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current transformer transformer service detector electronic weighing device

Principles and Test Technology of Electronic Transformers ...· The traditional current transformer has the polarity of P 1 /P 2, and S 1 /S 2. If the polarity is reversed during the field test, it can only change the connection of S 1 and S 2. The electronic transformer outputs signals through the merging unit. In principle, there is only P 1 access and S 1 output. If the polarity is reversed, it cannot be ...

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