Electrical Transformers
Zensol new instrument for OLTC testing
Harmonic Problems in Power Transformers
Electrical Transformers
Advancements in Dissolved Gas Analysis: CO/CO2 Ratio
For DGA interpretation, faults identified using hydrocarbon gases are considered more serious if they appear to affect paper insulation. That is made explicit in CIGRE technical brochure 771
[1]. Production of hydrocarbon gases from the oil by electrical or thermal stress does not significantly affect the oil’s function as a coolant or electrical insulator. On the other hand, production of carbon oxide gases from paper insulation raises a concern of paper deterioration. In particular, charring...
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