Real-time dynamic loading and thermal diagnostic of power transformers.

A comprehensive approach to dynamic loading of power transformers is presented. It is based on the Annex G equations in the latest IEEE Loading Guide. The IEEE work is enhanced through a continuous update of rated temperatures. The algorithm was evaluated with nine transformer-months of real-time fi...

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Bibliographic Details
Published in:	IEEE Transactions on power delivery 18, 1 (2003).
Main Author:	Lachman, M.F
Format:	Article
Language:	English
Subjects:	Annex G equations. IEC thermal models. IEEE Clause 7. IEEE Loading Guide. Ambient temperature. Bushing enclosures. Bushings temperatures. Cooling mode. Dynamic loading. Field observations. Hottest-spot temperatures. Load current. Loss-of-life. Moisture content. Oil-preservation system. Overload. Power transformers. Preload parameters. Rated temperatures. Real time thermal diagnostic. Real-time dynamic loading. Real-time field data. Top-oil temperatures. Voltage.