Circuit arrangement for large power transformers

Details Circuit arrangement for large power transformers Circuit arrangement for large power transformers

H - Electricity

01

F

323/30

H01F 27/34 (2006.01) H01F 29/02 (2006.01) H01F 29/04 (2006.01) H01G 4/40 (2006.01)

Patent

CA 1239189

Abstract of the Disclosure: A circuit arrangement for large power transformers with a low- voltage winding, a main high-voltage winding and a step winding as well as a step switching device at a Y-point side thereof, includes, at a location between a point connecting the step winding to the high-voltage main winding and the Y-point of the trans- former, a capacitor in series with a resistor is connected elec- trically parallel to respectively-current-carrying steps of the step winding, the capacitor and the resistor being of such di- mensions as to decrease resonance amplitudes of the connecting point to ground, the capacitor being constructed of spirally wound strip lines formed of a resistance alloy, the strip lines being also of such dimensions as to reduce resonance amplitudes of the connecting points.

465731

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