Fitting Formula of Sheath Currents and Arrangement Optimization of Cables

被引：1
|
作者：
Wang, Yong-zhi [1 ]
Cao, Wei [1 ]
Liang, Hai-sheng [2 ]
Li, Fan [2 ]
机构：
[1] Shanghai Univ Elect Power, Shanghai 200090, Peoples R China
[2] State Grid Shanghai Elect Power Econ Inst Technol, Shanghai 2000002, Peoples R China
来源：
PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON ELECTRICAL ENGINEERING AND AUTOMATIC CONTROL | 2016年 / 367卷
关键词：
High-voltage cable; Sheath currents; Empirical formula; Arrangement;
D O I：
10.1007/978-3-662-48768-6_47
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
There will be circulating currents in metal sheaths of cross bonding cables when length or arrangements of three segments are different. The phasor sums of sheath-induced voltages in sheath cross bonding cables are first analyzed. Then, the circulating currents are calculated by EMTP with varied lengths of three segments to get the sample data, which are in turn used to fit out the empirical formula for evaluating sheath circulating currents. Finally, the principle of mixed arrangements is proposed to reduce sheath circulating currents in sheath cross bonding cables when the lengths of cable segments are not equal.
引用
收藏
页码：411 / 420
页数：10
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