Omicron CT SB2 - Page 102

CT Analyzer User Manual
100 OMICRON
Specific parameters and settings displayed for IEC 61869-2 protection CTs
The following parameters are only displayed in the CT-Object card if the standard IEC 61869-2 is
selected with the type "Protection CT".
Table 8-8: Parameters and settings for IEC 61869-2 protection CTs
Param. Description Available for IEC 61869-2 protection
CTs, class
protection transient
protection
...P ...PR PX PXR TPX TPY TPZ
ALF Accuracy limiting factor acc. to IEC 61869-2.
Possible values: Integer value from 1 to 300 or soft
keys ?
1
, 5, 10, 15, 20 or 30.
Default: ?.
xx
Rct Specified secondary winding resistance.
Possible values: 0 to 3000 ohms or soft key ?
1
.
Default: ?
x x x xxx
Ts Specified secondary time constant.
Possible values: 0.000 to 100.0s or soft key ?
1
.
Default: 100s.
xx
Kx Dimensioning factor acc. to IEC 61869-2.
Possible values: 1 to 300 or soft key ?
1
.
Default: ?.
xx
Ek Rated knee point e.m.f.
Possible values: 0 to 40000V or soft key ?
1
.
Default: ?.
xx
E1 User-defined e.m.f. to verify the excitation current
at this specific e.m.f.
Possible values: 0.1 to 40000V or soft key ?
2
.
Default: ?.
xx
Ie Accuracy limiting current acc. to IEC 61869-2.
Possible values: 0.03mA to 30000mA or
soft key ?
1
.
Default: ?.
xx
Ie1 Maximum allowed excitation current at E
1
.
Possible values: 0.03mA to 30000mA or soft key
?
3
.
Default: ?.
xx