DocumentCode :
1049054
Title :
Feasibility study of upgrading primary feeders from radial and open-loop to normally closed-loop arrangement
Author :
Chen, Tsai-Hsiang ; Huang, Wei-Tzer ; Gu, Jyh-Cherng ; Pu, Guan-Chih ; Hsu, Yen-Feng ; Guo, Tzong-Yih
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Volume :
19
Issue :
3
fYear :
2004
Firstpage :
1308
Lastpage :
1316
Abstract :
The feasibility study of upgrading primary feeders from radial and open loop to a normally closed-loop arrangement have been explored in this paper. First, three possible feeder arrangements for forming a normally closed loop are discussed, and then the factors that may predominantly affect the system-type upgrading are discussed theoretically. Next, four existing distribution feeders with original radial arrangements, fed by three power transformers that are located at two different distribution substations of Taiwan Power Company (Taipower) are employed as sample systems. To form three types of closed-loop arrangement, all of the four radial feeders were tied together at their ends, two feeders at a time. The power flows, voltage profiles and short-circuit capacities of the feeders under both the tie breaker normally open and closed cases have been evaluated, and the impacts of the upgrading of system type on the distribution system and customers assessed. Finally, the required supporting measures for these kinds of upgrading have been listed, and the most suitable and feasible arrangement was recommended to Taipower.
Keywords :
distribution networks; power transformers; substations; closed loop; distribution substation; feeder arrangements; open loop; power flow; power transformers; primary feeders; radial arrangements; voltage profiles; Circuit breakers; Circuit faults; Cities and towns; Electricity supply industry; Frequency; Machinery production industries; Power supplies; Power transformers; Statistical distributions; Substations; Distribution system; normally closed loop; open loop; primary feeder; radial;
fLanguage :
English
Journal_Title :
Power Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8950
Type :
jour
DOI :
10.1109/TPWRS.2004.831263
Filename :
1318665
Link To Document :
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