CT Analyzer User Manual
120 OMICRON
Test results displayed in the Excitation card for IEEE C57.13
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
^
εac
Peak alternating error component acc. to the standard.
x
1. If 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 101), no calculation is performed for this parameter if
the user did not specify values for T
p
and t
al1
in the CT-Object 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 101). No calculation
is performed for this parameter if the user did not specify values for T
p
and t
al1
in the CT-Object card prior to the test.
Table 8-21: Test results for IEEE C57.13
Param. Description Results displayed for
IEEE C57.13
protection
CTs
metering
CTs
V-kn Knee point voltage according to standard. x x
I-kn Knee point current according to standard. x x
Ls Saturated inductance. x x
Lm Non-saturated inductance. x x
Ts Secondary time constant. x x
Kr Remanence factor. x x
Vs (10% RE)
1
1. For IEEE C57.13 classes C, T and K.
Terminal voltage at 10 % ratio error.
x
1
Vs (User def. % RE)
2
2. For IEEE C57.13 class X only.
Terminal voltage at the user-defined percentage of the
ratio error specified for the RE(20*Isn) parameter in the
CT-Object card.
x
2
FS Instrument security factor (direct measurement method),
calculated for nominal and operating burden.
3
3. If 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.
x
FSi Instrument security factor (indirect measurement
method), calculated for nominal and operating burden.
1
x
Table 8-20: Test results for IEC 61869-2 (continued)
Param. Description Results displayed for
IEC 61869-2
protection CTs, class
metering
CTs
...P
...PR
PX
PXR
TPX
TPY
TPZ
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