Study on electric arc's on-line detection and warning system for low voltage distribution box

2010 ◽  
Author(s):  
Dong Aihua ◽  
Yu Qiongfang ◽  
Lv Hui ◽  
Yu Qiongfang ◽  
Zheng Dezhong
Keyword(s):  
Low Voltage ◽  
Warning System ◽  
Line Detection ◽  
Voltage Distribution ◽  
On Line

Study on Electricity-Theft Criterion Based on the Unchanged Line Resistance of the Distribution Network

2012 ◽  
Vol 614-615 ◽  
pp. 1385-1389
Author(s):  
Jia Yang ◽  
Hai Bao ◽  
Ling Wang
Keyword(s):  
Low Voltage ◽  
Operation Mode ◽  
Distribution Network ◽  
Reference Value ◽  
Voltage Distribution ◽  
Actual Measurement ◽  
Electricity Theft ◽  
Simulink Simulation ◽  
On Line ◽  
Line Resistance

The power, voltage and current will change along with the change of grid’s operation mode; however, the line resistance is unchanged. This paper analyzed the limitation and inadaptability of the existed methods used for anti-electricity-theft. And most of the criterions are based on the variable electrical quantities. In order to establish a criterion that can find out the position of electricity-theft accurately, it chose line resistance as a reference value, and calculated the equivalent resistances of each node and branch combining with the actual measurement system. To verify the validity of this criterion, a medium and low voltage distribution network was structured in the Matlab/Simulink simulation platform. The results, which are basically consistent with the actual situations, show that the criterion based on line resistance can well investigate electricity-theft, and also verify that the introduction of this method will bring great benefits to engineering applications.

New Detection Method for an Insulation Level Monitoring Device Used in Low-Voltage Distribution Lines

2016 ◽  
Vol 136 (11) ◽  
pp. 878-883 ◽  
Author(s):  
Kazunori Nishimura ◽  
Yusaku Marui ◽  
Satonori Nishimura ◽  
Wataru Sunayama
Keyword(s):  
Detection Method ◽  
Low Voltage ◽  
Monitoring Device ◽  
Voltage Distribution ◽  
Distribution Lines ◽  
Level Monitoring

Development and Evaluation of a Fast Voltage Calculation Method for Low-Voltage Distribution System

2013 ◽  
Vol 133 (4) ◽  
pp. 343-349
Author(s):  
Shunsuke Kawano ◽  
Yasuhiro Hayashi ◽  
Nobuhiko Itaya ◽  
Tomihiro Takano ◽  
Tetsufumi Ono
Keyword(s):  
Calculation Method ◽  
Distribution System ◽  
Low Voltage ◽  
Voltage Distribution
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