Distribution transformer winding material detection system and method
A distribution transformer and detection system technology, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of low accuracy and high detection cost of distribution transformer winding materials, and achieve the effect of high-accuracy detection and detection cost
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[0046] As described in the background technology, the Chinese invention patent with the application number 200810158124.7 and the name "Transformer Winding Wire Material Tester and Its Testing Method" discloses that the material of the distribution transformer winding can be judged by comparing the time-resistance curve of the distribution transformer winding. Methods. Since copper and aluminum have different physical quantities such as temperature coefficient, thermal conductivity, specific heat capacity, electrical conductivity, and temperature coefficient of resistance, the DC resistance of distribution transformer windings is different when the distribution transformer windings of different materials are energized for the same time. The material of the distribution transformer winding can be judged by comparing the time-resistance curve of the distribution transformer winding.
[0047] However, the DC resistance of the distribution transformer winding is directly affected by
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