真空断路器的操作过电压严重威胁电力系统和设备的安全。
The switching-surge overvoltage of the vacuum circuit breaker can seriously imperil safety of electric system and equipment.
现代超高压避雷器必须能在这些高能量的操作过电压下放电。
Modern EHV arresters must be capable of discharging these high-energy switching surges.
切除空载变压器是真空断路器操作过电压问题最严重的情况。
Interrupting no load transformer is the most serious case in vacuum circuit breaker switching overvoltage.
操作过电压是由系统故障或开关操作等引起的过渡过程过电压。
System failure or switch operation caused transitional process overvoltages, which also called switching overvoltages.
具有过流、短路、欠压、断相、漏电闭锁、操作过电压等保护。
It can provide protection from over current, short circuit, undervoltage, phase failure, leakage lockout, and operation overvoltage.
文章就中性点小电抗的接入对系统的操作过电压的影响进行了研究。
In this paper, the effect of the neutral grounded by the low reactance on switching over-voltage in the power system is studied.
选用四星型MOA作为限制真空断路器操作过电压的主保护器，效果十分明显。
The effect was obvious to select four-star connection MOA was a main protector to limit overvoltage in operation of a vacuum disconnector.
保护设备电源系统免受雷击过电压、电网波动、操作过电压、静电放电等造成的损害。
Protection equipment power supply system from lightning over-voltage, power grid fluctuations, operating over voltage, electrostatic discharge, etc.
通过对真空断路器操作过电压成因的阐述，探讨小水电领域内常用的过电压保护设备。
This paper presents the reasons leading to switch overvoltage for vacuum circuit breaker, and then discusses the usual overvoltage protection device in the small hydropower station.
通过计算和分析表明：变压器中性点接入小电抗对系统的操作过电压基本不会产生影响。
Through deduction and analysis, the conclusion can be made: low reactance at the neutral point of transformer has little effect on the switching over-voltage in power systems.
对有补偿和无补偿的超高压输电线路在工频过电压、操作过电压方面进行了对比性研究。
Comparative analysis of series compensated and non series compensated EHV transmission line in power frequency over-voltage and switching over-voltage is destriked in this paper.
根据简化后的集中参数线路模型，详细分析并推导了特高压系统各种操作过电压的近似表达式。
The approximate expression of various transient over-voltage have been obtained by analysis and deduction according to the simplified transmission line model.
随着远距离输电线路电压等级的提高，大型电站中的操作过电压威胁着大型发电机的绝缘安全。
With the increment of working voltage for the long-distance transmission line, the switching overvoltage in large power stations is threatening the insulation safety of large generators.
输电线路在运行过程中承受工作电压、操作过电压或大气过电压时，都可能会发生绝缘闪络事故。
When bearing operating voltage, switching overvoltage or atmospheric over-voltage in the process of operating, the transmission line are likely to occur insulation flashover accident.
高压智能同步开关技术是有效抑制电力系统操作过电压和涌流以及全面提高电能质量的关键技术。
Intelligent synchronous high voltage switch can be utilized to minimize the switching overvoltages and high inrush currents in power systems, as well as to improve the overall power quality.
经试验和挂网试运行考核，装置性能与结构均满足运行的要求，能有效降低电容器组操作过电压。
It connected with electric power net has been operating, function and structure of the system can satisfy operating request and actively reduce switching overvoltage of shunt capacitors.
内部过电压又称操作过电压或谐振过电压，对电气设备的安全运行和操作人员的人身安全构成严重威胁。
Internal overvoltage is called switching overvoltage or resonance overvoltage, and it threatens the safe operation of electrical equipment and the personal security of operating personnel.
再根据系统确定的操作过电压倍数及电气绝缘强度（空气间隙）来确定在人不宜到达地方的交叉跨越距离；
We decide the cross and span clearance by over-voltage times and electrical insulation strength (air spacing) from the system major in places that the public not easy to arrive.
本文先对真空开关各种操作过电压产生过程进行理论分析，为过电压分析及保护仿真研究提供了理论依据。
At first, theoretical analyses are discussed about various VCB switching overvoltages 'generating process. This can provide theoretical basis for overvoltages 'analysis and protection research.
最终的目标是从真空断路器机械特性方面入手，降低操作并联电容器组时的重燃率、并减小操作过电压危害。
The aim is to reduce the reignition rate and over-voltage damage from the perspective of the mechanical characteristics of the vacuum breaker switching shunt capacitor Banks.
ZP-PS系列插座式电源浪涌保护器是专门为通信、电子设备在操作过电压和雷电感应频繁的场合而设计的。
ZP-PS series socket power surge protector is designed for communication, electronic equipment in the operation of over-voltage and lightning induction frequency.
目前，由于系统的电网等级不断提高，操作过电压也随之不断升高，这对电气设备的正常运行造成很大的危害。
The switching over-voltage is rising in pace with the raise of the power system grade, which is very harmful to the electrical equipment in the network.
目前对操作过电压的研究多数只是宏观监测、分析过电压波形，而没有深入研究电动机内部的电场分布及其变化情况。
Now, most researches on over-voltage is just done on monitoring and analyzing the over-voltage waveform, but not studying the deeply electrical fields.
主要内容包括：工频暂时过电压，潜供电流，操作过电压，金属氧化物避雷器主要参数，特高压电气设备的绝缘水平等。
Paper covers temporary overvoltages, second arc current, switching overvoltage, major parameters of MOA and insulation level of UHV AC apparatus.
因此有必要对电缆残余电荷对系统操作过电压的影响进行分析，分析影响重合闸过电压的因素，论证采用重合闸的可行性。
So it's necessary to analyze the relationship between residual and the over-voltage, studying the feasibility of reclosing operation and the factors of affecting over-voltage of reclosing operation.
利用场路综合分析的方法，来分析真空断路器产生的操作过电压对电动机的绝缘造成的影响和危害，具有一定的现实意义。
It's useful to analyze the effect and damage to the large motor insulation by the VCB switching over-voltage based on the circuit-field analysis method.
在实际的操作过电压冲击过程中，操作冲击波在大型电动机绕组中的传播过程和操作过电压在输电线路中的传播过程非常相似。
In the process of the over-voltage surging to the motor, it transmits in the stator like transmitting in the transmitting line as a wave.
本文主要针对雷电和操作过电压所引起瞬间过电压对电子设备系统的损坏，来探讨加装电源防雷器时采用四模块和3 +1模块时性能比较和分析。
Aiming at mangling of electron equipment due to transient over voltage from thunder and operation between 4 and 3 + 1 source defend thunder equipments is discussed.
本文主要针对雷电和操作过电压所引起瞬间过电压对电子设备系统的损坏，来探讨加装电源防雷器时采用四模块和3 +1模块时性能比较和分析。
Aiming at mangling of electron equipment due to transient over voltage from thunder and operation between 4 and 3 + 1 source defend thunder equipments is discussed.
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