FIELD: electrical engineering.
SUBSTANCE: invention relates to tests of a load tap changer of a transformer. Essence: a test signal that is fed into the transformer winding and the load tap changer is generated. Tap changer is actuated multiple times to change the transformation ratio during each actuation. Curve of the electrical measured value of the transformer is plotted in time for each adjustment tap changer depends on the test signal. Filter the curves in order to prevent at least one of the curves from issuing, and produce the filtered curves.
EFFECT: technical result: simplification.
17 cl, 8 dwg
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