Tag: Power Transformers

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Monitoring the Internal health of Transformer using Dissolve Gas Analyser

In our earlier blog on the transformer, we shared our views on how to detect possible core & winding damage using the Transformer Turns Ratio Meter. The oil which acts as the insulating medium is one of the reasons for internal transformer failure. The oil decomposes mainly due to Thermal, electrical & chemical stress due …

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Transformer Winding Resistance Measurement, OLTC Condition Analysis and Ideal Kit Specifications

Power transformers are one of the most expensive and critical assets of the power sector. In this blog, we will discuss [1] principles of winding resistance measurement, a common transformer test prescribed in various standards such as IEEE C57.12.90-2006 Clause 5, IEC 60076-1 Clause 10.2, IS 2026-1 Clause 10.2; [2] OLTC condition analysis; and [3] …

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