Key Technologies of Gas Active Arc Extinguishing and Lightning Protection for Transmission Lines

2019 ◽  
Vol 08 (01) ◽  
pp. 1-18
Author(s):  
凯华 陈
Keyword(s):  
Transmission Lines ◽  
Lightning Protection ◽  
Key Technologies

scholarly journals Internet of Things in Smart Grid: Architecture, Applications, Services, Key Technologies, and Challenges

Inventions ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 22 ◽  
Author(s):  
Alireza Ghasempour
Keyword(s):  
Internet Of Things ◽  
Web Services ◽  
Smart Grid ◽  
Transmission Lines ◽  
Global Network ◽  
Iot Applications ◽  
Communications Network ◽  
Key Technologies ◽  
Future Work ◽  
Analyze Data

Internet of Things (IoT) is a connection of people and things at any time, in any place, with anyone and anything, using any network and any service. Thus, IoT is a huge dynamic global network infrastructure of Internet-enabled entities with web services. One of the most important applications of IoT is the Smart Grid (SG). SG is a data communications network which is integrated with the power grid to collect and analyze data that are acquired from transmission lines, distribution substations, and consumers. In this paper, we talk about IoT and SG and their relationship. Some IoT architectures in SG, requirements for using IoT in SG, IoT applications and services in SG, and challenges and future work are discussed.

Influence of Overhead Ground Wire Height and Impulse Ground Resistance on Lightning Protection Performance of Distribution Line

2015 ◽  
Vol 1092-1093 ◽  
pp. 281-287
Author(s):  
Yao Zhang Yu ◽  
Jun Kang Ni ◽  
Jun Yu Han ◽  
Bin Ren ◽  
Ao An Li ◽  
...  
Keyword(s):  
Transmission Lines ◽  
Crucial Role ◽  
Power Transmission ◽  
Lightning Protection ◽  
Power Transmission Lines ◽  
Ground Resistance ◽  
Distribution Lines ◽  
Distribution Line ◽  
Lightning Protection Performance

Since distribution lines have relatively weak insulation compared to power transmission lines, it is more liable to lightning damages. This paper reports a study of how overhead ground wire height and impulse ground resistance affect the lightning protection performance. The results obtained in this paper show that high overhead ground wire worsen the lightning protection performance while reducing the impulse ground resistance improves the lightning protection performance. Therefore, it is recommended to set the overhead ground wire lower and take necessary measures to reduce impulse ground resistance. The results obtained also confirm the crucial role of the overhead ground wire as a protection of distribution lines.

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