CT Analyzer User Manual
108 OMICRON
8.3.2 Test results
The lower part of the Burden card shows the results of the burden test after the test is finished.
8.3.3 Connecting the burden and running the burden test
1. Press the Select Cards key soft in the CT-Object card to open the Select Cards page. Enable the
Burden test card in the Select Cards page. Press the Back soft key to apply your test card selection
and to return to the CT-Object card.
Figure 8-5: Select Cards page with Burden test card enabled
2. In the Burden card, use the default test current or enter the desired test current to parameter "I-test".
3. Execute the burden test as described in section 5.2.3 on page 57.
Possible test steps following the burden test:
â–º Residual magnetism measurement, see section 8.4.2 on page 110.
â–º Primary resistance measurement, see section 5.2.3, steps 4. & 5. on page 58.
â–º CT test, see section 5.2.3, steps 7. to 11. on page 59, and sections 5.2.4 on page 60 and 5.2.5 on
page 61.
Table 8-13: Test results in the Burden card
Parameter Description
I-meas Current measured during the test.
V-meas Voltage measured at the load during the test.
Burden / Cos
Ï•
Burden and cos Ï• calculated from the measured quantities.
If the rated secondary current is not known, the result field will only show "n/a" as long
as I
sn
is not defined.
Z Impedance of the burden calculated from the measured quantities.
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