Transformer testing

Details Transformer testing Transformer testing

1988-02-16

1989-08-15

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324546, 324 55, G01R 3106

Patent

active

048578568

ABSTRACT:
A method of testing transformers and other inductive devices comprises monitoring displacement of a conductor in a winding by injecting a high frequency alternating signal into the conductor while a supply-frequency alternating current is flowing in the conductor and subsequently observing the modulation of the high frequency signal resulting from displacement of the conductor. The high frequency signal has a frequency in the region of the resonance frequency of stray capacitances and inductances exhibited by the winding of which the conductor forms a part. Both the magnitude and the frequency response of the modulation of the high frequency signal may be monitored to determine parameters relating to the displacement of the conductor.

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