断路器在输电电压下的快速开断对输电系统是明显有利的。
Faster interruption of circuit breakers in the transmission voltage offers significant advantage to the transmission system.
电网规模的扩大、输电电压等级的提高，使得继电保护在电力系统中的地位变得更加重要。
With the expansion of power grid and the increase of the transmission voltage grade, the status of relay protection in power system is becoming more and more important.
1949年我国火电最大机组为1万千瓦，输电电压等级最高为220千伏，且全部为外国设计制造。
In 1949, the largest thermal power unit of China was 10 MW and the highest transmission voltage was 220 kV, all designed and made by foreign countries.
常规并联电抗器固定接入超高压输电系统，不能保证各种运行方式下系统输送能力和母线的稳态电压。
Routine shunt reactor fixed on the EHV transmission system can not guarantee the transmission capability and steady state voltage of system under different operation modes.
轻型高压直流输电是在电压源换流器和绝缘栅双极晶体管基础上开发出来的一种新型输电技术。
The light HVDC transmission is a new power transmission technology based on the voltage source converters(VSCs) and IGBT power semiconductors.
对基于电压源换流器(vsc)的直流输电(VSC - HVDC)系统的起动过程控制策略进行了研究。
The control strategy of start-up process of HVDC based on voltage source converter (VSC-HVDC) is discussed.
此设计使输电母线易于电压控制。
This design facilitates voltage control of a transmission bus.
利用这一模型，针对含有大型风电场的输电系统，对其静态电压稳定约束条件下的最大输电能力(TTC)展开研究。
Based on the proposed model, total transfer capability (TTC) of power system containing large-scale wind farms is investigated under the constraint condition of static voltage stability.
提出一种利用同步电压相量进行输电网络故障定位的新方法。
A novel fault locating method for transmission network using synchronized voltage phasor is presented.
提出了利用二次模变换计算同杆双回输电线路潜供电流与恢复电压稳态值的方法。
A new method for calculating secondary arc current and recovery voltage on double-circuit transmission lines by twice-model transformation was proposed.
随着电压等级的提高及线路结构的变化，输电线路雷击跳闸率计算法也不断地改进。
With being higher the voltage and varying of transmission line structure, the calculation method of lighting trip-out rates should be improved continually.
这里须滤去由电抗器相位控制引起的谐波电流以避免不能接受的输电母线电压畸变。
These may be required where harmonic currents caused by the thyristor phase control of the reactor current must be filtered to prevent unacceptable transmission bus voltage distortion.
本文重点讨论在静态电压稳定性约束下的系统输电能力计算问题。
The calculating problem of the power system transmission capability in constraint conditions of steady-state voltage stability is discussed in this paper.
冰的电气特性影响输电线路覆冰绝缘子闪络电压。
The flashover voltage of iced insulators of transmission lines is affected by the electrical characteristic of ice.
提出了一种基于双端电压暂态信号小波变换的高压输电线路快速保护算法。
A new high speed protection criterion for high voltage transmission line based on the wavelet transform of transient voltage signals from the two ends of the line is presented.
由电源或输电线输入到包括镇流器的电压。
Voltage provided to a ballast by a power line or power supply.
认为电力电子技术不仅可以在高压输电系统中用于提高稳定、控制电压、相角和潮流，也具备了快速控制大电网的能力。
It is also believed that power electronic technology is able to not only raise and stabilize the controlling voltage, phase Angle and tidal current, but also fast control big power supplying network.
传统的输电能力只是考虑了一些物理特性的因素，如热极限、电压限制和稳定性限制。
The traditional transfer capability only considers some physical property factors, such as hot limit, voltage limit and stable limit.
针对输电网提出了一种基于同步相量测量信息的电压稳定指标。
A voltage stability index based on synchronized phasor measurements is presented for trans - mission systems.
高压输电线路发生故障后的暂态电压或电流分量中包含比工频分量更多的故障信息，充分利用这一信息是构成具有绝对选择性单端无通信保护的前提。
Moreover, it is the basis of constructing a new non communication protection through absolutely utilizing the fault information which is comprised in transient component of fault current or voltage.
多直流馈入输电系统的出现给电压稳定研究带来了全新的课题，电压失稳有可能成为这类电网安全稳定运行的最大威胁。
The study of voltage stability about multi-infeed DC transmission systems is a new research field, so that voltage instability may probably threaten the security and stability of power grid.
变电站避雷器安装位置和数量及输电线终端塔的接地电阻对雷电过电压有著直接的影响。
The location and quantity of arrestor and impulse grounding resistance of towers has direct influence on lighting overvoltage.
某一电压等级的输电距离，受输电线路的电压损失及输送容量限制。
The transmission distance at certain voltage level, is restricted by power line's voltage loss and transmission capacity.
雷击是导致输电线路故障的重要原因之一，杆塔的雷电冲击响应特性是决定输电线路雷电过电压的重要因素。
Lightning stroke is one of the important reasons that result in power failure. Tower lightning surge response performance is the important factor deciding transmission line lightning over-voltage.
特高压输电与较低电压输电相比有许多优点，我国采用特高压输电是必然的趋势。
Comparing to lower voltage power transmission, EHV power transmission has more advantages and its application is the necessary tendency in China.
在基于电压源换流器的高压直流输电(VSC -HVDC)交直流混合风电场并网系统中，控制VSC - HVDC送端站注入到PC C点的无功功率可以抑制电压波动。
In hybrid wind farm integration system based on HVDC of voltage source converter (VSC-HVDC), the voltage fluctuation can be alleviated by compensating reactive power to PCC from VSC-HVDC sending end.
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.
静止无功发生器可提高交流输电系统和配电系统的电压调节能力、系统稳定性和功率因数。
Static var generators are used to improve voltage regulation, stability, and power factor in ac transmission and distribution 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.
输电需要采用小电流和高电压，或者大电流和低电压。
We need a small current and a high voltage; or a large current with a low voltage.
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