A Physical Calibrator for Partial Discharge Meters
نویسندگان
چکیده
منابع مشابه
A New Partial Discharge Measuring System Calibrator
A new PD (partial discharge) measuring system calibrator is described. The device, battery operated, may be used either grounded or in a floating position, and generates securely mains-synchronized impulses by capacitive coupling. It allows the determination of the scale factor k and resolution time Tr in PD measuring systems, and it fulfils the requirements of International Standard IEC 60270....
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Insulation is a crucial phenomenon for high voltage apparatus. Partial discharge activity affects the service life of the dielectrics. Therefore partial discharge must be less than a specified value for high voltage equipment. An accurate partial discharge measurement strongly depends on scaling of the measurement systems. It is a general method to use a partial discharge calibrator to calibrat...
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On-line partial discharge (PD) monitoring has existed in some form since the early 1980s. It is the tool of choice to evaluate the health of the stator insulation on large rotating machines. However, analysis of partial discharge results remains difficult to most users and advanced interpretation is usually reserved for experts in the field. While the hardware development has matured, it hasn’t...
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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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Dielectric surfaces exposed to partial discharges (PD) undergo aging, which is reflected by changes in the discharge pulse form. An approach is described in which fuzzy logic and neural networks are used in conjunction with the wavelet transform to identify the parameters in the PD pulse form for the purpose of classifying the aging phenomena due to partial discharge degradation.
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ژورنال
عنوان ژورنال: Energies
سال: 2019
ISSN: 1996-1073
DOI: 10.3390/en12112057