DocumentCode :
1980483
Title :
A novel energy obtaining system for on-line monitoring devices of transmission line
Author :
Xiong, Lan ; Xu, MinJie ; He, YouZhong ; Song, DaoJun ; Zhao, YanLong ; He, Wei
Author_Institution :
State Key Lab. of Transm. Devices & Syst. Safety & New Technol., Chongqing Univ., Chongqing, China
fYear :
2011
fDate :
16-18 Sept. 2011
Firstpage :
4300
Lastpage :
4304
Abstract :
The research of the energy source of online condition monitoring devices for transmission line is a current interest. An energy capture system using both current transformer (CT) and lithium batteries is proposed in this paper. Through this system, the CT with variable turns transmits energy of transmission lines to devices and lithium batteries. The latter works only if line current is inadequate. In addition, the turns radio is 300:1 when line current is under 400A. This ensures that secondary current can still supply energy. On the contrary, for preventing high secondary current, it is adjusted to 450:1. As a result, the output power can be constant 2.5W when line current ranges from 0A to 600A. Combined with the advantages of both CT energy supply and lithium battery energy supply, the system is compact, lightweight and easy to be integrated and expanded.
Keywords :
condition monitoring; current transformers; lithium; power transmission lines; secondary cells; CT energy supply; Li; current 0 A to 600 A; current transformer; energy source; high-voltage transmission lines; lithium battery energy supply; online condition monitoring devices; power 2.5 W; secondary current; Batteries; Coils; Condition monitoring; Current transformers; Lithium; Power supplies; Power transmission lines; CT; energy capture system; lithium battery; online condition monitoring device; transmission line;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
Type :
conf
DOI :
10.1109/ICECENG.2011.6057400
Filename :
6057400
Link To Document :
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