Interpretation of Partial Discharge Quantities as Measured at the Terminals of HV Power Transformers
- 1 August 1986
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electrical Insulation
- Vol. EI-21 (4), 629-638
- https://doi.org/10.1109/TEI.1986.348968
Abstract
The paper discusses the application of signal processing techniques in the interpretation of partial discharge (PD) pulses as detected at the terminals of power transformers. Special consideration is given to the concept of PD energy and to the effect of waveshapes. Examples are included of FFT analyses of PD waves as stored in digitized transient recorders during HV tests. The possible relevance of the frequency spectra in the assessment of dielectric damage is considered, together with associated circuit effects. A predominant factor in transformer testing is still the need for satisfactory PD location methods: a description is given of experimental techniques using conventional discharge detectors and a computer-based measurement system.Keywords
This publication has 6 references indexed in Scilit:
- Partial Discharge Automatic Monitor for Oil-Filled Power TransformerIEEE Transactions on Power Apparatus and Systems, 1984
- Fundamental Limitations in the Measurement of Corona and Partial DischargeIEEE Transactions on Electrical Insulation, 1982
- Relationship between various measurement techniques for void dischargesIEE Proceedings A Physical Science, Measurement and Instrumentation, Management and Education, Reviews, 1982
- On-Line Digital Computer System for Measurementof Partial Discharges in Insulation StructuresIEEE Transactions on Electrical Insulation, 1976
- Discharge detection in high-voltage power transformersProceedings of the Institution of Electrical Engineers, 1970
- Improved methods of test for the insulation of electrical equipmentProceedings of the IEE - Part IIA: Insulating Materials, 1953