介绍了超高压输电线路多回路耐张塔用预制式铝管跳线装置的研究、试制、试验及应用。
This paper introduced the research, trial production, testing and application of jumper device of prefabricating aluminum pipe for multi-circuit strain tower in EHV transmission line.
输电线路的零序参数尤其是多回互感线路的零序参数是电力系统继电保护整定计算需要的重要参数，所以其准确测量具有重要意义。
The zero-sequence parameter of transmission lines especially of transmission lines with mutual inductances is of great important in the relay protection setting calculation of power system.
由于回路之间互感作用的存在，给多回路输电线路参数的测量带来了很大的困难。
And it gives a huge challenge for the parameters measurement due to the mutual inductance effects between different lines.
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