Log in

Relevant bibliographies by topics / Partial discharge (PD) / Journal articles

To see the other types of publications on this topic, follow the link: Partial discharge (PD).

Journal articles on the topic 'Partial discharge (PD)'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Partial discharge (PD).'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Lopatchenko, Gleb, Alexander Groshev, Alexey Lukonin, Denis Kuimov, and Alexander Yurov. "Partial discharges in power transformers." E3S Web of Conferences 583 (2024): 07001. http://dx.doi.org/10.1051/e3sconf/202458307001.

Full text

Abstract:

Tansformers are among the most responsible and expensive elements of the power system, therefore monitoring the technical condition of the transformer is an important and urgent task. One of the signs of aging of insulation in a transformer may be partial discharges (PD), leading to its further failure. The use of monitoring systems based on PD analysis makes it possible to prevent the severe consequences of short circuits in transformers and, as a result, achieve significant economic effects during the operation of controlled high-voltage equipment. The transformer monitoring system based on

APA, Harvard, Vancouver, ISO, and other styles

2

Marskar, Robert. "Towards quantitative partial discharge simulations." Journal of Physics D: Applied Physics 58, no. 18 (2025): 185201. https://doi.org/10.5281/zenodo.15094709.

Full text

Abstract:

This paper computationally investigates partial discharges (PDs) in the form of self-sustained gas discharges. It presents two methods for predictive modeling: (1) a new low-fidelity algorithm for the PD inception voltage is introduced. The method is volume-resolved and describes both the strength of the self-sustained Townsend mechanism as well as the conventional streamer (or bulk) mechanism. It also intrinsically computes the inception region, i.e. the region where a first electron also leads to a discharge. (2) We apply a high-fidelity plasma model based on kinetic Monte Carlo, which self-

APA, Harvard, Vancouver, ISO, and other styles

3

Kozák, Ondřej, and Josef Pihera. "Partial Discharge Analysis and Simulation Using the Consecutive Pulses Correlation Method." Energies 14, no. 9 (2021): 2567. http://dx.doi.org/10.3390/en14092567.

Full text

Abstract:

The behaviour of partial discharge as consequences of an alternating current (AC) is already well defined. AC partial discharges have completely different behaviour, background physics and parameters than partial discharges (PD) under direct current (DC) stress. This paper focuses on the most used and promising evaluation method of the PD DC stress—pulse sequence analysis (PSA). The first step is understanding and verifying the mechanisms and principles of this method. It is provided by well-known fundamentals of AC PD and by comparison with the other diagnostic and fault-locating methods such

APA, Harvard, Vancouver, ISO, and other styles

4

Florkowski, Marek. "Influence of Insulating Material Properties on Partial Discharges at DC Voltage." Energies 13, no. 17 (2020): 4305. http://dx.doi.org/10.3390/en13174305.

Full text

Abstract:

Understanding a partial discharge mechanism at direct current (DC) is an actual research topic that requires both modeling, simulations and measurements. This paper describes an influence of insulating material properties on partial discharges at DC voltage. Modifications of the traditional model reflecting the conditions of partial discharges (PD) inception and post discharge processes at DC voltage have been proposed. The aim was to show the partial discharge mechanisms and draw attention to the role of parameters of insulation materials adjacent to the cavity at DC voltage. The investigatio

APA, Harvard, Vancouver, ISO, and other styles

5

Liang, Liang, Liangliang Yu, Aizezijiang Jiapaer, Changwei Ji, and Wenming Shang. "Classification of Multi-Source Partial Discharge in GIS." Journal of Physics: Conference Series 2774, no. 1 (2024): 012102. http://dx.doi.org/10.1088/1742-6596/2774/1/012102.

Full text

Abstract:

Abstract Partial discharge (PD) analysis is an important method to identify electrical equipment faults. However, due to the influence of environmental electromagnetic interference and other equipment discharges in the power supply circuit during the on-site PD test, the collected PD signal is the combination of various PD and noise, which makes it challenging to identify the type or source of on-site partial discharge. A multi-source PD classification method based on the multiple threshold and K-means clustering algorithm is pro-posed to solve this problem. First, wavelet transform with an im

APA, Harvard, Vancouver, ISO, and other styles

6

Gardan, Giovanni, and Gian Carlo Montanari. "Partial Discharge Inception Modelling of Insulating Materials and Systems: Contribution of Electrodes to Electric Field Profile Calculation." Applied Sciences 14, no. 1 (2023): 201. http://dx.doi.org/10.3390/app14010201.

Full text

Abstract:

Partial discharge inception modeling is a powerful tool for material investigation and insulation system design in order to achieve the objective of PD-free operation of insulation systems. Model validation, however, requires accurate and repeatable testing conditions, and the aim of this paper is to look at the influence of electrodes and electric field simulation on partial discharge inception model prediction accuracy. Awareness of the geometric electrode configuration is important to forecast both the typology of discharge and the corresponding partial discharge inception voltage value. It

APA, Harvard, Vancouver, ISO, and other styles

7

Polyakov, D. A., N. A. Tereshchenko, and K. I. Nikitin. "Research of partial discharge characteristics features in bushings." Omsk Scientific Bulletin, no. 180 (2021): 26–32. http://dx.doi.org/10.25206/1813-8225-2021-180-26-32.

Full text

Abstract:

The paper is devoted to partial discharge measurement and analysis in switchgear bushings. PD bushing structure analysis is described to assess possible defect sources in bushings. An experimental 10 kV bushing sample with the natural defect is obtained from the bushings’ manufacturer. It is tested using the PD measurement technique. Test results showed significant PD intensity at voltages from 12 kV and higher. We have an assumption that a part of registered discharges occurred in the air close to the high voltage electrode sharp edges. To check this assumption we grind them off and repeated

APA, Harvard, Vancouver, ISO, and other styles

8

Steiner, J. P. "Partial discharge. IV. Commercial PD testing." IEEE Electrical Insulation Magazine 7, no. 1 (1991): 20–33. http://dx.doi.org/10.1109/57.64967.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Liu, Bin, Jing De An, Wei Dong Zhang, and You Lin Xu. "A Design of Multi-Band UHF Sensor for Partial Discharge Detection." Applied Mechanics and Materials 394 (September 2013): 435–40. http://dx.doi.org/10.4028/www.scientific.net/amm.394.435.

Full text

Abstract:

The selection and design of the sensor is one of the key technologies for UHF PD detection. The UHF sensors popular used in PD detection and location in substation are partial discharge UHF sensor are usually ultra wideband antenna in the frequency range of 200 MHz to 1.5 GHz, which contains interference from communication signals. Accordingly, in order to improve the detection sensitivity and the signal-to-noise ratio, a kind of multi-band UHF narrowband sensor is proposed and designed in accordance with the principles of the loop antenna for PD detection. The proposed frequency resonant band

APA, Harvard, Vancouver, ISO, and other styles

10

W. Ren, L., M. S. Abd Rahman, and A. Mohd Ariffin. "Classification of Partial Discharge Sources using Statistical Approach." Indonesian Journal of Electrical Engineering and Computer Science 6, no. 3 (2017): 537. http://dx.doi.org/10.11591/ijeecs.v6.i3.pp537-543.

Full text

Abstract:

<p>In high-voltage (HV) power equipment, degradation of insulation has been main concern for protection of equipment. This is due to occurrence of partial discharges (PD) activity within HV insulating systems which can be initiated from different types of local internal or external defects. Thus, partial discharge (PD) identification and classification are important for diagnostic insulation systems problems in order to ensure maintenance process can be carried out effectively and hence improve reliability and durable operation of HV equipment. In this work, the relation of the observabl

APA, Harvard, Vancouver, ISO, and other styles

11

Komarov, I. V., D. A. Polyakov, and K. I. Nikitin. "Partial discharges characteristics study in XLPE cable insulation with multiple defects." Omsk Scientific Bulletin, no. 180 (2021): 33–40. http://dx.doi.org/10.25206/1813-8225-2021-180-33-40.

Full text

Abstract:

The paper simulates the electric field intensity picture in the cable with one and several defects. Modeling has shown that the presence of several closely spaced defects does not lead to an increase in the electric field intensity in comparison with one defect. On the basis of experimental studies, an analysis of defects' number influence on various parameters of partial discharges (PD) is performed. Artificial defects are created in the area of the XLPE-insulated cable termination. The following parameters of PD are measured: the magnitude of the apparent charge, the power (intensity) of par

APA, Harvard, Vancouver, ISO, and other styles

12

Myneni, Sukesh Babu, and Gian Carlo Montanari. "Estimation of the Partial Discharge Inception Voltage of Electrical Asset Components at Variable Environmental Pressure: A Modelling Approach." Energies 17, no. 21 (2024): 5507. http://dx.doi.org/10.3390/en17215507.

Full text

Abstract:

Since partial discharges, PD, are a major accelerated degradation mechanism of organic electrical insulation systems, measuring partial discharge inception voltage, PDIV, of electrical asset components in aviation and aerospace is a fundamental tool to cope with life, safety, and reliability requirements. Partial discharge phenomenology and inception voltage depend on pressure, specifically, PDIV decreases with pressure. To avoid PD inception during aircraft or aerospace vehicle operation, the value of PDIV must be known at any pressure that electrical asset components will experience. However

APA, Harvard, Vancouver, ISO, and other styles

13

Khamlichi, Abderrahim, Fernando Garnacho, and Pascual Simón. "New Synthetic Partial Discharge Calibrator for Qualification of Partial Discharge Analyzers for Insulation Diagnosis of HVDC and HVAC Grids." Sensors 23, no. 13 (2023): 5955. http://dx.doi.org/10.3390/s23135955.

Full text

Abstract:

A synthetic partial discharge (PD) calibrator has been developed to qualify PD analyzers used for insulation diagnosis of HVAC and HVDC grids including cable systems, AIS, GIS, GIL, power transformers, and HVDC converters. PD analyzers that use high-frequency current transformers (HFCT) can be qualified by means of the metrological and diagnosis tests arranged in this calibrator. This synthetic PD calibrator can reproduce PD pulse trains of the same sequence as actual representative defects (cavity, surface, floating potential, corona, SF6 protrusion, SF6 jumping particles, bubbles in oil, etc

APA, Harvard, Vancouver, ISO, and other styles

14

Villibor, Jansen Paula, Gustavo Paiva Lopes, Estácio Tavares Wanderley Neto, Matheus Penha Pereira, and Gabriel Henrique Faria. "Software Development for Partial Discharges Separation and Identification in the Presence of Multiple Partial Discharge Activities." Revista Científica Universitas 11, no. 2 (2024): 85–96. https://doi.org/10.29327/2276101.11.2-7.

Full text

Abstract:

Este trabalho apresenta o desenvolvimento de um software para medição, separação e identificação de descargas parciais (PD) para sistemas de medição convencional e não-convencional. Para validar a separação de múltiplas fontes de PD com o T-F Map (Mapa de Tempo-Frequência) os resultados obtidos com o novo software são confrontados com os resultados de um software comercial em medições realizadas no estator de uma máquina rotativa com um sistema de medição convencional de descargas parciais. Ao selecionar clusters (grupos de dados) no T-F Map, o software reconstrói estes clusters em novos sub-p

APA, Harvard, Vancouver, ISO, and other styles

15

Polyakov, D. A., N. A. Tereschenko, Ya M. Boyko, and K. I. Nikitin. "INVESTIGATION OF THE EFFICIENCY OF REGISTRATION OF PARTIAL DISCHARGES BY THE OPTICAL METHOD." Dynamics of Systems, Mechanisms and Machines 10, no. 1 (2022): 70–75. http://dx.doi.org/10.25206/2310-9793-2022-10-1-70-75.

Full text

Abstract:

The method of partial discharges (PD) diagnostics is used to assess the insulation condition of high-voltage equipment in order to control quality and identify the initial process of its aging. The paper presents methods for measuring PD and describes their main advantages and disadvantages. Particular attention is paid to the optical method of registering PDs. An experimental study was carried out with a cable sample and a glass insulator to measure the PD intensity in defective places and record their optical radiation. Voltage to the tested objects was applied from 0 to 26 kV. To register t

APA, Harvard, Vancouver, ISO, and other styles

16

Adam, Benjamin, and Stefan Tenbohlen. "Classification of Superimposed Partial Discharge Patterns." Energies 14, no. 8 (2021): 2144. http://dx.doi.org/10.3390/en14082144.

Full text

Abstract:

Phase resolved partial discharge patterns (PRPD) are routinely used to assess the condition of power transformers. In the past, classification systems have been developed in order to automate the fault identification task. Most of those systems work with the assumption that only one source is active. In reality, however, multiple PD sources can be active at the same time. Hence, PRPD patterns can overlap and cannot be separated easily, e.g., by visual inspection. Multiple PD sources in a single PRPD represent a multi-label classification problem. We present a system based on long short-term me

APA, Harvard, Vancouver, ISO, and other styles

17

Figueroa Godoy, Fernando, Jacinto Torres Jimenez, Rubén Jaramillo Vacio, Javier Yáñez Mendiola, and José Ángel Colin. "Analysis of Insulating Material of XLPE Cables considering Innovative Patterns of Partial Discharges." Mathematical Problems in Engineering 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/2379418.

Full text

Abstract:

This paper aims to analyze the quality of insulation in high voltage underground cables XLPE using a prototype which classifies the following usual types of patterns of partial discharge (PD): (1) internal PD, (2) superficial PD, (3) corona discharge in air, and (4) corona discharge in oil, in addition to considering two new PD patterns: (1) false contact and (2) floating ground. The tests and measurements to obtain the patterns and study cases of partial discharges were performed at the Testing Laboratory Equipment and Materials (LEPEM) of the Federal Electricity Commission of Mexico (CFE) us

APA, Harvard, Vancouver, ISO, and other styles

18

Chen, Xin Gang, Yang Yang Zhao, Chao Feng Zhang, and Xiao Xiao Tian. "Partial Discharge Pattern Recognition of Power Transformer by Using Information Fusion." Applied Mechanics and Materials 128-129 (October 2011): 933–37. http://dx.doi.org/10.4028/www.scientific.net/amm.128-129.933.

Full text

Abstract:

As one of the most important equipments in the power system, partial discharge (PD) affects the transformer’s properties in a long-term period and the partial discharge pattern recognition has most important sense. In the paper,3 kinds of experimental models simulating discharges were designed and model experiments were performed. Based on this, a transformer partial discharge pattern recognition system based on information fusion technology is developed. the finally experiments show that: information fusion have enough ability to recognize different types of partial discharge.

APA, Harvard, Vancouver, ISO, and other styles

19

Chong, Wan Xin, Jee Keen Raymond Wong, Azil Illias Hazlee, Weng Kin Lai, and Kah Haur Yiauw. "Effects of shorter phase-resolved partial discharge duration on PD classification accuracy." International Journal of Power Electronics and Drive System (IJPEDS) 11, no. 1 (2020): 326–32. https://doi.org/10.11591/ijpeds.v11.i1.pp326-332.

Full text

Abstract:

Partial discharge (PD) pattern recognition is useful to diagnose insulation condition. PD measurement data is commonly represented in phase-resolved partial discharge (PRPD) format. PRPD is useful as it provides a visible pattern for different PD source and various features can be extracted for PD pattern recognition. Shorter PRPD duration will enable more training data but the information in each data is less and vice versa. This works aims to investigate the effects of using very short duration PRPD data on the accuracy of PD pattern recognition. The results conclude that machine learning mo

APA, Harvard, Vancouver, ISO, and other styles

20

Arikan, Kemal, Emel Önal, and Serhat Şeker. "Time-Frequency Analysis of Partial Discharge Current Pulses in Different Gas Environment under Lightning Impulse." Measurement Science Review 20, no. 4 (2020): 196–201. http://dx.doi.org/10.2478/msr-2020-0024.

Full text

Abstract:

AbstractThis paper deals with a time-frequency analysis of the measured partial discharge (PD) currents in different insulation gases. These gas environments consist of a pure SF6 (sulphur-hexafluoride) and sulphur-hexafluoride and nitrogen (1 % SF6 + 99 % N2) mixture, under both positive and negative lightning impulse (LI) voltage stresses. In this study, the short time Fourier transform was used to extract the time-frequency information of PDs for different gases at different pressures, and these results were compared to each other. Thus, the relationship between the time, amplitude, and fre

APA, Harvard, Vancouver, ISO, and other styles

21

Kim, Jiil, and Cheong Hee Park. "Partial Discharge Detection Based on Anomaly Pattern Detection." Energies 13, no. 20 (2020): 5444. http://dx.doi.org/10.3390/en13205444.

Full text

Abstract:

Recently, a lot of research has been carried out on partial discharge (PD) using machine learning techniques. However, most of these studies have focused on the identification of multiple PD sources, PD classification, or denoising PD measurements, with few studies on real-time PD occurrence detection. In this paper, we propose a method to detect PD occurrence based on anomaly pattern detection. The proposed method consists of three steps. First, in the data preprocessing step, the pulse sequence data are converted into a feature vector stream by applying a sliding window technique. In the nex

APA, Harvard, Vancouver, ISO, and other styles

22

Kaziz, Sinda, Mohamed Hadj Said, Antonino Imburgia, et al. "Radiometric Partial Discharge Detection: A Review." Energies 16, no. 4 (2023): 1978. http://dx.doi.org/10.3390/en16041978.

Full text

Abstract:

One of the most common failures or breakdowns that can occur in high-voltage (HV) equipment is due to partial discharges (PDs). This occurs as a result of inadequate insulation, aging, harsh environmental effects, or manufacturing flaws. PD detection and recognition methods have gained growing attention and have seen great progress in the past decades. Radiometric methods are one of the most investigated detection approaches due to their immunity to electromagnetic interference (EMI) and their capabilities to detect and locate PD activities in different applications such as transformers, cable

APA, Harvard, Vancouver, ISO, and other styles

23

Subramaniam, Sundaramahalingam, Janani Thiruvelmurugan, and Shanmathi Anbuselvan. "Study on the Effect of Void Geometry and Location on Electric Field Distribution and Partial Discharges in HVDC Cables." E3S Web of Conferences 455 (2023): 02009. http://dx.doi.org/10.1051/e3sconf/202345502009.

Full text

Abstract:

Nowadays HVDC transmission systems are preferred over HVAC systems because of their less power loss and high reliability. In the HVDC cable transmission system, there is a problem of Partial Discharges (PD) occurring due to cavities of the dielectrics in HVDC cables. The distribution of the electric field may change in the presence of partial discharge, which has an impact on how the electric system normally functions. Under DC conditions, partial discharge characteristics are influenced by the electric field distribution and electrical conductivity. Discharges tend to occur quickly when the c

APA, Harvard, Vancouver, ISO, and other styles

24

Pevtsov, Valeria, Nathan D. Jacob, and Behzad Kordi. "Evaluation of Erosion Discharge Characteristics in Inclined Plane Tracking and Erosion Tests on Silicone Rubber under AC and DC Voltages." Energies 14, no. 19 (2021): 6051. http://dx.doi.org/10.3390/en14196051.

Full text

Abstract:

This paper investigates partial discharge (PD) characteristics that lead to the erosion of silicone rubber (SR) polymer under AC stress and DC stress of both polarities. The experiments are performed on high temperature vulcanized (HTV) SR material samples. The inclined plane test apparatus, constructed in accordance with IEC 60587 requirements, is employed to produce the surface partial discharges and the resulting accelerated aging of the specimens. Two commercial instruments are used to obtain the PD data. A concurrent analysis of visual observations of discharge and PD data is performed to

APA, Harvard, Vancouver, ISO, and other styles

25

I., F. Radzi, H. Nik Ali N., Rameli N., et al. "Partial discharge detection device using ultrasonic sensor on medium voltage XLPE cable." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 17, no. 2 (2020): 886–94. https://doi.org/10.11591/ijeecs.v17.i2.pp886-894.

Full text

Abstract:

There are many methods that have been studied by earlier researchers in order to detect the acoustic properties of Partial Discharge (PD) emitted by PD sources. One of the methods known as ultrasonic sensing on medium voltage Cross-Linked Polyethylene (XLPE) cable was adopted to detect partial discharges on commercial applications, usually by using Acoustic Emission (AE) sensors. This paper presents the processes of designing a PD sensor to detect the acoustic properties of the partial discharges on medium voltage XLPE cable. This PD sensor method works by detecting the partial discharges occu

APA, Harvard, Vancouver, ISO, and other styles

26

Dong, Yue, Yong Qian, Hai Feng Ye, and Xiu Chen Jiang. "FEM Simulation of PD Acoustic Signal Propagation in Transformers." Applied Mechanics and Materials 448-453 (October 2013): 2278–85. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.2278.

Full text

Abstract:

In order to study propagation process of partial discharge ultrasonic signal in power transformer, the finite element method is used for simulation modeling and calculation. Ultrasonic waves can be activated by partial discharges (PD) in power transformers. The ultrasonic method is used for evaluating the insulation condition of power transformers by analyzing the partial discharge signals information which is detected by AE sensors. Compared with other diagnostic methods the AE method causes relatively low disturbance, and measuring apparatus is simple and easy to use. This technique is nonin

APA, Harvard, Vancouver, ISO, and other styles

27

Elena-Denisa, Burada, Popescu Mihaela, Nicoară Tania, Voicu Viorica, and Dumbravă Ionel. "Assessment of Corona with Partial Discharge and Radio Interference Measurement Circuits." Annals of the University of Craiova Electrical Engineering Series 48 (January 23, 2025): 39–45. https://doi.org/10.52846/aucee.2024.06.

Full text

Abstract:

The paper presents how the physical phenomenon, corona discharge, can be assessed using circuits for measuring partial discharges (PD) and radio disturbances. In test circuits for PD measurement, corona discharges may also be present as a disturbing element at certain test voltages, even if all measures are taken to avoid them. The main features and differences between the PD measurement circuit and radio interference voltage measurement circuit are presented, which include the measurement systems and their calibration methods. So for the PD measurement are presented calibration of the PD circ

APA, Harvard, Vancouver, ISO, and other styles

28

He, Shifang. "Transformers partial discharge pattern recognition based on Vision Transform." Journal of Physics: Conference Series 2903, no. 1 (2024): 012010. https://doi.org/10.1088/1742-6596/2903/1/012010.

Full text

Abstract:

Abstract The secure and stable operation of modern electricity systems depends on the reliable performance of transformers. Partial discharge (PD), as a common fault phenomenon in transformers, has a significant impact on its performance and lifetime. Traditional PD identification methods rely on manual feature extraction and lack generalization capability. In addition, this paper proposes a partial discharge recognition method based on Vision Transformer (ViT), which utilizes the self-attention mechanism of the visual transformer to accurately recognize partial discharges in transformers. Thr

APA, Harvard, Vancouver, ISO, and other styles

29

Koryashov, Ilia A., Vladimir V. Lopatin, Andrey A. Bukharkin, and Sergey M. Martemyanov. "Partial Discharges Characteristics in Oil Shale of Various Deposits." Advanced Materials Research 1040 (September 2014): 726–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1040.726.

Full text

Abstract:

Attention to oil shale processing as unconventional energy source grows significantly. Electrical discharge phenomena application allows creating new efficient technology. Dynamics of PD basic characteristics of voltage in oil shale is described in this paper. Thermodestruction with abnormally high rate is occurred and caused by PD activity. Critical PD incept under low electrical intensity due to oil shale porosity, anisotropy and heterogeneity. PD induce treeing with following electrothermal breakdown. Organic content has influence on electrical discharges phenomena in oil shale. Therefore,

APA, Harvard, Vancouver, ISO, and other styles

30

Ahmed, S. Haiba, A. El-Faraskoury Adel, D. El-Koshairy Ahmed, and M. Halawa Mamdouh. "Partial discharge measurements for investigating defected solid dielectrics." TELKOMNIKA (Telecommunication, Computing, Electronics and Control) 19, no. 6 (2021): 2000–2008. https://doi.org/10.12928/telkomnika.v19i6.20362.

Full text

Abstract:

Insulation system in high voltage power equipment plays an important role for the reliability of the electric power system. So, it is necessary to assess its performance to prevent any sudden interruption in the power system. Partial discharge (PD) in solid dielectrics could occur due to the presence of a cavity or a crack within the insulating material which could be formed during manufacturing, installing or/and operating conditions. Since internal cavities are the main source of the PD activities, they can lead to causing deterioration of the insulation system and consequently a complete fa

APA, Harvard, Vancouver, ISO, and other styles

31

Sowndarya, S., and Sujatha Balaraman. "Diagnosis of Partial Discharge in Power Transformer using Convolutional Neural Network." March 2022 4, no. 1 (2022): 29–38. http://dx.doi.org/10.36548/jscp.2022.1.004.

Full text

Abstract:

In an electric power system, power transformers are essential. Transformer failures can degrade the quality of the power and create power outages. Partial Discharges (PD) are a condition that, if not adequately monitored, can cause power transformer failures. This project addresses the diagnosis of PD in power transformer using the Phase Amplitude (PA) response of PRPD (Phase-Resolved Partial Discharge) patterns recorded using PD Detectors. It is a widely used pattern for analysing Partial Discharge. A Convolutional Neural Network (CNN) is used to classify the type of PD defects. The PRPD patt

APA, Harvard, Vancouver, ISO, and other styles

32

Yang, Yan, Xiao Feng Chen, and Qing Liu. "Development of GIS PD Location System Based on LabVIEW." Advanced Materials Research 1044-1045 (October 2014): 1469–72. http://dx.doi.org/10.4028/www.scientific.net/amr.1044-1045.1469.

Full text

Abstract:

On-line detecting partial discharge inside GIS and locating the source of partial discharge spatially can discover the premonition of GIS insulation defects. This article introduces a system for partial discharge on-line detection and source locating, which is based on the hardware consisting essentially of ultrasonic sensors, prepositive signal amplifiers, a TDS3034C oscilloscope and a laptop. The system is a virtual instrument based on LabVIEW platform, and it can sample the ultrasonic signals generated by partial discharge in real time, and provide a friendly human-computer interaction inte

APA, Harvard, Vancouver, ISO, and other styles

33

Wang, Disheng, Lin Du, and Chenguo Yao. "Statistical Study on Space Charge effects and Stage Characteristics of Needle-Plate Corona Discharge under DC Voltage." Energies 12, no. 14 (2019): 2732. http://dx.doi.org/10.3390/en12142732.

Full text

Abstract:

The air’s partial discharges (PD) under DC voltage are obviously affected by space charges. Discharge pulse parameters have statistical regularity, which can be applied to analyze the space charge effects and discharge characteristics during the discharge process. Paper studies air corona discharge under DC voltage with needle-plate model. Statistical rules of repetition rate (n), amplitude (V) and interval time (∆t) are extracted, and corresponding space charge effects and electric field distributions in PD process are analyzed. The discharge stages of corona discharge under DC voltage are di

APA, Harvard, Vancouver, ISO, and other styles

34

Polyakov, D. A., N. A. Tereschenko, I. V. Komarov, K. I. Nikitin, and U. V. Polyakova. "Investigation characteristics of partial discharges in artificial defects of power transmission lines." Omsk Scientific Bulletin, no. 174 (2020): 63–68. http://dx.doi.org/10.25206/1813-8225-2020-174-63-68.

Full text

Abstract:

The article describes the study of the characteristics of partial discharges (PD) in various types of artificial defects in cable lines. A total of 13 types of insulation defects are considered. The PD measurements are carried out using a high AC voltage source and a commercial PD recorder. For each type of defect, diagrams of the amplitude-phase distribution of PD (APDPD), the average value of the apparent discharge, and the PD intensity are obtained. The results of the study show that most of the defects of insulators of overhead power lines have a relatively high intensity of partial discha

APA, Harvard, Vancouver, ISO, and other styles

35

Wang, Wenqiang, and Zhen Shi. "A Finite Element Model of Partial Discharge in Solid Medium." Journal of Physics: Conference Series 2087, no. 1 (2021): 012066. http://dx.doi.org/10.1088/1742-6596/2087/1/012066.

Full text

Abstract:

Abstract The mechanism of partial discharge(PD) is the theoretical basis of the PD detection, insulation monitoring and risk assessment. The finite element analysis of partial discharge is an effective measure to study the characteristics of PD. In this work, a physical model of PD of a gas gap in solid dielectric using finite element analysis (FEA) method has been developed to determine the relationship between the inception electric field with different applied stresses, the cavity diameter and air pressure has been considered as the physical parameters that affect PD characteristics. The ch

APA, Harvard, Vancouver, ISO, and other styles

36

Sekatane, Permit Mathuhu, and Pitshou Bokoro. "Partial Discharge Localization through k-NN and SVM." Energies 16, no. 21 (2023): 7430. http://dx.doi.org/10.3390/en16217430.

Full text

Abstract:

Power transformers are essential for the distribution and transmission of electricity, but they are prone to degradation due to faults early on. Partial Discharge (PD) is the most significant pointer of insulation breakdown in high-voltage apparatus. Dissolved Gas Analysis (DGA) is a commonly used technique for detecting and diagnosing PD. However, DGA data often contain missing values, which can significantly affect the accuracy of PD diagnosis. To mitigate the issues of missing values, this paper proposes using the k-Nearest Neighbors (kNN) technique to impute the missing values in the datas

APA, Harvard, Vancouver, ISO, and other styles

37

Nayli, Adriana Azhar, Mohd Aripin Norazizah, Chin Hock Goh, Ferdous Nayla, and Hamidah Saidatul. "A T-shaped partial ground microstrip patch antenna based UHF sensor for partial discharge detection." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 2 (2020): 704–11. https://doi.org/10.11591/ijeecs.v20.i2.pp704-711.

Full text

Abstract:

Continuous partial discharge (PD) monitoring and early PD detection is important in making sure the necessary preventative measures can be taken accordingly. This paper proposed a T-shaped partial ground microstrip patch antenna that is able to detect PD signal within the UHF range. The antenna was designed and simulated using CST Microwave Studio. The antenna was then fabricated using FR4 substrate material and tested for reception test. The simulation results and the analysis from the fabricated antenna confirmed that the proposed antenna able to detect PD signal at UHF range (specifically a

APA, Harvard, Vancouver, ISO, and other styles

38

Yang, Jing Gang, Yong Yong Jia, Zhi Cheng Zhou, and Jun Hao Li. "The Measurement System of Partial Discharge under Impulse Voltage." Applied Mechanics and Materials 543-547 (March 2014): 1046–49. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.1046.

Full text

Abstract:

Partial discharge (PD) is the important detection parameter for power equipment, with the development of high voltage test technology, PD detection under impulse voltage is more attention. In order to detect the partial discharge signal under the impulse voltage, this paper designs a high-frequency current sensor and broadband measurement impedance. A set of partial discharge measurement system under impulse voltage is built up. The frequency characteristics of current sensor and measurement impedance are detected. In order to test the measurement system, the PD signals of a needle defect unde

APA, Harvard, Vancouver, ISO, and other styles

39

Nur, Amirah Othman, Zainuddin Hidayat, Aman Aminuddin, Abd Ghani Sharin, and Sutan Chairul Imran. "The Correlation between Surface Tracking and Partial Discharge Characteristics on Pressboard Surface Immersed in MIDEL eN." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 2 (2017): 631–40. https://doi.org/10.11591/ijece.v7i2.pp631-640.

Full text

Abstract:

This paper presents the investigation of the surface tracking on pressboard surface immersed in MIDEL eN oil. In this work, the development of surface discharge was analyzed by correlating the visual records of surface tracking on impregnated pressboard and the partial discharge (PD) activities. The PD activities during the surface tracking process were analyzed in terms of Phase Resolved Partial Discharge (PRPD) patterns. Throughout the experiment, surface discharge is found as the development of tree-like patterns in the form of white marks occurring on the oil-pressboard interface. This phe

APA, Harvard, Vancouver, ISO, and other styles

40

Zhang, Wei Dong, Qing Liu, Nan He, and Jian Wen Wang. "Typical PD Type of GIS, Transformer, Switchgear and other Substation Equipment." Advanced Materials Research 1044-1045 (October 2014): 893–97. http://dx.doi.org/10.4028/www.scientific.net/amr.1044-1045.893.

Full text

Abstract:

Most high-voltage faults are caused by the insulation degradation of electrical equipment, while partial discharge is the main reason of insulation breakdown of electrical equipment. This paper introduces partial discharge types of GIS, transformer, switchgear and other substation equipment based on the study of partial discharge types and summarizes five types of partial discharge of substation equipment, namely: spike discharge, free particle discharge, insulation defects discharge, surface discharge and suspended click discharge.

APA, Harvard, Vancouver, ISO, and other styles

41

Junaidi, Andi. "Analisis RC Detector Sebagai Sensor Partial Discharge." KILAT 10, no. 1 (2021): 200–207. http://dx.doi.org/10.33322/kilat.v10i2.986.

Full text

Abstract:

Partial Discharge is a localized electric discharge that only partially connects insulation between conductors, and can appear parallel or not to the conductor. Partial discharge (PD) has long been recognized as an important indication of the state of isolation in high voltage equipment. By measuring PD, a diagnosis of the degree of degradation or deterioration in the isolation conditions of a high voltage device can be determined. Partial Discharge that occurs continuously can cause damage (breakdown) on a high voltage equipment. Therefore, before a high voltage device is used, Partial Discha

APA, Harvard, Vancouver, ISO, and other styles

42

Yang, Yan, Qian Wang, Gao Lin Wu, Kai Pang, Qian Bo Xiao, and Peng Lu Gao. "Research on Separation of PD Signals Originated from Different Sources in Substation." Applied Mechanics and Materials 492 (January 2014): 412–17. http://dx.doi.org/10.4028/www.scientific.net/amm.492.412.

Full text

Abstract:

The existing system of partial discharge location in substation utilizes Omni-directional UHF sensors array which can achieve single-source partial discharge source location. But for multi-source UHF partial discharge signals, the system is inaccurate and can’t distinguish types of partial discharge. This paper proposed to the method multi-source partial discharge signals acquisition and separation based on different characteristics of different types of UHF partial discharge signals in the time domain and frequency domain. Through continuously collected and stored UHF partial discharge pulse

APA, Harvard, Vancouver, ISO, and other styles

43

Ardiansyah, Neris Peri, and Resa Pramudita. "KARAKTERISTIK SURFACE PARTIAL DISCHARGE DI SEKITAR ANTARMUKA PCB PADA PELAT-PELAT ELEKRODA PADA ISOLASI UDARA DAN MINYAK." Jurnal Ilmiah Teknologi Infomasi Terapan 6, no. 2 (2020): 65–73. http://dx.doi.org/10.33197/jitter.vol6.iss2.2020.373.

Full text

Abstract:

Penggunaan peralatan tegangan tinggi pada konverter elektronik daya atau modul daya memiliki pengaruh terhadap sistem isolasi peralatan yang digunakan. Efek yang dihasilkan adalah pelepasan sebagian atau partial discharge (PD), dimana hal tersebut depengaruhi oleh bentuk tegangan, yang mana fenomena PD ini adalah awal mula terjadinya kegagalan dalam suatu peralatan. Pada penelitian ini dilakukan Pengukuran PD dengan mengacu pada Standar IEC 60270 yang menggunakan metode elektrik sebagai pengukuran yang digunakan untuk pengujian PD pada bahan PCB dengan alat ukur yang digunakan adalah RC detekt

APA, Harvard, Vancouver, ISO, and other styles

44

Chan, Jun Qiang, Wong Jee Keen Raymond, Hazlee Azil Illias, and Mohamadariff Othman. "Partial Discharge Localization Techniques: A Review of Recent Progress." Energies 16, no. 6 (2023): 2863. http://dx.doi.org/10.3390/en16062863.

Full text

Abstract:

Monitoring the partial discharge (PD) activity of power equipment insulation is crucial to ensure uninterrupted power system operation. PD occurrence is highly correlated to weakened insulation strength. If PD occurrences are left unchecked, unexpected insulation breakdowns may occur. The comprehensive PD diagnostic process includes the detection, localization, and classification of PD. Accurate PD source localization is necessary to locate the weakened insulation segment. As a result, rapid and precise PD localization has become the primary focus of PD diagnosis for power equipment insulation

APA, Harvard, Vancouver, ISO, and other styles

45

Aakre, T. G., R. Skattenborg, and E. Ildstad. "Limitations Regarding Use of the ABC-Model for Interpretation of Partial Discharge Measurements." Proceedings of the Nordic Insulation Symposium, no. 26 (August 5, 2019): 10–15. http://dx.doi.org/10.5324/nordis.v0i26.3267.

Full text

Abstract:

The main purpose of the work presented here is to facilitate use of partial discharge (PD) measurements as a diagnostic tool for condition assessment of hydropower generator bars. The main aim of the work is to clarify how measured inception and extinction voltage, detected number and magnitude of PDs relate to the void size and the physical discharge mechanisms in the voids. The laboratory tests were performed on 3 mm thick samples, consisting of three 1 mm thick layers containing a cylindrical disc shaped void in the center of the middle layer. The void diameters varied from 3 to 20 mm. Insu

APA, Harvard, Vancouver, ISO, and other styles

46

Cho, Yong Sung, Tae Yoon Hong, Young Woo Youn, Jong Ho Sun, and Se-Hee Lee. "Study on the Correlation between Partial Discharge Energy and SF6 Decomposition Gas Generation." Energies 13, no. 18 (2020): 4655. http://dx.doi.org/10.3390/en13184655.

Full text

Abstract:

In this paper, the amount of SF6 decomposition gases due to the partial discharge (PD) was studied in the SF6 gas-insulated transformer. The long-term PD degradation experiment was performed while controlling the discharge magnitude using the surface discharge, and the gas generation amount was measured by using gas chromatography for SO2F2, SOF2, SO2, CO, and CF4. In addition, to investigate the relationship between the partial discharge energy and the decomposed gas generation amount, partial discharge energy was calculated by a data processing program and converted to the unit of joule per

APA, Harvard, Vancouver, ISO, and other styles

47

Sinaga, Herman Halomoan. "Fractal Hilbert sensor to detect partial discharge on transformer." Journal of Engineering and Scientific Research 1, no. 2 (2020): 94. http://dx.doi.org/10.23960/jesr.v1i2.31.

Full text

Abstract:

The design of fractal Hilbert sensor is presented in this paper. The sensor is intended to detect partial discharge (PD) in transformer insulation. The fractal Hilbert sensor designed using 4 order fractal and etching on single layer PCB board. The Hilbert fractal type is chosen as this type of sensor can be built on smaller area compare to other types. The sensor overall dimension is limited to 5x5 cm as it is proposed to be use to detect the PD presence in transformer. The sensor sensitivity is tested using a closed type TEM cell. After the sensitivity of the sensor is tested the sensor then

APA, Harvard, Vancouver, ISO, and other styles

48

Havunen, Jussi, and J. Hällström. "Precision Calibration System for Partial Discharge Calibrators." Proceedings of the Nordic Insulation Symposium, no. 26 (August 5, 2019): 6–9. http://dx.doi.org/10.5324/nordis.v0i26.3264.

Full text

Abstract:

Partial discharge calibrators need to be periodically calibrated traceable to national standards. VTT MIKES, the National Metrology Institute (NMI) of Finland, has official expertise to calibrate the apparent charge of PD calibrators from 1 pC to 100 nC according to IEC 60270. Recently, VTT MIKES has developed techniques to measure charges as low as 0.01 pC with 3 % uncertainty (k = 2). VTT MIKES has participated to an intercomparison of four NMI’s in 2018 and the results indicate that VTT MIKES can both expand their official measurement capabilities and lower their uncertainties. This paper p

APA, Harvard, Vancouver, ISO, and other styles

49

Yang, Yuan, Jian Gang Bi, Hong Jie Wang, and Nan Meng. "Study of the Ultrasonic Characteristics of Typical Partial Discharge on GIS." Advanced Materials Research 753-755 (August 2013): 2200–2207. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.2200.

Full text

Abstract:

This Paper studied the typical PD in GIS by ultrasonic method. A GIS PD simulating and testing system is established, including a PD simulating system, an ultrasonic detecting system and a conventional pulse current method measurement system. The thesis focuses on four typical kinds of PD signals in GIS, including metal particles, bad contacts on high and grounding potential conductor, the protrusion on the high potential conductor. The statistics characteristics are obtained which include N-Φ spectrogram (relationship between discharge frequency and discharge phase Spectrogram) and Umax-Φ spe

APA, Harvard, Vancouver, ISO, and other styles

50

Thango, Bonginkosi A. "Interpretation of Partial-Discharge-Activated Frequency Response Analysis for Transformer Diagnostics." Machines 13, no. 4 (2025): 300. https://doi.org/10.3390/machines13040300.

Full text

Abstract:

This paper introduces a novel diagnostic approach called partial-discharge-activated impulse frequency response analysis (PD-IFRA), developed to overcome the limitations of conventional frequency response analysis (FRA) in detecting partial discharges (PDs) in power transformers. While traditional FRA with low-impulse-voltage excitation (LIVE) effectively identifies mechanical deformations, inter-turn shorts, and insulation faults, it fails to detect incipient PD activity since PD phenomena require excitation beyond the PD inception voltage (PDIV) to initiate. This study proposes, for the firs

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!