Mr. Weihua Zhou Profile

Weihua Zhou

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Proceedings Article | 8 December 2020 Paper

Typical case analysis of distribution cable fire fault

D. Wan, W. H. Zhou, F. Qi, H. Y. Zhou, M. Zhao, X. J. Duan, S. M. Peng, Y. Q. Huang

Proceedings Volume 11606, 116060Q (2020) https://doi.org/10.1117/12.2586787

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Power cable undertakes the important task of power transmission. In recent years, the use of power cables is increasing, and its safe and reliable operation is very important to ensure the stable operation of distribution system. However, the cable is deeply buried in the ground, so it is difficult to find the problem in time and reliably in ordinary daily inspection. In recent years, the number of cable faults has increased greatly, and the fire failure caused by the explosion of cable intermediate joint accounts for more than 80%. Taking a typical large-scale fire accident of distribution cable as an example, this paper deeply analyzes the prominent problems existing in the installation process of cables and accessories, line protection configuration, operation and maintenance of cable operation environment. The case has high learning value and significant guiding significance. It basically covers the prominent problems in technology, process and management of current distribution cable. Through in-depth analysis of the case, targeted and reliable solutions are proposed, which can effectively improve the operation level of distribution network.

Proceedings Article | 8 December 2020 Paper

Typical case analysis of overload damage fault in distribution station area

D. Wan, W. H. Zhou, F. Qi, H. Y. Zhou, M. Zhao, Y. Y. Wang, Y. Chen, X. J. Duan

Proceedings Volume 11606, 116060R (2020) https://doi.org/10.1117/12.2586796

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The distribution station area is composed of distribution transformer, low-voltage comprehensive distribution box, lowvoltage line, drop out fuse and other medium voltage protection equipment. It undertakes the important tasks of voltage transformation and power distribution in the distribution system, and its safe and reliable operation is very important to ensure the stable operation of the distribution system. With the continuous increase of load capacity, the operation environment of distribution station area is deteriorating day by day. The fire and damage accidents occur frequently in the distribution area, which seriously affect the safe and reliable operation of distribution network and have a very bad social impact. This paper takes a typical high and low voltage equipment comprehensive damage fault in the distribution station area as an example, analyzes the prominent problems existing in the low and medium voltage protection configuration, low voltage equipment installation technology, daily operation and maintenance management, etc. The case has high learning value and significant guiding significance. It basically covers the outstanding problems in technology, technology and management of the current distribution area. Through in-depth analysis of the case, targeted and reliable solutions are proposed, which can effectively improve the operation level of distribution network.

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