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US 8,410,790 B2Granted
Apparatus for testing transformers
AssigneeMaschinenfabrik Reinhausen GmbH
InventorsAndreas Thiede, Yulong Huang, Uwe Stephan
Life of this patent
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Abstract
The invention relates to a device for testing transformers, having a static frequency converter (2). The static frequency converter (2) comprises a plurality of outlets (21, 22, 23), which are connected to a filter device (6). The filter device (6) also comprises a plurality of outlets (31, 32, 33), which are connected to a matching transformer (8), and wherein the matching transformer (8) is connected to the transformer (15) intended for testing. The filter device (6) is a filter transformer (11).
Claims3
An apparatus for high-voltage testing a transformer, the apparatus comprising:
- a static frequency converter having a plurality of outputs;
- a filter transformer having a primary connected to the frequency-converter output and a secondary having a plurality of outputs;
- a grounded electrostatic screen between the primary and secondary;
- respective capacitors each having one side connected to a respective one of the secondary outputs and an opposite side connected star-fashion to a common ground;
- and
- a matching transformer connected to the filter outputs and connectable to the transformer to be tested.
3 more elements
Dependencies are inferred from the claim text.