Omicron CT SB2 User Manual page 106

CT Analyzer User Manual
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".
Table 8-9: Parameters and settings for IEC 61869-2 metering CTs
Param. Description
FS Instrument security factor acc. to IEC 61869-2.
Possible values: Integer value from 1 to 30 or soft keys ?
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 usually
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, CT Analyzer automatically tries to determine the
value using its integrated guesser function (see chapter 9 on page 138).
104
Available for
IEC 61869-2
metering CTs,
class
0.1, 0.2, 0.2s, 0.5,
0.5s, 1, 3, 5
1
, FS1, FS1.5,
x
x
x
OMICRON