Because there is no need for acquiring the zero-sequence component, this principle can eliminate the effect of zero-sequence mutual inductance between coupling lines.

由于该方法中没有用到线路两真个零序分量，消除掉耦合线路之间零序互感对测距的影响。

A double lines distance relay based on the zero sequence components is presented.

提出了适用于平行双回线路的零序距离继电器新判据.

The zero sequence directional relay is an important relay component for transmission line.

零序功率方向继电器是线路保护中的一个重要元件.

It mainly focuses on analysis and determining method of zero sequence power direction relay.

重点介绍零序功率方向继电器的分析及判定方法.

Zero sequence directional power protection is widely used in neutral directly grounded system.

中广泛采用着零序功率方向保护。

Low and even forward (backward) and zero sequence impedance improves the quality of power supply.

电缆具有较低且均匀的正（逆）序和零序工作阻抗，有利于改善供电品质。

Protection devices is equipped with zero-sequence differential protection for the auto-transformer .

而保护装置针对自耦变压器，还配置了零序差动保护。

The advantages of zero sequence differential protection are expounded, and it is worth to promote its application.

文中简述了零序差动保护的优点，要求推广应用。

The aim of this article is to offer you a kind of analysis, judgement zero sequence directional power relay wiring correctness of the basic principle and method.

本文的主要目的是向大家提供一种分析、判断零序功率方向继电器接线正确与否的基本原理与方法。

The results of experiment and simulation indicate that harmonics, negative and zero sequence current in three phase and four wire system could be compensated by two types of main power circuits.

本文介绍了在实现三相四线制有源电力滤波器时所采用的两种不同的主电路结构及其控制方法。