Omicron Lab CT Analyzer, User Manual

Page: 234 / 254

CT SB2 User Manual
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6.2.2 Parameters and Settings Used or Determined During the
Test
Parameter Description
Number of Taps Overall number of tap connections available on the multi-
ratio CT.
Possible values: Soft keys No. Taps 2 , No. Taps 3 ,
No. Taps 4 , No. Taps 5 or No. Taps 6 .
If the number of taps selected is 5 or 3, the CT Analyzer
offers soft keys with predefined CT ratios when the "I-pn"
field is selected in the
CT-Object card (see ”I-pn” on
page 36).
The default number of taps can be selected using the
Select Startup Mode option in the Setting Menu , see
chapter 5 on page 33.
Note: When testing a single-ratio CT using the CT SB2
switch box, select No. Taps 2 . However, single-ratio CT
testing should preferably be performed using the normal
single-ratio CT test mode of the
CT Analyzer without using
the CT SB2 .
Tap in Use The tap combination actually used during operation of the
CT (e.g. X1-X4).
Select the tap combination using the soft keys (for example
X1-X5 , X1-X4 ). To select an intertap combination for the tap
in use, press the Show Inter Taps soft key. The
MR-Config. card then offers soft keys for the intertap
combinations (for example X2-X4 , X3-X4 ).
For the tap combination selected here, the CT Analyzer
displays the detailed test results in the Resistance ,
Excitation and Ratio cards. The automatic test
assessment in the Assessment card is however always
done for the full tap combination given by the
Number of Taps (e.g. for X1-X5 if number of taps = 5). See
sections 6.4 and 6.5 on page 47.
Note: By default, the "Tap in Use" is set to the full tap
combination given by the "Number of Taps".