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Reply To: Machine Riddle No.1 – Measuring of generator winding resistance

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    Effective AC resistance of a particular winding is usually determined by using direct current and volt-amp meter method. This resistance is usually that of two phases since the neutral point of a Wye winding is frequently not accessible. In the less common delta-wound alternator, the windings are permanently spliced together at the Delta points The per phase resistance of one phase in a Wye configuration is Rdc = V/(2A)