When looking at the measurement sections ("Ratio Raw" and "Ratio Turns") of these two
examples, we can clearly see a difference. If measuring without neutral (e.g. Y or Z) a deviation in
only one Phase inflicts all three measurements. The deviations are -8.94%, -8.99% and -28.3%
although there is a turn fault in only one phase. To locate the fault conclusively it is necessary to
solve a system of equations, which can be solved only after all three individual measurements
have been done. But it clearly reveals the fault location.
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