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Dga interpretation for power transformers
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Power Factor Testing Nov2005 - Doble Engineering Company
www.doble.com• Insulation power factor of transformer and all bushings (C1 and C2) • 10-kV excitation on all taps • Core ground and winding resistance • Oil quality and dissolved gas analysis (DGA). The power factor of the high-voltage winding was elevated. The measured value of …