中压电网中，单相接地故障电流的危害性受到了人们的普遍关注。
The harm of single-phase grounding fault current in the medium-voltage power network has been gotten the universal solicitude of people.
为减少产生谐振，降低内过电压，中性点接地电阻器在中压电网的应用越来越多。
For decrease of harmonics and switching overvoltages the application of neutral grounding resistors is spreed.
阐述了中压电网中性点接地方式的近况，国家有关标准的变化，企业应从中吸取有益的东西。
The recent developments of neutral point ground modes of medium-voltage power network and variety of national related standards are presented.
文章重点提出在城市中压电网中推广环网供电方式是一种较为合理的具有一定优势的供电方式。
This text mainly points out that the extension of the ring power-supply network in the urban medium-voltage power supply is a comparatively reasonable way of power supply with certain advantages.
本文针对中压电网中经常发生的单相接地故障，介绍了基于暂态能量判据对故障支路的选线方法。
Focusing on single phase earth faults which frequently happen in medium voltage networks, this paper presents a faulty feeder selection system based on the transient energy criteria.
中压电网不断扩大的同时，系统的单相接地电流也快速增加，发生故障时送电线路和变电站事故较多。
With expanding constantly on MV network, the current of the one-phase grounding increases constantly too, when one-phase grounding fault happens, there are more accidents in the lines and substations.
EDF通过总结和研究中压电网30多年的运行经验，决定将中性点低阻抗接地方式，全部改为谐振接地方式。
Summarizing the operating experience over 30 years, EDF determines to change low resistance grounding into resonance grounding in MV network.
在中低压电网中，PT断线、单相接地及由PT饱和引起的铁磁谐振均是多发性的故障，这些故障都能使电压异常。
PT breaking and ferro-resonance caused by single-phase grounding and PT saturation are common faults in medium-low voltage power networks, which make voltage abnormal.
电容式电压互感器是广泛应用在国内外高压电网中的一种用以进行电能计量、电压丈量和继电保护的信号取样装置。
CVT is a signal sampling device which is widely used to carry out an energy metering, measuring voltage and relay protection in high-voltage power network at home and abroad.
应用该测量系统测试高压电网中的谐波，可以避免因高压电网中取自电容式电压互感器（CVT）的谐波测量信号失真的问题。
The system can measure the harmonic in HV power network, and avoid the problem of harmonic measure signal distortion caused by capacity type voltage transformer (CVT).
智能断路器作为智能电网中的基础部件，一直是近几年来低压电器领域的热门研究课题。
As the basis of smart grid components, intelligent circuit breaker became a hot research topic in the field of low voltage electrical recent years.
在基于零序电流方向原理的矿井低压电网选择性漏电保护中，比相误差是导致保护误动的主要因素。
The phase comparison error is the primary factor leading to mistaken action in the selective leakage protective system of underground LV networks based on zero sequence current direction.
高压电力电缆是输配电网络中的基础设备之一。
The high voltage power cable is a basic equipment in the electricity transmitting.
应用：适用于输变电网中各类以SF 6气体为绝缘介质的高压、中压电器设备中气体压力的监测。
Application: monitoring the gas pressure of all kinds of high voltage and medium voltage electrical equipment which use SF6 gas as insulation in transmission network.
本论文研究的电气主接线综合评价系统，主要针对高压配电网中110KV变电站高压电气主接线的设计。
This paper presents a synthetic assessment system for main electric connection, especially for high-voltage main electric connection of 110KV substation.
GIS内的特快速暂态过电压（VFTO）巳在超高压电网中造成了一些事故。
Several failures and problems have beencaused by Very Fast Transient Overvoltage(VFTO) in GIS.
GIS内的特快速暂态过电压（VFTO）巳在超高压电网中造成了一些事故。
Several failures and problems have beencaused by Very Fast Transient Overvoltage(VFTO) in GIS.
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