CPC 100 V1.41
4 - 34
Test settings
Figure 21:
CTRatioV test card with
test results
Navigate to the parameter fields, and enter the values according to your test
requirements:
Iprim: nominal primary current
Isec: nominal secondary current
Vtest: secondary inception voltage
f: output frequency
Auto: select check box for automatic test (default), clear for manual
test (refer to page 4-36).
Note: If the transformer’s knee point voltage is approximated or
exceeded due to the transformer’s saturation, the measurement
results are not correct anymore. If the knee point is extensively
exceeded, the transformer can even be damaged.
Therefore, the knee point voltage should be known or measured
beforehand.
Generally, to set the test voltage to 75% of the knee-point voltage
is a good choice.
The frequency should be set 15 to 20 Hz off the mains frequency
to avoid interferences by life systems in the neighborhood.
To Next Page
Loading...
Need help?
General
