Omicron CT SB2 User Manual page 243

Table 9-4: Soft keys available in the MR-Results card (continued)
Soft key Description
Using this soft key you can display the intertap combinations instead of the tap
combinations.
If the tap combinations are displayed, the soft key is labeled Show Inter Taps. If the
intertap combinations are displayed, the soft key is labeled Show Taps.
9.3.2 Test results
Results with nominal burden or with operating burden
The measured or calculated results in the MR-Results card can be displayed for the nominal burden or
for the operating burden. Select the burden to be used using the corresponding soft key
Results with Op. Burden or Results with Nom. Burden.
When the results are displayed for the nominal burden, the "VA" and "cos ϕ" fields on the top of the
•
page show for each tap or intertap combination selected with the cursor in the "Taps" column the
assigned nominal burden and cos ϕ used for the measurement (e.g. 25VA for X1-X5, 12.5VA for
X1-X4 etc., as assigned in the MR-Config. card).
Using the Show Inter Taps soft key you can display the intertap combinations instead of the tap
combinations.
When the results are displayed for the operating burden, the "Burden" and "cos ϕ" fields on the top
•
of the page display the operating burden specified on the CT-Object card. The operating burden is
the same for all tap or intertap combinations.
Note: Notice that the nominal burdens assigned to the tap combinations are scaled down from the
nominal burden for the full tap combination according to the ratios! The MR-Results card will therefore
show different results for the tap combinations when switching between the results display with
nominal burdens and the results display with operating burden, even if identical values are specified
for VA and Burden in the CT-Object card.
Hint: Once the test is finished, 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 for the new operating burden. Such simulations
can be done at any time after the test is finished if the corresponding test file containing the
measurement results of the CT is loaded in CT Analyzer.
Ratio results and excitation results
The measurement results are displayed on two different pages (see Figure 9-3 on page 54). You can
toggle these pages using the Show Excit. or Show Ratio soft key.
OMICRON
CT Analyzer test cards for Advanced MR Test mode
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