摘要
500 kV同塔四回送电线路可充分节约、合理利用线路走廊。给出了500 kV同塔四回送电线路、500 kV/220 kV混压同塔四回送电线路附近电场强度的计算方法,与传统500 kV单回、双回线路进行比较,得出现行规程下导线最佳相序布置形式及最小对地距离。分析了回路之间的相角差对电场分布的影响,并分析了某一回路因检修(或故障)退出运行时对电场分布的影响。
The overhead transmission line with four circuits on one tower can full save and make reasonable use of the limited routeway resourse. This article presents calculation methods of electric field intensity near the line with four circuits on one tower of 500 kV and 500 kV/220 kV mixed voltage and compares the result that of the traditional 500 kV single circuit and double circuits on one tower,and tries to find out the best lay form of wires between phases and the least distance to the ground,and analyzes the influence of the phase angle of voltage between wires, and also analyzes the influence when one circuit quits for examine and repair or the malfunction.
出处
《江苏电机工程》
2004年第1期11-16,共6页
Jiangsu Electrical Engineering
