Cluster Pulse Criteria for Recognition of Partial Discharge
نویسندگان
چکیده
منابع مشابه
Wavelet Analysis Used for Partial Discharge Pattern Recognition
An increasing problem of ageing cable insulation requires a development of certain methods for online conditioning and offline assessment. Thus, Partial Discharge (PD) monitoring is the most effective technique for assessment of insulation condition. PD monitoring and analysis has become imperative for utilities as well as for equipment manufacturers as it causes deterioration of insulation sys...
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Based on the characteristics of partial discharge (PD) defects in gas insulated switchgear (GIS), four typical single defects were designed for the present paper. PD three-dimensional (3D) patterns were constructed based on the ultra high frequency detection systems. The pulse-coupled neural networks (PCNN) and wavelet packet decomposition (WPD) method were used in PD feature extraction. The re...
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متن کاملStudy on time-frequency extractors for partial discharge pulse current used in sequence grouping and identification
This paper introduces a general way to make feature extraction for partial discharge (PD) pulse waveshape used in sequence grouping resorting with equivalent time-frequency method. A digital ac PD pulse detection system with bandwidth of 10 kHz 40 MHz and sampling rate of 100 MS/s is introduced, which was developed to study those feature extractors. Simulation and test results with gas insulate...
متن کاملSelf-Adaptive Morphological Filter for Noise Reduction of Partial Discharge Signals
Partial Discharge assessment in the insulation of high voltage equipment is one of the most popular approaches for prevention of the insulation breakdown. In the procedure of thisassessment, noise reduction of partial discharge signals to get the original PD signal for accurate evaluation is inevitable. This denoising process shall be carried out such a way that the main features of the p...
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ژورنال
عنوان ژورنال: IEEJ Transactions on Fundamentals and Materials
سال: 1993
ISSN: 0385-4205,1347-5533
DOI: 10.1541/ieejfms1990.113.2_103