Article
Polymer Science
Hongjian Liu, Shihang Wang, Shengtao Li, Yifan Wu, Liuhao Jiang, Jianyu Lang, Jialiang Yuan, Jiajun Liu
Summary: The thermal elongation of cross-linked polyethylene (XLPE) insulation for high-voltage cables is influenced by both the cross-linking degree and thermo-oxidative aging during testing. Antioxidants can inhibit the aging effect and improve the thermal elongation properties. The evaluation of XLPE insulation performance should consider the synergistic effect of network structure and antioxidation performance.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Materials Science, Multidisciplinary
Yiwen Shi, Xiangrong Chen, Fan-Bo Meng, Zelin Hong, Muhammad Awais, Ashish Paramane
Summary: This study investigates the influence of three different voltage stabilizers on the insulation properties of cross-linked polyethylene (XLPE). The results show that the addition of the voltage stabilizers enhances the DC resistivity and DC breakdown strength of the XLPE, which also inhibits the accumulation of space charges in the XLPE.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Energy & Fuels
Zhenpeng Zhang, You Wu, Chao Fu, Shaoxin Meng, Chao Peng, Zhonglei Li, Boxue Du
Summary: This study focused on the effect of pre-crosslinking on the electrical properties of XLPE insulation for HVDC cables. The results show that pre-crosslinking leads to increased electric field distortion, space charge accumulation, and decreased DC breakdown strength in XLPE samples.
Article
Engineering, Electrical & Electronic
Shafira Zahra, Shosuke Morita, Masaki Utagawa, Tomohiro Kawashima, Yoshinobu Murakami, Naohiro Hozumi, Peter Morshuis, Young- Cho, Yoon-Hyoung Kim
Summary: A new device for measuring space charge on full-size cables using the pulsed electro-acoustic method is proposed. The device has a four times higher sensitivity than conventional devices and uses a polymeric material as an acoustic coupler. This new device allows for easy connection and measurement accuracy at low voltage.
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
(2022)
Article
Polymer Science
Yiwen Shi, Xiangrong Chen, Fan-Bo Meng, Muhammad Awais, Zelin Hong, Ashish Paramane, Hao Li
Summary: This paper investigated the influence of three aromatic voltage stabilizers on the insulating properties of cross-linked polyethylene at high temperatures and found that the addition of voltage stabilizers can suppress space charge and improve the DC breakdown strength of XLPE.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Fan Yang, Kai Zhou, Shakeel Akram, Muhammad Tariq Nazir
Summary: This paper introduces a new method for testing PDC in high-voltage wire, which can efficiently eliminate interference and accurately measure PDC in an industrial environment. The method uses an equipotential picoammeter connected in series with the high-voltage wire, and a device with automatic switching function.
Article
Energy & Fuels
Hanen Yahyaoui, Jerome Castellon, Serge Agnel, Aurelien Hascoat, Wilfried Frelin, Christophe Moreau, Pierre Hondaa, Dominique le Roux, Virginie Eriksson, Carl Johan Andersson
Summary: This study focuses on the electrical behavior of cross-linked polyethylene (XLPE) used in HVDC cable insulation, aiming to understand the influences of electrical and thermal stresses for designing HVDC cables. The research analyzes dielectric loss factor, volume resistivity, and space charge accumulation in XLPE insulation samples aged for over 3 years at different temperatures under varying DC electric fields.
Article
Engineering, Electrical & Electronic
Sarath Kumara, Yuriy Serdyuk, Marc Jeroense
Summary: This paper compares different models used for calculating electric field distributions in HVDC cable insulation and finds that models based on a microscopic approach are better at predicting the accumulation of homo- and hetero-charge in the insulation.
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
(2021)
Article
Polymer Science
Zelin Hong, Xiangrong Chen, Hanshan Zhu, Tianyin Zhang, Hao Li, Muhammad Awais, Ashish Paramane
Summary: By grafting a voltage stabilizer onto the molecular chains of cross-linked polyethylene (XLPE), the insulation properties of the material can be effectively improved. Physicochemical and dielectric tests were conducted on four different samples, and the results showed successful grafting of m-aminobenzoic acid onto the XLPE molecular chain. The grafted voltage stabilizer had minimal impact on the gel content and thermal properties of XLPE, but increased crystallinity while decreasing lamella thickness. Moreover, the XLPE grafted with a voltage stabilizer exhibited lower DC electrical conductivity, less aggregation of space charge, and higher DC breakdown strength, leading to enhanced material properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Zelin Hong, Xiangrong Chen, Hanshan Zhu, Tianyin Zhang, Hao Li, Muhammad Awais, Ashish Paramane
Summary: By grafting a voltage stabilizer onto molecular chains of cross-linked polyethylene (XLPE), the insulation properties of the material can be effectively improved. This study prepares four different samples and conducts various tests to investigate the properties of the samples. The results show that grafting the voltage stabilizer onto XLPE enhances its performance, reducing direct current electrical conductivity and increasing breakdown strength.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Yi Zhang, Zaijun Wu, Jiahong He, Dongdong Zhang, Minqiang Hu
Summary: The study aims to investigate the effects of thermal ageing on electrical treeing initiation and growth behaviors in XLPE cables. Accelerated thermal samples were used for the treeing tests, and analysis techniques including DSC and FTIR were applied to study the changes in microstructures. The results show that the thermal ageing process can be divided into three phases, with re-crystallization being the main factor for the increase in average electrical tree initiation voltage (AETIV).
Article
Engineering, Electrical & Electronic
Xize Dai, Jian Hao, Gian Carlo Montanari, Zheng Jian, Ruijin Liao, Xinlong Zheng
Summary: This study proposes a novel diagnostic method for ageing submarine cable based on high-voltage frequency domain spectroscopy. The method can analyze the characteristics of insulation and quantify its ageing state.
Article
Engineering, Multidisciplinary
Giuseppe Rizzo, Fabio Viola, Guido Ala, Pietro Romano, Giuseppe Schettino, Antonino Imburgia, Graziella Giglia
Summary: This article focuses on the investigation of the effects of axial heat transmission on space charge and electric field distributions in HVdc cables. A case study involving a cable partially immersed in water and part in air was simulated using a 2-D thermal and electrical model in time domain. The results show the establishment of an electric field peak near the water-air interface due to increased temperature drop over the insulation in this area. The study attempts to improve understanding of the relationship between thermal and electrical phenomena in HVdc cables, emphasizing the importance of considering the impact of axial heat transfer in thermal rating standards for HVdc cables.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2021)
Review
Engineering, Electrical & Electronic
Giovanni Mazzanti
Summary: This paper discusses the contribution of HVDC cables to decarbonisation, with particular reference to the situation in Europe. It provides a general understanding of the quantitative contribution made by HVDC cable systems through simple calculations. Additionally, the major issues towards long-lasting and reliable HVDC cable systems are summarized, focusing on the influence of different technologies, cable laying environment, and duty service. The potential benefits of multiterminal HVDC systems are also mentioned.
Article
Engineering, Chemical
Meng-Hui Wang, Hong-Wei Sian, Shiue-Der Lu
Summary: This study proposes a recognition method based on SDP analysis and CNN for rapid and accurate diagnosis of insulation defect problems. The PD signals resulting from different insulation defects are reflected by comprehensible images using the proposed SDP analysis method. The feature image is trained and identified by CNN to achieve a power cable insulation fault diagnosis system.
Article
Engineering, Electrical & Electronic
Tetsuo Fukuchi, Norikazu Fuse, Maya Mizuno, Kaori Fukunaga
ELECTRONICS AND COMMUNICATIONS IN JAPAN
(2016)
Article
Engineering, Electrical & Electronic
Norikazu Fuse, Tetsuo Fukuchi, Maya Mizuno, Kaoru Fukunaga
ELECTRONICS AND COMMUNICATIONS IN JAPAN
(2016)
Article
Engineering, Electrical & Electronic
N. Fuse, H. Misaka, H. Homma, T. Okamoto
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
(2016)
Article
Materials Science, Multidisciplinary
Norikazu Fuse, Atsushi Naganuma, Tetsuo Fukuchi, Jun-ichi Tani, Yasuhiko Hori
Article
Materials Science, Multidisciplinary
Norikazu Fuse, Yoshiharu Shumuta, Atsushi Naganuma, Jun-ichi Tani, Yasuhiko Hori
Review
Chemistry, Applied
Norikazu Fuse, Kiyonobu Sugae
PROGRESS IN ORGANIC COATINGS
(2019)
Article
Materials Science, Characterization & Testing
Norikazu Fuse, Maya Mizuno
Summary: The monopole antenna with a semi-spherical silicon lens effectively suppressed the diffusion of millimeter waves and was used for underfilm corrosion imaging. Reflection properties of gamma-FeOOH tablets were investigated at 33.1 GHz, showing precise delays in the presence of the tablet. Clear delays were measured for an accelerated aging sample, successfully realizing a corrosion map under the coatings.
NDT & E INTERNATIONAL
(2021)
Article
Energy & Fuels
Norikazu Fuse, Shosuke Morita, Satoru Miyazaki, Toshihiro Takahashi, Naohiro Hozumi
Summary: Accurate measurement of space charge is crucial in evaluating cables for high-voltage DC systems. This study utilized advanced analysis technologies, including time-domain deconvolution, to accurately estimate electric fields. Through the application of pulse electroacoustic method on a 66 kV-class cable, waveform analysis was conducted to reproduce the electric field distribution. The statistical analysis showed that, even with optimized deconvolution parameters, the estimation accuracy was -0.3% +/- 19.9% with a 95.4% confidence interval under a DC voltage of 30 kV.
Article
Engineering, Electrical & Electronic
N. Fuse, Y. Hori, T. Takahashi, M. Mizuno
Summary: Corrosion hidden under opaque anticorrosion coatings is a dangerous issue for outdoor installation. Electrical engineers with field case experience can visualize this type of corrosion using radio waves.
IEEE ELECTRICAL INSULATION MAGAZINE
(2023)
Proceedings Paper
Energy & Fuels
Shosuke Morita, Norikazu Fuse, Toshihiro Takahashi, Takayuki Matsubara, Yoshinao Murata, Naohiro Hozumi
Summary: This paper examines the space charge measurement of cables under steady-state and load cycle temperature conditions. The findings reveal that the space charge and electric field distributions undergo complex changes after heating under load cycle conditions.
2022 9TH INTERNATIONAL CONFERENCE ON CONDITION MONITORING AND DIAGNOSIS (CMD)
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
N. Fuse, S. Morita, S. Miyazaki, T. Takahashi, N. Hozumi
Summary: This work proposes a method to evaluate the accuracy of space-charge measurements by estimating the electric field distribution in the insulating walls of cables. Time-domain deconvolution is used to process the large data required for statistical analysis. The proposed method optimizes deconvolution parameters and analyzes the space charge waveform, providing accurate estimation for waveforms observed at high voltages.
2022 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (IEEE CEIDP 2022)
(2022)
Article
Computer Science, Information Systems
Norikazu Fuse, Mao Takeyama, Masahito Miyoshi, Naoto Kihara, Yoshiharu Shumuta, Yasuhiko Hori, Jun-Ichi Tani
Summary: This report provides a conversion methodology to monitor real-time airborne salinity, which was validated by observations in Japanese coastal areas. The study found variations in salt deposition according to distance from the shore, and identified solar radiation and surface humidity as factors affecting sensor output and estimated deposition.
Proceedings Paper
Engineering, Electrical & Electronic
Shosuke Morita, Norikazu Fuse, Toshihiro Takahashi, Naohiro Hozumi
2020 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (2020 IEEE CEIDP)
(2020)
Article
Engineering, Electrical & Electronic
Tetsuo Fukuchi, Norikazu Fuse, Maya Mizuno, Kaori Fukunaga
ELECTRONICS AND COMMUNICATIONS IN JAPAN
(2016)
