scholarly journals Partial Discharge Assessment of XLPE Cable

2019 ◽  
Vol 8 (6) ◽  
pp. 2126-2130
Keyword(s):  
Laboratory Experiments ◽  
Partial Discharge ◽  
Test System ◽  
Cumulative Effects ◽  
Percentage Error ◽  
Reliable Operation ◽  
Operating Life ◽  
Cable Insulation ◽  
Xlpe Cable

Rapid growth in power system has created the opportunity in the field of materials to ensure reliable operation of various equipments throughout their operating life span. Due to the cumulative effects of mechanical, chemical and electrical stresses caused by the partial discharge (PD), insulation gradually degrades. Partial Discharge tests ensure the good quality of cable insulation like cross-linked polyethylene (XLPE) under high voltage conditions. This paper describes the results of a real testing based experiment of Partial Discharge with XLPE cable. Under the application of different voltages, the breakdown level of cable insulation is checked in the laboratory experimental setup. The MATLAB Simulink architecture of test system with PD structure is constructed in correlation with laboratory experiments. The results of both the simulation and the laboratory experiment have been compared in this work. The standard deviation and percentage error are calculated for the simulated and experimental data.

Development of a Portable XLPE Cable Insulation Detection Device

2014 ◽  
Vol 960-961 ◽  
pp. 881-884
Author(s):  
Xiao Guang Xi ◽  
Yu Yan Man ◽  
Chi Zhang ◽  
Ming Lei Wu ◽  
Yan Wei Dong ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Electromagnetic Wave ◽  
Electromagnetic Coupling ◽  
Partial Discharge ◽  
Power Cables ◽  
Cable Insulation ◽  
Xlpe Cable ◽  
Insulation Status

In this article, a portable XLPE cable insulation detection device is introduced. Such a device utilizes electromagnetic coupling, UHF electromagnetic wave and acoustic emission to detect partial discharge signals in power cables. By analyzing the partial discharge signals and cable temperatures, the insulation status of XLPE power cables is judged.

A Novel Oscillation Wave Test System for Partial Discharge Detection in XLPE Cable Lines

2020 ◽  
Vol 35 (4) ◽  
pp. 1678-1684 ◽  
Author(s):  
Guangya Zhu ◽  
Kai Zhou ◽  
Shilin Zhao ◽  
Yuan Li ◽  
Lu Lu
Keyword(s):  
Partial Discharge ◽  
Test System ◽  
Xlpe Cable ◽  
Cable Lines ◽  
Discharge Detection

Investigation of Void Size and Location on Partial Discharge Activity in High Voltage XLPE Cable Insulation

2019 ◽  
Author(s):  
Douglas Aguiar do Nascimento ◽  
Shady S. Refaat ◽  
Ahmad Darwish ◽  
Qasim Khan ◽  
Haitham Abu-Rub ◽  
...  
Keyword(s):  
High Voltage ◽  
Partial Discharge ◽  
Void Size ◽  
Cable Insulation ◽  
Xlpe Cable ◽  
Discharge Activity

Development of Damped AC Voltage Generator for the Partial Discharge Detection of Distribution Power Cables

2014 ◽  
Vol 494-495 ◽  
pp. 1428-1431
Author(s):  
Wei Zhang ◽  
Rong Xue ◽  
Zhi Wei Huang ◽  
Chen Xi Huang ◽  
Hong Jie Li ◽  
...  
Keyword(s):  
Partial Discharge ◽  
Test System ◽  
Bipolar Transistors ◽  
Power Cables ◽  
Artificial Defect ◽  
Xlpe Cable ◽  
Air Core ◽  
Voltage Generator ◽  
Semiconductor Switch ◽  
Made In

This paper presents the development of the Damped AC (DAC) voltage generator for the detection of partial discharge (PD) in distribution power cables. High voltage semiconductor switch (HVSS) and air-core inductor are the key units in the DAC test system. Series connection of insulated gate bipolar transistors (IGBTs) was used to achieve the 20kV HVSS. Based on the Neumanns formula, the inductance of the air-core inductor was investigated. Finally, the performance of the developed DAC system was tested on a 8.7/15 kV cross-linked polyethylene (XLPE) cable in the laboratory, where artificial defect of missing stress tube is made in the cable termination.

Strategi Penyelenggaraan Diklat Dan Ujian Sertifikasi Keahlian Pengadaan Barang/ Jasa Pemerintah Di Lingkungan Pemerintah Kabupaten Magelang

2017 ◽  
Vol 24 (1) ◽  
pp. 87-106
Author(s):  
Wiharyanto Wiharyanto
Keyword(s):  
Education And Training ◽  
Test System ◽  
Civil Servants ◽  
Quality Of Education ◽  
Alternative Formulation ◽  
Computer Assisted ◽  
Certification Exams ◽  
The Government ◽  
And Training

The study aims to analyze about the low graduation and certification exam training participants of the procurement of goods / services of the government and its contributing factors, and formulate a strategy of education and training and skills certification exams procurement of goods / services of the government. Collecting data using the method of study documentation, interviews, and questionnaires. Is the official source of information on the structural and functional Regional Employment Board, as well as the participants of the training and skills certification exams procurement of goods / services of the government in Magelang regency government environment. Analysis using 4 quadrant SWOT analysis, to determine the issue or strategic factors in improving the quality of education and training and skills certification exams procurement of government goods / services within the Government of Magelang regency. The results show organizer position is in quadrant I, which is supporting the growth strategy, with 3 alternative formulation strategies that improve the quality of education and training and skills certification exams procurement of government goods / services, and conducts certification examination of the procurement of government goods / services with computer assisted test system (CAT). Based on the research recommendations formulated advice to the organizing committee, namely: of prospective participants of the training and skills certification exams procurement of goods / services the government should consider the motivation of civil servants, is examinees who have attended training in the same period of the year, the need for simulation procurement of goods / services significantly, an additional allocation of training time, giving sanction to civil servants who have not passed the exam, the provision of adequate classroom space with the number of participants of each class are proportional, as well as explore the evaluation of education and training and skills certification exams procurement of goods / services for Government of participants.

Principles for construction of bioluminescent enzyme biotests for analysis of complex media

2019 ◽  
Vol 485 (2) ◽  
pp. 229-233
Author(s):  
V. P. Kalyabina ◽  
E. N. Esimbekova ◽  
I. G. Torgashina ◽  
K. V. Kopylova ◽  
V. A. Kratasyuk
Keyword(s):  
Fruits And Vegetables ◽  
Rapid Assessment ◽  
Test System ◽  
Maximum Sensitivity ◽  
Toxic Chemicals ◽  
Complex Media ◽  
Luminescent Bacterium ◽  
Chemical Safety ◽  
Minimal Impact

We formulated the principles of designing bioluminescent enzyme tests for assessing the quality of complex media which consist in providing the maximum sensitivity to potentially toxic chemicals at a minimal impact of uncontaminated complex media. The developed principles served as a basis for designing a new bioluminescent method for an integrated rapid assessment of chemical safety of fruits and vegetables which is based on using the luminescent bacterium enzymes (NAD(P)H:FMN oxidoreductase and luciferase) as a test system.

Ageing Assessment of XLPE Cable Insulation by Residual Antioxidant Content

2020 ◽  
Vol 27 (6) ◽  
pp. 1795-1802
Author(s):  
Yuanyuan Zhang ◽  
Shengtao Li ◽  
Jian Gao ◽  
Shihang Wang ◽  
Kangning Wu ◽  
...  
Keyword(s):  
Cable Insulation ◽  
Xlpe Cable ◽  
Antioxidant Content
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