Apparatus and method for deriving an alternating voltage of a dc voltage with the detection of deviations of the magnetic the same current flux of an electrical transformer

摘要

An apparatus for detecting direct current magnetic flux deflection of an electrical transformer comprising a magnetic detector for generating an output voltage waveform, an integrator connected to the magnetic detector for integrating the output voltage waveform from the magnetic detector. Positive and negative peak value detectors are connected to the integrator for detecting positive and negative peak values of the output voltage waveform integrated by the integrator. A comparator connected to the positive and the negative peak value detectors compares the positive and the negative peak values to provide a peak difference.