Omicron Lab CT Analyzer User Manual page 100

CT Analyzer User Manual
98
Specific parameters and settings displayed for IEEE C57.13
protection CTs
The following parameter is only displayed in the CT-Object card if the
IEEE C57.13 standard is selected with the type "Prot. CT".
Param. Description
Vb * Rated secondary terminal voltage.
If the IEEE C57.13 standard is selected with the type
"protection CT" (class C, K or T), the VA and Cos
parameters are not accessible to the user. In this case, the
user has to enter the terminal voltage V
Possible values: Integer values from 10 to 1200V or soft
2
keys ? , 10V, 20V, 50V, 100V, 200V, 400V or 800V.
Default: ? or ?*.
* 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).
Vk User-defined measuring point.
User-defined measuring point 1.
Vk1
Possible values: Integer values from 0.1V to 20.000V or
1
soft key ? .
Default: ?.
Ik User-defined measuring point.
User-defined measuring point 1.
Ik1
Possible values: Integer values from 0.03mA to
30.000mA or soft key ?
Default: ?.
RE(20*Isn) Ratio error at 20 * I
Possible values: Integer values from 1% to 99%.
Default: 10%.
Rct Specified secondary winding resistance.
Possible values: 0 to 3000 ohms or soft key ?
Default: ?
1. Acc. to IEEE C57.13 (1993)
2. 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).
instead.
b
2
.
.
sn
1
Available for
IEEE C57.13, class
C T X
ϕ
x x
x x
x x
x
x
.
1
K
x