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Dielectric response methods for diagnostics of power transformers.

The dryness and ageing state of the oil-paper insulation is a key factor in both the short and long term reliability of a power transformer since moisture has deleterious effects on dielectric integrity and insulation ageing rates. Today the water content of the cellulose of a transformer in service is determined indirectly via moisture measured from oil samples according to IEC 60422.

File Size: 1,5 MB

Pages NB: 42

Study Committee:  D1 ?

WG (TF): TF D1.01.09

Year: 2004

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