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Lu Sun, Shuguo Gao, Tianran Li, Jiaxin Yao, Ping Wang and Jianhao Zhu
The instability of the winding-cushion structure is one of the primary causes of transformer failures. Insulation cushion compression and offset are the predominant forms leading to structural instability. Therefore, this paper, using the SFSZ7-31500/110...
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Nuttee Thungsuk, Narong Mungkung, Thaweesak Tanaram, Arckarakit Chaithanakulwat, Somchai Arunrungsusmi, Wittawat Poonthong, Apidat Songruk, Khanchai Tunlasakun, Chalathip Chunkul, Tanes Tanitteerapan, Toshifumi Yuji and Hiroyuki Kinoshita
This study used the Area Elimination Method (AEM) of transformer design with transformer characteristic simulation. The multidimensional variable of physical parameters such as magnetic density, current density, voltage and coil turn was performed. This ...
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Yunpeng Liu, Xinye Li, Huan Li, Jiaxue Wang and Xiaozhou Fan
To accurately detect and monitor the internal temperature of an operating power transformer, the distributed optical fiber sensor (DOFS) was creatively applied inside an oil-immersed 35 kV transformer through high integration with the winding wire. On th...
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Bor-Ren Lin and Kun-Yi Chen
A new hybrid inductor-inductor-capacitor (LLC) converter is investigated to have wide voltage input operation capability and zero-voltage turn-on characteristics. The presented circuit topology can be applied for consumer power units without power factor...
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Ilham Mohammed Seydaliyev
Pág. 13 - 18
The existing problems in the field of controlling the insulation thickness of cylindrical frames in the process of automatic winding are shown. Methods of controlling the insulation thickness of steel and plastic frames used in the electrical industry ar...
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Szymon Banaszak, Konstanty M. Gawrylczyk, Katarzyna Trela and Patryk Bohatyrewicz
The results presented in the paper are useful in the interpretation of Frequency Response Analysis measurements.
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This paper solves the problem of reactive power and harmonics compensation in a high-voltage (HV) distribution network supplying nonlinear loads. An inductive filtering (IF) approach where passive filters connect to the filtering winding of a four-windin...
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Lefeng Cheng, Tao Yu, Guoping Wang, Bo Yang and Lv Zhou
This paper develops a novel dynamic correction method for the reliability assessment of large oil-immersed power transformers. First, with the transformer oil-paper insulation system (TOPIS) as the target of evaluation and the winding hot spot temperatur...
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Yanjian Peng, Yong Li, Zhisheng Xu, Ming Wen, Longfu Luo, Yijia Cao and Zbigniew Leonowicz
Unlike the traditional method for power quality improvement and low-voltage ride through (LVRT) capability enhancement of wind farms, this paper proposes a new wind power integrated system by means of an inductive filtering method, especially if it conta...
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Hyewon Lee, Jong-Min Park, Kyeon Hur and Yong Cheol Kang
This paper describes the design, evaluation, and implementation of a compensation scheme for a measurement voltage transformer (VT) using the hysteresis characteristics of the core. The error of a VT is caused by the primary winding voltage and secondary...
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