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Connection of dry test transformer

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Release time: January 11, 2021 Source: Huaxing Xiaoliu Number of hits:

Dry type test transformer is widely used in the insulation performance test of electrical equipment and electrical materials. What should be paid attention to in the wiring of this type of transformer?
a. Connection of lines
The input power of the test transformer must be connected to its low voltage winding through a voltage regulator. The low-voltage side of the transformer has power input terminals a and X, high-voltage grounding terminals (i.e. high-voltage tail) x, iron core and support grounding terminals. When a single test transformer is used, the iron core and support must be reliably grounded; the iron core and support of the first stage (low potential) of the test transformer group used in series must be grounded.
b. Wiring of high voltage output terminal
The output terminals of high voltage winding of test transformer are a and X. A end high pressure leads out, X leads out from low pressure side. The high-voltage connecting wire can be directly connected to the voltage equalizing cover (ball), and the x-terminal of the high-voltage tail must be directly or indirectly grounded (such as connecting the ammeter in series, but not through high resistance).
If you want to know more about the wiring of dry test transformer, please pay attention to the official website of Huaxing special transformer.


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