1)ferroresonance[,fer?u'rez?n?ns]铁磁谐振
1.Research on PT Ferroresonance and Resonance Elimination Measures Based on ATP-EMTP;基于ATP-EMTP的PT铁磁谐振与消谐措施研究
2.Simulative analysis of substation ferroresonance and its suppression measures;变电站铁磁谐振仿真分析及抑制措施研究
3.Simulation research on influence of initial capacitor voltage value on CVT ferroresonance;电容电压初值对CVT铁磁谐振影响的仿真研究
英文短句/例句
1.Simulation Research on the Prevention Measures for Ferro-resonance in 10 kV Networks10kV电网铁磁谐振消谐仿真的研究
2.Ferro-resonance and preventive measure of electromagnetic voltage transformer in isolated neutral system电磁式电压互感器的铁磁谐振及防范
3.DC detection ferro-resonance type automatic voltage regulator直流检波铁磁谐振式自动稳压器
4.ferro-resonance type automatic control constant-voltage rectifier铁磁谐振式自动控制恒压整流器
5.Analysis on Ferromagnetic Resonance of 220kv System in MENG DA Power Plant;蒙达公司220KV系统铁磁谐振的分析研究
6.Analysis and Prevention Measurement of Ferroresonance Overvoltage in 35kV Power System;35kV系统铁磁谐振过电压的分析及抑制
7.Superficial Discussion on Countermeasures of Removing Ferromagnetic Resonance in 6~35 kV Distribution Network6~35kV配电网铁磁谐振对策初探
8.Application of HHT to ferroresonance over-voltage recognitionHHT在铁磁谐振过电压辨识中应用
9.The Research on Ferroresonance Elimination Device of Grounded Low Current in Power Systems;小电流接地电力系统铁磁谐振消谐装置的研究
10.The Control of Ferro-resonance by the Performance of Voltage Transformer利用电磁式电压互感器本身特性控制铁磁谐振
11.Diagnosis Method in TV Ferromagnetic Resonance Overvoltage电磁式电压互感器铁磁谐振过电压的判定方法
12.The Simulation in Research on Ferroresonance in Grounded Neutral Point;中性点直接接地系统铁磁谐振的数学仿真
13.The Digital Simulation of Ferroresonance in Power System And Wavelet Analysis;电力系统铁磁谐振的数字仿真及小波分析
14.Research on Monitoring and Controlling of Arc-suppression and Ferroressonance in Distribution System;配电网消弧及铁磁谐振监测与控制技术的研究
15.Discussion on the Generation Mechanism of Ferromagnetic Resonance Overvoltage电力系统铁磁谐振过电压产生机理的探讨
16.Treatment measures of ferromagnetic resonance in 6kV auxiliary power system of power plant发电厂6kV厂用电系统铁磁谐振处理对策
17.Ferromagnetic Resonance Over-voltage in Neutral-point Indirect Earthing System中性点非直接接地系统铁磁谐振的产生及措施
18.Development of Fault Diagnosis Expert System’s Database for Ferromagnetic Resonance of the Power Factory动力厂铁磁谐振故障诊断系统数据库的设计
相关短句/例句
ferromagnetic resonance铁磁谐振
1.Synthetic comparison between some factors in undue voltage of ferromagnetic resonance;不同接地方式下铁磁谐振过电压的综合比较
2.Development of Fault Diagnosis Expert System for Ferromagnetic Resonance of the Large-scale Enterprise s Power Factory;基于专家系统的大型企业动力厂铁磁谐振故障诊断系统的开发
3)ferro-resonance铁磁谐振
1.Decrease measures in TV ferro-resonance overvoltage;限制TV铁磁谐振过电压的措施
2.Simulation Research on the Prevention Measures for Ferro-resonance in 10 kV Networks10kV电网铁磁谐振消谐仿真的研究
3.PETERSON builds the classic model for researching ferro-resonance.铁磁谐振是非有效接地系统中常见的1种现象。
4)ferro resonance铁磁谐振
1.Based on the analysis of the phenomena and hurt of Ferro resonance in the electric power system, a ferro resonance Eliminating method is put forward.在分析电力系统铁磁谐振的现象和危害的基础上 ,提出了一种单片机控制在线监控电压互感器工况及自动消除铁磁谐振的方法 ,并介绍了如何利用该方法进行硬件和软件的设计。
2.Base on the analysis of mechanism and characteristic of ferro resonance of isolated neutral system,this paper discusses the preventive methods in common use,points out their localization,application scope and offers some other experience.在分析中性点不接地系统铁磁谐振的机理和特点的基础上 ,对常用的消谐措施进行了讨论 ,指出其局限性、适用范围及使用中应注意的问
5)anti-ferromagnetic resonance抗铁磁谐振
1.The wiring principle of an anti-ferromagnetic resonance voltage transformer is presented and the problems in use are analyzed.介绍和分析了抗铁磁谐振电压互感器的接线原理和使用中容易出现的问题,并针对其安装接线和验收投运提出了注意要点和测试方法。
6)PT ferromagnetic resonancePT铁磁谐振
1.characteristics and harmfulness of PT ferromagnetic resonance.本文对PT铁磁谐振的产生条件、谐振时的特点及其危害性作了定性分析,并针对以往消谐设备存在的问题,提出采用微机型消谐装置的有效性和实用性。
延伸阅读
电力系统铁磁谐振过电压电力系统铁磁谐振过电压ferro-resonance over-voltage in electric power system d旧n,Jx,tong士旧e7 xleZhen guodjonyo电力系统铁磁请振过电压(f erro一resonanceovervoltage in eleetrie卯wer盯stem)在由带铁芯的电感元件和串接电容组成的振荡回路中,由于铁芯磁饱和所引起的非线性的谐振过电压。电力系统中的铁芯电感元件系指各类电气设备的铁芯励磁绕组。在额定工作电压下,链过这些绕组的最大磁通密度略低于磁饱和点,故正常运行时的电感是线性的.当由于操作或故障而发生电压升高和出现哲态过程时,铁芯趋于饱和,电感呈现出非线性状态,从而会在振荡回路中激发起持续性的铁磁谐振现象。 电力系统中最常出现的铁磁谐振过电压,包括电力系统断戏谙振过电压、电力系统电压互感器谙振过电压以及电力系统非全相运行过电压。 自激与他激对于某一既定的铁芯电感,在不同电容参数的配合下,有时可能自发地产生的谐振现象,称为自激或软激发;有时则需经历一定的暂态过程,以使瞬间的励磁电流达到足够离的磁饱和点才能发生的谐振现象,称为他激或硬激发。对于他激,由于每次形成激发的起始条件和相应暂态过程的强烈程度不同,每次激发的结果,谐振可能产生,也可能不产生,呈现出一定的概率规律。 由于自激谐振的条件决定于谐振回路的参数配合和电源电动势的大小,而与暂态过程的激发与否无关,因此即使级慢而平滑地改变某一参数或电源电动势,自激振荡也可能突然发生或消失,这种现象称为铁磁谐振的跃变。 工频、高频和分颇谐振铁磁谐振的频率可以等于电源频率的K倍,K~1时称为工频谐振或基频谐振,K值可能等于简单的整数(例如2,3,5等)或分数(例如1/2,1/3,1/5等),分别称为高频谐振和分频谐振。在高频和分频谐振电压的波形中,除谐振频率的分盘外,还存在着足够大的与电源电动势平衡的工频强制分量。 在发生高频或分频谐振时,维持谐振的能量是由工频能童转化而来,显然,只有工频能量被有节奏地引人回路,才能达到累积的能量转移,这是K值应是简单整数或分数的主要原因。 图中所示为最简单的谐振回路,E为工频电动势,I、UR、UC和UL为K次谐波(K护l)的电流和压降,相t关系如图中所示.这里广,9护,UJcos尹(二0,即铁芯电感放出能量,从而实际成为一个转化电源能量以抵偿电阻损耗和维持谐振的K次谐波的发生装置。
