OMICRON 99
Test cards for Advanced CT Test mode
t-al1 Permissible time to accuracy limit for first energizing period of the
duty cycle.
Possible values: 0.000 to 5.000s and max. t
1
or soft key 40ms.
Default: 0.04s.
xx
t-al2 Permissible time to accuracy limit for second energizing period of
the duty cycle.
Only displayed if "Duty" is C-O-C-O.
Possible values: 0.000 to 5.000s and max. t
2
or soft key 40ms.
Default: 0.04s.
xx
tfr Dead time between first opening and reclosure.
Only displayed if "Duty" is C-O-C-O.
Possible values: 0.00 to 5.00s or soft key 300ms.
Default: 0.3s.
xx
Ktd
calculation
Calculation method for transient dimensioning factor K
td
.
Select a calculation method using the soft keys:
acc. to IEC 60044-6 (calculation exactly acc. to standard),
acc. to OMICRON (calculation considers CT remanence) or
acc. to GB 16847 (acc. to Chinese standard GB 16847).
Default: As defined in the default test settings (see "Default
Standard" parameter in section 6.8.1 on page 66).
xx
1. If the question mark is entered for this parameter and a new test is started, CT Analyzer automatically tries to determine the
value using its integrated guesser function (see chapter 9 on page 138).
Table 8-7: Parameters and settings for IEC 60044-6 (continued)
Param. Description Available for
IEC 60044-6, class
TPS TPX TPY TPZ
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