而被称为“同步向量”的设备能以一秒30次或更快的速度采样电压和电流——向电力公司和系统操作员提供有关电网健康状况的信息更为精确。
Devices called synchrophasors can sample voltage and current 30 times a second or faster-giving utilities and system operators a far more accurate view of the health of the grid.
因此，将类比电路操作在与数位电路同样的低电压下更是重要的。
Therefore, it is significant for analog circuits to operate at the same low supply voltage as digital circuits.
本文介绍了变电站专家系统的组成以及目前在编制操作票、故障诊断、电压无功控制、在线培训等方面的应用。
In this paper, the composition of the substation expert system, and its application in weaving operation ticket, fault diagnosis, VQC and training online have been introduced.
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.
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.
输出电压的负极与电子天平壳体连接。在进行操作时，电子天平壳体允许接地。
The pole of the output voltage is connected to the balance housing, which can be grounded for operation.
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.
在变电站内，开关的操作将产生瞬态过电压。
In substations, Switching operation will give rise to transient overvoltage.
这种操作模式也可解决与操作温度高的传统控制器的问题，传统控制器由于温度造成PV电压而终止输送电流。
This operating mode can also solve problems associated with very high temperature operation where conventional controllers cease to deliver current due to temperature induced PV voltage reduction.
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.
本文阐述了一个计算超高压变压器在操作波耐压试验条件下线圈中电压分布的方法。
This paper describes a method for calculating the voltage distribution in EHV transformer windings during switching impulse withstand test.
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.
调整内部极限和扳机电压可以修正定时器的操作，扳机电压是通过将外部电压（或电流）应用于CONT来实现的。
The operation of the timer can be modified by modulating the internal threshold and trigger voltages, which is accomplished by applying an external voltage (or current) to CONT.
在任何电路，使用唯一的电压源操作的，比如电池，电流是沿着相同方向流动的。
In any circuit which operates from a steady voltage source, such as a battery, current flow is always in the same direction.
在操作中，微弱电流通过元件，电压与电阻正比，然后测量并转换为温度校正的组件。
In operation, a small excitation current is passed across the element, and the voltage, which is proportional to resistance, is then measured and converted to units of temperature calibration.
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.
提出了球—板间隙和环—板间隙正操作冲击50%击穿电压的估算公式。
Formulas for estimating 50% breakdown voltages of sphere-plane and ring-plane gaps are presented.
即使在高电压下操作，它们也能符合近些年电子学提出的安全标准。
Even at higher operating voltages, they also match safety standard which only the electronics of recent years can provide.
推荐的操作条件- - -如果没有说明，电压符合VEE。
Recommended Operating Conditions - Voltages are with respect to VEE unless otherwise stated.
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.
通过操作冲击电压的生物放电试验，研究了带电作业中屏蔽服对人体的防护效果。
Through the breakdown tests of life-form under switching impulse voltage, the protective effect of conductive clothes is studied.
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.
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.
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.
文中给出实用计算法，以便根据冲击回路参数估算操作波的波头、波尾和电压效率。
A practical calculation method is given. With the parameters of the impulse circuit the wave front and tail and the voltage efficiency can be calculated.
所进行的操作波试验也是为即将出现的更高电压的变压器准备合适的耐压试验方法。
The field tests thus performed will offer a suitable testing method to transformers of still high voltage.
随着超高压气体绝缘变电站（GIS）的广泛使用，由隔离开关（DS）操作引起的快速暂态过电压（VFTO）的危害更加明显。
The application of gas insulated substation(GIS) has expended year by year, Harm of the very fast transient voltages (VFTO) caused during disconnecting switches (DS) operation becomes more obvious.
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.
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.
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.
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