| 摘要 |
<p>The transformer is provided with a detection circuit (20) able, with the aid of two test windings (Pt, St) connected in series but in opposition to one another, to measure the voltage offset (volts/turn) caused by the magnetic dispersion between the primary (Pa) and secondary (Sa) windings. When this voltage offset (volts/turn) exceeds a predetermined threshold, a (logic) decision circuit (30) brings about the tripping of the supply to the transformer, isolation of the application circuit and/or the supplying of a monitoring circuit. <IMAGE></p> |
