The Importance of Proper Cooling of Power Transformers

The correct design and operation of the cooling system of a power transformer is very important to maintain the health of the transformer. The design and type of cooling is usually governed by the application of the power transformer and is influenced by power output, location and environmental conditions. The cooling system thus in turn affects the design of the transformer. ...

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Duvals Triangle Method

The Duval Triangle Method makes use of the three combustible gases CH4, C2H4 and C2H2 that are transformed for representation in a triangular plot. The triangle is able to differentiate the fault types partial discharges, electrical faults (high and low energy arcing), and thermal faults (hot spots of various temperature ranges). Each point is derived from the percentage...

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