Omicron Lab CT Analyzer User Manual page 115

Param. Description
Ktd
Theoretical transient dimensioning factor.
E-max Maximum e.m.f. voltage.
This parameter allows the determination of the
working point on the excitation curve that
would be reached with the entered settings.
^ Peak instantaneous error at voltage E
ε
1. If the CT Analyzer is not able to measure up to the actual value, the prefix ">" is displayed to
indicate that the measurement value is larger than the displayed value.
2. If parameter "Spec." is set to "by Duty" in the CT-Object card (see page 93), no calculation is
performed for this parameter if the user did not specify values for T
card prior to the test.
3. This parameter is only displayed if parameter "Spec." is set to "by Duty" in the CT-Object card
(see page 93). No calculation is performed for this parameter if the user did not specify values
for T and t in the CT-Object card prior to the test.
p al1
Test results displayed in the Excitation card for IEEE C57.13
Param. Description
V-kn Knee point voltage according to standard.
I-kn Knee point current according to standard.
Ls Saturated inductance.
Lm Non-saturated inductance.
Ts Secondary time constant.
Kr Remanence factor.
Vb Rated secondary terminal voltage.
FS Instrument security factor (direct measurement
method), calculated for nominal and operating
1
burden.
FSi Instrument security factor (indirect measurement
method), calculated for nominal and operating
1
burden.
1. If the CT Analyzer is not able to measure up to the actual value, the prefix ">" is displayed to
indicate that the measurement value is larger than the displayed value.
The CT Analyzer Test Cards
Results displayed for
IEC 61869-2
protection CTs, class
3
x
x
.
x
max
and t in the CT-Object
p al1
Results displayed for
IEEE C57.13
protection
CTs
x
x
x
x
x
x
x
x x
x
x
metering
CTs
x
x
x
x
x
x
x
x
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