Search Results - "2018 Condition Monitoring and Diagnosis (CMD)"

Development of UHF Sensors for Partial Discharge Detection in Power Transformer by Chai, Hua, Phung, B. T., Zhang, Daming

“…Partial discharge (PD) is a symptom of insulation defect or degradation in high-voltage power equipment. To detect the occurrence of PDs inside oil-filled…”
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Pattern Recognition of Partial Discharge Image Based on One-dimensional Convolutional Neural Network by Wan, Xiaoqi, Song, Hui, Luo, Lingen, Li, Zhe, Sheng, Gehao, Jiang, Xiuchen

“…Big data platforms and centers are ubiquitous today where a large amount of unstructured data on site such as images is accumulated. For structured data,…”
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Partial Discharge Pattern Recognition with Data Augmentation based on Generative Adversarial Networks by Wang, Xuhong, Huang, Hongyi, Hu, Yue, Yang, Yupu

“…Pattern recognition of partial discharge (PD) has various beneficial applications in academia and industry. However, it is hard and expensive to obtain…”
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Fault Identification Based on PD Ultrasonic Signal Using RNN, DNN and CNN by Zhang, Qinqin, Lin, Jun, Song, Hui, Sheng, Gehao

“…Traditional fault identification algorithms have low recognition accuracy in practical engineering applications. In this paper, new fault identification…”
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Detection of Single Line-to-Ground Fault Using Convolutional Neural Network and Task Decomposition Framework in Distribution Systems by Du, Ying, Shao, Qingzhu, Liu, Yadong, Sheng, Gehao, Jiang, Xiuehen

“…Fault feature extraction is critical for fault line detection, but difficult to be effective and robust. Unbalanced characteristics of the fault signal sample…”
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A feasibility study on bushing tap UHF sensing method for partial discharge in transformer by Wang, Hongmei, Cheng, Jiangrong, Ding, Dengwei, Liu, Weidong, He, Liang

“…the paper proposes a new detection method for partial discharge in transformer. Different from conventional UHF method, which mainly detects electromagnetic…”
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Condition Monitoring and Diagnosis of Outer Raceway Bearing Fault using Support Vector Machine by Gunasekaran, Santhosh, Pandarakone, Shrinathan Esakimuthu, Asano, Keisuke, Mizuno, Yukio, Nakamura, Hisahide

“…Fault detection at initial stage and follow-up the monitoring progress are mandatory to avoid the damage of induction motors. If fault not detected at initial…”
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State of the Art in GIS PD Diagnostics by Behrmann, Glenn, Koltunowicz, Wojciech, Schichler, Uwe

“…This paper presents the state of the art in GIS PD diagnostics. The guidelines for a risk assessment procedure on defects in GIS based on PD measurements are…”
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Simulation Study and Detection Position Analysis on Position of Partial Discharge Detection in XLPE Cable Cross-bonding System by Zhang, Yue, Chen, Xiaoxin, Qian, Yong, Li, Zhe, Sheng, Gehao, Jiang, Xiuchen

“…In the long-distance XLPE power cable partial discharge detection, due to the existence of cable jacket cross-interconnect structure, the defect phase of the…”
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Effect of Thermal Aging on the mechanical Characteristic of Insulating Paper Impregnated with Different Insulating Oils by Sari, Ira Mardya, Suwarno, Kinkeldey, Tobias, Werle, Peter

“…Transformers are critical components of the power grid. The energy transfer is highly dependent on the performance of the transformer. As the transformer…”
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Fault Diagnosis of OLTC Based on Time-Frequency Image Analysis of Vibration Signal by Liu, Zhiyuan, Xia, Xinqian, Ji, Shengchang, Shi, Yuhang, Zhang, Fan, Fu, Yu, Jiang, Zhitong

“…On-Ioad tap changer (OLTC), as a frequently operated part of transformer, is affected by both transient mechanical stress and electric stress, bringing high…”
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EMD- WVD Method Based High- Frequency Current Analysis of Low Voltage Arc by LIU, Jiangting, ZHOU, Kaifeng, HU, Yue

“…Experiment shows that high-frequency pulse current exists when arc fault occurs, which is one of signal characteristics that can be used for arc fault…”
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State Prediction of Power Transformer Based on Grey-Lagrange Method with Weighted Coefficient of Variation by Wang, Yiming, Zhang, Peng, Qi, Bo, Li, Chengrong, Su, Haohui, Wang, Qi

“…Transformer is the key equipment of the power system. The reliability of power system is reduced by transformer faults. The device, which monitors and predicts…”
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Feasibility of Optical Fibre Sensors for Moisture Diagnosis in Transformer Insulation by H. Ansari, M. A., Martin, D.

“…Wet insulation is a serious concern when using a transformer, as it severely reduces the overloading capability and remaining useful life. Given that the water…”
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A Statistical Approach for Effectively Analyzing the Grain Size Distribution Along the Thickness Direction in Commercial ZnO-Based Varistor Ceramics by Zhang, Lei, Yu, Chuan, Zhang, Le, Liu, Wenfeng, Wu, Kangning, Li, Shengtao, Li, Jianying

“…Grain size and its spatial distribution are the crucial issues in the study of advanced materials with a grain-grain boundary structure. It not only implies…”
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Space Charge Measurement System Based on Laser PWP Method for the Full-size Long HVDC Cable by Cao, Zhiyu, Zhang, Yewen, Guo, Cong, Zheng, Feihu, An, Zhenlian, Hole, Stephane, Yu, Enke, Zheng, Xinlong, Zhu, Zhien, Yang, Liming

“…Because of the limitation of technical level and experimental conditions, the space charge distributions in the full-size HVDC cables has never been obtained…”
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Influence of Partial Discharge on Dissipation Factor Measurement at Very Low Frequency by Morsalin, S., Phung, B.T., Danikas, M. G.

“…For diagnostic assessment of electrical insulation in high voltage power equipment, partial discharge (PD) and tanδ (DDF) measurements are the most popular…”
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An effective principal component regression method for transformer life management based on indirect parameters by Li, Shiiun, Yang, Liuqing, Yan, Wei, Cui, Huize, Ge, Zhao, Li, Shengtao

“…Transformer life management has gained remarkable recognition due to its crucial role for safe operation of the power grid. Since transformer life is dominated…”
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Effects of Revulcanization on XLPE Crystalline Morphology and AC Breakdown Performance by Zhao, Wei, Zhong, Lisheng, Yang, Xiaoyu, Li, Yinge, Gao, Jinghui

“…The extruded insulation submarine cable of large length employs a number of factory joints for connection in sea-crossing transmission projects. The…”
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Interface Charge Behaviors between XLPE and EPDM with Different Conductivity by Li, Dong, Zhu, Zhien, Yang, Liming, Zeng, Hao, Gao, Kai, Xu, Lixin

“…The space charges accumulation between HVDC cable and accessory insulation will accelerate degradation and breakdown of the cable system, endanger the safety…”
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