电压等级

南京电网推广应用20kV电压等级的探索与实践

Research and Practice on the Application of 20 kV Voltage Class in Nanjing Power Network

600MW空冷机组厂用电电压等级选用6kV的讨论

Discussions on the Selection of 6 kV as Service Power Voltage Class of 600 MW Air Cooling Generating Unit

回收装置适用于各种电压等级的SF6电器及GIS组合电器等。

Recycling device is applicable to a variety of voltage levels of SF6 electrical apparatuses and GIS .

2005年度110（66）kV及以上电压等级互感器事故与缺陷统计分析

Statistics and Analyses of Accidents and Defects for 110 ( 66 ) kV and the Above Transformer in 2005

随着我国电力工业的高速发展和电压等级的不断提高，气体绝缘变电站（GIS）在电力系统中的应用越来越广泛。

With the development of power industry and the rise of voltage grade , more and more gas insulated substations ( GIS ) are used in modern power systems .

提高港区380V电压等级的可行性研究

The Feasibility Study of Raise 380 V Voltage Level in Port Area

但是，目前单只IGBT器件的电压等级和电流容量还很有限，远远不能满足电力电子应用技术发展的需求。

However , the voltage and current ratings of IGBT device are low and cannot satisfy the requirements for development of application and technique of power electronics .

提出了一种用于35（66）kV及以下电压等级配电系统的微机逻辑闭锁保护新方案，包括配电线路保护和配电变压器保护。

A new scheme of digital logic blocking protection used for distribution system of 35 ( 66 ) kV or below is proposed , which includes distribution line protection and transformer protection .

110kV及以上电压等级交联电缆在线监测技术

On-line monitoring techniques for 110 kV and above XLPE cable

110kV及以上电压等级变压器绝缘油色谱异常实例分析

Project Analysis of Abnormal Chromatograph of Oil in 110 kV and above Transformers

±500kV高压直流输电（HVDC）换流阀绝缘型式试验是目前国际上最高电压等级的换流阀绝缘试验。

The valve insulation type test of ± 500 kV HVDC power transmission is the test of highest voltage grade now on the world .

2005年全国220kV及以上电压等级输变电设施可靠性分析

Reliability Analysis for Nation-Wide 220 kV and the Above Power Transmission and Transformation Facilities in 2005

西宁城网20kV电压等级适应性分析

Analysis on Adaptability of 20 kV Voltage Level to the Xi'ning City Electric Grid

文章论述了西北地区发展750kV电压等级输电系统的必要性、可行性和采用FACTS技术的重要性。

The paper demonstrates the necessity , feasibility of developing 750 kV transmission system in the northwest regions and importance of application of FACTS technique .

1000MW等级火电机组厂用电电压等级的选择

Selection of Auxiliary Power Voltage Grade for 1 000 MW Thermal Power Units

1000MW机组高压厂用电电压等级优化

Optimizing on Voltage Classes of HV Electrical Auxiliary System of 1 000 MW Units

针对西北地区规划发展750kV电压等级输电系统，讨论了系统采用SVC技术的可行性。

This paper discusses the feasibility of the adoption of SVC in the 750 kV power transmission system planned in Northwest China .

随着GIS运行电压等级的提高，因隔离开关、接地开关和断路器的操作引起的快速暂态过电压（VFTO）将更加严重，对运行安全造成威胁。

With the increasing of GIS voltage class , some switching operations or line to enclosure faults in GIS may cause Very Fast Transient Over-voltages ( VFTO ), which may seriously damage the operation safety .

对基于H桥多电平逆变器的网侧VSC结构及其控制策略进行了研究，采用载波相移PWM控制技术的级联多电平逆变器能提高输出电压等级，提高输出并网电能质量。

Structure and control strategy of VSCs of H-bridge cascaded multilevel inverters are present , the paper researches carrier phase shift PWM control strategy of cascaded multilevel inverters , it can obtain a higher voltage rank and a better power quality .

然而伴随着HVDC系统电压等级与输送容量的增长，直流输电线路的谐波污染也变得日益严重，影响了系统的运行并且对通信造成干扰。

However , along with the growth of voltage grade and transmission capacity of HVDC systems , increasingly serious harmonic contamination has been brought into DC transmission lines , which causes deterioration in system operation and interference to communication .

交联聚乙烯（XLPE）绝缘材料凭借其优越的电气、耐热及机械性能被广泛应用于各电压等级的电力电缆，其绝缘可靠性直接关系到电力系统的安全运行。

XLPE insulated power cables are widely used in urban power system because of the excellent physical , mechanical and dielectric properties of the insulation , the safety of the grid is deeply dependent on the insulation reliability .

本装置的研制成功对提高配电网的安全性具有重要的科学意义和良好的应用前景，并能对以后10kV以上电压等级的过电压实时记录装置的研究取得一些经验。

The successful develop of device can improve reliability of distribution , can bring some operating experience for realtime and automatic recording overvoltage in higher voltage level power system .

采用超宽频带局部放电测试系统，研究了玉泉变运行中的110kV电压等级GIS各关键部位盘式绝缘子的超宽频带局部放电信号。

By using an ultra-wide frequency band partial discharge detecting system , the discharge signal from disk-type spacer in key part of 110 kV GIS ( which is used in Yuquan power supply substation ) is acquired and studied .

对于较高电压等级的电缆，本文通过对绝缘参数的估算得出结论：几种已有的针对较低电压等级电缆的在线监测方法，难以有效地用于110KV的XLPE电缆绝缘在线监测。

For those of high voltage level , after the estimate of their insulation parameters we draw the conclusion that those above methods cannot apply to on-line insulation monitoring of110KV XLPE cable .

750kV电压等级是西北电网发展的必然选择

750 kV - an inevitable choice of higher voltage grade for Northwest Power Grid in China

10kV异步电动机因其电压等级与电网电压相一致，使供配电系统结构大大简化，不需要装设主变压器。

The power distribution system of 10 kV asynchronous motor need not installing main transformer because the voltage class of 10 kV asynchronous motor is corresponding with electric network voltage .

可编程控制器在高于24V的直流电压等级控制回路中应用时需解决输入模块的电压变换和谐波干扰等问题。

In the application of above 24V fort current voltage grade control circuit , Voltage Alternating and resonant wave interference of input model for Programmable Logic Controllers must be resolved .

±800kV直流输电工程的电压等级高、输送容量大，出现故障时对交流系统的影响较大，在电力系统中的地位非常重要，对可靠性要求很高。

The ± 800 kV DC power transmission project requires high reliability , because its high voltage level and large capacity will significantly affect the AC system if malfunction occurs .

发展750kV电压等级输电线路和采用FACTS技术是加快西北能源开发，实施西电东送的重要措施。

Development of 750 kV transmission lines and application of FACTS technique is an important measures to speed up the development of energy resources in Northwest China and realization of power transmission from west to east .

现将根据设计的要求，设计一座110KV变电站，向附近的用户供电，所设计的变电站的电压等级为110/35/10KV。

Now according to design requirements , design a110KV substation , power supply to nearby users , the design of substation voltage levels for the110 / 35 / 10KV .