氧化锌避雷器
- 网络Zinc oxide lightning arrester;MoA;mov
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复合外套氧化锌避雷器内部结构与性能关系的研究
The Relation between the performance of polymeric MOA and Its Insulation Construction
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配电网中复合无间隙金属氧化锌避雷器运行故障分析
Fault Analysis of Composite Gap-free MOA in Distribution Network
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基于DSP的氧化锌避雷器在线监测装置的研究
Research on On-line Monitoring Equipment of Metal Oxide Surge Arrester Based on DSP
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氧化锌避雷器在基波PT铁磁谐振下的工况分析
Analysis of Working Circumstances of Metal-Oxide Arresters under Fundamental Frequency PT Ferroresonance
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本文讨论氧化锌避雷器在基波PT铁磁谐振过电压下的工作状况。
The working circumstances of metal - oxide arresters under fundamental frequency PT ferroresonance are discussed in this paper .
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仿真中运用带合闸电阻的开关、RC阻容装置及其氧化锌避雷器来限制操作过电压,并取得了一定的成效。
The switch with closing resistor , RC equipment and MOA are used to limit switching overvoltages . Certain effect is obtained .
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氧化锌避雷器(MOA)是电力系统重要的过电压保护设备,对其进行在线监测,及时、准确地了解其运行状况,对电力系统安全运行十分重要。
Metal Oxide Surge Arrester ( MOA ) is an important over-voltage protective equipment of power system .
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介绍了研制的以浮点型DSP为主处理器的氧化锌避雷器泄漏电流测试仪,阐述仪器带电测量的工作原理和仪器的设计要点。
In this paper the development of tester of leakage current of MOA based on floating DSP is introduced , and the working principle in field and design method are given .
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分析了存在相间耦合影响时依据LCD-4仪器检测原理得到的氧化锌避雷器阻性电流结果及其存在的问题。
In the paper , considering the phase-to-phase coupling current component in ZnO surge arresters , the resistive leakage current of ZnO surge arrester gained by detecting principleof LCD-4 instrument is analyzed .
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一起110kV氧化锌避雷器的异常缺陷
The Abnormal Defect of 110 kV ZnO Metal Oxide Surge Arresters
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110kV氧化锌避雷器事故分析及防范措施
Analysis of Accident of 110 kV MOA Arrester and Precaution
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氧化锌避雷器(MOA)是一种新型保护器,具有优良的过电压保护特性,在电力系统中得到广泛的应用。
MOA is a newly developed protector and has very good over voltage protection characteristics , which makes it is applied widely in power system .
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一起110kV氧化锌避雷器事故分析
The Fault Analyses of 110 kV Metal Oxide Arrestors
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浅议220kV韶郭线安装氧化锌避雷器后的运行效果
Analysis on operational effects of 220 kV Shao Guo transmission line with ZnO arresters adopted
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氧化锌避雷器放电次数及泄露电阻电流、电容电流可用RS485接口以数字量输出。
Zinc oxide lightning arrester discharge frequency , leakage resistance current , and capacitive current can be output digitally with interface RS485 .
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110kV氧化锌避雷器的维护及试验
Maintenance and Examination of 110 kV Zinc-Oxide Arrestor
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LCD-4仪器检测三相氧化锌避雷器阻性电流的分析
Analysis on Resistive Leakage Current of ZnO Surge Arresters Detected by LCD-4 Instrument
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220kV无避雷线长江大跨越段氧化锌避雷器通流容量计算
Calculating the Energy Capability of Metal Oxide Arrester of the 220 kV no Grounding Lines Section across the Yangtse River
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瓷套式500kV氧化锌避雷器的电位分布计算及均压环设计
Calculation of Potential Distribution and Design of the Grading Rings for a New Type of Porcelain 500 kV Metal Oxide Arresters
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通过监测电容性设备介质损耗(tanδ)、氧化锌避雷器阻性电流、变压器铁心电流和变压器油中各气体的含量来判断电气设备的绝缘性能。
The insulation properties of electric equipment are judged by monitoring medium consumption ( tan δ) of capacitance equipment , resistance current of zinc oxide lighting arrester , core current of transformer , and content of gas in transformer oil .
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3~60kV电压系统中无间隙氧化锌避雷器技术参数制订原则与方法的讨论
Discussion on the Specification of Metal Oxide Surge Arrester ( MOA ) in 3 ~ 60kV Power System
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用EMTP程序对用不同的氧化锌避雷器限制GIS内快速暂态过电压的效果进行了计算,并给出了快速暂态过电压与暂态地电位升高的简单算式。
This paper uses EMTP program to calculate the effects of suppression on very fast transient overvoltages in GIS when employing different ZnO Surge Arresters , and gives a simple formula of transient grounding potential rises versus very fast transient overvoltages .
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分析了中性点小电阻接地系统中带串联间隙、同参数及四星形接法氧化锌避雷器的运行工况,重新设计TBP后提高了保护性能并降低了造价。
This article analyzes operation condition of Zinc Oxide Arrester of TBP in low resistance earthing system . Redesign of parameter of TBP not only increases protection capability , but also reduces cost of TBP .
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V形串单支复合绝缘子可比常规长300mm,根据不平衡绝缘原理减少线路型氧化锌避雷器的安装数量。
The length of composite insulator on " V " string may be more 300 mm than common composite insulator , therefore reduce back strike probability of upper conductor ; according to unbalanced insulation principle , may reduce the installed amount of line surge arrester .
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并分别计算了变电所内采用氧化锌避雷器和FZ-35型避雷器保护时变电所的可靠性;
The protection reliability of the zinc-oxide arrester and that of the type FZ-35 valve attester have been calculated respectively , When any one of the two devices is adopted in substation .
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是电力系统GW5型隔离开关、氧化锌避雷器等的安装和拆除工作的创新,具有极高的安全性与稳定性;
The utility model is the innovation of mounting and dismounting the GW5 type isolation switch and a zinc oxide lightning arrester in the electric power system , with a rather high safety and stability .
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因此,对氧化锌避雷器的定期检查和维护必不可少。
So the regularly inspection and maintenance on MOA is indispensable .
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并联电容器装置保护用氧化锌避雷器的选型问题
Selection of Zinc Oxide Surge Arresters for Installation of Shunt Capacitors
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一种可溯源的氧化锌避雷器测试仪校验装置的研制
Development of a traceable calibration device for ZnO arrester testing instrument
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氧化锌避雷器运行电压下测量阻性电流
Resistance Current Measurement of Zinc Oxide Surge Arrestor Under Operating Voltage