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10.2.4 Auto Transformer Winding Resistance
Mini-ATOS has special winding resistance measurement for Auto Transformers. The parameters
and method of measurements are summarized in Table 10. The method of measurements in Table
10 are for phase A of a star-null auto transformer.
Table 10: The autotransformer winding resistance parameters and measurement methods
Rserie
Rserie & Rcommon
Rcommon & Rinline
RHX
(Rs + Ri)
90297-0.24 Instruction Manual mini-ATOS
Rcommon
Rinline
(Rs + Rc)
(Ri + Rc)
Preliminary
RH
RX
Page 75 of 125
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