1. Transfer function approach of the debye model for estimating paper moisture in a power transformer.
- Author
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Kumar, Ritesh, Shiva, Chandan Kumar, Rangarajan, Shriram S., Jha, Shankaranand, and Vedik, B.
- Subjects
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TRANSFER functions , *POWER transformers , *POWER resources , *DIELECTRIC loss , *ELECTRIC power failures , *MOISTURE , *PARTIAL discharges - Abstract
In the event of a power transformer failure, the utility could experience an interruption in its power supply. Many factors, including winding deformations, insulation deterioration, transient and overloaded conditions, etc., can lead to this kind of failure. This research explores the relationship between polarisation and depolarization current (PDC) measured from the oil impregnated paper insulation of a high voltage (HV) power transformer to reveal data about the state of the insulation used in these devices. Paper insulation in a power transformer has been documented to age in a non-uniform fashion. Popular models that can model non-uniform ageing include the conventional Debye model (CDM). In the current study, we employed CDM to foresee the performance of oil-impregnated paper insulation. Further, dielectric loss tan and overall insulation conditions have been explored, with the largest magnitude of Z evaluated from the transfer function (TF) of the CDM model impacting most to the insulation condition and projected moisture present in the insulation paper. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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