CP SB1 User Manual
66
show a very good match with the values measured by the manufacturer for the
mid-position (denoted as tap 10) of the tap selector in all phases, where direct
connection to the main winding occurs.
Figure 5-9 Winding resistance measurement H1-H0
In the measurements taken with the test system, the different winding
temperatures were considered and all other taps showed a significant increase
compared to the original measured values. The differences are more than 10%
or, in absolute values, up to 70 mΩ. The deviations between switching upwards
and switching downwards are likewise clearly significant. This shows that the
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