Omicron Lab CT SB2 - Page 89

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The CT Analyzer Test Cards
Specific parameters and settings displayed for IEC 60044-1
protection CTs
The following parameters are only displayed in the CT-Object card if the
standard IEC 60044-1 is selected with the type "Protection CT".
Param. Description Available for IEC 60044-1
protection CTs, class
2P, 3P,
4P, 5P,
6P, 10P
2PR, 3PR,
4PR, 5PR,
6PR, 10PR
PX
ALF Accuracy limiting factor acc. to IEC 60044-1.
Possible values: Integer value from 1 to 300 or soft keys
?
1
, 5, 10, 15, 20 or 30.
Default: ?.
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).
xx
Rct Specified secondary winding resistance.
Possible values: 0 to 3000 ohms or soft key ?
1
.
Default: ?
xx
Ts Specified secondary time constant.
Possible values: 0.000 to 100.0s or soft key ?
1
.
Default: 100s.
x
Kx Dimensioning factor acc. to IEC 60044-1, PX.
Possible values: 1 to 300 or soft key ?
1
.
Default: ?.
x
Ek Rated knee point e.m.f.
Possible values: 0 to 20000 or soft key ?
1
.
Default: ?.
x
Ie Accuracy limiting current acc. to IEC 60044-1, PX.
Possible values: 0.03mA to 30A or soft key ?
1
.
Default: ?.
x
E1 User-defined e.m.f. to verify the excitation current at this
specific e.m.f.
Possible values: 0.1 to 20000V or soft key ?
2
.
Default: ?.
2. If the question mark is entered, half the voltage entered or measured for E
k
is used.
x
Ie1 Maximum allowed excitation current at E
1
.
Possible values: 0.03mA to 30000mA or soft key ?
3
.
Default: ?.
3. If the question mark is entered, the CT Analyzer uses the excitation current measured at the
voltage value defined at E
1
. In this case, the assessment for this parameter is OK.
x