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The advantage of implementing corrective capacitors mounted directly on the low voltage side of a high voltage power transformer

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2 Author(s)

The authors describe the advantages of implementing corrective capacitors mounted directly on the low voltage side of a high voltage power transformer. These capacitors have two functions, namely: avoiding ferroresonance at the low voltage side; and reducing the inrush currents of a transformer. The elimination of ferroresonance can be achieved by connecting a capacitor of 2μF to earth on the low voltage side of a power transformer. The reduced inrush currents are the result of the limited remanent magnetism in the transformer, due to a switch off with a capacitor mounted directly on the low voltage side. Reduction of the inrush current ensures proper functioning of the differential protection

Published in:

Electricity Distribution, 1993. CIRED. 12th International Conference on

Date of Conference:

17-21 May 1993