Type Selection Study of Composite Material for Holding Poles Application in Transmission Line

2013 ◽  
Vol 378 ◽  
pp. 284-288
Author(s):  
Yu Jing Hao ◽  
Miao Qian ◽  
Ni Da
Keyword(s):  
Composite Material ◽  
Transmission Line ◽  
High Voltage ◽  
Power Transmission ◽  
High Strength ◽  
Power Transmission Line ◽  
Light Weight ◽  
Engineering Structure ◽  
Type Selection ◽  
Calculation Analysis

Following construction development of ultra-high voltage power transmission line, requirements on light weight and high strength of the holding pole in construction of the power transmission line is higher and higher. This paper analyzes and compares the current new-brand material which can be applied in the engineering structure, and determines one new-brand material and carries out forcing calculation analysis of the holding pole.

Economic Analysis on Application of Large Section Conductor in Ultra-High Voltage DC Engineering

2013 ◽  
Vol 457-458 ◽  
pp. 1575-1580 ◽  
Author(s):  
Zhen Liu ◽  
Kuan Jun Zhu ◽  
Jian Cheng Wan ◽  
Jun Zhang ◽  
Jia Jun Si ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Transmission Line ◽  
High Voltage ◽  
Power Transmission ◽  
Mechanical Performance ◽  
Power Transmission Line ◽  
Large Section ◽  
Dc Power ◽  
Dc Power Transmission ◽  
Economic Comparison

At present, large section conductors applied in domestic ±800kV ultra-high DC power transmission line consist of 6×720mm2, 6×900mm2 and 6×1000mm2 conductors. This paper analyzes initial engineering investment and mechanical performance of 6×JL1/G2A-720/50, 6×JL1/G3A-900/40, 6×JL1/G3A-1000/45, 6×JL1/G2A-1250/70 and 6×JL1/G2A-1520/125 conductor plans, carry out economic comparison of the whole life period of these 5 conductor plans, demonstrate economic of 6×JL1/G2A-1250/70, and 6×JL1/G2A-1520/125 conductor plans in ±800kV ultra-high DC power transmission line is more advantageous when annual loss hours is too high, and the 6×JL1/G2A-1250/70 plan can save initial investment of engineering compared to the 6×JL1/G2A-1520/125 plan.

Secure Enhanced Update Approach for Embedded Transmission Line Monitoring Terminals

2013 ◽  
Vol 427-429 ◽  
pp. 921-924
Author(s):  
Zhi Peng Shao ◽  
Zao Jian Dai ◽  
Jie Chu
Keyword(s):  
Embedded System ◽  
Transmission Line ◽  
Monitoring System ◽  
Power Transmission ◽  
Authentication Protocol ◽  
Power Transmission Line ◽  
Light Weight ◽  
Embedded Device ◽  
Recovery Mechanism ◽  
Transmission Line Monitoring

Introduce typical embedded device in power transmission line monitoring system and its update requirements. Analyze the drawback of traditional embedded system update mechanism over the air. Propose a security enhanced update approach with light-weight authentication protocol and recovery mechanism.

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