Omicron Lab CT SB2 - Page 113

111
The CT Analyzer Test Cards
Test results displayed in the Excitation card for IEC 60044-6
Param. Description Results displayed for
IEC 60044-6, class
TPS TPX TPY TPZ
V-knKnee point voltage according to standard. xxxx
I-knKnee point current according to standard. xxxx
Ls Saturated inductance. xxxx
LmNon-saturated inductance. xxxx
Ts Secondary time constant. xxxx
Kr Remanence factor. xxxx
Kssc Rated symmetrical short-circuit current factor at
accuracy limit with the selected load.
1
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.
xxx
Ktd Theoretical transient dimensioning factor. x x x
V-al Accuracy limiting voltage according to IEC 60044-
6 for class TPS (that point on the excitation graph
where an increase of the e.m.f. r.m.s. voltage
(core flux) by 10% causes an increase of the peak
current by 100%).
x
I-al Accuracy limiting current according to IEC 60044-
6 class TPS (at V
al
).
x
E1 User-defined e.m.f. to verify the excitation current
at this e.m.f.
x
Ie1 Max. allowed excitation current at E
1
.
x
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.
xx
^
ε
Peak instantaneous error at voltage E
max
.
xx