Omicron Lab CT Analyzer User Manual page 96

CT Analyzer User Manual
94
Param. Description
Ktd * Rated transient dimensioning factor according
to the name plate.
Note: Only displayed if parameter "Spec." is
"by Ktd".
Possible values: 1.0 to 2043 or soft key ?
Default: ? or ?*.
* If displayed, this parameter is relevant for
assessment. No automatic assessment is
available if the user did not enter data for this
parameter prior to the test (see page 82).
Tp * Primary time constant.
Note: Only displayed if parameter "Spec." is
"by Duty".
Possible values: 0.000 to 5.000s or soft keys
20ms, 40ms, 60ms, 80ms, 100ms or 120ms.
T depends on K as follows:
p
Default: ? or ?*.
* If displayed, this parameter is relevant for
assessment. No automatic assessment is
available if the user did not enter data for this
parameter prior to the test (see page 82).
Duty Specified duty cycle.
Note: Only displayed if parameter "Spec." is
"by Duty".
Using the soft keys, two different energizing
cycles can be selected: C-O or CO-CO
Default: C-O.
Available for IEC 61869-2
protection CTs, class
protection
xP xPR PX PXR TPX TPY TPZ
1
.
K 1
–
T ------------ -
=
p
ω
transient
protection
x x x
x x x
x x x