CT Analyzer User Manual
92 OMICRON
8.2.3 Parameters and settings used or determined by the test
process
The fields described in this section are used and/or determined by the test process.
Figure 8-3: Editing the CT-Object card
Note: If the "Check "*" settings before start" option is enabled in the default test settings (see section
6.8.3 "Miscellaneous settings" on page 71), no automatic assessment will be available if you do not enter
data for a parameter that is relevant for assessment. Such parameters are marked by a star "*" in the
CT Analyzer user interface and in the following tables.
Common parameters and settings displayed for all standards, CT types and
classes
The table below lists the parameters and settings that are displayed for all standards, CT types and
classes.
In addition to these common parameters, specific additional parameters are displayed in the CT-Object
card depending on the selected standard, CT type (protection or metering CT) and class. For these
specific parameters, please refer to the tables on pages 96 to 106.
Table 8-4: Parameters and settings common for all standards, CT types and classes
Parameter Description
I-pn Rated primary current.
Possible values: 1 to 99000A or ?
1
soft key. Default: ?.
I-sn Rated secondary current.
Possible values: 0.05 to 25A or soft keys 1.0, 2.0, 5.0, 1.0A/√3, 2.0A/√3, 5.0A/√3 or ?
1
.
Default: ?.
Standard Standard according to which the test has to be performed.
Possible values: Soft keys IEC 60044-1, IEC 60044-6, IEEE C57.13 or IEC 61869-2
If a customized assessment configuration is selected in the settings (Main Menu ->
Settings -> Select Customized Assessment (see page 68)), an additional Custom soft key
is available to allow selection of this customized assessment rule.
Default: Standard defined in the default test settings.
Note: Using the IEEE C57.13 standard for transformers with gapped cores may possibly
deliver incorrect results.
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