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IEEE STD 62-1995: GUIDE FOR DIAGNOSTIC FIELD TESTING OF ELECTRIC POWER APPARATUS-PART 1: OIL FILLED POWER TRANSFORMERS, REGULATORS, AND REACTORS

IEEE STD 62-1995: GUIDE FOR DIAGNOSTIC FIELD TESTING OF ELECTRIC POWER APPARATUS-PART 1: OIL FILLED POWER TRANSFORMERS, REGULATORS, AND REACTORS
Majority of the power transformers used by electric utilities are oil-filled including regulators and reactors. Since it is important to have these power apparatus in their top performance, it is therefore imperative to keep its reliability and useful life to the maximum. The early detection of possible defects is very important in this nature of operation. One way of keeping this requirement met is through regular diagnostic evaluation. By testing and measurements, maintenance engineers can be able to know the present condition of these electrical apparatus. However, in order for them to have a reference point they should first establish a benchmark values that future results could be compared to. With these values a clear evaluation can be obtained and to know how the apparatus is doing. Usually this benchmark value is from the first measurements like during factory testing or commissioning testing.
IEEE STD 62-1995 aims to guide practitioners and users in dealing with their oil-filled power apparatus with regards to diagnostic field testing and interpretations. The figure below shows the summary of the tests as referred to by this standard as the Diagnostic Test Chart. This chart is a representation of the network of test corresponding to the principle categories of systems that constitute the transformer (e.g. windings, bushings, insulating fluids, tap changers, core, tanks and associated devices).
To read the whole IEEE standard document, click the link below to download the pdf file.
IEEE STD 62-1995: GUIDE FOR DIAGNOSTIC FIELD TESTING OF ELECTRIC POWER APPARATUS-PART 1: OIL FILLED POWER TRANSFORMERS, REGULATORS, AND REACTORS PDF DOWNLOAD
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