监视器的保护功能不受线路或负载的电流大小，冲击电流、不平衡电流和负载性质的影响。
The protection functions of relay don't be affected by current intensity of circuit or load, impulse current, imbalance current and load characteristic.
因此必须利用导线换位，并且采用适当的相序排列方式以及换位方向来减小线路的不平衡度。
Therefore, to minimize line imbalance, conductor transposition, as well as proper phase sequence and transposition orientation have to be used.
在此基础上分析线路塔型、导线参数、相序排列等因素对不平衡电流的影响。
On this basis, the influences to unbalance current of line tower type, wire parameters and phase sequence arrange are analyzed.
不平衡度是衡量输电线路性能优劣的一个重要指标。
The unbalanced degree is one of the most important indexes to evaluate the performance of the transmission lines.
为降低长输电线路的电流不平衡度，需要进行导线换位。
Conductor transposition is necessary to reduce unbalanced current in long transmission lines.
文章针对特高压输电线路的特点，对直线杆塔纵向不平衡张力合理取值进行了探讨。
Pointing to the characters of the EHV transmission lines the paper discusses about rational values of the longitudinal unbalanced tensions for the suspension towers and poles.
市电频率Hum，主要原因包括灯丝线路走线导致的不平衡；供给灯丝的电源变压器（缺陷）导致电源杂波耦合进入信号通道，等等。
Line frequency hum, primarily induced by imbalance in the filament circuit wiring, the transformer used to power the filament, coupling into the signal leads, etc.
最后以EMTDC仿真为手段对深圳电网典型线路的不平衡电流进行再现，并根据前文的研究结论提出相应的解决方法并仿真验证。
Finally, the unbalanced current in Shenzhen power grid is reproduced by simulation with EMTDC. Based on conclusions of earlier studies, a solution is proposed and it is proved by simulation.
所以线路换位的目的是要使每相导线感应阻抗和每相的电容相等，以减少三相线路参数的不平衡。
It analyzed the unbalance of both single-circuit line and double-circuit lines in same tower, made a summary of their transposition methods.
所以线路换位的目的是要使每相导线感应阻抗和每相的电容相等，以减少三相线路参数的不平衡。
It analyzed the unbalance of both single-circuit line and double-circuit lines in same tower, made a summary of their transposition methods.
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