When do you need Transformer Sweep Frequency Response Analyzer SFRA?

1. During routine test of power transformer maintenance: To check the frequency response data of transformer winding.

2. When the power transformer leaves the factory: To measure the winding frequency response data of the transformer as the characteristic fingerprint information of the transformer

3. After the power transformer is short-circuited: To measure the frequency response data of the power transformer and compare it with the test data before the short-circuit to check whether the transformer windings are deformed.

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