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TB254-2004

Dielectric response methods for diagnostics of power transformers.

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基本信息
标准编号: TB254-2004
出版单位:
标准页数:0
标准简介

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.