zero-sequence current

A novel principle of negative-sequence current compensation based adaptive zero-sequence over-voltage protection is therefore proposed.

该文提出一种新的基于负序电流补偿的自适应 零序 过电压保护原理.

discussion on configuration and set point calculation of zero-sequence current protection of main transformer

关于主变零序电流保护配置与定值计算问题的探讨

This paper presents a new type of DC conversion topologys-charge transfer zero-current switching DC/ DC converter, discusses its operation principle in detail and derives relevant calculating methods and a typical instance of control.

提出了一种新型直流变换器拓扑&电荷转移式零电流开关CD／DC变换器，对其工作原理作了详细讨论，给出了有关的计算方法和控制实例。

Design of Zero-sequence Current Transformer with High Performance

高性能零序电流互感器的设计

DC Component Time Constant and Zero Offset Phenomena of Breaking Current for 1000 kV Circuit Breaker

1000kV交流断路器开断电流的直流分量时间常数和零偏现象

Zero-sequence Current and New Method of Fault Line Location in Distribution Network

配电线路的零序电流和故障选线新方法

Closed-loop system transfer function of inner current loop has the right half plane zero and close from the imaginary axis, so that the control system Q value is larger and the setting time is longer. It lags the system harmonic compensation time.

系统电流内环闭环传递函数中存在右半平面零点且距虚轴较近，这样造成控制系统Q值较大、调节时间加长、系统谐波补偿滞后。

These reactive devices can't suppress the zero-sequence and negative-sequence current resulted from the unbalanced load.

而且不能补偿不平衡负载导致的 零序 、负序和中线电流.

The output current and voltage zero regulation are achieved through the close cycle control of the unsteady flow of thyristor and the pressure regulating device by means of the thyristor digit trigger composed of monolithic computers processors and by the use of PIB regulating technique.

用单片机组成晶闸管数字触发器，并结合PID调节技术，对晶闸管变流、调压装置进行闭环控制，实现输出电流、电压无差调节。

Key words: low current earth electrical network, transient earth fault, zero-sequence energy, energy variation.

关键词: 小电流接地电网, 间歇性电弧接地故障, 零序能量, 能量变化.

analysis of malfunction of grounding transformer's zero-sequence current protection in 10 kv low resistance grounding system

10kV小电阻接地系统接地变压器零序电流保护误动分析

technical measures of optimizing line zero-sequence current protection setting

优化线路零序电流保护整定计算的技术措施

In a low-resistance grounding system, when the multi-loop line occurs grounding fault inphase, It will cause large changes of the zero-sequence current distribution characteristics, which will cause zero-sequence protection refused to action.

在小电阻接地系统中，当多回线同相发生接地故障时，将引起零序电流的分布特征发生较大变化，从而引起零序保护的拒误动。

zero-sequence current automatic compensation of transformer differential protection based on negative-sequence current

基于负序电流判别的变压器差动保护零序电流自动补偿方法

calculating program for settings of zero-sequence current protection of transmission line

电力系统线路零序电流保护整定计算程序

At ( essentially) the same time, the server executes the setRSSFile() method, and because the difference between the current time and the_LastUpdated time is zero, the transformation takes place.

（本质上）在同一时刻，服务器执行setRSSFile（）方法，因为当前时间和LastUpdated时间的差是0，于是进行转换。

research on faulty line identification in distribution systems based on the frequency-band energy of transient zero-sequence current

基于暂态零序电流频带能量的配电系统接地选线方法研究

In order to greatly enhance the zero-sequence current active component during the single-phase ground fault, the short-time switch and the resistance paralleled with the petersen coil were controlled when there is a permanent single-phase ground fault in the system.

该方法当系统发生永久性单相接地故障时通过控制开关短时投切与消弧线圈并联的电阻，从而大大增强单相接地故障时的零序电流有功分量。

Judging the CT secondary circuit of zero-sequence differential current for autotransformer

自耦变压器零差保护二次接线正确性判断

Study on the Secondary Coil Series-parallel connection of Multi-cables Zero-sequence Current Mutual Inductor

多根电缆零序电流互感器二次线圈串并联的研究

Construction Method of Zero-sequence Current in Distribution Networks with Two Phase' Current Transformers

两相电流互感器配电网零序电流构造方法

a study of adaptive zero-sequence current protection

自适应零序电流保护的研究

Feasibility analysis on zero-sequence current differential principle applied in busbar protection

零序电流差动应用在母线保护的可行性分析

It can also used for zero-sequence current measurement and single phase ground protection.

也可用于电缆线路 零序电流 测量和单相接地保护.