OMICRON 23
CT testing in MR Test mode ("New MR Test")
5. Display the MR-Config. card (see Figure 5-2) and configure the multi-ratio test according to your CT
under test.
Figure 5-2: MR-Config. card for MR Test mode
Note: Table 5-2 provides brief descriptions of the parameters and fields available in the MR-Config.
card. For complete information, please refer to section 8.2 on page 37.
Table 5-2: Data to be specified in the MR-Config card
Parameter Description
Number of Taps Select the overall number of tap connections available on the multi-ratio CT
using the soft keys.
Tap in Use Select the tap combination actually used during operation of the CT (e.g.
X1-X5) using the soft keys. By default, the "Tap in Use" field is set to the full tap
combination.
After completion of the test, the Test Results card will display the results for the
tap combination selected in this field.
Taps This column lists all possible tap combinations of the CT (e.g. X1-X5, X1-X4,
X1-X3, ...). The number of available tap combinations depends on the number
of taps specified in the "Number of Taps" field.
When the MR-Config. card’s tab is highlighted you can select whether X1 or
the highest available tap is used as the common tap. The default common tap
can be selected in the device settings of CT Analyzer, see chapter 7 on page
32.
Using the Show Inter Taps soft key you can display the intertap combinations
instead of the tap combinations. If the intertap combinations are displayed, the
soft key changes to Show Taps.
Ipn : Isn (A) Enter the nominal ratio for each single tap combination.
I
pn
has to be specified for each tap combination listed in this column. I
sn
is taken
from the CT-Object card.
The data for the full tap combination can only be set in the CT-Object card.
Test Use this column to select the tap combinations you actually want to measure
during the test. You can enable or disable each single tap combination
individually (disabling the full tap combination is not possible). Disabling unused
tap combinations reduces the test duration.
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