Omicron Lab CT Analyzer User Manual page 99

Specific parameters and settings displayed for IEC 61869-2
metering CTs
The following parameters are only displayed in the CT-Object card if the
standard IEC 61869-2 is selected with the type "Metering CT".
Param. Description
FS Instrument security factor acc. to IEC 61869-2.
Possible values: Integer value from 1 to 30 or soft keys ?
FS1.5, FS2, FS5, FS10, FS20 or FS30.
Default: ?.
ext. Ipn Extended current rating.
Possible values: 100 to 400% or soft keys 120%, 150%, 200%,
300%, 400%.
Default: 120%.
ext. VA Extended burden range for ratio error and phase displacement
assessment according to IEC 61869-2.
The assessment of the ratio error and the phase displacement is
usuallly performed down to a burden of 12.5% of the nominal
burden. If the "ext. VA" parameter is set to "on", the assessment
is performed for an extended range down to a burden of 1VA if
the limit of 12.5% results in a burden higher than 1VA.
Possible values: Soft keys On or Off.
Default: On.
1. If the question mark is entered for this parameter and a new test is started, the CT Analyzer
automatically tries to determine the value using its integrated guesser function (see chapter 7 on
page 131).
The CT Analyzer Test Cards
Available for
IEC 61869-2
metering CTs,
class
0.1, 0.2, 0.2s, 0.5,
0.5s, 1, 3, 5
1
, FS1,
x
x
x
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