Measurement and statistical analysis of Partial Discharges at DC voltage

Klueter, T.; Wulff, J.; Jenau, Frank

doi:10.1109/upec.2013.6714912

Cited by 13 publications

(5 citation statements)

References 5 publications

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“…PD under AC conditions is well understood and is a developed measurement and post analysis process applied to AC equipment. In contrast under DC conditions the same measurement tools are used but the post analysis of PD events is understood in less detail, the main method under investigation being the statistical analysis of the PD activity [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Analyses of partial discharges in dielectric samples under DC excitation

Corr

Siew

2015

2015 50th International Universities Power Engineering Conference (UPEC)

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The main focus of the paper is to develop a better understanding of partial discharges under DC excitation. Partial discharges studied will initially be limited to discharges from well-defined discharge sites. These include corona, surface discharges and internal voids. The samples are first tested under AC excitation as a sense check to ensure the samples yield the expected PD events. The samples were then subjected to DC excitations where the PD events were recorded and subsequently analysed. A number of analysis techniques will be applied to potentially enable the identification and classification of the type of PD event occurring in the DC system under investigation

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Section: Introductionmentioning

confidence: 99%

Analyses of partial discharges in dielectric samples under DC excitation

Corr

Siew

2015

2015 50th International Universities Power Engineering Conference (UPEC)

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“…Despite this, the analysis of DC PD is thought to be a useful indicator over the overall health of a cable and may be a possible indictor of other cables faults that might lead to cable failures. In the past DC PD has been analysed by comparing the discharge amplitudes, and the time between pulses, by these, and other methods, research has determined common patterns for some defect types, including corona, surface and void discharges [5]- [7]. Within cables, partial discharges occur in defects in cable insulation that can be introduced during manufacture, installation or maintenance, void defects are among the most common.…”

Section: Ac Partial Discharge and Testing Methods Are Defined In Iecmentioning

confidence: 99%

Methods of Characterisation of DC Partial Discharge in Polymeric Cable Insulation

Morris

Siew

Given

2018

2018 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)

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Partial discharge monitoring is frequently used in AC cable systems, and there exists a strong desire for the same for DC cables within the electrical power industry, given their recent increased use. However, DC PD is a less well understood phenomenon. This paper provides analysis of three methods of partial discharge characterisation: pulse duration and amplitude analysis, frequency-domain spectra analysis, and partial discharge inception voltage analysis in artificially-created voids in polymeric cable insulation samples (polyethylene and polypropylene) under both AC and positive and negative DC excitations. From these a 'finger-print' of the defects can be determined based on the distribution of energy within the discharge frequency spectrum, and the inception voltage.

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“…Spesifikasi teknis baru (IEC 62478) yang juga mencakup metode listrik non-konvensional di samping teknik akustik saat ini sedang dipertimbangkan. Pada masa lalu Partial discharge telah dianalisis dengan membandingkan discharge amplitudo, dan waktu antara beberapa pulsa, beberapa penelitian telah menemukan pola umum untuk beberapa jenis kerusakan akibat partial discharge termasuk corona pada permukaan peralatan dan pelepasan muatan isolasi pada void [5]- [7] Partial Discharge (PD) menyebabkan kerusakan progresif dari bahan isolasi, efek PD pada kabel tegangan tinggi dan peralatan bisa menyebabkan kegagalan isolasi [8]. Efek komulatif dari PD dalam isolasi padat adalah terjadinya proses pemohonan, peristiwa PD yang berulang menyebabkan kerusakan mekanik dan kimia ireversibel dari bahan isolasi.…”

Section: Pendahuluanunclassified

Pengukuran dan Analisis High Frequency Current Transformer Pendeteksi Partial Discharge

Junaidi

2021

kilat

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The lifetime of high voltage equipment is very dependent on the condition of insulation, poor insulation means the life span of high voltage equipment is getting shorter. Partial Discharge is one of the causes of deterioration of high voltage equipment insulation. The ability to know the phenomenon of partial discharge in equipment becomes very important and adds value to the maintenance of high voltage equipment. Many explanations regarding partial discharge, partial discharge is the lack of uniformity of the electric field in the isolation or dielectric media which will result in the phenomenon of Partial Discharge where this will lead to the failure of the isolation media. Partial Discharge that occurs continuously can cause damage (breakdown) on a high voltage equipment. Therefore, before a high voltage device is used, Partial Discharge detection is necessary. Partial Discharge Detection can use the Partial Discharge measurement circuit. In testing partial discharges can be tested using a sensor with various circuits including High Frequency Current Transformers (HFCT) so that this research will discuss one part of the Partial Discharge measurement circuit, the HFCT detector. Hopefully, the HFCT detector can be further developed and can be used for better partial discharge detection.

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Measurement and statistical analysis of Partial Discharges at DC voltage

Cited by 13 publications

References 5 publications

Analyses of partial discharges in dielectric samples under DC excitation

Analyses of partial discharges in dielectric samples under DC excitation

Methods of Characterisation of DC Partial Discharge in Polymeric Cable Insulation

Pengukuran dan Analisis High Frequency Current Transformer Pendeteksi Partial Discharge

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