 1 and 4 individual parameter setting groups
prepared with full sets of different parameters for all functions. The purpose of these groups
is to be able to handle different power system load conditions to optimize the parameters
settings of the different functions for these different power systems conditions (for example
summer/winter and day/night).
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.
In the local HMI the sensitive directional earth fault protection SDEPSDE parameter group 4 is
active indicated by the * next to #4 and the test of the SDEPSDE must be performed according
to the instructions given for the setting
OpMode and setting value 3I03U0cosfi.
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.
Requirements for testing the function.
1MRK 505 293-UEN B Section 6
Testing IED operation
Breaker protection REQ650 37
Commissioning manual
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