Omicron CT SB2 User Manual page 219

CT testing in Advanced MR Test mode ("New Advanced MR Test")
The MR-Config. card displays the test configuration defined prior to the test.
Figure 6-4: MR-Config. card
The MR-Results card displays detailed data for the individual tap combinations of the multi-ratio CT. You
can switch this card to display the ratio results (e.g. winding ratio, ratio and phase error, etc.) or the
excitation results (e.g. V , I , etc.).
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For a detailed description of this card, please refer to section 9.3 on page 54.
CT Analyzer calculates the results for the operating burden (parameter "Burden" in the CT-Object card)
and for the nominal burden (parameter "VA" in the CT-Object card). Depending on the burden selected,
the MR-Results card shows the results calculated with the nominal burden or calculated with the
operating burden.
Figure 6-5: MR-Results card showing ratio results (left) and excitation results (right)
Hint: It is possible to simulate the performance of the CT for other burden values than the nominal
burden by changing the "Burden" value in the CT-Object card. CT Analyzer then automatically performs
a recalculation of the results displayed in the MR-Results card for the new operating burden.
In the CT-Object card, enter the "Location" and "Object" details and save the test (use the cursor keys
to scroll within the card and select the edit fields).
The assessment of the measurement results for the full tap combination can be viewed on the
Assessment card.
If desired, you can view the measurement results for the tap in use selected in the MR-Config. card by
viewing the Resistance card, the Excitation card and the Ratio card.
OMICRON 31