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Transformers: Basics, Maintenance, and Diagnostics

Department of the Interior Bureau of Reclamation April 2005 transformers : Basics, Maintenance, and Diagnostics Department of the Interior Bureau of Reclamation Technical Service Center Infrastructure Services Division Hydroelectric Research and Technical Services Group Denver, Colorado April 2005 transformers : Basics, Maintenance, and Diagnostics iii PREFACE transformers have been used at powerplants since the inception of alternating-current generation, a century ago.

Transformers: Basics, Maintenance, and Diagnostics vii Contents (continued) Page 4. Oil-Filled Transformer Inspections (continued) 4.3 Winding Temperature Thermometers.....

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